Patents Assigned to Coatex
  • Method for polymerizing meth(acrylic) acid in a solution, polymer solutions obtained and uses thereof
    Patent number: 9957338
    Abstract: The present invention relates to a novel method for solvent-free preparation of a polymer of (meth)acrylic acid in solution, said polymer having a molecular weigh of less than 8,000 g/mol and a polydispersity index (PI) of 2 to 5 by radical polymerization.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: May 1, 2018
    Assignee: COATEX
    Inventor: Jean-Marc Suau
  • (Meth)acrylic comb polymer containing a (meth)acrylic ester as a dispersing and anti-defoaming agent in an aqueous suspension of calcium sulfate hemihydrate
    Patent number: 9950956
    Abstract: This invention relates to the use, in a foamy aqueous suspension of calcium sulfate hemihydrate, as an agent having the dual function of being a dispersing agent and an anti-defoaming agent, of a comb polymer made up of (meth)acrylic acid, a monomer which is an alcoxy- or hydroxy-polyalkylene glycol, and an ester of (meth)acrylic acid. It also relates to the aqueous suspensions thereby formed, and the plasterboard manufactured from 2 sheets of paper containing a body resulting from the drying of said suspensions.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: April 24, 2018
    Assignee: COATEX
    Inventors: Jean-Marc Suau, Yves Kensicher
  • METHOD FOR DEINKING RECYCLED PAPER
    Publication number: 20180105983
    Abstract: A method for deinking recycled paper, including a pulping step, and then a flotation step, which includes introduction of at least one dispersant of the polyacrylate type, representing from 0.05 to 3.5 wt % of the mineral fillers of the recycled paper. A specific dispersant is used during the flotation step of the method for deinking recycled paper.
    Type: Application
    Filed: May 30, 2016
    Publication date: April 19, 2018
    Applicant: COATEX
    Inventors: Francois DUPONT, Jerome BLANC
  • Non-ionic associative thickeners containing cyclohexylol alkyls, formulations containing them and their uses
    Patent number: 9896533
    Abstract: The present invention concerns new associative thickeners of the HEUR type (Hydrophobically modified Ethylene oxide URethane) whose hydrophobic monomer is based on alkyl cyclohexylols. These are new polyurethanes that significantly thicken an aqueous formulation with a low, medium and high shear gradient. The invention also concerns the compositions containing them and their uses in different formulations such as aqueous paints.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: February 20, 2018
    Assignee: COATEX
    Inventors: Jean-Marc Suau, Denis Ruhlmann
  • Associative acrylic thickening agent containing polyglycerols and its use to increase the open time of thin or thick films
    Patent number: 9884968
    Abstract: The present invention relates to new acrylic associative thickening agents which, when polymerized in the presence of particular polyglycerols, ultimately result in an increase of the open time of the paint or of the thick coating in which they are incorporated. By so doing, painters and applicators will have more time to work the paint layers gradually or to correct imperfections such as paint droplets, traces of brushes and filling-knives.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: February 6, 2018
    Assignee: COATEX
    Inventors: Denis Ruhlmann, Jean-Marc Suau
  • NOVEL COPOLYMER AS A WATER-REDUCING AGENT IN A HYDRAULIC COMPOSITION AND USE OF COPOLYMERS FOR IMPROVING THE EARLY MECHANICAL STRENGTH OF A HYDRAULIC COMPOSITION
    Publication number: 20180002231
    Abstract: Novel copolymers obtained by polymerisation a mixture of monomers comprising: at least one anionic monomer (a) comprising a polymerisable unsaturated function and a carboxylic group; and at least one monomer (b) of formula (I): H2C?C(—R1)-(CH2)p—O—[(EO)n-(PO)m]-H??(I) where [(EO)n-(PO)m] represents a polyalkoxylated chain consisting of ethoxylated units EO and propoxylated units PO, distributed into blocks, alternating or statistical, the molar proportion of the ethoxylated units in the polyalkoxylated chain (n)/(m+n) being greater than or equal to 70% and strictly less than 90%. In addition, hydraulic composition, for example concrete compositions, comprising such copolymers, and the use of said copolymers as water-reducing agents in hydraulic compositions and for increasing the early mechanical strength of a hydraulic composition.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 4, 2018
    Applicant: COATEX
    Inventors: David PLATEL, Benoit MAGNY, Jean-Marc SUAU, Clementine CHAMPAGNE
  • POLYMERIC MICROPARTICLES
    Publication number: 20170368524
    Abstract: The present invention relates to microparticles having a polymeric shell, and also to aqueous dispersions comprising these microparticles. The microparticles having a polymeric shell comprise: a) at least one acrylic copolymer of HASE type; b) at least one solid/liquid phase change material having a phase transition temperature Tf1 of greater than or equal to 20° C.; c) at least one solid/liquid phase change material having a phase transition temperature Tf2 of less than or equal to 30° C., provided that Tf2 is less than Tf1; d) optionally at least one active agent.
