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Evonik Roehm Gmbh
Evonik Roehm Gmbh_20100107
Evonik Roehm Gmbh_20100128
Evonik Roehm Gmbh_20100114

Evonik Roehm Gmbh patents


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

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


Permanent security film with high transparency and without predetermined breaking points

The present invention relates more particularly to the use of these security labels, which have a thickness of not more than 2 mm, comprise at least 80 wt % of polymethyl methacrylate and contain no impact modification particles.... Evonik Roehm Gmbh

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 Roehm Gmbh

Preparation of n,n-(di)alkylaminoalkyl(meth)acrylamide or n,n-(di)alkylaminoalkyl (meth)acrylate and the quaternary ammonium salts thereof as flocculating aids and gelling agents

wherein R5 in each case is a linear, branched or cyclic alkyl radical, an aryl radical which may also be substituted by one or more alkyl groups, the linear, cyclic or branched alkyl radical may have a length of 1-12 carbon atoms and is, for example, methyl, ethyl, propyl, isopropyl,... Evonik Roehm Gmbh

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... Evonik Roehm Gmbh

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... Evonik Roehm Gmbh

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... Evonik Roehm Gmbh

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... Evonik Roehm Gmbh

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... Evonik Roehm Gmbh

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... Evonik Roehm Gmbh

Impact-resistant molding material having an improved characteristics profile

The invention relates to an impact-modified moulding composition, especially impact-modified PMMA, having an improved profile of properties, especially also at elevated temperatures, to moulded articles obtainable therefrom and to the use of the moulding composition and the moulded article.... Evonik Roehm Gmbh

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 Roehm Gmbh

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. Thus, the... Evonik Roehm Gmbh

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 Roehm Gmbh

Method for producing alpha-hydroxy carboxylic esters in the gas phase

The present invention relates to a process for preparing alpha-hydroxycarboxylic esters from the alcoholysis of alpha-hydroxycarboxam ides in the gas phase, characterized in that the conversion is effected in the presence of water.... Evonik Roehm Gmbh

Pressure-dependent foam moulding of poly(meth)acrylimide particles in closed moulds for producing rigid foam cores

The invention relates to a process for the production of mould-foamed poly(meth)acrylimide (P(M)I) cores, in particular of polymethacrylimide (PMI) cores, which can be used by way of example in automobile construction or aircraft construction. A feature of this process is that polymer granules or polymer powder preheated under pressure are... Evonik Roehm Gmbh

Method for separating ammonia out of an alcoholic solution in the presence of carbonic acid compounds

The present invention describes a method of removing ammonia from alcoholic solution in the presence of carbonic acid compounds while avoiding fouling by supplying the solution to be separated to the upper part of a distillation column and adjusting the temperature at the introduction point such that the ammonium salts... Evonik Roehm Gmbh

Foam moulding poly(meth)acrylimide particles in closed moulds for producing rigid foam cores

The invention relates to a process for the production of mould-foamed poly(meth)acrylimide (P(M)I) cores, in particular of polymethacrylimide (PMI) cores, which can be used by way of example in automobile construction or aircraft construction. A feature of this process is that polymer granules or polymer powder are charged to a... Evonik Roehm Gmbh

Method for the production of high-purity glycerol dimethacrylate

The present invention claims a process for preparing high-purity glycerol dimethacrylate comprising <500 ppm of glycidyl methacrylate, characterized in that an aftertreatment with acidic adsorbent is effected.... Evonik Roehm Gmbh








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