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Omya International Ag patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "O" | Omya International Ag-related inventors


Surface treated filler material product for alpha-nucleation of polyolefins

The present invention relates to a surface treated filler material product for alpha-nucleation of polyolefins, a process for the preparation of the surface treated filler material product, a master batch comprising the surface treated filler material product, a polyolefin composition comprising the surface treated filler material product, an article comprising the polyolefin composition as well as the use of the surface treated filler material product as an alpha-nucleating agent for polyolefins.. . ... Omya International Ag

Use of surface-reacted calcium carbonate as anti-blocking agent

The present invention relates to the use of a surface-reacted calcium carbonate as an anti-blocking agent in polymer(s) containing compositions, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and one or more h3o+ ion donors in an aqueous medium, wherein the carbon dioxide is formed in situ by the h3o+ ion donors treatment and/or is supplied from an external source, an anti-blocking agent comprising surface-reacted calcium carbonate or a combination of surface reacted calcium carbonate and mineral material, a method for controlling the blocking of polymer(s) containing compositions, a polymer(s) containing composition comprising surface reacted calcium carbonate or a combination of surface reacted calcium carbonate and mineral material, a coating composition comprising such polymer(s) containing composition, as well as a substrate coated with such coating composition.. . ... Omya International Ag

Modified mineral-based filler comprising copper salts

The present invention relates to a modified mineral-based filler comprising at least one alkaline earth metal carbonate-comprising material, and at least one water insoluble copper salt comprising the copper mineral malachite in an amount of at least 10 wt.-%, which covers at least partially the surface of the at least one alkaline earth metal carbonate-comprising material, and a method of producing the same.. . ... Omya International Ag

High solids pcc with depolymerized carboxylated cellulose

The present invention relates to a process for producing an aqueous suspension of precipitated calcium carbonate, wherein a depolymerized carboxylated cellulose is added during lime slaking. Furthermore, the present invention relates to an aqueous suspension of calcium carbonate and a precipitated calcium carbonate obtained by said process as well as the use thereof.. ... Omya International Ag

Process for increasing opacity of precipitated calcium carbonate

The present invention relates to a process for preparing an aqueous suspension comprising precipitated calcium carbonate. The invention further relates to an aqueous suspension comprising precipitated calcium carbonate as well as a partially dewatered or essentially completely dried precipitated calcium carbonate obtainable by the process and the use of the aqueous suspension comprising precipitated calcium carbonate and/or the partially dewatered or essentially completely dried precipitated calcium carbonate in paper making, paper coating, plastic, agricultural, adhesives, sealants and/or paint applications.. ... Omya International Ag

Process for the purification of water

The present invention relates to at least one surface-reacted calcium carbonate-comprising mineral material and/or a surface-reacted precipitated calcium carbonate that is/are coated with at least one anionic polymer to obtain a surface-coated calcium carbonate-comprising material as well as to a process for the preparation of the surface-coated calcium carbonate-comprising material. Furthermore, the present invention relates to a process for the purification of water and/or dewatering of sludges and/or suspended sediments and to the use of a surface-coated calcium carbonate-comprising material for water purification and/or dewatering of sludges and/or suspended sediments.. ... Omya International Ag

Dispersible dosage form

The present invention provides for method of improving flowability and loose bulk density of functionalized natural- and/or synthetic calcium carbonate comprising material, to the use of such improved material in ready to use granules and thereof produced dispersible dosage forms.. . ... Omya International Ag

Coarse pigment addition and high solids slurries for higher coating colour concentrations

The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage p5 by weight of particles having a diameter of less than 5.0 μm of from 98.5% to 90%, a percentage p2 by weight of particles having a diameter of less than 2.0 μm of from 96% to 80%, wherein the ratio of p2/p5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.. . ... Omya International Ag

