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Omya International Ag patents (2016 archive)


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


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 wet 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

Improved gel stability

The present invention relates to a composition having a gel strength of from 1.0 μn to 10.0 n, a method of preparing a composition having a gel strength of from 1.0 μn to 10.0 n, a method of hydraulically fracturing of a subterranean formation, preferably an oil well or gas well, a hydraulically fracturing fluid as well as the use of said composition for hydraulic fracturing of a subterranean formation. The present invention further relates to the gel and use of this gel in pharmaceutical applications, cosmetic applications, constructing applications, paper applications, paint applications, plastic applications, food applications and/or agricultural applications.. ... Omya International Ag

Abrasive cleaning composition

The present invention relates to an abrasive cleaning composition comprising at least 6 wt.-%, based on the total weight of the composition, of a surface-reacted calcium carbonate as an abrasive material, wherein the surface-reacted calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and at least one acid.. . ... Omya International Ag

Process for improving the particle size distribution of a calcium carbonate-containing material

The present invention relates to a process for the preparation of an aqueous suspension comprising at least one calcium carbonate-containing material. The invention further relates to calcium carbonate-containing material having a ratio of particles having an average particle size d80 value to particles having an average particle size d20 value [d80/d20] of ≦2.50 and the use of the calcium carbonate-containing material in paper and board applications, in cosmetics, in caulks and sealants, in paints and coatings, or in plastics applications.. ... Omya International Ag

Nucleic acids and methods for detecting pathogens and beneficial microorganisms

The present invention relates to nucleic acids and methods for detecting pathogens and beneficial microorganisms.. . ... Omya International Ag

Gastroretentive drug formulation and delivery systems and their method of preparation using functionalized calcium carbonate

An instantly floating gastroretentive drug formulation comprising at least one functionalized natural and/or synthetic calcium carbonate-comprising mineral and at least one pharmaceutically active ingredient and at least one formulating aid wherein said functionalized 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.. . ... Omya International Ag

Coating composition comprising submicron calcium carbonate-comprising particles, process to prepare same and use of submicron calcium carbonate-comprising particles in coating compositions

. . A coating composition comprising an aqueous dispersion of submicron natural ground calcium carbonate particles contained in a liquid binder, wherein the resultant coating may constitute either a clear coat or a glossing and opacifying coating, depending upon the presence of certain additives such as a mineral pigment (e.g., tio2). The composition is characterised in that comprises, in the case of a clear coating, at least one ground natural calcium carbonate having a median diameter of between 0.05 and 0.15 μm, while in the case of a glossing and opacifying coating, at least one ground natural calcium carbonate having a median diameter of between 0.05 and 0.3 μm and at least one pigment having a refractive index of greater than or equal to 2.5.. ... Omya International Ag

Process for producing a high solids pigment suspension comprising carboxymethylcellulose-based dispersant

The present invention relates to a process for preparing an aqueous suspension comprising a mineral pigment material and a depolymerized carboxymethylcellulose having a degree of carboxylation in the range from 0.2 to 2.2, a molecular weight in the range from 5000 to 40000 g/mol, and a polydispersity index in the range from 2 to 10.. . ... Omya International Ag

Precipitated calcium carbonate from pulp mill waste having an improved brightness, method for the production and use thereof

The present invention relates to a process for the production of a precipitated divalent metal ion carbonate product from a divalent metal ion carbonate which was recovered from waste, the precipitated divalent metal ion carbonate product having an improved brightness, the process comprising the steps of: providing a low-purity divalent metal ion carbonate material, the divalent metal ion carbonate material being recovered from waste; calcining the divalent metal ion carbonate material in order to obtain a divalent metal ion oxide; slaking the divalent metal ion oxide in order to obtain an aqueous suspension of a divalent metal ion hydroxide; carbonating the aqueous suspension of the divalent metal ion hydroxide with a carbon dioxide containing compound in order to obtain fine precipitated divalent metal ion carbonate particles; post-treating the fine precipitated divalent metal ion carbonate particles to obtain fine discrete precipitated divalent metal ion carbonate particles; adding the fine discrete precipitated divalent metal ion carbonate particles to an aqueous suspension of divalent metal ion hydroxide that was obtained by slaking high-purity divalent metal ion hydroxide in order to obtain a resulting reaction mixture; and carbonating the resulting reaction mixture in order to obtain the precipitated divalent metal ion carbonate product having an improved brightness.. . ... Omya International Ag

Micronized earth alkali carbonate-containing material for regulating the ph of a soil

The present invention relates to a method for regulating the ph of a soil as well as the use of at least one earth alkali carbonate-containing material having a weight median particle size d50 value of ≦50.0 μm for optimizing or improving the ph of a soil as well as the use of an irrigation or spraying system for the application of an aqueous suspension comprising at least one earth alkali carbonate-containing material in order to optimize or improve the ph of a soil.. . ... Omya International Ag

Calcium carbonate barrier films and uses thereof

The present invention provides polyolefin films comprising calcium carbonate that have a reduced moisture vapor transmission rate, methods of making the films, and packaging materials comprising the films.. . ... Omya International Ag

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 um 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

Multiple batch system for the preparation of a solution of calcium hydrogen carbonate suitable for the remineralization of desalinated water and of naturally soft water

The invention relates to a multiple batch system for the preparation of a solution of calcium hydrogen carbonate and the use of such a dual batch system for the preparation of a solution of calcium hydrogen carbonate.. . ... Omya International Ag

