Patents Assigned to Coatex
  • 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
  • ASSOCIATIVE ACRYLIC EMULSION CONTAINING AN OXO ALCOHOL-BASED MONOMER, ITS MANUFACTURING METHOD, AND METHOD FOR THICKENING AN AQUEOUS FORMULATION USING THIS EMULSION
    Publication number: 20110213071
    Abstract: The present invention pertains to particular HASE rheology modifiers: they are aqueous emulsions whose solids content may reach about 25%, based on acrylic thickeners having an associative monomer functionalized by an oxo alcohol based hydrophobic group. Their method of synthesis, as well as a method for thickening an aqueous formulation containing them, also constitute objectives of the present invention.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, Denis Ruhlmann
  • ASSOCIATIVE MONOMER WITH AN OXO ALCOHOL BASE, AN ACRYLIC POLYMER CONTAINING THIS MONOMER, USE OF THE SAID POLYMER AS A THICKENING AGENT IN AN AQUEOUS FORMULATION, FORMULATION OBTAINED
    Publication number: 20110213072
    Abstract: A HASE-type rheology modifier containing an associative monomer which is functionalised by a hydrophobic group of an oxo alcohol base is provided. A method to prepare the HASE rheology modifier and its use in a method to thicken and create a Newtonian rheological profile in an aqueous formulation such as a water based paint is also provided.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc Suau, Denis Ruhlmann
  • AQUEOUS SOLUTION OF (METH)ACRYLIC FLUID COMB-BRANCHED POLYMERS WITH A SOLID CONTENT GREATER THAN 60%, MANUFACTURING METHOD AND USE AS A PLASTICIZING AGENT
    Publication number: 20110207855
    Abstract: The present invention pertains to an aqueous solution of comb-branched polymers, having a (meth)acrylic skeleton functionalized by side-chains with hydrophilic alcoxy- or hydroxy-polyalkylene glycol functions, said solution remaining stable and workable at dry solids content levels greater than 60% of its weight. The invention also pertains to a method for manufacturing such solutions, as well as their use as a plasticizing agent, and hydraulic binder-based compositions containing them.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, David Platel
  • USE AS AN AGENT IMPROVING THE WORKABILITY OF AN AQUEOUS FORMULATION WITH A HYDRAULIC BINDER BASE, OF A (METH)ACRYLIC COMB-BRANCHED COPOLYMER AND AN ASSOCIATIVE ACRYLIC THICKENER
    Publication number: 20110207856
    Abstract: The present invention pertains to the use, in the manufacture of an aqueous formulation with a hydraulic binder base, of a combination of at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophilic group, and at least one ASE acrylic polymer. This results in improving the workability of said formulation, without causing a segregation phenomenon.
    Type: Application
    Filed: November 25, 2009
    Publication date: August 25, 2011
    Applicant: COATEX S.A.S.
    Inventors: David Platel, Jean Moro, Olivier Guerret
  • TRITHIOCARBONATE DERIVATIVES AND THE USE THEREOF IN THE FORM OF TRANSFER AGENTS FOR ACRYLIC ACID CONTROLLED RADICAL POLYMERISATION
    Publication number: 20110186773
    Abstract: The invention relates to novel sulphur compounds, to the production thereof by a method carried out in an aqueous medium and the use thereof in the form of transfer agents in a method for controlled radical polymerisation of acrylic acid and/or acrylic acid with water-soluble monomers in water. The thus obtained polymers are usable in the form of dispersing agents or grinding aid agents and/or aid agents for combined grinding of mineral materials in an aqueous suspension and in the form of dispersing agents directly incorporated into aqueous formulations containing mineral materials.
    Type: Application
    Filed: April 12, 2011
    Publication date: August 4, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, Christian JACQUEMET
  • USE OF STRUCTURED WATER-SOLUBLE POLYMERS OBTAINED BY CONTROLLED RADICAL POLYMERIZATION AS A DISPERSANT AND AGENT FOR ASSISTING IN THE GRINDING OF MINERAL MATERIALS
    Publication number: 20110160348
    Abstract: The invention relates to the use, as a dispersant and/or a grinding aid agent for pigments and/or mineral fillers in aqueous suspension, of a water soluble polymer with a controlled structure obtained by a controlled free radical polymerization process putting into practice a particular alkoxyamine as a polymerization initiator.
    Type: Application
    Filed: November 3, 2010
    Publication date: June 30, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc Suau, Christian Jacquemet, Yves Kensicher
  • USE OF FORMULATIONS CONTAINING GLYCEROL AS A DRY GRINDING AID AGENT OF MINERAL MATTER
    Publication number: 20110133006
    Abstract: The invention consists in the use, as a dry grinding aid agent of a mineral matter chosen from among the dolomites, talc, titanium dioxide, alumina, kaolin and calcium carbonate, the function of which is to reduce the specific grinding energy and to increase the grinding capacity, of formulations containing glycerol.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 9, 2011
    Applicant: COATEX S.A.S.