Stretchable coatings

The present invention relates to aqueous coating compositions for stretchable coatings in paper applications comprising at least one acrylic polymeric binder having a tg of −3° c. Or lower, and at least one inorganic filler having a bet specific surface area in the range of 1.0 to 30.0 m2/g, wherein the dry weight ratio of the at least one acrylic polymeric binder to the at least one inorganic filler is between 15:100 and 20:100, as well as their use as stretchable coatings in paper and board applications.. ... Omya International Ag

Method for creating a hidden pattern

The present invention relates to a method for creating a hidden pattern on a substrate, wherein a liquid treatment composition comprising at least one acid is deposited by inkjet printing onto a substrate, which comprises at least one external surface comprising a salifiable alkaline or alkaline earth compound.. . ... Omya International Ag

Blend of surface modified calcium carbonate comprising particles (mcc) and precipitated calcium carbonate comprising particles (pcc) and its uses

The present invention relates to a process for producing an aqueous slurry comprising a blend of surface modified calcium carbonate comprising particles (mcc) and precipitated calcium carbonate comprising particles (pcc), an aqueous slurry comprising the blend, as well as the blend obtainable by drying the aqueous slurry and their uses in paper, paper coating, tissue paper, digital photo paper, paints, coatings, adhesives, plastics, waste water treating or waste water treating agents.. . ... Omya International Ag

Easy to disperse calcium carbonate to improve hot tack strength

The present invention relates to a process for producing an extrusion-coated material, an extrusion-coated material produced by the process, an article comprising the extrusion-coated material as well as the use of the extrusion-coated material in a lamination process.. . ... Omya International Ag

Inkjet printing method

The present invention relates to a method for manufacturing an inkjet-printed substrate, wherein a liquid treatment composition comprising at least one acid and an ink are deposited onto a substrate simultaneously or consecutively by inkjet printing, wherein the substrate comprises a coating layer comprising a salifiable alkaline or alkaline earth compound.. . ... Omya International Ag

Composition and method for controlling the wettability of surfaces

The present invention relates to a composition comprising hedgehog shaped particles, at least one binder, and at least one hydrophobizing agent and/or at least one hydrophilizing agent, a method for controlling the wettability of substrate surfaces using these compositions, as well as a material comprising these compositions.. . ... Omya International Ag

01/18/18 / #20180016439

High solids pcc with cationic additive

The present invention relates to a process for producing an aqueous suspension of precipitated calcium carbonate, an aqueous suspension of precipitated calcium carbonate and a precipitated calcium carbonate obtained by the process, a process comprising the precipitated calcium carbonate and its use.. . ... Omya International Ag

01/18/18 / #20180014532

Use of surface-reacted calcium carbonate as carrier for agrochemical compounds

The present invention relates to the use of surface-reacted calcium carbonate-containing minerals and/or surface-reacted precipitated calcium carbonates as solid particulate carriers to enhance the efficacy of agrochemical compounds loaded onto of said carriers.. . ... Omya International Ag

01/11/18 / #20180009991

Process to obtain an ultrafine gcc with high light scattering properties and high solid content

The present invention relates to a process for the manufacturing of a calcium carbonate-comprising material, a calcium carbonate-comprising material obtained by a process as well as the use of the calcium carbonate-comprising material for paper filler and paper coating applications, cigarette paper applications, for plastics applications or in paints, coatings, adhesives, replacement of titanium dioxide, preferably in paints, sealants, food, feed, pharma, concrete, cement, cosmetic, water treatment and/or agriculture applications.. . ... Omya International Ag

01/04/18 / #20180002205

Process for manufacturing a solution of an earth alkali hydrogen carbonate

The present invention relates to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate, a process for the mineralization of water as well as the use of an aqueous solution comprising at least one earth alkali hydrogen carbonate obtained by the process for the mineralization of water.. . ... Omya International Ag

12/28/17 / #20170369710

Earth alkali carbonate, surface modified by at least one polyhydrogensiloxane

The present invention relates to an earth alkali carbonate-containing filler material having a volatile onset temperature of ≧350 ° c., which is at least partially surface modified by using at least one polyhydrogensiloxane for increasing the hydrophobicity and/or decreasing the moisture pick up, a process for preparing such a surface modified earth alkali carbonate-containing filler material, a fibre and/or filament and/or film and/or thread and/or breathable film comprising the surface modified earth alkali carbonate-containing filler material as well as an article comprising the surface modified earth alkali carbonate-containing filler material and/or the fibre and/or filament and/or film and/or thread and/or breathable film, preferably its use in polyester products.. . ... Omya International Ag

