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Evonik Corporation patents


Recent patent applications related to Evonik Corporation. Evonik Corporation is listed as an Agent/Assignee. Note: Evonik Corporation may have other listings under different names/spellings. We're not affiliated with Evonik Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "E" | Evonik Corporation-related inventors


Thermoplastic composite pipe with multilayer intermediate lamina

. . . . . . A process for producing a thermoplastic composite pipe is provided. The thermoplastic composite pipe thus produced contains a liner, two or more composite layers composed of tape laminas, and a single- or multilayer intermediate lamina arranged between different composite layers. ... Evonik Corporation

Nitrogen-containing compounds suitable for use in the production of polyurethanes

The present invention provides for the use of nitrogen compounds of formula (i) and/or of corresponding quaternized and/or protonated compounds for production of polyurethanes, compositions containing these compounds and polyurethane systems, especially polyurethane foams, which have been obtained using the compounds.. . ... Evonik Corporation

Supplement material for use in pet food

The invention concerns a method of sustainably producing an pet food product or product, said method comprising the step of formulating a pet food product by replacing all or part of fish oil in the composition with a single microbial source of eicosapentaenoic acid (“epa”) and docosahexaenoic acid (“dha”). In a preferred embodiment, the microbial source comprising dha and epa derives from a microorganism/microbe of the genus schizochytrium or thraustochytrium.. ... Evonik Corporation

Apcha as a building block in curing agent formulations for structural adhesives

The invention relates to structural adhesive compositions and more particularly to two-component (2k) structural adhesive compositions. The two components chemically react to bond structural surfaces. ... Evonik Corporation

Trimerization catalysts from sterically hindered salts and tertiary amines having isocyanate reactive groups

The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt used in combination with a tertiary amine catalysts having isocyanate reactive groups and methods to produce a polyisocyanurate/-polyurethane foam using such trimerization catalyst compositions.. . ... Evonik Corporation

Compounds based on adducts with isocyanates for coating compositions

The present invention relates to compounds based on adducts with isocyanates. The present invention further relates to a method for preparation thereof, compositions comprising these compounds and also use thereof as, or for producing, coatings.. ... Evonik Corporation

Transparent sound-absorbing noise protection element

. . A noise protection element for the insulation and absorption of sound emissions from vehicles, more particularly road vehicles and railway vehicles and also aeroplanes moving along a traffic route. The noise protection element includes a plate having a transparent material, where a noise-absorbing material has been applied on at least one of the two surfaces of the plate, where the noise-absorbing material is a closed-pore polymer foam.. ... Evonik Corporation

N-hydroxyl ethyl piperidine (nhep): a novel curing agent for epoxy systems

The present invention relates to an amine-based curing agent comprising at least 1% by weight of at least one tertiary amine and, optionally, primary and/or secondary amines. The tertiary amine is preferably an n-substituted piperidine tertiary amine and, more preferably, n-hydroxyethyl piperidine (nhep). ... Evonik Corporation

Hollow fibre membrane cartridge and module for the separation of fluids

The present invention relates to novel cartridges and modules for separation of fluid mixtures, especially for gas separation, to a process for production thereof and to a method of use thereof.. . ... Evonik Corporation

Method for dehumidifying humid gas mixtures using ionic liquids

The invention relates to a process for dehumidifying a moist gas mixture. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention.. ... Evonik Corporation

Latent epoxy resin formulations for liquid impregnation processes for production of fibre composite materials

. . Latent epoxy resin formulations are suitable for liquid impregnation processes for production of fibre composite materials.. . ... Evonik Corporation

Dehydrogenation of olefin-rich hydrocarbon mixtures

The object of the invention is to specify a process for dehydrogenating alkanes in which such feedstock mixtures may be used having a high proportion of olefins, i.e. Approximately 1% by weight to 10% by weight. ... Evonik Corporation

Organophilic clays and drilling fluids containing them

. . The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure rc(o) with group r being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.. ... Evonik Corporation

Storage-stable one-component polyurethane prepregs and shaped bodies composed of polyurethane composition that have been produced therefrom

The invention relates to storage-stable one-component (1k) polyurethane prepregs and to shaped bodies produced therefrom.. . ... Evonik Corporation

06/07/18 / #20180155264

Catalytic oxidation of 3,5,5-trimethylcyclohexa-3-ene-1-one (ß-isophorone) with hydrogen peroxide to afford 2,6,6-trimethyl-2-cyclohexene-1,4-dione (keto-isophorone)

The present invention provides a novel process for producing 2,6,6-trimethyl-2-cyclohexene-1,4-dione (keto-isophorone) by catalytic oxidation of 3,5,5-trimethylcyclohexa-3-ene-1-one (β-isophorone) with hydrogen peroxide as the oxidant. In particular, the novel process includes phase transfer reagent in a biphasic system including an organic phase and an aqueous phase wherein the biphasic system includes 1) a tungsten polyoxyometallate as catalyst and hydrogen peroxide, and/or 2) a mixture of a) a mineral acid, b) hydrogen peroxide, and c) a metal tungstate.. ... Evonik Corporation

06/07/18 / #20180153967

Process for preparing a powder comprising a human coagulation factor protein and a lactic acid polymer

A process for preparing a powder, which includes one or more human coagulation factor proteins and a lactic acid polymer, involves mixing and dispersing a lactic acid polymer with a particle size d50 in the range 0.1-2 μm and the one or more human coagulation factor proteins in water. The dispersion is dried, and the resulting dried mass is compressed. ... Evonik Corporation

05/31/18 / #20180148743

Production of 3-hydroxybutyrate

There is provided amicrobial cell which is capable of producing acetoacetate, 3-hydroxybutyrate and/or 3-hydroxybutyrate variants, wherein the cell is genetically modified to comprise an increased expression relative to its wild type cell of: an enzyme e1 capable of catalysing the conversion of acetyl-coa to acetoacetyl-coa; an enzyme e2 capable of catalysing the conversion of acetoacetyl-coa to acetoacetate; and an enzyme e3 capable of catalysing the conversion of acetoacetate to 3-hydroxybutyrate and/or variants thereof.. . ... Evonik Corporation

05/31/18 / #20180148665

Process for removing chloropropanols and/or glycidol, or their fatty acid esters, from glyceride oil, and an improved glyceride oil refining process comprising the same

The present invention is directed to a basic ionic liquid treatment for removing chloropropanol and/or glycidol, or their fatty acid esters, from glyceride oil, as well as a process for refining glyceride oil which includes the basic ionic liquid treatment. The present invention also relates to uses of the basic ionic liquid and glyceride oil compositions obtained from the ionic liquid treatment.. ... Evonik Corporation

05/24/18 / #20180140556

Pharmaceutical or nutraceutical composition with resistance against the influence of ethanol

The invention refers to a pharmaceutical or nutraceutical composition comprising a core a) comprising an active ingredient and a water-insoluble polymer, a coating layer b) above the core a) comprising a salt of an alginic acid, and a coating layer c) above the coating layer b) comprising an anionic (meth)acrylate copolymer polymerized from a (meth)acrylate monomer mixture comprising 5-75% by weight in relation to the total weight of the (meth)acrylate monomer mixture of (meth)acrylate monomers with an anionic group, wherein the amount of the water-insoluble polymer in the core a) is 2 to 20% by weight in relation to the weight of the core a) and the amount of the salt of an alginic acid in the coating layer b) is 5 to 85% by weight in relation to the weight of the core a) and the amount of the anionic (meth)acrylate copolymer in the coating layer c) is 10 to 75% by weight in relation to the weight of the core a) and to the coating layer b).. . ... Evonik Corporation

05/17/18 / #20180135894

Absorption heat pump and sorbent for an absorption heat pump comprising methanesulfonic acid