    Inventors: Murielle GUILLOT, Jacques Mongoin, Olivier Guerret
  • USE OF A WEAKLY IONIC ACRYLIC POLYMER IN THE SYNTHESIS OF PRECIPITATED CALCIUM CARBONATE
    Publication number: 20110135560
    Abstract: The invention consists in the use, in a method to manufacture a mineral matter, notably a precipitated calcium carbonate, of a polymer consisting of at least one vinylic monomer chosen from among acrylic or methacrylic acid, acrylamide, methacrylamide or a cationic monomer, or their blends, and at least one non-ionic monomer. The use of this polymer enables the carbonation time of the PCC to be reduced, without however impairing its crystallographic structure and its granulometric characteristics.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 9, 2011
    Applicant: COATEX S.A.S.
    Inventors: Murielle Guillot, Yves Kensicher
  • Trithiocarbonate derivatives and the use thereof in the form of transfer agents for acrylic acid controlled radical polymerisation
    Patent number: 7956211
    Abstract: The invention relates to novel sulphur compounds, to the production thereof by a method carried out in an aqueous medium and the use thereof in the form of transfer agents in a method for controlled radical polymerization of acrylic acid and/or acrylic acid with water-soluble monomers in water. The thus obtained polymers are usable in the form of dispersing agents or grinding aid agents and/or aid agents for combined grinding of mineral materials in an aqueous suspension and in the form of dispersing agents directly incorporated into aqueous formulations containing mineral materials.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: June 7, 2011
    Assignee: Coatex S.A.S.
    Inventors: Jean-Marc Suau, Christian Jacquemet
  • USE AS A THICKENING AGENT OF SALINE AQUEOUS FORMULATIONS OF A WATER-SOLUBLE ACRYLIC COPOLYMER, WHICH IS CROSSLINKED AND HYDROPHOBICALLY MODIFIED
    Publication number: 20110112256
    Abstract: The invention consists in the use, as a thickening agent of an aqueous formulation which is, notably, salt-rich, of a water-soluble or alkali-soluble copolymer consisting of (by weight): a) 30% to 45% of (meth)acrylic acid, b) 50% to 60% of acrylamide and/or of N-methylol and/or of an acrylic ester, c) 2% to 10% of a hydrophobic monomer of formula R1—(R2O)m—R3, in which: R1 designates a polymerisable unsaturated group, R2O designates an alkylene oxide group having 1 to 6 carbon atoms, m is an integer of between 20 and 50, R3 designates a linear alkyl chain comprising at least 16 and at most 26 carbon atoms, d) 0.1% to 4% of at least one cross-linking agent, which is preferentially ethyleneglycoldimethacrylate (EDMA).
    Type: Application
    Filed: June 9, 2009
    Publication date: May 12, 2011
    Applicant: COATEX S.A.S.
    Inventors: Yves Kensicher, Jean-Marc Suau
  • USE OF (METH)ACRYLIC POLYMERS IN A METHOD FOR MANUFACTURE OF AN AQUEOUS SUSPENSION OF CALCIUM CARBONATE
    Publication number: 20110092629
    Abstract: A method including first step grinding, in aqueous media of natural calcium carbonate, an acrylic polymer having a molecular weight of between 8,000 g/mole and 15,000 g/mole and a molar content of less than 20% of polymeric chains of molecular weight less than 3,000 g/mole and second, optionally concentrating, leading to an aqueous suspension with an increased slope factor, which improves the opacity of the coated paper produced from such a suspension.
    Type: Application
    Filed: June 16, 2009
    Publication date: April 21, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jacques Mongoin, Christian Jacquemet, Jean-Marc Suau
  • METHOD FOR BURNING COAL INVOLVING IMPLEMENTING AN ABSORBENT AGENT IN AN AQUEOUS DISPERSION, ASHES OBTAINED, AND USES THEREOF
    Publication number: 20110092617
    Abstract: The invention consists of a process for manufacturing ashes from the combustion of coal, this process comprising at least one step of bringing the coal into contact with an absorbent agent on the one hand, this absorbent agent being, on the other hand, contained in an aqueous phase in the presence of a (meth)acrylic dispersant, preferably a (meth)acrylic comb polymer. Thus the emissions of carbon dioxide and likewise the compounds based on sulphur, nitrogen or mercury which result from the combustion of coal are effectively combated.