12/28/17 / #20170369695

Treatment of calcium carbonate containing materials for increased filler load in paper

The present invention concerns a process for preparing self-binding pigment particles from an aqueous suspension of calcium carbonate containing material, wherein an anionic binder and at least one cationic polymer are mixed with the suspension.. . ... Omya International Ag

12/21/17 / #20170360046

Calcium carbonate for plant protection

The present invention relates to the use of calcium carbonate as plant protection product for topical, pre-harvest application, wherein the plant protection product controls a pest during plant growth.. . ... Omya International Ag

12/14/17 / #20170355610

Improved process for the production of precipitated calcium carbonate

The present invention relates to a process for the preparation of precipitated calcium carbonate allowing for a more sustainable and cost-efficient use of milk of lime. The obtainable products show good optical properties as well as fine particle size distributions.. ... Omya International Ag

12/14/17 / #20170355104

Surface-treated compacted material

The present invention relates to a process for producing a compacted material comprising the steps of providing a powder material and a polymer binder, simultaneously or subsequently feeding the powder material and the polymer binder into a high speed mixer unit, mixing the powder material and the polymer binder in the high speed mixer unit until formation of a compacted material, and reducing the temperature of the obtained compacted material below the melting point or glass transition temperature of the polymer binder.. . ... Omya International Ag

12/07/17 / #20170349759

Installation for the purification of minerals, pigments and/or fillers and/or the preparation of precipitated earth alkali carbonate

The present invention relates to an installation for the purification of minerals, pigments and/or fillers and/or the preparation of precipitated earth alkali carbonate and/or mineralization of water and to the use of such an installation for the purification of minerals, pigments and/or fillers and/or mineralization of water and/or the preparation of precipitated earth alkali carbonate.. . ... Omya International Ag

11/30/17 / #20170340529

New controlled release active agent carrier

The present invention relates to carriers for the controlled release of active agents, comprising surface reacted natural or synthetic calcium carbonate, one or more active agents, wherein said one or more active agent is associated with said surface-reacted calcium carbonate, and wherein said surface-reacted natural or synthetic calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and one or more acids, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source. It further relates to the preparation of loaded carriers, as well as their use in different applications.. ... Omya International Ag

11/23/17 / #20170335519

Method of producing a filler

The invention discloses a method of producing a filler composition to be used in paper or board production, said method comprising providing a suspension comprising calcium hydroxide and performing carbonation of the calcium hydroxide to form precipitated calcium carbonate (pcc). The invention is characterized in that starch and/or carboxy methyl cellulose (cmc) is added to the suspension during said carbonation of calcium hydroxide. ... Omya International Ag

11/23/17 / #20170335517

A process for the preparation of flocculated filler particles

The present invention concerns a process for the preparation of flocculated filler particles, wherein at least two aqueous suspensions of at least one filler material and at least one flocculating additive are combined.. . ... Omya International Ag

10/26/17 / #20170305755

Pcc with reduced portlandite content

The present invention is directed to a process for producing an aqueous suspension of precipitated calcium carbonate, wherein a milk of lime is prepared by mixing water, a calcium oxide containing material, and a precipitation enhancer, and subsequently, the milk of lime is carbonated to form an aqueous suspension of precipitated calcium carbonate.. . ... Omya International Ag

10/26/17 / #20170304165

Controlled release active agent carrier

The present invention relates to carriers for the controlled release of active agents, comprising surface reacted natural or synthetic calcium carbonate, one or more active agents, wherein said one or more active agent is associated with said surface-reacted calcium carbonate, and wherein said surface-reacted natural or synthetic calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and one or more acids, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source. It further relates to the preparation of loaded carriers, as well as their use in different applications.. ... Omya International Ag