. . . . The invention relates to the use of methanesulphonic acid as sorption medium in an absorption heat pump; a sorption medium for an absorption heat pump which comprises methanesulphonic acid and an ionic liquid; and an absorption heat pump having an absorber, a desorber, a condenser, an evaporator and a working medium comprising a volatile refrigerant and a sorption medium, wherein the sorption medium comprises methanesulphonic acid.. . ... Evonik Corporation

05/17/18 / #20180135085

Amino acid production

The present invention relates to a method of producing at least one amino acid from a carbon source in aerobic conditions, the method comprising: (a)step of producing ethanol and/or acetate from the carbon source in aerobic conditions, comprising (i)contacting a reaction mixture comprising—a first acetogenic microorganism in an exponential growth phase; —free oxygen; and —a second acetogenic microorganism in a stationary phase wherein the first and second acetogenic microorganism is capable of converting the carbon source to the acetate and/or ethanol; and (b)step of contacting the acetate and/or ethanol from step (a) with a third microorganism capable of converting the acetate and/or ethanol to at least one amino acid.. . ... Evonik Corporation

05/17/18 / #20180134850

Mixtures of cyclic branched siloxanes of the d/t type and conversion products thereof

Mixtures of cyclic branched siloxanes having exclusively d and t units and having no functional groups, with the proviso that the cumulative proportion of the d and t units having si-alkoxy and/or sioh groups that are present in the siloxane matrix, determinable by 29si nmr spectroscopy, is ≤2 mole per cent, are described, as are branched organomodified siloxanes obtainable therefrom.. . ... Evonik Corporation

05/17/18 / #20180133704

Catalyst for oxidation reactions, a method for its preparation and the use thereof

The present invention relates to a catalyst for oxidation reactions, particularly for oxidation of mercaptan dialkyldisulfides and/or dialklypolysulfides with oxygen to alkanesulfonic acids.. . ... Evonik Corporation

05/17/18 / #20180133133

Structured crystalline surfactant compositions

The invention relates to compositions which can be used for preparing structured formulations, to structured formulations comprising these compositions, and to processes for the preparation of structured formulations.. . ... Evonik Corporation

05/10/18 / #20180127980

Reinforcing bar, method for the production, and use

. . . . . . The invention relates to a rebar, to a method of production and to use of a composition. In particular, the invention relates to a rebar including a) at least one fibrous carrier, and b)and a hardened composition formed from b1) at least one epoxy compound, and b2) at least one diamine and/or polyaminein a stoichiometric ratio of the epoxy compound b1) to the diamine and/or polyamine component b2) of 0.8:1 to 2:1, as matrix material, and also c) optionally further auxiliaries and additives.. ... Evonik Corporation

05/10/18 / #20180127444

Bisphosphites having 2,4-tert-butylphenyl units and use thereof as ligands in hydroformylation

The invention relates to bisphosphites having 2,4-tert-butylphenyl units and a method for the preparation thereof. Furthermore, the invention relates to the use of the compounds as ligands in a ligand-metal complex. ... Evonik Corporation

05/10/18 / #20180126366

Phosphorous acid p,p'-[5,5',6,6'-tetramethyl-3,3'-bis(1-methylethyl)[1,1'-biphenyl]-2,2'-diyl] p,p,p',p'-tetrakis(2,4-dimethylphenyl) ester in hydroformylation

The compound of the formula (1) and its complexes with metal cations are used for catalysis in hydroformylation processes.. . ... Evonik Corporation

05/10/18 / #20180126361

Chromium- and nickel-free hydrogenation of hydroformylation mixtures

The invention is concerned with catalysts for heterogeneous hydrogenation of oxo process aldehydes. The problem addressed by the invention is that of developing a catalyst containing neither chromium nor nickel. ... Evonik Corporation

05/03/18 / #20180118926

Improving the rolling resistance of diene rubber tires by means of silane-modified polybutadienes

The invention relates to the use of silane-modified polybutadienes in rubber mixtures, in particular for improving the rolling resistance of diene rubber tires. In particular, the invention is directed to silane-modified polybutadienes in rubber mixtures, wherein the polybutadiene comprises the 1,3-butadiene-derived monomer units and wherein the proportion of a in the entirety of the 1,3-butadiene-derived monomer units present in the polybutadiene is from 10 to 60 mol %, and wherein the sum of the proportions of b and c in the entirety of the 1,3-butadiene-derived monomer units present in the polybutadiene is from 40 to 90 mol %.. ... Evonik Corporation

05/03/18 / #20180118650

Dehydration of alpha-substituted carboxylic acids in the presence of water at high pressures

The present invention describes a process for dehydrating alpha-substituted carboxylic acids in the presence of water at high pressures while avoiding by-products.. . ... Evonik Corporation

04/19/18 / #20180108911

Use of certain polymers as a charge store

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. These secondary batteries are especially notable for high cell voltages, and simple and scalable processing and production methods (for example by means of screen printing).. ... Evonik Corporation

04/12/18 / #20180102541

Use of certain polymers as a charge store

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. The secondary batteries are especially notable for high cell voltages, a small drop in capacity even on undergoing several charging and discharging cycles, and simple and scalable processing and production methods (for example by means of screen printing).. ... Evonik Corporation

04/12/18 / #20180100071

Paint system containing anti-fouling metal oxide and fumed silica

A paint system contains an anti-fouling metal oxide and a fumed silica, wherein the fumed silica has a bet surface area of 150 to 400 m2/g, a tamped density of 100 to 300 g/l and a thickening of less than 500 mpas.. . ... Evonik Corporation

04/12/18 / #20180099251

Method for producing polyimide membranes

The invention concerns polyimide membranes, preferably composed of p84 type 70 or p84 ht, having improved chemical and physical properties, a method of producing same and also their use.. . ... Evonik Corporation

04/05/18 / #20180098384

Apparatus for heating polymeric powders by means of radiation in powder coating methods

An apparatus for heating powder particles, contains a radiation source (1), a housing (2) and a screen (4). The radiation source (1) has its maximum radiative power in the wavelength range of 0.78-2.5 μm. ... Evonik Corporation

04/05/18 / #20180094146

Compatibilizer for universal colorant in solventborne alkyd paints

Solventborne alkyd paint composition containing a universal colorant of organic pigment or inorganic pigment, a solventborne alkyd base paint and a fatty acid amidoamine, where the fatty acid amidoamine is the condensation product of a fatty acid or their corresponding ester or fatty oil and a polyamine, the polyamine is an aliphatic polyamine having an amine functionality of at least 2, and the polyamine contains at least one primary amine group and at least one tertiary amine group.. . ... Evonik Corporation

04/05/18 / #20180094103

Polyamide powder for selective sintering methods

A polyamide powder for powder bed fusion methods is described. The polymer exhibits a solution viscosity to iso 307 of 1.55 to 1.75 and an increase in solution viscosity of 10% to 40%, preferably 20% to 30%, when under a nitrogen atmosphere it is subjected to a temperature 10° c. ... Evonik Corporation

04/05/18 / #20180093952

Hardener composition including 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine

The present invention relates to a process for producing 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine, which can be used as hardener in epoxide applications.. . ... Evonik Corporation

04/05/18 / #20180093925

Polyamide powder for selective sintering methods

A polyamide powder for selective absorbing sintering, sas, or selective inhibition sintering, sis. The polyamide powder has a solution viscosity to iso 307 of 1.8 to 2 and a rise in the solution viscosity of 0% to 25% when it is subjected to a temperature 20° c. ... Evonik Corporation

03/22/18 / #20180080586

Multilayer hollow body having high leaching resistance

A multilayer hollow body has the following layers: i. An inner layer (layer i) containing a moulding composition based on pa612, pa610, pa1010, pa1012 and/or pa1212 and copolymers thereof and mixtures thereof; ii. ... Evonik Corporation

03/22/18 / #20180079882

Production of fine-pored pmma foams using nucleating agents

Fine-cell pmma foams are produced using a production process including nucleators in addition to suitable blowing agents. It was found that, surprisingly, a simple-to-produce stable pmma foam having very fine cells and very good properties can be produced.. ... Evonik Corporation

