Patents Assigned to Coatex
  • Publication number: 20210178350
    Abstract: The invention relates to a process for preparing a dispersion of a lipophilic compound in a continuous hydrophilic phase, the morphology of which is submicronic. During the preparation of this dispersion, there is applied, by means of a device which produces a shearing gradient less than 5000 s?1, a shear stress from 100 to 5000 Pa during the addition of the lipophilic compound in the continuous phase which comprises a rheology-modifying compound selected from anionic copolymers, preferably an anionic polymer, in particular an ASE polymer or a HASE polymer. The dispersed particles of the lipophilic compound are nanometric particles whose size is less than 1 ?m. The dispersion, particularly in the form of an emulsion, can be used in numerous fields.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 17, 2021
    Applicant: COATEX
    Inventors: Clementine CHAMPAGNE, Jean-Marc SUAU
  • Publication number: 20210171723
    Abstract: The invention concerns a method for preparing an aqueous mineral suspension from an aqueous metal ore residue into which a polymer (P) is introduced having a molecular mass Mw measured by GPC ranging from 2,000 to 20,000 g/mol and prepared by radical polymerisation of at least one anionic monomer (M). The invention also concerns the suspension produced, the Brookfield viscosity of which is lower than 1,800 mPa·s or the yield point of which is lower than 80 Pa.
    Type: Application
    Filed: June 5, 2019
    Publication date: June 10, 2021
    Applicant: COATEX
    Inventors: Mehdi BOUZID, Christian JACQUEMET, Benoit MAGNY, Jacques MONGOIN
  • Publication number: 20210171722
    Abstract: A method can prepare an aqueous mineral suspension from an aqueous metal ore residue into which there is introduced a polymer (P) having a molecular weight Mw measured by GPC of from 100,000 to 3.106 g/mol and prepared by free radical polymerization of at least one anionic monomer (m). The suspension produced may have a Brookfield viscosity greater than 2,000 mPa·s and/or a flow threshold of greater than 40 Pa.
    Type: Application
    Filed: June 5, 2019
    Publication date: June 10, 2021
    Applicant: COATEX
    Inventors: Mehdi BOUZID, Christian JACQUEMET, Benoit MAGNY, Jacques MONGOIN
  • Publication number: 20210171349
    Abstract: The invention relates to a method for the industrial preparation of phosphoric acid from an aqueous suspension comprising water and particles of at least one phosphate material dispersed in the presence of at least one additive of the anionic polymer type. Phosphoric acid is obtained by treating this suspension with at least one strong acid. The polymer is obtained by polymerization reaction of at least one acid selected from acrylic acid, methacrylic acid and salts thereof. The invention relates to the use of this anionic polymer as well as the method for improving the rheology of the suspension and the hydrodynamics of the reaction medium in which the reactions for the manufacture of phosphoric acid take place.
    Type: Application
    Filed: November 9, 2018
    Publication date: June 10, 2021
    Applicants: Coatex, OCP SA
    Inventors: Driss Dhiba, Benoît Magny, Hamid Mazouz, Céline Methivier, Jacques Mongoin
  • Publication number: 20210170309
    Abstract: The invention relates to a method for controlling the sedimentation of an aqueous mineral suspension of a mining derivative by means of the gravimetric concentration of the aqueous suspension in the presence of a flocculating agent and a polymer (P) which has a GPC-measured molecular mass Mw of between 2000 and 20000 g/mol and is prepared using at least one free radical polymerisation reaction of at least one anionic monomer (M). The invention also relates to the resulting suspension, which has a Brookfield viscosity of less than 1 800 mPa·s or a yield point of less than 80 Pa.
    Type: Application
    Filed: June 5, 2019
    Publication date: June 10, 2021
    Applicant: COATEX
    Inventors: Mehdi BOUZID, Benoit MAGNY, Jacques MONGOIN
  • Publication number: 20210161775
    Abstract: The invention relates to a cosmetic composition in the form of an emulsion which is water-resistant due to the use of an emulsifying polymer. This polymer is prepared by polymerization of an anionic monomer and a C1-C7 unsaturated carboxylic acid ester. The cosmetic composition according to the invention is free of film-forming agent and surfactant compound. The invention also relates to the preparation and the use of this cosmetic composition.