10/12/17 / #20170290365

Surface-reacted calcium carbonate for use as anti-caking agent

The present invention relates to the use of a surface-reacted calcium carbonate as anti-caking agent, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and at least one acid in an aqueous medium, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source, and to a composition comprising said anti-caking agent, as well as to a method for the production of such a composition.. . ... Omya International Ag

10/05/17 / #20170283619

Process for improving particle size distribution of calcium carbonate-comprising material

The present invention relates to a process for the preparation of an aqueous suspension comprising at least one calcium carbonate-comprising material, the calcium carbonate-comprising material having a ratio of particles having an average particle size d80 value to particles having an average particle size d20 value [d80/d20] in the range from 1.5 to 4 and the use of the calcium carbonate-comprising material in paper and board applications, in cosmetics, in caulks and sealants, in adhesives, in paints and coatings, in fibre applications, in plastics applications or for the replacement of pcc in general.. . ... Omya International Ag

09/28/17 / #20170275825

A process for the preparation of flocculated filler particles

The present invention concerns a process for the preparation of flocculated filler particles, wherein at least two aqueous suspensions of at least one filler material and at least one flocculating additive are combined.. . ... Omya International Ag

09/28/17 / #20170275175

Dry process for preparing a surface-modified alkaline earth metal carbonate-containing material

The present invention relates to a process to modify at least part of the surface of an earth alkaline metal carbonate-containing material in a dry blending process as well as to a mineral product obtainable by the inventive process and uses thereof.. . ... Omya International Ag

08/24/17 / #20170240746

Reduced moisture pickup in polyol-containing mineral filler products

The present invention relates to a process for the production of a mineral filler product comprising a step of dry grinding a calcium carbonate-containing material in the presence of an agent being a polyol. The mineral filler product according to the present invention was found to have a reduced moisture pickup as compared to prior art products.. ... Omya International Ag

08/24/17 / #20170240433

Method for the manufacturing of a suspension comprising a calcium carbonate-comprising material

The present invention relates to a process for the manufacturing of a calcium carbonate-comprising material, to a calcium carbonate-comprising material obtained by the process as well as the use of the calcium carbonate-comprising material for paper filler and paper coating applications, in plastics applications, in paints, in adhesives, in sealings, in concrete, in agriculture applications, in food applications, in cosmetic applications or in pharmaceutical applications.. . ... Omya International Ag

08/17/17 / #20170233948

Process for preparing self-binding pigment particle suspensions

The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension as filler material.. . ... Omya International Ag

08/10/17 / #20170224862

Method for the control of odour

The present invention relates to a method for the control of odour by contacting surface-reacted calcium carbonate with odourants, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and one or more acids, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source, to the use of the surface-reacted calcium carbonate for the control of odour, as well as to products for the control of odour containing surface reacted calcium carbonate.. . ... Omya International Ag

08/03/17 / #20170218148

Surface-treated fillers for breathable films

The present invention relates to a breathable film comprising at least one thermoplastic polymer and a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof, a process for producing the same, and the use thereof. Furthermore, the present invention is directed to the use of a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof in breathable films.. ... Omya International Ag

07/20/17 / #20170204536

Multifilament polyester fibres

The present invention concerns a multifilament fibre comprising at least one polymer comprising a polyester, and at least one filler comprising calcium carbonate. The present invention further relates to a process of producing such a multifilament fibre as well as the use of calcium carbonate as filler in a multifilament fibre comprising at least one polymer comprising a polyester.. ... Omya International Ag

07/13/17 / #20170198440

Starch-based phch

The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension in paper applications, such as in paper coating or as filler material.. . ... Omya International Ag