03/15/18 / #20180072647

Dehydrogenation of lpg or ngl and flexible utilization of the olefins thus obtained

The object of the invention is to specify a process with which both c5 and c9 aldehydes can be produced economically. Here, the process should be able to to be supplied with the lowest possible dependence on raw material suppliers and also should be able to react flexibly to fluctuations in demand with respect to c5 and c9 aldehydes. ... Evonik Corporation

03/08/18 / #20180066078

Production of a pmma foam using cross-linking agents, regulators and blowing agents

. . The present invention relates to novel types of pmma foams and also to the production thereof. The recipes used in the production process include particularly crosslinkers and chain transfer agents as recipe constituents, mostly in low concentrations, in addition to suitable blowing agents. ... Evonik Corporation

03/08/18 / #20180065913

Processes, products, and compositions having tetraalkylguanidine salt of aromatic carboxylic acid

Disclosed are processes, products, and compositions having tetraalkylguanidine salt of aromatic acid. The processes include providing a pre-mix comprising an aromatic carboxylic acid component and contacting a tetraalkylguanidine with the aromatic carboxylic acid component in the pre-mix to form the tetraalkylguanidine salt of aromatic carboxylic acid or producing a catalyst composition by contacting the tetraalkylguanidine with the aromatic carboxylic acid component to form the tetraalkylguanidine salt of aromatic carboxylic acid. ... Evonik Corporation

03/08/18 / #20180065892

Method for producing a molded heat-insulating element

A process for producing an ammonia-treated hydrophilic thermal insulation molding which includes treating a thermal insulation molding containing hydrophilic silica with ammonia by introducing the thermal insulation molding into a chamber and supplying gaseous ammonia until a pressure difference Δp of ≧20 mbar is achieved. A process for producing a thermal insulation molding containing hydrophobic silica which includes treating the ammonia-treated hydrophilic thermal insulation molding with an organosilicon compound.. ... Evonik Corporation

03/01/18 / #20180057473

Method for the epoxidation of propene with hydrogen peroxide

The method for the epoxidation of propene comprises continuously reacting propene with hydrogen peroxide in the presence of a homogeneous epoxidation catalyst in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, withdrawing aqueous phase from the loop reactor and extracting it by liquid-liquid-extraction using propene as extractant to provide an extract comprising propene and propene oxide.. . ... Evonik Corporation

02/15/18 / #20180044520

Tough polyamide moulding material

. . . . A moulding material contains to an extent of at least 50 wt % of the combination of the following constituents a) 80 to 97 parts by mass of a polyamide component containing a1) 70 to 100 parts by wt of pa pacmx (wherein x=8 to 18), and a2) 30 to 0 parts by wt of a linear aliphatic polyamide having on average 8 to 12 carbon atoms in the monomer units, wherein the parts by wt sum to 100, and b) 20 to 3 parts by mass of a core-shell modifier which contains the following: b1) a core which contains 60 to 100 wt % of butadiene units and 0 to 40 wt % of styrene units, wherein the core makes up 60 to 95 wt % of the core-shell modifier; and b2) a shell which contains 80 to 100 wt % of methyl methacrylate units and 0 to 20 wt % of modifying monomer units, wherein the shell makes up 5 to 40 wt % of the core-shell modifier, wherein the parts by mass of a) and b) sum to 100.. . ... Evonik Corporation

02/15/18 / #20180044233

Fibersizing with small amounts of nanomaterials

Nanoparticle-coated fibre material, the coating of which includes between 0.01 and less than 2.0 wt % of nanoparticles based on the dry weight of the coated fibre material and is capable of undergoing further reactions, a process for producing the nanoparticle-coated fibre materials, and also corresponding fibre composite materials.. . ... Evonik Corporation

02/08/18 / #20180037786

Adhesives with low voc and fogging values

. . The invention relates to hotmelt adhesives based on polyesters, having low voc and fogging values. In particular, the invention relates to reactive hotmelt adhesives including polyesters containing at least 50 mole percent, based on the polycarboxylic acid components, of terephthalic acid or a derivative thereof and containing at least 40 mole percent, based on the polyol components, of diols of the formula ho—(ch2)x—oh with x≧6.. ... Evonik Corporation

02/08/18 / #20180036938

Polyamide-based polymer powder, use thereof in a molding method, and molded articles made from said polymer powder

The invention relates to a polymer powder for use in a layer-by-layer method in which areas of each powder layer are selectively fused by introducing electromagnetic energy. Said polymer powder contains: at least one ab-type polyamide produced by polymerizing lactams comprising 10 to 12 carbon atoms in the monomer unit or polycondensing the corresponding ω-amino carboxylic acids comprising 10 to 12 carbon atoms in the monomer unit and at least one aabb-type polyamide produced by polycondensing diamines and dicarboxylic acids, each of which comprises 10 to 14 carbon atoms in the monomer units, the ab-type polyamide containing up to 20 mole % of the aabb comonomer units and the aabb-type polyamide containing up to 20 mole % of the ab monomer units. ... Evonik Corporation

02/01/18 / #20180030648

Carbon fibre fibre-sizing containing nanoparticles

. . A carbon fibre material is coated with nanoparticles, where the coating contains from 0.01 to less than 10% by weight of nanoparticles, based on the dry weight of the coated fibre material, and the coating may optionally be involved in further reactions.. . ... Evonik Corporation

02/01/18 / #20180030320

Adhesives with low voc and fogging values

The invention relates to hotmelt adhesives based on polyesters, having low voc and fogging values. In particular, the invention is directed to a polyester based on polycarboxylic acids and di- or polyols, wherein the polyester including dicarboxylic acids of the formula hooc—(ch2)x-cooh with x>10 and diols of the formula ho—(ch2)y-oh, with the proviso that at least 50 mole percent of the dicarboxylic acids, based on the total amount of polycarboxylic acid components, and at least 50 mole percent of the diols, based on the total amount of di- or polyols, satisfy the condition x+y>18, in hotmelt adhesives. ... Evonik Corporation

02/01/18 / #20180030012

Method for the epoxidation of an olefin with hydrogen peroxide

In the method for the epoxidation of an olefin, the olefin is continuously reacted with hydrogen peroxide in a mixed reactor in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, the reaction is carried out in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase with mixing of the liquid phases, reaction mixture is continuously withdrawn from the mixed reactor and separated into a separated aqueous phase and a separated organic phase, and part of the separated aqueous phase is continuously recycled into the mixed reactor, with the combined hold-up time of aqueous phase in withdrawing, separating phases and recycling aqueous phase being kept at less than 15 minutes.. . ... Evonik Corporation

02/01/18 / #20180030011

Method for the epoxidation of an olefin with hydrogen peroxide

Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, and during the reaction the concentration of hydrogen peroxide in the aqueous liquid phase is maintained at less than 1.0% by weight.. . ... Evonik Corporation

02/01/18 / #20180030010

Method for the epoxidation of an olefin with hydrogen peroxide

Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a homogeneous epoxidation catalyst in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase, using a loop reactor with mixing of the liquid phases. The loop reactor comprises a measuring section in which the liquid phases are temporarily separated, at least one ph electrode is arranged in the measuring section in contact with the separated aqueous phase, a ph of the separated aqueous phase is determined with the ph electrode and the ph is maintained in a predetermined range by adding acid or base to the loop reactor.. ... Evonik Corporation

02/01/18 / #20180029971

Removal of low boilers and reduction of the ammonia content in isophoronediamine by partial condensation

The present invention is directed to a process for fine purification of isophoronediamine from the production of isophoronediamine wherein the crude isophoronediamine i is subjected to a fine purification by means of two vacuum distillation columns, wherein i. In the first vacuum distillation column k i low-boiling by-products still present are removed, and a crude ipda ii is transferred from the bottom of k i into the vacuum distillation column k ii, ii. ... Evonik Corporation