    Type: Application
    Filed: February 17, 2016
    Publication date: December 28, 2017
    Applicant: COATEX
    Inventors: Clementine CHAMPAGNE, Jean-Marc SUAU
  • THICKENING AGENT FOR AQUEOUS SYSTEMS, FORMULATIONS CONTAINING SAME AND USES THEREOF
    Publication number: 20170369717
    Abstract: The present invention relates to novel associative thickeners belonging to the category of the HEUR (Hydrophobically modified Ethoxylated URethanes), and also intermediate aqueous formulations containing such thickeners, and the final compositions, for example paint, lacquer, varnish or paper coating colour compositions.
    Type: Application
    Filed: December 18, 2015
    Publication date: December 28, 2017
    Applicant: COATEX
    Inventor: Denis RUHLMANN
  • 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
    Patent number: 9850374
    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: Grant
    Filed: October 9, 2014
    Date of Patent: December 26, 2017
    Assignee: COATEX
    Inventors: David Platel, Jean Moro, Olivier Guerret
  • DISPERSION AND/OR GRINDING AID AGENTS OF KAOLIN IN AQUEOUS SUSPENSION, AQUEOUS SUSPENSIONS OBTAINED AND USES THEREOF
    Publication number: 20170355856
    Abstract: The present invention relates to a ternary mixture consisting of at least one homopolymer or copolymer of (meth)acrylic acid, partially or completely neutralized with sodium, with potassium, with lithium and/or with an amine, at least one solution of silicate or metasilicate chosen from the group consisting of a sodium silicate of formula Na2O.nSiO2 (with n varying between 1 and 4), sodium metasilicate Na2SiO3, a potassium silicate K2O.nSiO2 (with n varying between 1 and 4), potassium metasilicate K2SiO3 and a mixture of these compounds, and at least one base, as dispersion and/or grinding aid agents of kaolin in aqueous suspension.
    Type: Application
    Filed: December 1, 2015
    Publication date: December 14, 2017
    Applicant: COATEX
    Inventors: Jacques MONGOIN, Christian JACQUEMET, Yves MATTER, Jean-Marc SUAU
  • METHOD FOR THE POLYMERISATION OF (METH)ACRYLIC ACID IN SOLUTION
    Publication number: 20170349681
    Abstract: The present invention relates to the novel method for the preparation of a polymer of (meth)acrylic acid in aqueous solution, said polymer having a molecular mass of less than 6,500 g/mol, as measured by SEC, using a compound of copper carbonate type or one of its derivatives and a compound of formula (I): according to which: X represents Na, K or H and R represents an alkyl chain comprising from 1 to 5 carbon atoms.
    Type: Application
    Filed: October 12, 2015
    Publication date: December 7, 2017
    Applicant: COATEX
    Inventors: Jean-Marc SUAU, Clementine CHAMPAGNE
  • Method for solution-polymerising (meth)acrylic acid
    Patent number: 9803038
    Abstract: The present invention relates to a novel method for preparing a (meth)acrylic acid polymer in an aqueous solution, said polymer having a molecular mass lower than 8000 g/mol, for example using copper carbonate and iron sulphate (or the derivatives thereof).
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: October 31, 2017
    Assignee: COATEX
    Inventor: Jean-Marc Suau
  • CONTINUOUS ESTERIFICATION AND/OR AMIDIFICATION METHOD, WITHOUT ORGANIC SOLVENT, OF AN ACID HOMOPOLYMER OR COPOLYMER
    Publication number: 20170297255
    Abstract: The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170° C.