07/13/17 / #20170198137

Polymer composition filled with an inorganic filler material mixture

The present invention relates to a polymer composition comprising at least 20.0 wt.-%, based on the total weight of the polymer composition, of at least one biodegradable polymer resin, from 0.1 to 20.0 wt.-%, based on the total weight of the polymer composition, of at least one polyolefin selected from polyethylene and/or polypropylene and from 5.9 to 60.0 wt.-%, based on the total weight of the polymer composition, of an inorganic filler material dispersed in the at least one polyolefin and the at least one biodegradable polymer resin, a process for the preparation of such a polymer composition, the use of an inorganic filler material for increasing the thermal stability and/or processability of a polymer composition, the use of the polymer composition for the preparation of an article as well as in a process selected from extrusion process, co-extrusion process, blown film extrusion process, cast film extrusion or sheet extrusion process, extrusion coating process, injection molding process, blow molding process, thermoforming process as well as an article comprising the polymer composition.. . ... Omya International Ag

07/13/17 / #20170197203

Regeneratable ion exchange material for reducing the amount of co2

The present invention relates to a method for reducing the amount of co2 in a carbon dioxide-containing source by using a regeneratable ion exchange material as well as to the use of a regeneratable ion exchange material for reducing the amount of co2 from a carbon dioxide-containing source.. . ... Omya International Ag

07/06/17 / #20170190915

Mineral pigment containing calcium carbonate, an aqueous suspension containing it and uses thereof

The present invention concerns the technical sector of mineral pigments containing a product formed in situ by the double and/or multiple reaction between a calcium carbonate and the reaction product or products of the said carbonate with one or more moderately strong to strong h3o+ion donors and the reaction product or products of the said carbonate with gaseous co2 formed in situ and/or coming from an external supply, and at least one aluminium silicate and/or at least one synthetic silica and/or at least one calcium silicate and/or at least one silicate of a monovalent salt such as sodium silicate and/or potassium silicate and/or lithium silicate, and/or at least one aluminium hydroxide and/or at least one sodium and/or potassium aluminate, containing less than 0.1% by weight silicate of a monovalent salt such as sodium, potassium or lithium silicate or mixtures thereof, relative to the dry weight of calcium carbonate, having a ph greater than 7.5 measured at 20° c., and their uses in papermaking applications such as mass filling and/or the coating of paper and more particularly of printing paper, in particular for offset printing, or digital printing such as inkjet and/or laser printing.. . ... Omya International Ag

07/06/17 / #20170190848

Process for the production of a composite polymer material with increased filler content

An inventive process for the production of a composite polymer material is provided allowing for the preparation of a composite polymer material with high filler content which may be used as a masterbatch.. . ... Omya International Ag

06/22/17 / #20170174895

Process for the preparation of crumbles comprising calcium carbonate

The present invention relates to crumbles comprising at least one calcium carbonate-containing material, a process for the preparation of the crumbles, an article comprising the crumbles as well as an use of the crumbles in paper making, paper coating, food, plastic, preferably films, more preferably blown films or breathable films, fibres, polyvinyl chloride, plastisols, thermosetting polymers, more preferably thermosetting unsaturated polyesters or thermosetting unsaturated polyurethanes, agricultural, paint, coatings, adhesives, sealants, pharmaceuticals, agricultural, construction and/or cosmetic applications.. . ... Omya International Ag

06/15/17 / #20170164616

Antiseptic product, process for preparing same and its use

The present invention relates to a process for preparing an antiseptic product, an antiseptic product obtainable by the process, an antiseptic inorganic powder composition, an antiseptic polymer product as well as the use of one or more source of lithium ions in combination with one or more source of sodium ions for the preparation of an antiseptic product being effective against microbial contamination.. . ... Omya International Ag

06/08/17 / #20170158532

Acid wastewater treatment

The invention relates to a process for the selective precipitation of at least one conjugate base and/or at least one metal cation from an acidic preparation by neutralization as well as the use of an aqueous slurry of at least one calcium carbonate source for the selective precipitation of at least one conjugate base and/or at least one metal cation from an acidic preparation by neutralization.. . ... Omya International Ag

06/08/17 / #20170157171

Surface-reacted calcium carbonate for desensitizing teeth

The present invention relates to surface-reacted calcium carbonate, wherein the surface-reacted calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and at least one acid. Said calcium carbonate and oral compositions containing the same can be used as a medicament, and especially in treating dentine hypersensitivity.. ... Omya International Ag