02/01/18 / #20180028994

Dispersing resins

The present invention relates to innovative dispersing resins, to their preparation and to their use for dispersing solids.. . ... Evonik Corporation

01/25/18 / #20180023040

Composition containing peptidase and biosurfactant

. . . . . . . . . . . . The invention relates to compositions comprising at least one protease and at least one biosurfactant, particularly selected from rhamnolipids and sophorolipids. In particular, the present invention is directed to a composition including a) at least one peptidase, b) at least one biosurfactant, and optionally c) at least one anionic surfactant. ... Evonik Corporation

01/25/18 / #20180022762

Process for preparing tris[3-(alkoxysilyl)propyl] isocyanurates

A tris[3-(alkoxysilyl)propyl] isocyanurate from the group of tris[3-(trialkoxysilyl)propyl] isocyanurate, tris[3-(alkyldialkoxysilyl)propyl] isocyanurate and tris[3-(dialkylalkoxysilyl)propyl] isocyanurate is prepared by hydrosilylation, by a) initially charging a mixture of at least one hydroalkoxysilane from the group of hydrotrialkoxysilane, hydroalkyldialkoxysilane, hydrodialkylalkoxysilane [called h-silane(s) for short] and a pt catalyst, b) heating the mixture to a temperature of 40 to 170° c., c) then adding or metering in 1,3,5-triallyl-1,3,5-triazine-2,4,6(1h,3h,5h)-trione, at least one carboxylic acid and at least one alcohol as cocatalyst while mixing, and d) leaving the mixture to react and then working up the product mixture thus obtained.. . ... Evonik Corporation

01/18/18 / #20180016525

Composition containing rhamnolipid and siloxane

The invention provides compositions comprising at least one rhamnolipid and at least one siloxane, characterized in that the weight ratio of rhamnolipid to siloxane is from 5,000,000:1 to 100:1, preferably from 500,000:1 to 1000:1, particularly preferably from 25,000:1 to 2500:1. In another embodiment, the invention provides compositions include rhamnolipid in an amount of from 0.5% by weight to 70% by weight, preferably from 2% by weight to 60% by weight, particularly preferably from 3% by weight to 50% by weight, where the percentages by weight refer to the total composition.. ... Evonik Corporation

01/18/18 / #20180016406

Production of porous polyurethane layers

The use of particular silicon-containing compounds in the production of porous polyurethane layers for improving the flow properties of the reaction mixture which is reacting to form the polyurethane layer and/or for optimizing the cells of the resulting polyurethane layer, preferably for homogenizing the cell structure over the entire resulting polyurethane layer, especially in the context of artificial leather or foam film production, is described. The silicon-containing compounds have the following formula:. ... Evonik Corporation

01/18/18 / #20180016392

Modified alkoxylation products having at least one non-terminal alkoxy silyl group, with increased storage stability and improved elongation, and the polymers produced using said products

The present invention provides specific alkoxylation products, a process for preparing them, compositions comprising these alkoxylation products, and their use. In particular the present invention provides an alkoxylation product comprising at least one non-terminal alkoxysilyl group, formed from monomers of at least one alkylene oxide and at least one epoxide bearing alkoxysilyl groups, wherein at least 30% of all the free oh groups on the chain end of the alkoxylation product have been converted to acetoacetate groups.. ... Evonik Corporation

01/11/18 / #20180010007

Universal pigment preparation

. . A universal pigment preparation including a flocculation-stabilizing medium including (a1) reaction products of di- or polycarboxylic acids or hydroxycarboxylic acids with di- or polyols, and (a2) reaction products of alkylene oxides with alkoxylatable compounds, and at least one pigment. Paints, varnishes, printing inks, coating materials, floor coatings, potting compounds and filling compounds may be made using the universal pigment preparation.. ... Evonik Corporation

01/11/18 / #20180009954

Oem textile finishing compositions

Crosslinked aminosiloxanes obtainable by reaction of identical or different aminosiloxanes with identical or different epoxide components which are water-soluble hydrocarbons, the hydrocarbons comprising oxygen as well as carbon, and optionally further elements selected from nitrogen, sulphur and phosphorus, the hydrocarbon having on average more than one terminal epoxy group, the epoxy group being a carbooxirane radical, and, further, not more than 50% of all the amino groups having undergone reaction with an epoxide group.. . ... Evonik Corporation

01/11/18 / #20180009752

Process for preparing an n-methyl-substituted triacetonamine compound

An n-methyl-substituted triacetonamine compound can be produced by reacting at least one triacetonamine compound with formaldehyde under reductive conditions.. . ... Evonik Corporation

01/11/18 / #20180009734

Synthesis of triacetonediamine compounds by reductive amination proceeding from triacetonediamine and derivatives thereof

An n-substituted triacetonediamine compound is produced by reacting 4-amino-2,2,6,6-tetramethylpiperidine or a derivative thereof with a carbonyl compound in a reductive amination.. . ... Evonik Corporation

01/11/18 / #20180009726

Production of at least 1-hexene and octene from ethene

The invention is concerned with the production of 1-hexene and octenes from ethene. 1-butene is optionally also to be produced. ... Evonik Corporation

01/04/18 / #20180001516

Process and device for the production of a fibre-composite material

Very good impregnation quality is achieved by a process for production of a fiber-composite material, with introducing a fiber layer by a spreader device and thus spreading to a width greater than that of the final product, at least by a factor of 1.2, where the extent of spreading of the fiber layer is such that its average thickness is 1 to 50 times the filament diameter; applying a melt by at least one applicator nozzle to the spread material; by virtue of cross-section-narrowing, the mould brings the width of the wetted fiber layer at least to the cross section with which the product leaves the take-off die; a radius then deflects the wetted fibers by an angle of 5 to 60°; a relaxation zone renders the fiber distribution more uniform to give a uniform height; achieving the first shaping by a take-off die at the end of the mould.. . ... Evonik Corporation

01/04/18 / #20180001307

Gold-based catalyst for the oxidative esterification of aldehydes to obtain carboxylic esters

Catalysts for oxidative esterification can be used, for example, fro converting (meth)acrolein to methyl (meth)acrylate. The catalysts are especially notable for high mechanical and chemical stability even over very long time periods, including activity and/or selectivity relatively in continuous operation in media having even a small water content.. ... Evonik Corporation

12/28/17 / #20170369631

Alkoxysilane- and allophanate-functionalized coating materials

. . . . . . An alkoxysilane-functionalized and allophanate-functionalized coating material including a) a binder component of 10-99 wt % of at least one reaction product of i. And ii. ... Evonik Corporation

12/28/17 / #20170369627

Alkoxysilane-functionalized and allophanate-functionalized urethanes

The present invention relates to alkoxysilane-functionalized and allophanate-functionalized urethanes, methods for the preparation thereof, coating compositions comprising these and to the use thereof.. . ... Evonik Corporation

12/28/17 / #20170369619

Radiation-curable coating compounds consisting of a plurality of components, and the use of same in release-coated substrates

A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.. . ... Evonik Corporation

12/28/17 / #20170369615

Method for the preparation of copolymers of alkyl methacrylates and maleic anhydride

A method for the preparation of a sulfur-free copolymer proceeds by solution polymerization in the presence of a radical initiator, wherein the copolymer contains at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 3000 to 9000 g/mol.. . ... Evonik Corporation

12/28/17 / #20170369372

Reinforced building block made of autoclaved aerated concrete (aac)

The present invention is directed to a reinforced building block made of autoclaved aerated concrete (aac) comprising rebars formed essentially from a) at least one fibrous carrier and b) and a hardened composition formed from b1) at least one epoxy compound and b2) at least one diamine and/or polyamine in a stoichiometric ratio of the epoxy compound b1) to the diamine and/or polyamine component b2) of 0.8:1 to 2:1, as matrix material, and c) optionally further auxiliaries and additives and to methods of production thereof. . ... Evonik Corporation