    Type: Application
    Filed: May 6, 2009
    Publication date: April 21, 2011
    Applicant: COATEX S.A.S.
    Inventor: Yves Kensicher
  • USE OF ALPHA-OLEFIN OR GLYCIDYL ETHER EPOXY-BASED POLYETHERS AS THICKENING AGENTS FOR WATER-BASED PAINT IN THE PRESENCE OF SURFACE ACTIVE AGENTS
    Publication number: 20110092615
    Abstract: The object of the invention is the use, as a thickening agent for a water-based paint, of an aqueous solution of a polyether of at least one polyoxyalkylene and at least one alpha-olefin epoxy, and/or at least one aliphatic or aromatic glycidyl ether, and at least one surface active agent whose chemical formula is CxH2x+1—(OX)y—OH where OX designates an oxylakylated unit, and characterized in that: for the polyether, the molar ratio (polyoxyalkylene:alpha-olefin epoxy or aliphatic or aromatic glycidyl ether) is between (1:4) and (1:10), for the surface active agent, 6?x?12 and 5?y?12, said solution exhibits a mass ratio (polyether/surface active agent) of between 2.0 and 0.5, and exhibits a water content of 30% to 75% of its total weight. Another object is the paint containing such a thickening system.
    Type: Application
    Filed: June 4, 2009
    Publication date: April 21, 2011
    Applicant: COATEX S.A.S.
    Inventors: Denis Ruhlmann, Jean-Marc Suau
  • POLYCOSANOL-BASED ASSOCIATIVE MONOMERS, CORRESPONDING ASSOCIATIVE THICKENING AGENTS AND THEIR USES
    Publication number: 20110065836
    Abstract: The present invention relates to new associative monomers, terminated by a hydrophobic chain with a base of polycosanols, which can be bio-resourced raw materials, and notably of octacosanol. It also concerns the HASE-type associative copolymers manufactured from these monomers, from (meth)acrylic acid and from an ester of one of these acids. The invention also concerns the use of these copolymers as thickening agents for water-based formulations.
    Type: Application
    Filed: July 27, 2010
    Publication date: March 17, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc Suau, Denis Ruhlmann
  • CARDANOL-BASED ASSOCIATIVE POLYURETHANES, CORRESPONDING ASSOCIATIVE THICKENERS AND USES THEREOF
    Publication number: 20110060101
    Abstract: New associative polyurethanes which are manufactured with cardanol which is potentially oxyethylated. Use of these polyurethanes as thickening agents for aqueous formulations.
    Type: Application
    Filed: August 19, 2010
    Publication date: March 10, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc SUAU, Denis Ruhlmann
  • USE OF AN ACRYLIC DISPERSING AGENT - ASSOCIATIVE THICKENER PAIR IN AN ALKIDE PAINT FOR IMPROVING THE RETENTION OF ITS BRIGHTNESS LEVEL
    Publication number: 20110046280
    Abstract: The invention consists of the use, in an alkide resin formulation in an aqueous phase, of a dispersing agent/thickener pair: the dispersing agent is a copolymer of (meth)acrylic acid with an oxyalkylated monomer possessing a polymerizable function and terminated by hydrogen or an alkyl group having from 1 to 4 carbon atoms, the thickener is an associative thickener containing at least one hydrophobic group which is a polystyrylphanyl, preferentially chosen from among distyrylphenyl, tristyrylphenyl, and mixtures thereof, and which is very preferentially tristyrylphenyl. This combination makes it possible to improve the brightness level retention of the paint film over time, while ensuring that the aqueous formulation has the desired rheology.
    Type: Application
    Filed: April 29, 2009
    Publication date: February 24, 2011
    Applicant: COATEX S.A.S.
    Inventors: Denis Ruhlmann, Jean-Marc Suau
  • POLYMERS PRODUCED BY USING SULPHUR COMPOUNDS IN THE FORM OF TRANSFER AGENTS FOR CONTROLLED RADICAL POLYMERISATION OF ACRYLIC ACID AND THE USE THEREOF
    Publication number: 20110033558
    Abstract: The invention concerns the polymers obtained by the use of sulphur compounds in a process for controlled radical polymerisation 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: Application
    Filed: October 21, 2010
    Publication date: February 10, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc Suau, Christian Jacquemet
  • USE OF A MINERAL-MATERIAL STERIC DISPERSING AGENT IN WATER, AQUEOUS DISPERSION THUS OBTAINED AND USE THEREOF IN PAPER MAKING
    Publication number: 20100314061
    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: Application
    Filed: October 10, 2007
    Publication date: December 16, 2010
    Applicant: COATEX S.A.S.
    Inventors: Olivier Guerret, Francois Dupont, Jacques Mongoin