Patents Assigned to Coatex
  • USE OF ALKALINE CARBONATE SALTS TO REDUCE THE DOSE OF ACRYLIC POLYMER IN A METHOD OF GRINDING CALCIUM CARBONATE IN WATER
    Publication number: 20120142842
    Abstract: The use of alkaline carbonate salts in a method of manufacturing an aqueous composition of calcium carbonate by grinding. These salts make it possible to reduce the quantity of grinding aid agents implemented, which are water-soluble homopolymers or copolymers of acrylic acid. These homopolymers or copolymers greatly contribute to increasing the carbon dioxide content of the atmosphere, and are derived from raw materials that come from a fossil fuel: by limiting their quantity, both the environment and our natural resources are preserved.
    Type: Application
    Filed: November 18, 2011
    Publication date: June 7, 2012
    Applicant: COATEX S.A.S.
    Inventors: Christian JACQUEMET, Olivier GUERRET
  • Use of acrylic comb polymers with hydrophobic groups as coupling agents in a method for grinding mineral materials with binders
    Patent number: 8191807
    Abstract: The invention pertains to the use as a coupling agent, in a method for manufacturing self-binding particles by grinding at least one latex binder and at least one mineral material in an aqueous medium, of an aqueous solution of a fully or partially acidic water-soluble copolymer, present during the step of grinding, wherein the copolymer is made up of at least one ethylenically-unsaturated anionic monomer, and at least one ethylenically-unsaturated oxyalkylated monomer terminated by a hydrophobic alkyl, alkylaryl, arylakyl, or aryl chain having 10 to 32 carbon atoms.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: June 5, 2012
    Assignee: Coatex S.A.S.
    Inventors: Olivier Guerret, Jacques Mongoin
  • USE OF AMINES IN COMBINATION WITH ACRYLIC POLYMERS IN THE MANUFACTURE OF AQUEOUS SUSPENSIONS OF MINERAL MATTERS
    Publication number: 20120129986
    Abstract: The use of an amine in a method to manufacture an aqueous suspension of mineral matter by dispersion and/or grinding in the presence of at least one acrylic polymer. The amine enables the quantity of polymer dispersant to be reduced. In a preferred embodiment the quantity of acrylic dispersant is reduced, whilst keeping the same mineral matter content, and maintaining or even improving the rheology of the suspension over time.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 24, 2012
    Applicant: COATEX S.A.S.
    Inventor: Jacques MONGOIN
  • Use of phosphoric acid to reduce the quantity of free dispersing agent in a method for concentrating calcium carbonate in water
    Patent number: 8163829
    Abstract: The invention consists of the use of phosphoric acid, in a method for concentrating an aqueous dispersion or suspension of calcium carbonate in the presence of at least one acrylic dispersing agent, as an agent for reducing the quantity of free dispersing agent, i.e. the fraction of acrylic dispersing agent not adsorbed onto the surface of the particles of the calcium carbonate and present in the aqueous phase. It also pertains to the aqueous dispersions or suspensions of calcium carbonate, exhibiting a reduced quantity of free dispersing agent.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: April 24, 2012
    Assignee: Coatex S.A.S.
    Inventors: Christian Jacquemet, Jacques Mongoin
  • USE AS A RHEOLOGY AGENT IN A FILLED PLASTIC PASTE OF A DRY-GROUND CALCIUM CARBONATE WITH A COPOLYMER OF (METH)ACRYLIC ACID WITH AN ALKOXY OR HYDROXY POLYALKYLENEGLYCOL GROUP
    Publication number: 20120053280
    Abstract: The invention resides in the use, as an agent reducing the viscosity of a thermoplastic or thermosetting paste filled with a calcium carbonate, of a calcium carbonate characterised in that it is obtained by dry-grinding, firstly, and in that it is dry-ground in the presence of a grinding aid agent which is a copolymer of (meth)acrylic acid with a monomer containing an alcoxy or hydroxy polyalkyleneglycol group, secondly. The invention also concerns the filled thermoplastic and thermosetting pastes obtained in this manner.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 1, 2012
    Applicant: COATEX S.A.S.
    Inventors: Jacques MONGOIN, Christian Jacquemet, Jean-Marc Suau, Olivier Guerret, Patrick Trouve
  • PAPER COATINGS OF AMPHIPHILIC, NON-WATER-SOLUBLE COMB-BRANCHED (METH)ACRYLIC POLYMERS, USES THEREOF
    Publication number: 20120046404
    Abstract: Polymers, paper coating compositions, and coated paper.
    Type: Application
    Filed: June 23, 2011
    Publication date: February 23, 2012
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, Murielle GUILLOT
  • AMPHIPHILIC AND NON-WATER SOLUBLE (METH)ACRYLIC COMB POLYMERS
    Publication number: 20120046412
    Abstract: Non water-soluble polymers with a comb structure and a (meth)acrylic skeleton on which are grafted side chains containing at least one hydrophobic monomer of the styrene or (meth)acrylic ester type on C1 to C4, and at least one hydroxy or methoxy polylakylene glycol monomer. The levels of monomers are such that the polymer is amphiphilic because it is both rich in hydrophobic monomer and polylakylene glycol monomer. These products, used in paper coating dispersions, enable an increase in their Brookfield™ viscosity, a reduction in their ACAV viscosity, and an improvement in their water retention, which makes them particularly well suited for dry extract and/or high deposit speed coatings.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 23, 2012
    Applicant: COATEX S.A.S.