12/28/17 / #20170368497

Process for separation of gases with reduced maintenance costs

The invention relates to a specific process and apparatus for separation of gas mixtures with reduced maintenance costs.. . ... Evonik Corporation

12/28/17 / #20170367394

Process for increasing the stability of a composition comprising polyunsaturated omega-6 fatty acids

A processes for increasing the stability of a composition containing polyunsaturated an omega-6 fatty acid against oxidation proceeds by (i) providing a starting composition containing at least one polyunsaturated omega-6 fatty acid component; (ii) providing a lysine composition; (iii) admixing an aqueous, an aqueous-alcoholic or an alcoholic solution of starting composition and lysine composition, and subjecting a resulting admixture to spray drying conditions subsequently, thus forming a solid product composition containing at least one salt of a cation derived from lysine with an anion derived from the polyunsaturated omega-6 fatty acid; the product composition exhibiting a solvent content sc selected from the following; sc<5 wt %, sc<3 wt %, sc<1 wt %, or <0.5 wt %.. . ... Evonik Corporation

12/21/17 / #20170365733

Method for producing doped polycrystalline semiconductor layers

. . The present invention relates to a method for producing highly doped polycrystalline semiconductor layers on a semiconductor substrate, wherein a first si precursor composition comprising at least one first dopant is applied to one or more regions of the surface of the semiconductor substrate; optionally a second si precursor composition comprising at least one second dopant is applied to one or more other regions of the surface of the semiconductor substrate, where the first dopant is an n-type dopant and the second dopant is a p-type dopant or vice versa; and the coated regions of the surface of the semiconductor substrate are each converted, so as to form polycrystalline silicon from the si precursor. The invention further relates to the semiconductor obtainable by the method and to the use thereof, especially in the production of solar cells.. ... Evonik Corporation

12/21/17 / #20170362360

Method for the preparation of copolymers of alkyl methacrylates and maleic anhydride

A method for the preparation of a copolymer containing at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 4000 to 18000 g/mol proceeds by solution polymerization in the presence of a radical initiator.. . ... Evonik Corporation

12/21/17 / #20170361531

Use of core-shell(-shell) particles in the binder jetting process

A three-dimensional object is formed by 3d printing, especially by a binder jetting method, in which particulate material in a powder bed is bonded by a printed adhesive. The particulate materials may be inorganic materials, for example sand or a metal powder, or particulate polymeric materials, for example polymethacrylates or polyamides. ... Evonik Corporation

12/21/17 / #20170360072

Process for increasing the stability of a composition comprising polyunsaturated omega-3 fatty acids

A process for increasing the stability of a composition containing a polyunsaturated omega-3 fatty acid against oxidation proceeds by (i) providing a starting composition containing at least one polyunsaturated omega-3 fatty acid component; (ii) providing a lysine composition; (iii) admixing an aqueous, an aqueous-alcoholic or an alcoholic solution of starting composition and lysine composition, and subjecting resulting admixture to spray drying conditions subsequently, thus forming a solid product composition containing at least one salt of a cation derived from lysine with an anion derived from a polyunsaturated omega-3 fatty acid; the product composition exhibiting a solvent content sc selected from the following: sc<5 wt %, sc<3 wt %, sc<1 wt %, or sc<0.5 wt %.. . ... Evonik Corporation

12/14/17 / #20170355814

Isocyanate-free synthesis of carbonate-modified polymers

. . . . . . . . . . The present invention relates to an isocyanate-free and preferably solvent-free process for preparing polymers containing five-membered cyclic carbonate groups. In particular, the present invention is directed to a process for preparing polymers bearing cyclic carbonate groups by reacting carboxyl-bearing polymers selected from the group including polyesters based on di- or polyols and di- or polycarboxylic acids or derivatives thereof or poly(meth)acrylates, with hydroxyl-functionalized five-membered cyclic carbonates, without addition of isocyanates.. ... Evonik Corporation

12/14/17 / #20170355810

Epoxy resin composition comprising 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine as hardener

An epoxy resin composition including a) at least one epoxy compound, and b) a hardener composition including b1) from 0.1%-100% by weight of 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine, and b2) from 99.9%-0% by weight of at least one further diamine and/or polyamine, where the stoichiometric ratio of the epoxy groups of a) and the number of active hydrogen atoms of the functional groups of b) varies from 1:2 to 2:1.. . ... Evonik Corporation

12/14/17 / #20170355809

Epoxy resin composition comprising 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine (am-cpda) as hardener

An epoxy resin composition including a) at least one epoxy compound and b) a hardener composition including b1) 0.1%-100% by weight of 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine, and b2) 99.9%-0% by weight of at least one further diamine and/or polyamine, where the stoichiometric ratio of the epoxy groups of a) and the number of active hydrogen atoms of the functional groups of b) varies from 1:2 to 2:1.. . ... Evonik Corporation

12/14/17 / #20170355808

Epoxy resin composition comprising 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine as hardener

An epoxy resin composition including a) at least one epoxy compound, and b) a hardener composition including b1) from 0.1%-100% by weight of 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine, and b2) from 99.9%-0% by weight of at least one further diamine and/or polyamine, where the stoichiometric ratio of the epoxy groups of a) and the number of active hydrogen atoms of the functional groups of b) varies from 1:2 to 2:1.. . ... Evonik Corporation

12/14/17 / #20170355681

Process for purifying an ionic liquid

The invention relates to a process for purifying an ionic liquid comprising dialkylimidazolium ions by means of stripping, wherein water vapour is used at a particular temperature. The process according to the invention is characterized in that the decomposition of the ionic liquid is minimized during the procedure of the process.. ... Evonik Corporation

12/14/17 / #20170355651

Oligomerization of ethene in supercritical mode

The invention is concerned with the oligomerization of supercritical ethene. An essential aspect of the invention is that of mixing ethene with an inert medium and setting the conditions in the reaction such that both ethene and inert medium are supercritical. ... Evonik Corporation

12/14/17 / #20170354924

Process for dehumidifying moist gas mixtures

The invention relates to a process for dehumidifying a moist gas mixture and to the absorption medium used in the process. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention.. ... Evonik Corporation

12/14/17 / #20170354923

Process for dehumidifying moist gas mixtures

The invention relates to a process for dehumidifying a moist gas mixture. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention.. ... Evonik Corporation

12/14/17 / #20170354922

Process and absorbent for dehumidifying moist gas mixtures

The invention relates to a process for dehumidifying a moist gas mixture in which the moist gas mixtures are brought into contact with an absorbent comprising dialkylimidazolium salts and trialkyl phosphate. In addition, the invention also relates to an absorption heat pump comprising the absorbent according to the invention and to the absorbent according to the invention itself.. ... Evonik Corporation

12/14/17 / #20170354921

Process for dehumidifying moist gas mixtures

The invention relates to a process for dehumidifying a moist gas mixture. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention. ... Evonik Corporation

12/07/17 / #20170349693

Innovative hydrophilic polyisocyanates with improved storage stability

The invention relates to innovative, water-dispersible, hydrophilic polyisocyanates and polyisocyanate mixtures, to a process for preparing them, to compositions comprising the hydrophilic polyisocyanates of the invention, and to their use as a starting component in the production of polyurethane plastics, more particularly as crosslinkers for water-soluble or water-dispersible film-forming, adhesives or sealant binders or binder components having groups which are reactive towards isocyanate groups.. . ... Evonik Corporation

12/07/17 / #20170349520

Singly protected 2,2' -dihydroxybiaryls

Novel singly protected 2,2′-dihydroxybiaryls, electrochemical process for preparation of singly protected 2,2′-dihydroxybiaryls.. . ... Evonik Corporation