    Type: Application
    Filed: December 7, 2015
    Publication date: October 19, 2017
    Applicant: COATEX
    Inventors: Jean-Marc SUAU, David PLATEL, Clementine CHAMPAGNE, Yves MATTER
  • Copolymers in cosmetic compositions
    Patent number: 9775795
    Abstract: The present invention concerns the use of a specific copolymer to homogenize compositions that include coloring pigments and/or pearlescent pigments and film-forming polymers, as well as the cosmetic compositions containing said copolymer.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: October 3, 2017
    Assignee: COATEX
    Inventors: Renaud Souzy, Yves Kensicher, Jean-Marc Suau, Olivier Guerret
  • Aqueous lime slurry, preparation process and uses
    Patent number: 9757685
    Abstract: Preparation of aqueous slurries of calcium dihydroxide. Preparation of aqueous suspensions of calcium hydroxide.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: September 12, 2017
    Assignee: COATEX
    Inventors: Fabrizio Belli, Jacques Mongoin, Angelo Berlendis
  • Use of a polymeric emulsion for the surface treatment of particles of mineral matter
    Patent number: 9745475
    Abstract: The present invention relates to the use of a new polymeric aqueous emulsion for surface treating particles of mineral matter.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: August 29, 2017
    Assignees: COATEX, OMYA INTERNATIONAL AG
    Inventors: Denis Ruhlmann, Olivier Guerret, Jacques Mongoin, Joe McJunkins, Djillali Foual, Marc Feller, Samuel Rentsch
  • METHOD FOR THE CONTINUOUS PRODUCTION OF ANIONIC POLYMERS USING RADICALS
    Publication number: 20170240668
    Abstract: The invention relates to a novel method for the continuous production of anionic polymers by radical polymerization. The polymers produced by said method have a controlled molecular weight.
    Type: Application
    Filed: December 17, 2015
    Publication date: August 24, 2017
    Applicant: COATEX
    Inventors: Jean-Marc SUAU, Yves MATTER, Dominique PEYCELON, Jean-Luc DUBOIS
  • Polishing pad
    Patent number: 9707663
    Abstract: A polishing pad is provided with a compression elastic modulus of 0.17 MPa or more and 0.32 MPa or less produced by preparing a nonwoven fabric formed of bundles of ultrafine fibers with an average monofilament diameter of 3.0 ?m or more and 8.0 ?m or less, preparing a polishing pad base by impregnating the nonwoven fabric with a polyurethane based elastomer in an amount of 20 mass % or more and 50 mass % or less relative to the mass of the polishing pad base, and laminating the polishing pad base with a porous polyurethane layer containing wet-solidified polyurethane as primary component which has openings with an average opening diameter of 10 ?m or more and 90 ?m or less in its surface to serve as polishing surface layer.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: July 18, 2017
    Assignees: Toray Industries, Inc., Toray Coatex Co., Ltd.
    Inventors: Kuniyasu Shiro, Masaharu Wada, Hiroyasu Kato, Hajime Nishimura, Satoshi Yanagisawa, Yukihiro Matsuzaki
  • FABRIC-SOFTENING COMPOSITION COMPRISING AN HEUR THICKENER
    Publication number: 20170198238
    Abstract: The present invention relates to a fabric-softening composition, comprising a cationic fabric softening agent and a thickening polyurethane resulting from the condensation: a) of at least one compound of formula (I): R—[(OE)m-(OP)n—(OB)p]—OH ??(I) in which: R is a saturated or unsaturated, linear or branched carbon chain, containing from 17 to 24 carbon atoms, [(OE)m-(OP)n—(OB)p] represents an alkoxyl chain formed from alternating or statistical alkoxyl units, distributed in blocks, chosen from ethoxyl units OE, propoxyl units OP and butoxyl units OB and m, n and p represent, independently of each other, 0 or an integer ranging between 1 and 30, the sum of m, n and p being between 20 and 30, b) of at least one polyol, for example of at least one poly(alkylene glycol) and c) of at least one polyisocyanate.
    Type: Application
    Filed: July 16, 2015
    Publication date: July 13, 2017
    Applicant: COATEX
    Inventors: Yves KENSICHER, Yves MATTER, Jean-Marc SUAU
  • Use of formulations containing glycerol as a dry grinding aid agent of mineral matter
    Patent number: 9700895
    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: Grant
    Filed: March 20, 2014
    Date of Patent: July 11, 2017
    Assignee: COATEX
    Inventors: Murielle Guillot, Jacques Mongoin, Olivier Guerret