    Inventor: Jean-Marc Suau
  • Use of a rheological additive in the manufacture by vibrocompaction of a water and hydraulic binder based formulation, formulation obtained
    Patent number: 8110130
    Abstract: The present invention consists in the use, in a process of manufacture of a composition with a water and hydraulic binder base, of a rheological additive characterised in that it is an emulsion of at least one non-cross-linked copolymer, consisting of: a) (meth)acrylic acid, b) alkyl(meth)acrylate having 1 to 25 carbon atoms, c) a monomer of formula R1—(R2O)m—R3, in which: R1 designates a radical containing a polymerisable unsaturated group, R2O designates an alkylene oxide group having 1 to 6 carbon atoms, m is an integer between 20 and 30, preferentially between 23 and 27, and is very preferentially equal to 25, R3 designates a linear or branched alkyl chain having 28 to 33 carbon atoms, preferentially 30 to 33 carbon atoms, and very preferentially having 32 carbon atoms. The invention also concerns the formulations thus obtained.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: February 7, 2012
    Assignee: Coatex S.A.S.
    Inventors: Yves Kensicher, David Platel
  • ACRYLIC ACID SWELLABLE ALKALI ACRYLIC EMULSIONS, THEIR USE IN AQUEOUS FORMULATIONS AND THE FORMULATIONS CONTAINING THEM
    Publication number: 20110319561
    Abstract: New methacrylic acid-free direct emulsions of a polymer in water. Methods of making and using.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 29, 2011
    Applicant: COATEX S.A.S.
    Inventor: Jean-Marc SUAU
  • ALKALI SWELLABLE ACRYLIC EMULSIONS WITHOUT SURFACTANTS, USE THEREOF IN AQUEOUS FORMULATIONS, AND FORMULATIONS CONTAINING THEM
    Publication number: 20110319500
    Abstract: The present invention pertains to new alkali swellable thickening emulsions, free of surfactants and solvents other than water: as a result, all drawbacks related to the use of solvents, or to the formation of foam in the case of surfactants, are avoided. These new emulsions contain a certain quantity of 2-acrylamido-2-methylpropane sulfonic acid (or AMPS, CAS #: 40623-75-4). They have proven effective at thickening aqueous mediums, particularly water-based paints, paper coatings, aqueous suspensions of mineral materials, detergents, cosmetic formulations, or formulations containing a hydraulic binder.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 29, 2011
    Applicant: COATEX S.A.S.
    Inventor: Jean-Marc SUAU
  • USE IN A HYDRAULIC BINDER COMPOSITION OF A DRY-GROUND CALCIUM CARBONATE WITH A COPOLYMER OF (METH) ACRYLIC ACID AND AN ALKOXY OR HYDROXY POLYALKYLENEGLYCOL GROUP
    Publication number: 20110319526
    Abstract: A dry-ground calcium carbonate obtained by dry-grinding calcium carbonate in the presence of a grinding aid agent which is a copolymer of (meth)acrylic acid with a monomer containing an alkoxy or hydroxy polyalkyleneglycol group, and compositions of the dry-ground calcium carbonate with a hydraulic binder base.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, Jacques Mongoin, Yves Kensicher, Olivier Guerret
  • USE IN A PAINT OF A DRY-GROUND CALCIUM CARBONATE WITH A COPOLYMER OF (METH)ACRYLIC ACID WITH AN ALKOXY OR HYDROXY POLYALKYLENEGLYCOL GROUP
    Publication number: 20110319544
    Abstract: A paint comprising a calcium carbonate that is obtained by dry-grinding in the presence of a grinding aid agent comprising a copolymer of (meth)acrylic acid with a monomer containing an alkoxy or hydroxy polyalkyleneglycol group.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, Jacques Mongoin, Denis Ruhlmann, Olivier Guerret
  • HYDROXY POLYALKYLENE GLYCOL FUNCTION (METH) ACRYLIC COMB POLYMERS, THEIR USE AS SHEAR-THINNING AGENTS IN COATING DISPERSIONS AND DISPERSIONS CONTAINING THEM
    Publication number: 20110305915
    Abstract: Comb polymers useful in paper coating dispersions.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 15, 2011
    Applicant: COATEX S.A.S.
    Inventors: Francois Dupont, Murielle Guillot, Renaud Souzy, Jean-Marc Suau
  • Method for dry grinding a material containing a carbonate ore
    Patent number: 8074909
    Abstract: The present invention is directed to a method for dry milling a material containing a carbonate ore. The method comprises the following steps: (a) dry milling the material in at least one milling unit: (i) in the presence of at least one polyalkylene glycol polymer having monomer units forming a backbone, where at least 90% of the monomer units forming the backbone of the polymer are constituted by ethylene oxide, propylene oxide or their mixtures, and where the polymer has a molecular weight of at least equal to 400 g/mole, (ii) such that the milling unit contains a quantity of water that is less than 10% in dry weight of the material in the milling unit; (b) optionally classifying the material from step a) with at least one classification unit; and (c) optionally repeating steps a) and/or b) with all or part of the material from step a) and/or step b).