11/30/17 / #20170342197

One component epoxy curing agents comprising hydroxyalkylamino cycloalkanes

Liquid epoxy curing agents that have improved latency over conventional liquid curing agents while retaining the physical properties of the cured material are disclosed. These liquid curing agents can be used for curing epoxy resins, or in combination with dicyandiamide (dicy) based curing agents in order to accelerate dicy curing.. ... Evonik Corporation

11/30/17 / #20170342095

Organofunctional silicon particles, process for the production thereof and use thereof

Organofunctional silicon particles are covalently functionalized on their surface with at least one organic compound, for example a plurality of —o—(c1-c48)-alkyl compounds. The functionalization of the surface of the silicon particles makes it possible to adjust the properties of fluids in terms of their profile of properties by addition of the modified silicon particles. ... Evonik Corporation

11/30/17 / #20170340683

Bacillus subtilis strain with probiotic activity

The current invention concerns a new b. Subtilis strain with strong inhibition of c. ... Evonik Corporation

11/23/17 / #20170338487

Method for producing a cathode material and special cathode material

A pulverulent cathode material contains at least one mixed oxide containing the metal components li, at least one further metal component selected from the group consisting of mn, ni and co. The pulverulent cathode material is produced by a process in which an ammonia-containing aerosol containing metal compound of the metal components is converted in a high-temperature zone of a reaction space and then the solids are removed.. ... Evonik Corporation

11/23/17 / #20170335238

Concentrated, low-viscosity rhamnolipid compositions

A rhamnolipid composition including 30% by weight to 70% by weight, of at least one rhamnolipid and 30% by weight to 70% by weight of water, where the percentages by weight refer to the total composition, wherein the ph of the composition at 25° c. Is from 5.5 to 7.0. ... Evonik Corporation

11/23/17 / #20170335141

Directly adhering, transparent heat-sealable binder for the coating and sealing of transparent plastics foils

A transparent, heat-sealable coating for transparent pet packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.. ... Evonik Corporation

11/23/17 / #20170334822

Production of n-pentanal from low-butene feedstock mixtures

The invention is concerned with the issue of how to produce n-pentanal by hydroformylation from feedstock mixtures comprising a small proportion of n-butene and a large proportion of n-butane. Specifically, solutions for further optimizing established processes for hydroformylation of such low-butene mixtures in terms of material utilization are sought. ... Evonik Corporation

11/23/17 / #20170334155

Production of a plurality of different fiber composite components for high volumes in a continuous process

The present invention relates to a novel process for the production of novel fibre-reinforced profile materials filled with a rigid foam core, especially a pmi foam core. In particular, the present invention relates to a novel process which, in various versions, provides a particularly high throughput and allows a very wide range of shaping options. ... Evonik Corporation

11/23/17 / #20170333361

Nanoparticle

The invention refers to a nanoparticle with a diameter which is the maximum in the nanoparticle size distribution, in the range of 10-300 nm, comprising a) a calcium phosphate nanoparticle core a), b) an active ingredient coating b) on the calcium phosphate nanoparticle core a), c) a lactic acid polymer coating c) on the active ingredient coating b), d) a cationic polymer coating d) on the lactic acid polymer coating c) selected from the group of polyethylene-imines, chitosan and human lactoferrin-derived peptides with a length of 14 to 30 amino acids.. . ... Evonik Corporation

11/16/17 / #20170327422

Use of aqueous emulsions based on propylethoxysilane oligomers as an additive in hydraulically setting cement compositions for reduction of shrinkage characteristics

An aqueous oil-in-water emulsion containing a propylethoxysilane oligomer mixture or a mixture of a propylethoxysilane oligomer mixture and octyltriethoxysilane in a weight ratio of 3:1 to 1:3, at least one emulsifier or an emulsifier system, at least one content of a 2-aminoethanol and water is used as an addition in the production of hydraulically setting cement mixtures such as mortar, screed or concrete for reduction of the shrinkage characteristics.. . ... Evonik Corporation

11/09/17 / #20170318763

Bioreactor

A temporary immersion bioreactor (10) for in vitro production of differentiated plant biomass including a growth chamber (12) having one or more transparent side walls (14) and a mesh bottom (16), the mesh bottom (16) defining a plurality of pores (18) to receive plant material. The bioreactor (10) includes a flexible bag (20) formed from a transparent material, the flexible bag (20) having a sealable opening and being dimensioned to receive the growth chamber (12) together with a liquid medium (22). ... Evonik Corporation

10/26/17 / #20170306365

Process for producing a pufa-containing feedstuff by extruding a pufa-containing biomass

. . In accordance with the invention, it was found, surprisingly, that a polyunsaturated fatty acids (pufas)-comprising biomass with other feedstuff components can be extruded at a low energy input of 12-28 wh/kg to give an extrudate with a very high oil load capacity.. . ... Evonik Corporation

10/26/17 / #20170306264

Biosurfactant-containing formulation

The present invention further relates to a biosurfactant-containing formulation including a) at least one biosurfactant, and b) at least one additional surfactant selected from the group of betaines, alkoxylated fatty alcohol sulphates and alkylamine oxides, wherein the biosurfactant-containing formulation may be used on hard surfaces.. . ... Evonik Corporation

10/26/17 / #20170305846

2,2' -diaminobiaryls having a phthaloyl group or succinoyl group

Novel 2,2′-diaminobiaryls having two secondary amines and an electrochemical process for preparation thereof.. . ... Evonik Corporation

10/26/17 / #20170305830

Optimized process for preparing methacrylic acid

The present invention relates to an optimized process for preparing methacrylic acid, wherein methacrolein is prepared in a first stage from propionaldehyde and formaldehyde by means of a mannich reaction and oxidized in a second stage to methacrylic acid. More particularly, the present invention relates to the reduction in the amounts of catalyst to be used in the first stage, especially to the reduction in the amounts of acid to be used here, by virtue of the additional installation of recycling streams suitable for the purpose.. ... Evonik Corporation

10/26/17 / #20170305784

Process for producing structured coatings

The present invention, relates, to a process, for producing structured coatings, in which a coating composition comprising at least one inorganic binder, at least one oxide pigment which, after addition of a mixture consisting of 15 ml of 1 m oxalic acid and 15 ml of 20% aqueous hydrochloric acid based on 1 g of substance, under standard conditions, leads to a temperature rise of at least 4° c., and at least one solvent is applied to a substrate, the resulting coating composition film is partially coated with a photoresist and the substrate coated with the coating composition and the photoresist is treated with an acid, to the structured layers obtainable by the process and to the use thereof.. . ... Evonik Corporation

10/26/17 / #20170304211

Pharmaceutical or nutraceutical composition with resistance against the influence of ethanol

A pharmaceutical or nutraceutical composition, contains a) a core a), containing a pharmaceutical or a nutraceutical active ingredient and b) a coating layer b), containing a mixture of 80 to 96% by weight of a water-insoluble (meth)acrylate polymer and 4 to 20% by weight of guar gum, wherein the water-insoluble (meth)acrylate polymer contains polymerized units of more than 95 and up to 100% by weight c1-c4-alkyl esters of acrylic acid or of methacrylic acid and less than 5% by weight of acrylic acid or methacrylic acid.. . ... Evonik Corporation

10/26/17 / #20170303561

Method for producing biomass which has a high exopolysaccharide content

According to the invention, it was found that culturing of cells of the taxon labyrinthulomycetes in a high content of sulphate makes it possible to obtain a biomass having a high eps content, which biomass can in addition be advantageously further processed into a feedstuff.. . ... Evonik Corporation

10/12/17 / #20170291913

Process for preparing a composition containing 2-propylheptyl silicate

A composition containing 2-propylheptyl silicate is obtained by heating ethyl silicate with an amount of 2-propylheptanol used in excess in the presence of titanium tetrabutoxide as catalyst to a temperature of not more than 220° c. While mixing, allowing them to react and, after the reaction, removing ethanol and excess 2-propylheptanol from the reaction mixture by distillation and obtaining the product, to obtain the composition comprising 2-propylheptyl silicate.. ... Evonik Corporation