05/18/17 / #20170137299

Process for obtaining precipitated calcium carbonate

The present invention provides a process for preparing a precipitated calcium carbonate product comprising the steps of: (a) preparing an aqueous suspension of precipitated calcium carbonate seeds by carbonating a suspension of ca(oh)2 in the presence of 0.005 to 0.030 moles of sr, in the form of sr(oh)2, per mole of ca(oh)2, (b) dewatering and dispersing the precipitated calcium carbonate seeds prepared in step (a) to obtain an aqueous suspension of precipitated calcium carbonate seeds having a d50 of less than or equal to 0.1 to 0.3 μm and a bet specific surface area of 10 to 30 m2/g, and (c) forming an aqueous suspension of a precipitated calcium carbonate product by carbonating a slurry of ca(oh)2 in the presence of 0.5 to 5% by dry weight of the precipitated calcium carbonate seeds obtained in step (b), wherein the precipitated calcium carbonate seeds have a d50 that is less than the d50 of the precipitated calcium carbonate product and the precipitated calcium carbonate seeds have an aragonitic polymorph content greater than or equal to the precipitated calcium carbonate product obtained in step (c) characterized in that the dewatering of step (b) is carried out by the use of a tube press.. . ... Omya International Ag

05/11/17 / #20170129782

Drying process

The present invention refers to a process for making a calcium carbonate containing material, wherein the process includes a specific drying procedure and allows for the provision of calcium carbonate materials with reduced moisture pick-up and low porosity.. . ... Omya International Ag

04/27/17 / #20170114223

Coarse pigment addition and high solids slurries for higher coating colour concentrations

The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage p5 by weight of particles having a diameter of less than 5.0 μm of from 98.5% to 90%, a percentage p2 by weight of particles having a diameter of less than 2.0 μm of from 96% to 80%, wherein the ratio of p2/p5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.. . ... Omya International Ag

04/20/17 / #20170105911

Surface-reacted calcium carbonate for remineralisation and whitening of teeth

The present invention relates to surface-reacted calcium carbonate, wherein the surface-reacted calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and at least one acid. Said calcium carbonate and oral compositions containing the same can be used in remineralisation and/or whitening of teeth.. ... Omya International Ag

03/23/17 / #20170081519

Method for the production of granules comprising surface-reacted calcium carbonate

The present invention relates to a method for the production of granules comprising surface-reacted calcium carbonate by a) providing surface-reacted calcium carbonate, b) saturating the surface-reacted calcium carbonate with one or more liquids; c) providing one or more binder; d) combining the liquid saturated surface-reacted calcium carbonate with the one or more binder under agitation in an agitation device; e) removing the liquid from the mixture of step d); as well as to the granules comprising surface-reacted calcium carbonate obtained by this method.. . ... Omya International Ag

03/23/17 / #20170081208

Process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its use

The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses.. . ... Omya International Ag

03/16/17 / #20170073901

Mineral oil barrier

The present invention is directed to a liquid coating composition comprising at least one terephthalate ionomer comprising anionic substituents selected from sulfonate, carboxylate and/or phosphate groups, wherein the at least one terephthalate ionomer has an acid value of at least 1 mg koh/g ionomer, at least one calcium carbonate containing filler, and a buffer.. . ... Omya International Ag

03/16/17 / #20170072727

Calcium carbonate for rotogravure printing medium

The present invention relates to the field of rotogravure printing, and more specifically to a rotogravure printing medium, a coating composition for rotogravure printing media, a method for producing such a rotogravure printing medium and an use of the rotogravure printing medium in a printing application, preferably in rotogravure printing using electrostatic assist (esa).. . ... Omya International Ag

03/09/17 / #20170065974

Process for preparing a surface-modified material

The present invention relates to a method of manufacturing a surface-modified material, wherein a substrate, which comprises on at least one side a coating layer comprising a salifiable alkaline or alkaline earth compound, is treated with a liquid composition comprising an acid to form at least one surface-modified region on the coating layer.. . ... Omya International Ag