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: December 13, 2011
    Assignees: Omya Development AG, Coatex S.A.S.
    Inventors: Patrick A. C. Gane, Matthias Buri, René Vinzenz Blum, Jacques Mongoin
  • Polymers produced by using sulphur compounds in the form of transfer agents for controlled radical polymerisation of acrylic acid and the use thereof
    Patent number: 8053497
    Abstract: The invention concerns the polymers obtained by the use of sulfur compounds in a process for controlled radical polymerization in water of acrylic acid and/or acrylic acid with hydrosoluble monomers. It concerns also their uses as dispersant agents or agents to aid grinding and/or co-grinding of mineral matters in aqueous suspensions, and as dispersant agents incorporated directly in aqueous formulations containing mineral matters. Finally, the invention concerns the formulations of mineral matters obtained in this manner.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 8, 2011
    Assignee: Coatex S.A.S.
    Inventors: Jean-Marc Suau, Christian Jacquemet
  • USE OF ACRYLIC POLYMERS NEUTRALIZED BY LITHIUM AS DISPERSING AGENTS OR GRINDING AID AGENTS OF MINERAL MATERIALS IN AN AQUEOUS MEDIUM
    Publication number: 20110263774
    Abstract: The invention pertains to the use of a homopolymer of acrylic acid or a copolymer of acrylic acid with a water-soluble monomer, as a dispersing agent or grinding aid agent in a method for manufacturing an aqueous suspension of mineral materials through dispersion and/or grinding, characterized in that the carboxylic groups of said agent are fully or partially neutralized by the lithium ion and in that it exhibits a viscosity index of between 0.01 and 0.08.
    Type: Application
    Filed: December 8, 2009
    Publication date: October 27, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jacques Mongoin, Christian Jacquemet
  • Use of a mineral-material steric dispersing agent in water, aqueous dispersion thus obtained and use thereof in paper making
    Patent number: 8038843
    Abstract: A method for manufacturing a sheet of paper from a pulp and a sheet of paper obtained by the present method, wherein said pulp comprises a mixture of natural and/or synthetic fibers, water, and at least one aqueous suspension and/or dispersion comprising at least one mineral material, wherein said dispersion or suspension comprises, as a steric dispersing agent of at least one mineral material, at least one copolymer comprising at least one vinylic monomer, at least one non-ionic monomer, or a mixture of several monomers having formula (I) in the present method, wherein said agent limits the presence of divalent ions in the aqueous phase and said agent is not a chelating agent.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: October 18, 2011
    Assignee: Coatex S.A.S.
    Inventors: Olivier Guerret, Francois Dupont, Jacques Mongoin
  • Use of a comb polymer with at least one polyalkylene oxide grafted function as a mineral charge compatibility agent for chlorinated thermoplastic materials
    Patent number: 8039571
    Abstract: The invention firstly concerns the use as a compatibilizing agent, in a process to manufacture a chlorinated thermoplastic resin filled with a mineral material, of a comb polymer having at least one anionic monomer with ethylenic unsaturation, to which is grafted at least one polyalkylene oxide group. The invention also concerns the chlorinated thermoplastic materials thus obtained, which have an improved compatibility between the filler and the chlorinated thermoplastic resin, whilst reducing the quantity of compatibilizing agents as used in the chlorinated and filled thermoplastic materials according to the prior art, where the said compatibilizing agents used in the prior art were essentially fatty acids, and more specifically stearic acid or its salts.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 18, 2011
    Assignee: Coatex S.A.S.
    Inventors: Olivier Guerret, Patrick Trouve, Jacques Mongoin
  • USE OF A STYRENE LATEX 100 NM IN SIZE AS A RHEOLOGICAL AGENT IN A PAPER COATING, THE PAPER COATING, AND THE METHOD FOR OBTAINING IT
    Publication number: 20110251307
    Abstract: The invention relates to coating slip including latex comprising styrene and with a particle size centered around 100 nm, the use of latex as an agent for reducing the low shear gradient viscosity and increasing the low shear gradient viscosity, and methods thereof.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 13, 2011
    Applicant: COATEX S.A.S.
    Inventors: Renaud Souzy, Francois Dupont
  • Grinding aid of mineral materials in aqueous suspension, resulting aqueous suspensions and uses thereof
    Patent number: 8017679
    Abstract: The invention concerns the use of hydrosoluble homopolymers and/or copolymers of acrylic/or methacrylic acid with one or more acrylic, vinyl or ally monomers as an aid to the grinding of mineral particles in aqueous suspension, providing them by their use particular optical properties. The invention also concerns the said aqueous suspensions and their uses in the fields of paper and paint.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: September 13, 2011
    Assignee: Coatex S.A.S.
    Inventors: Xueping Qiu, Jacques Mongoin, Christian Jacquemet