10/12/17 / #20170291871

2,2' -diaminobiaryls having one primary and one secondary amine

Novel 2,2′-diaminobiaryls having one primary and one secondary amine and an electrochemical process for preparation thereof.. . ... Evonik Corporation

10/12/17 / #20170290356

Method for raising animals

According to the invention, it was found that a feedstuff containing an aurantiochytrium biomass brings about a significant increase in growth in fish.. . ... Evonik Corporation

10/05/17 / #20170283961

2,2' -diaminobiaryls having two secondary amines

Novel 2,2′-diaminobiaryls having two secondary amines and an electrochemical process for preparation thereof.. . ... Evonik Corporation

10/05/17 / #20170283554

Process for the preparation of eugenol polyethers that can be hydrosilylated and eugenol polyethersiloxanes and use thereof

The present invention relates to a process for producing hydrosilylatable, eugenol-based polyethers, to the conversion thereof into polyether siloxanes and also to the products that may be produced by this process and to the use of said products as surfactants.. . ... Evonik Corporation

10/05/17 / #20170283364

Method for preparing alpha-hydroxycarboxylic acid esters in which ammonia is recycled

The present invention relates to a process for preparing alpha-hydroxycarboxylic esters proceeding from hydrogen cyanide, wherein the ammonia formed in the step of alcoholysis of the corresponding alpha-hydroxycarboxamide is recycled into a hydrogen cyanide preparation process after a purification step.. . ... Evonik Corporation

09/28/17 / #20170275316

Bisphosphites having an unsymmetric outer biphenol unit

. . Bisphosphites having at least one unsymmetric outer biphenol unit are useful for the hydroformylation of an olefin.. . ... Evonik Corporation

09/28/17 / #20170275227

Optimized method for producing methacrolein

The present invention relates to an optimized process for the preparation of methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for the preparation of methacrylic acid, methyl methacrylate or even active ingredients, fragrances or flavourings. ... Evonik Corporation

09/28/17 / #20170275166

Method for producing metal oxides by means of spray pyrolysis

A process for producing a metal oxide powder proceeds by spray pyrolysis, in which a mixture comprising ammonia and an aerosol which is obtained by atomizing a solution containing a metal compound by means of an atomization gas is introduced into a high-temperature zone of a reaction space and reacted in an oxygen-containing atmosphere therein and the solids are subsequently separated off.. . ... Evonik Corporation

09/28/17 / #20170274591

Process for melting/sintering powder particles for layer-by-layer production of three-dimensional objects

A process for melting/sintering powder particles for layer-by-layer production of three-dimensional objects is performed by a)applying a layer of a powder material solidifiable under the action of electromagnetic radiation, b) heating the powder material to not more than 10 k below the melting point according to din 53765 by a radiation from a heat-radiating element whose maximum radiation intensity is at a wavelength of 5000 nm or at longer wavelengths, c) selective melting/sintering of at least a region of the powder material which corresponds to the cross section of the three-dimensional object, d)repeating steps a) to c) until the three-dimensional object is obtained.. . ... Evonik Corporation

09/28/17 / #20170274335

Dispersants

The present invention relates to dispersants based on polyamines or polyimines containing side chains based on two or more poly(oxy-c1-6-alkylenecarbonyl) compounds (a) and side chains based on alkyl acid (b).. . ... Evonik Corporation

09/21/17 / #20170268221

Molded heat insulation member comprising capillary-active elements

Thermal insulation body comprising a thermally insulating core having holes filled with a capillary-active material, wherein the thermally insulating core is capillary-inactive and the capillary-active material in the holes comprises capillary-active wicks.. . ... Evonik Corporation

09/14/17 / #20170260552

Method of producing organic compounds

. . There is provided a mixed culture of a first and second microorganism in an aqueous medium, wherein the first microorganism is an acetogenic microorganism capable of converting a carbon source comprising co and/or co2 to acetate and/or ethanol, the second microorganism is a non-acetogenic microorganism capable of metabolising acetate and/or ethanol and the first and second microorganisms are in a homogenous mixture and wherein the aqueous medium comprises oxygen. There is also provided a method of producing substituted and/or unsubstituted organic compounds using the mixed culture.. ... Evonik Corporation

09/14/17 / #20170260433

Directly attaching, halogen-free, fast-drying, heat-sealing binder for sealing polyester films to polystyrene, polyester or pvc

The present invention comprises a single-component binder for heat-sealing applications which can be used for the sealing of polyester foils, in particular of polyethylene terephthalate foils (pet foils) with respect to containers made of polystyrene, of pvc, and of polyester. These polyesters can in particular be polyethylene terephthalate (pet) or polylactic acid (pla). ... Evonik Corporation

09/14/17 / #20170260322

Ketimines of benzylated polyamines as curing agents

Ketimines of benzylated polyamines and mek are disclosed. The ketimines can be used as an epoxy curing agent and impart improved potlife, and enhanced blush and chemical resistance of cured epoxy coatings.. ... Evonik Corporation

08/31/17 / #20170247501

Epoxy curing agents, compositions and uses thereof

The present invention relates to epoxy curing agents which are obtained from the reaction of a polyalkylene polyether modified polyepoxide resin and a polyamine component. They polyamine component is a reaction product of a polyethylene polyamine having 3 to 10 nitrogen atoms, for example, diethylenetriamine (deta), and at least one aldehyde having 1 to 8 carbon atoms, for example, formaldehyde. ... Evonik Corporation

08/31/17 / #20170247495

Low emissions polyurethane foam made with isocyanate reactive amine crystals

Tertiary amine catalysts having isocyanate reactive groups capable of forming thermally stable covalent bonds able to withstand temperatures from 120° c. And higher and up to 250° c. ... Evonik Corporation

08/24/17 / #20170240692

Modifier for curable compositions comprising benzyl alcohol alkoxylates

. . The present invention relates to a modifier comprising benzyl alcohol-based alkoxylates for curable compositions comprising at least one epoxy resin and a hardener, which are obtained by reacting benzyl alcohol with alkylene oxides, the benzyl alcohol-based alkoxylates having at least one ethoxy fragment.. . ... Evonik Corporation

08/17/17 / #20170233622

Two-component polyurethane hot-melt adhesive with high initial and final strength

. . . . A two-pack polyurethane adhesive for semi-structural and structural adhesive bonds which are applied in melt form and have a high handling strength wherein the two-pack polyurethane adhesive includes a first pack a containing at least one polyester a1 which is solid at room temperature and at least one polyol a2 having a hydroxyl group functionality greater than 2.0, and a second pack b containing polyurethane prepolymers having isocyanate groups.. . ... Evonik Corporation

08/17/17 / #20170233416

Quaternary amino alcohol functional organosilicon compounds, composition containing the latter and their production and use

The invention relates to novel quaternary amino alcohol functional organosilicon compounds, aqueous compositions containing the latter, and a method for their production, in particular in the form of oligomers and polymers which can be present in the partially or fully hydrolyzed form and are in particular water-soluble. The compositions comprise only an extremely small portion of vocs. ... Evonik Corporation

08/17/17 / #20170233252

Carbon aerogels, process for their preparation and their use

The invention relates to carbon aerogels with particle sizes less than 1 μm. The carbon aerogels are prepared by (a)reacting a mono- and/or polyhydroxybenzene, an aldehyde and a catalyst in a reactor at a reaction temperature t in the range from 75-200° c. ... Evonik Corporation

08/10/17 / #20170226370

Reactive resin sealing for low-contaminant cold plastic markings

. . The present invention encompasses a novel soil-repellent reactive resin seal for markings or coating of areas of ground or trafficways, for example roads, based on cold plastic. Compared to established prior art systems, this sealing leads to reduced adhesion of soil, especially in hot and/or dry, dusty environments. ... Evonik Corporation