System and method for the concentration of a slurry

The present invention relates to a system and a method for the concentration of slurry, especially mineral containing slurry. The invention provides a system comprising an electrophoresis unit and a separation unit, where the separation unit comprises a recipient, preferably of half cylindrical form, with adjusted flanks for separating the solid material or cake from the rotating anodes and a sliding carriage suitable for closing the recipient and stripping resting solid material from the flanks into the recipient before the solid material or cake is pressed out of the recipient by a piston.. ... Omya International Ag

05/12/16 / #20160130444

Use of 2-amino-2-ethyl-1,3-propanediol as additive in aqueous suspensions of calcium carbonate-comprising materials while maintaining stable suspension conductivity

Use of 2-amino-2-ethyl-1,3-propanediol as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material, wherein the use provides improved stability with regard to the conductivity of the suspension.. ... Omya International Ag

05/12/16 / #20160130163

Installation for the preparation of a solution of calcium hydrogen carbonate suitable for the remineralization of water

The invention relates to an installation for the preparation of a solution of calcium hydrogen carbonate and the use of such an installation for the continuous preparation of a solution of calcium hydrogen carbonate as well as the use of such an installation for the remineralization of water.. . ... Omya International Ag

04/28/16 / #20160115302

New surface treatment of white mineral materials for application in plastics

. . The present invention relates to a polymer composition comprising at least one polymeric resin and from 0.1 to 95 wt.-% of at least one surface reactive white mineral material, a process for preparing a surface reactive white mineral material, a surface reactive white mineral material obtainable by the process, a fibre and/or filament and/or film and/or thread and/or breathable film comprising the polymer composition and/or the surface reactive white mineral material, an article comprising the polymer composition and/or the surface reactive white mineral material and/or the fibre and/or filament and/or film and/or thread and/or breathable film as well as the use of a phosphoric acid ester blend for decreasing the hydrophilicity and/or moisture pick up susceptibility of the surface reactive white mineral material-containing particle surface.. . ... Omya International Ag

04/28/16 / #20160115078

Process for the preparation of cement, mortars, concrete compositions containing calcium carbonate - based filler(s) (pre) - treated with ultrafine (uf) filler(s), compositions and cement products obtained and their applications

Process for the preparation of “high performance”, “hp”, or “fluid”, or “technical”, cement or mortars or concrete systems or compositions (hereafter for simplicity “cements” or “cements systems” or “cement compositions” or “cements”) having an improved compacity, an improved flowability (and globally speaking a definitely improved “workability”; product consisting of, or comprises, a blend of coarse (or optionally hp) “calcium carbonate-based filler(s)” pre-blended with at least an uf; cement compositions incorporating the said blend or aqueous composition, namely the said blend of low or medium (or optionally hp) coarse filler(s) treated with at least one uf; use of the said blend, or aqueous compositions and cement composition.. . ... Omya International Ag

04/07/16 / #20160096961

Treated mineral filler products, process for the preparation thereof and uses of same

The present invention relates to the technical field of treated mineral filler products. The invention further relates to a process for preparing such treated mineral filler products, and to its preferred use in the field of plastic applications, and in particular polypropylene (pp)- or polyethylene (pe)-based breathable or extrusion coating film applications.. ... Omya International Ag

03/03/16 / #20160060143

Surface-treated calcium carbonate and phyllosilicate and its use in water purification

The invention relates to a process for the purification of water and/or dewatering of sludges and/or sediments, to the use of a combination of a phyllosilicate and a surface-treated calcium carbonate for water purification and/or dewatering of sludges and/or sediments, as well as to the use of a combination of a phyllosilicate and a surface-treated calcium carbonate for reducing the amount of polymeric flocculation aids in water and/or sludges and/or sediments and to a composite material comprising at least one surface-treated calcium carbonate, at least one phyllosilicate and impurities originated from different sources obtainable by said process.. . ... Omya International Ag

02/11/16 / #20160040014

Use of a polymeric emulsion for the surface treatment of particles of mineral matter

The present invention relates to the use of a new polymeric aqueous emulsion for surface treating particles of mineral matter.. . ... Omya International Ag

01/28/16 / #20160023915

Process for preparing scalenohedral precipitated calcium carbonate

The present invention provides a process for preparing a precipitated calcium carbonate product. The process comprises the steps of preparing slaking quick lime to obtain slaked lime; and subjecting the slaked lime, without agitation, without prior cooling in a heat exchanger, and in the absence of any additives, to carbonation with carbon dioxide gas to produce pcc. ... Omya International Ag

01/28/16 / #20160023451

Print medium

The present invention concerns a print medium and a method of producing such a print medium. In particular, the present invention is directed to a print medium comprising a substrate having a first and a reverse side, and at least one coating layer on of the substrate sides.. ... Omya International Ag

01/21/16 / #20160017113

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

01/21/16 / #20160016850

Process for the preparation of cement, mortars, concrete compositions containing a calcium carbonate - based filler (pre)- treated with a superplasticizer, compositions and cement products obtained and their applications

The invention concerns a process for the preparation of cement/mortar/concrete (for simplicity: “cement”) compositions or systems, (hereafter “cement” compositions or systems for simplicity), of a general known type, in which the filler(s) is/are comprising or consist of “calcium carbonate-based filler(s)”, comprising at least one step where the said filler(s) is/are treated with an efficient treating amount of at least one treating agent consisting of or comprising superplastifier(s). The main purpose of this invention is to build a process aimed at providing improved, “high performance”, fluid, cement or mortars or concrete systems or compositions having an improved compacity, an improved flowability, and globally speaking a definitely improved “workability”, and “regularity” of the properties of the final systems. ... Omya International Ag








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