03/02/17 / #20170057118

Fiber board product comprising a calcium carbonate-containing material

The present invention relates to a fiber board product comprising fibers in an amount from 50.0 to 99.0 parts by weight (d/d), at least one particulate calcium carbonate-containing material in an amount from 1.0 to 50.0 parts by weight (d/d), at least one binder in an amount from 0.05 to 25.0 parts by weight (d/d), at least one wax in an amount from 0 to 5.0 parts by weight (d/d), wherein the sum of the fibers and the at least one particulate calcium carbonate-containing material is 100.0 parts by weight (d/d), a process for manufacturing such a fiber board product as well as an use of at least one particulate calcium carbonate-containing material having a weight median particle size d50 of 0.5 to 150.0 μm as fiber replacement in a fiber board product, preferably in a high-density fiber (hdf) board, medium-density fiber (mdf) board, low-density fiber (ldf) board or particle board.. . ... Omya International Ag

02/23/17 / #20170051153

Process for the preparation of a treated mineral filler product, the obtained mineral filler product and its uses

The present invention relates to the domain of mineral filler treatment processes. The process for the preparation of a treated mineral filler product comprises the following steps: (a) treating at least one dry mineral filler with at least one group ii or group iii salt of a c8 to c24 aliphatic monocarboxylic acid to produce an intermediate mineral filler product; followed by (b) treating the intermediate mineral filler product of step (a) with at least one c8 to c24 aliphatic monocarboxylic acid to produce a treated mineral filler product. ... Omya International Ag

02/09/17 / #20170036930

Process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its use

The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses.. . ... Omya International Ag

01/26/17 / #20170020134

Mic reduction with lithium ions

The invention relates to a process for reducing the minimum inhibitory concentration (mic) of a biocide against at least one strain of bacteria and/or at least one strain of yeast and/or at least one strain of mould in an aqueous preparation. The invention further relates to the use of a water soluble source of lithium ions for reducing the minimum inhibitory concentration (mic) of a biocide against at least one strain of bacteria and/or at least one strain of yeast and/or at least one strain of mould in an aqueous preparation.. ... Omya International Ag

01/19/17 / #20170015859

Process of manufacture of particles with a natural calcium carbonate and ethylene acrylic acid salts base, suspensions and dry pigments obtained, their uses

The present invention consists of a process of preparation of at least one mineral matter and/or of at least one pigment, including a calcium carbonate made at once partially organophilic and partially hydrophilic, in which the carbonate is blended and/or ground and/or concentrated in an aqueous medium, in the presence of at least one salt of ethylene acrylic acid, one dispersing agent and/or one grinding aid agent, which is introduced before and/or during this treatment stage. Another object of the invention lies in the aqueous dispersions and suspensions of calcium carbonate thus obtained. ... Omya International Ag

01/12/17 / #20170009077

Surface modified calcium carbonate containing minerals and its use

The present invention is related to ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, the process for preparing such ball-shaped spherical surface modified spherical calcium carbonate comprising minerals, and their use.. . ... Omya International Ag

01/12/17 / #20170009076

Process for the preparation of a mineral filler product

A process for the preparation of a mineral filler product is disclosed, the process comprising a step of dry grinding a calcium carbonate-containing material in a mixture obtained by contacting the calcium carbonate-containing material with at least one grinding agent selected from specific styrene-maleic anhydride co-polymers and/or specific derivatives of styrene-maleic anhydride co-polymers.. . ... Omya International Ag

01/05/17 / #20170002204

Process to prepare surface-modified mineral material, resulting products and uses thereof

The present invention refers to a process to modify at least part of the surface of at least one mineral material, and to the use, as an additive in an aqueous suspension of mineral materials having a ph between 5 and 10, of at least one agent, wherein the additive allows for the formation of a low volume, high solids content filter or centrifuge cake on dewatering the suspension.. . ... Omya International Ag








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