08/10/17 / #20170226300

Efficient production of composite semifinished products and components in a wet pressing method using hydroxy functionalized (meth)acrylates which are duroplastically crosslinked using isocyanates or uretdiones

The invention relates to a process for producing semi-finished composites and composite components. For production of the semi-finished products or components, (meth)acrylate monomers, (meth)acrylate polymers, polyfunctionalized (meth)acrylates, hydroxy-functionalized (meth)acrylate monomers and/or hydroxy-functionalized (meth)acrylate polymers are mixed with di- or polyisocyanates or with uretdione materials. ... Evonik Corporation

08/10/17 / #20170226285

Alkoxysilyl-containing adhesive sealants having improved tear propagation resistance

Specific alkoxysily-modified polymers bearing alkoxysilyl groups distributed randomly or in block fashion along the polyether chain, and not just located at the chain termini, a process for preparing these alkoxysilyl-modified polymers, and compositions comprising these alkoxysilyl-modified polymers are provided.. . ... Evonik Corporation

08/10/17 / #20170226044

Process for producing trimethylhexamethylenediamine

Trimethylhexamethylenediamine is produced by hydrogenating a trimethylhexamethylenedinitrile-comprising mixture in the presence of at least ammonia and hydrogen and a catalyst in the presence or absence of solvent, wherein the catalyst has the following properties: i. After activation the catalyst in its entirety has the following composition in weight percent (wt %), wherein the proportions add up to 100 wt %, based on the metals present: cobalt: 55 to 95 wt %, aluminum: 5 to 45 wt %, chromium: 0 to 3 wt %, and nickel: 0 to 7 wt %, and ii. ... Evonik Corporation

08/03/17 / #20170218494

Plasma coating of thermoelectric active material with nickel and tin

The invention relates to a method for producing a thermoelement for a thermoelectric component, in which method: with the aid of a plasma flame, a diffusion barrier made of nickel is applied to a thermoelectric active material; or, with the aid of a plasma flame, a contact-facilitating layer made of tin is applied to a diffusion barrier made of nickel. The invention also relates to a thermoelectric component comprising thermoelements which are produced correspondingly. ... Evonik Corporation

08/03/17 / #20170218295

Hydraulic fluids in plastic injection molding processes

The present invention relates to the use of hydraulic fluids in plastic injection molding processes. Thereby it was surprisingly found that the use of hydraulic fluids with the right combination of physical parameters like the viscosity grade, the viscosity index, the density and the dispersancy allows for significant energy savings in plastic injection molding processes (pim). ... Evonik Corporation

08/03/17 / #20170218149

Kit for producing composite semi-finished products comprising reversibly crosslinked polymer emulsions

The invention concerns specifically emulsion polymers which are intraparticulately crosslinked via a hetero-diels-alder (hda) mechanism. The crosslinked polymers can then be wholly or partly decrosslinked by thermal processing, for example in the form of a composite matrix, via a retro-diels-alder or retro-hetero-diels-alder reaction and interparticulately recrosslinked on cooling. ... Evonik Corporation

08/03/17 / #20170218120

Polyglycerol alkoxylate esters and preparation and use thereof

The invention provides polyglycerol alkoxylate esters and for the preparation and use thereof.. . ... Evonik Corporation

07/27/17 / #20170210763

Process for preparing a composition containing 2-ethylhexyl silicate

A composition containing 2-ethylhexyl silicate, is produced by heating a reaction mixture of ethyl silicate with an excess amount of 2-ethylhexanol in the presence of titanium tetrabutoxide as catalyst to a temperature below the boiling point of 2-ethylhexanol while mixing, allowing the reaction mixture to react and, after the reaction, removing ethanol and excess 2-ethylhexanol from the reaction mixture by distillation and obtaining the composition containing 2-ethylhexyl silicate.. . ... Evonik Corporation

07/27/17 / #20170210718

Process for the epoxidation of an olefin

In a process for the epoxidation of an olefin, where a mixture comprising olefin, hydrogen peroxide, water and methanol with a weight ratio of water to methanol of less than 1 is passed through a catalyst fixed bed comprising a shaped titanium silicalite catalyst, catalyst breakage is reduced by conditioning the dry catalyst with at least one conditioning liquid comprising water and from 25 to 45% by weight methanol.. . ... Evonik Corporation

07/27/17 / #20170210631

Apparatus for the preparation of silanes

The invention relates to a process for preparing dimeric and/or trimeric silanes by conversion of monosilane in a plasma and to a plant for performance of the process.. . ... Evonik Corporation

07/20/17 / #20170204437

Process for producing pentanoic acid and heptanoic acid from ethanol and propionic acid

The present invention relates to a method of producing valeric acid, heptanoic acid, esters and/or salts thereof from a carbon source, the method comprising a step of contacting at least one microorganism with the carbon source in an aqueous medium, wherein the carbon source is ethanol and propionic acid and the concentration of propionic acid is about ≦10 g/l.. . ... Evonik Corporation

07/20/17 / #20170202770

Composition comprising polyglycerol esters and hydroxyalkyl-modified guar

The invention relates to compositions comprising polyglycerol esters and hydroxyalkyl-modified guar.. . ... Evonik Corporation

07/13/17 / #20170198099

Composition containing platinum

The invention provides for a composition comprising elemental platinum and/or at least one platinum-containing compound, where said platinum has a positive oxidation state, and one or more organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, wherein at least one of said compounds comprises at least one olefinic unsaturation, characterized in that said composition comprises a proportion of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms of from 50.0 to 99.9 wt % and a proportion of the sum of elemental platinum and platinum-containing compounds of from 0.1 to 50.0 wt % in each case based on the composition, with the proviso that the proportions of organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms and of elemental platinum and platinum-containing compounds sum to at least 90 wt % based on the composition and the proviso that the olefinic unsaturation content is at least 0.1 g of iodine/100 g of the organic compounds comprising carbon atoms, hydrogen atoms and at least two oxygen atoms, corresponding to at least 0.004 meq/g, for a process for preparing said composition and for the use thereof.. . ... Evonik Corporation

07/13/17 / #20170197391

Three-layer uv protective film for decorative laminated sheets (hpl)

The present invention relates to novel films for application on materials as protective film in respect of weathering effects. In particular, the present invention relates to a novel film composite which has at least three layers and which features particularly good adhesion on the substrate and particularly good optical properties. ... Evonik Corporation

06/22/17 / #20170174956

Acrylate-terminated urethane polybutadienes from low-monomer 1:1 monoadducts from reactive olefinic compounds and diisocyanates and hydroxy-terminated polybutadienes for liquid optically clear adhesives (locas)

. . . . The present invention relates to an optical clear resin and a method for producing a liquid optical clear photo-curable adhesive.. . ... Evonik Corporation

06/22/17 / #20170174819

Acrylate-terminated urethane polybutadienes formed from low-monomer 1:1 monoadducts of reactive olefinic compounds and diisocyanates and hydroxy-terminated polybutadienes

Acrylate-terminated urethane polybutadienes are obtained by reaction of low-monomer 1:1 monoadducts of reactive olefinic compounds and diisocyanates with hydroxy-terminated polybutadienes.. . ... Evonik Corporation

06/22/17 / #20170174817

Nitrogen-containing compounds suitable for use in the production of polyurethanes

The present invention relates to the use of nitrogenous compounds of formula (i) and/or corresponding quaternized and/or protonated compounds for production of polyurethanes, to compositions comprising said compounds and also to polyurethane systems, in particular polyurethane foams, obtained using said compounds.. . ... Evonik Corporation

06/22/17 / #20170174715

Bidentate diphosphoramidites with a piperazine group as ligands for hydroformylation

The invention relates to rh, ru, co and ir complexes comprising bidentate diphosphoramidites as ligands and to the use thereof as catalysts for the hydroformylation of olefins. The invention also relates to a process for preparing an aldehyde from an olefin using the complexes or ligands mentioned.. ... Evonik Corporation








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