    Type: Application
    Filed: March 28, 2019
    Publication date: June 3, 2021
    Applicant: COATEX
    Inventor: Clémentine CHAMPAGNE
  • Patent number: 11021566
    Abstract: The invention relates to a rheology-modifying urethane compound. The compound comprising urethane functions of the invention can be prepared according to a method in several steps which use different compounds comprising isocyanate functions. For the preparation of the urethane compound according to the invention, a monoisocyanate compound, in particular a monoisocyanate compound resulting from the separate condensation of an asymmetric diisocyanate compound with a reactive compound, is reacted with an alkylene glycol compound in the presence of a polyisocyanate compound. The invention also provides coating compositions comprising mineral particles and a urethane compound according to the invention.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 1, 2021
    Assignee: COATEX
    Inventors: Yves Matter, Denis Ruhlmann, Jean-Marc Suau
  • Publication number: 20210155512
    Abstract: The invention relates to a method for preparing an aqueous suspension (S) of mineral particles of a metal ore, of a metal ore residue or of a metal to be recycled comprising a particular polymer (P) and recycle water originating from an aqueous metal ore residue, an aqueous metal ore suspension or an aqueous suspension of a metal to be recycled. The invention also relates to a method for controlling, improving or reducing the turbidity of the supernatant water originating from an aqueous suspension (S). The invention also provides an aqueous suspension (S).
    Type: Application
    Filed: June 5, 2019
    Publication date: May 27, 2021
    Applicant: COATEX
    Inventor: Mehdi BOUZID
  • Patent number: 10865365
    Abstract: The invention relates to the field of detergent compositions, in particular detergent compositions for automatic washing, especially for automatic dishwashing. Thus, the invention provides a phosphate-free detergent composition comprising at least one non-sulfonated nonionic surfactant compound and a non-sulfonated water-soluble copolymer prepared especially by polymerization reaction of acrylic or methacrylic acid, of an acrylic or methacrylic acid, itaconic acid or maleic acid ester and of a compound of formula (I): The invention also relates to the use of this non-sulfonated water-soluble copolymer as a scale-inhibiting agent or anti-spotting agent, and also to a cleaning process.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 15, 2020
    Assignee: COATEX
    Inventor: Yves Kensicher
  • Publication number: 20200377741
    Abstract: The invention relates to the field of marking hard surface substrates, in particular to the field of traffic paints. The invention thus provides an aqueous composition useful for marking hard surface substrates. The composition according to the invention comprises a binder and a pigment that is dispersed with a particular (meth)acrylic polymer. The invention also provides a method for preparing such a composition as well as a method for marking a hard surface substrate with such a composition.
    Type: Application
    Filed: January 14, 2019
    Publication date: December 3, 2020
    Applicant: COATEX
    Inventors: Alexandra FOGUTH, Lori HOWELL, Haksu LEE
  • Publication number: 20200370245
    Abstract: The invention relates to a paper coating slip composition comprising a copolymer of thickening acrylic acid, a mineral material in the form of particles, a binding agent, and water. The invention also relates to the use of said composition for the production of paper or cardboard, improving the water retention of the paper coating slip.
    Type: Application
    Filed: December 17, 2018
    Publication date: November 26, 2020
    Applicant: COATEX
    Inventors: Francis BONY, Clementine CHAMPAGNE, Francois DUPONT, Laurie PARRENIN, Jean-Marc SUAU
  • Publication number: 20200361774
    Abstract: The invention relates to a method for preparing an aqueous suspension of at least one phosphate material, comprising, dispersing, in water, particles of phosphate material in the presence of at least one additive of the anionic polymer of acrylic acid or of methacrylic acid type. The suspension according to the invention has a viscosity of less than 1500 mPa·s. The invention also relates to the conditioning of the phosphate material associated with the anionic polymer, for its subsequent treatment with at least one strong acid, for the industrial preparation of phosphoric acid.
    Type: Application
    Filed: November 9, 2018
    Publication date: November 19, 2020
    Applicants: Coatex, OCP SA
    Inventors: Driss Dhiba, Benoît Magny, Hamid Mazouz, Céline Methivier, Jacques Mongoin
  • Patent number: 10835475
    Abstract: The invention relates to the field of the production of aqueous compositions comprising rheology-modifying agents, in particular the production of aqueous cosmetic or detergent compositions having improved thickening and clarity properties and also good suspending properties. In particular, the invention relates to a rheology-modifying agent which is a copolymer obtained by polymerization of at least one cross-linking monomer with at least one anionic monomer comprising at least one polymerizable ethylenic unsaturation and at least one hydrophobic nonionic monomer comprising at least one polymerizable ethylenic unsaturation.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: November 17, 2020
    Assignee: COATEX
    Inventors: Clementine Champagne, Jean-Marc Suau
  • Publication number: 20200291239
    Abstract: The invention relates to a method for producing particles of mineral material comprising grinding of at least one mineral material in the presence of water. The grinding according to the invention is carried out in the presence of at least one polymer obtained by a radical polymerization reaction of a partial sodium salt of itaconic acid and partial decarboxylation of the polymer obtained followed by partial or total neutralization of the decarboxylated polymer. The invention also relates to an aqueous composition comprising particles of ground mineral material and such a polymer, in particular a mass-loading composition for the production of paper or a paper-coating-colour composition.
    Type: Application
    Filed: November 8, 2017
    Publication date: September 17, 2020
    Applicant: COATEX
    Inventors: Henri GRONDIN, Christian JACQUEMET, Benoit MAGNY
  • Publication number: 20200291152
    Abstract: The invention relates to the field of preparing aqueous dispersions of organic, organometallic or inorganic particles. In particular, the invention relates to the preparation of aqueous suspensions comprising organic, organometallic or inorganic particles and at least one particular copolymer obtained by polymerization of at least one acid and at least one compound or at least one ester derived from a particular acid, in the presence of water, at least one initiator compound and at least one activator compound, followed by total or partial neutralization by means of at least one compound chosen from alkali metal hydroxides, alkaline earth metal hydroxides, alkaline earth metal dihydroxides and mixtures thereof. The invention relates to such a particular copolymer having a low polydispersity index and weight-average molecular weight, the preparation process thereof and the use thereof, especially for the preparation of an aqueous paint composition.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 17, 2020
    Applicant: COATEX
    Inventors: Mehdi BOUZID, Clementine CHAMPAGNE, Benoit MAGNY, Jean-Marc SUAU
  • Publication number: 20200277431
    Abstract: The invention relates to the field involving the softening or lubricating of natural, synthetic or mixed textile fibres, as well as keratin fibres. The invention provides a softening composition, the rheology of which is controlled by means of a particular thickening agent. The invention also relates to the thickening agent, which is made from multiple isocyanate compounds.
    Type: Application
    Filed: December 14, 2018
    Publication date: September 3, 2020
    Applicant: COATEX
    Inventors: Yves KENSICHER, Benoit MAGNY, Yves MATTER, Jean-Marc SUAU
  • Publication number: 20200255669
    Abstract: The present invention relates to a method for producing mineral particles grinding a mineral material in the presence of a specific anionic polymer. The polymer used is obtained by means of polymerisation in the presence of sodium hypophosphite, disodium dipropionate trithiocarbonate and at least one radical-generating compound. The invention also relates to an aqueous composition comprising particles of ground mineral material and such a polymer, in particular a paper coating slip composition.
    Type: Application
    Filed: December 14, 2017
    Publication date: August 13, 2020
    Applicant: COATEX
    Inventors: Clementine CHAMPAGNE, Christian JACQUEMET, Benoit MAGNY, Jacques MONGOIN, Jean-Marc SUAU
  • Publication number: 20200181538
    Abstract: The invention concerns the field of detergent compositions, in particular detergent compositions for automatic washing, in particular for automatic dishwashing. Therefore, the invention provides a phosphate-free detergent composition comprising at least one non-sulfonated, non-ionic surfactant compound and a non-sulfonated water-soluble copolymer prepared, by polymerisation reaction, in the presence of at least one compound comprising at least one alcohol function, acrylic or methacrylic acid and a compound of formula (I): The invention also concerns the use of this non-sulfonated water-soluble copolymer as an anti-scaling agent or anti-drip agent, and a cleaning method.
    Type: Application
    Filed: June 13, 2018
    Publication date: June 11, 2020
    Applicant: COATEX
    Inventors: Yves KENSICHER, Jean-Marc SUAU
  • Publication number: 20200165367
    Abstract: The invention relates to an aqueous composition comprising a copolymer obtained by a particular polymerization reaction using an anionic monomer comprising a polymerizable olefinic unsaturation and a carboxylic acid function and a monomer of formula (I): the invention also relates to this copolymer per se, and to a method for the preparation thereof and to the use thereof as a superplasticizer.
    Type: Application
    Filed: July 25, 2018
    Publication date: May 28, 2020
    Applicant: COATEX
    Inventors: Michel MELAS, Laurie PARRENIN, Jean-Marc SUAU
  • Patent number: 10550515
    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: Grant
    Filed: May 30, 2016
    Date of Patent: February 4, 2020
    Assignee: COATEX
    Inventors: Francois Dupont, Jerome Blanc