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    Copolymer having thickening and suspension properties
    1.
    发明授权
    Copolymer having thickening and suspension properties 有权

    公开(公告)号：US11208515B2

    公开(公告)日：2021-12-28

    申请号：US16304312

    申请日：2017-06-02

    Applicant: COATEX

    Inventor： Herve Cavalie ,  Clementine Champagne ,  Benoit Magny ,  Jean-Marc Suau ,  Christophe Verge

    IPC: C08F220/18 ,  C08F265/06 ,  A61K8/81 ,  A61Q5/02 ,  A61Q19/10

    Abstract: (EN) The invention relates to the field involved in the production of aqueous compositions comprising rheology modifying agents, in particular the production of aqueous detergent or cosmetic compositions having improved, thickening and clarity properties, as well as good suspension properties. In particular, the invention relates to a rheology modifying agent which is a copolymer obtained by means of polymerisation of at least one crosslinking monomer with at least one anionic monomer comprising at least one polymerisable ethylenic unsaturation and at least one hydrophobic non-ionic monomer comprising at least one polymerisable ethylenic unsaturation.

    Method of milling minerals in the presence of a poly (itaconate)
    2.
    发明授权
    Method of milling minerals in the presence of a poly (itaconate) 有权

    公开(公告)号：US11578214B2

    公开(公告)日：2023-02-14

    申请号：US16342431

    申请日：2017-11-08

    Applicant: COATEX

    Inventor： Henri Grondin ,  Christian Jacquemet ,  Benoit Magny

    IPC: C09C3/04 ,  C08F2/38 ,  C08F8/44 ,  C08F222/02 ,  C08K3/32 ,  D21D99/00 ,  D21H19/64

    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.

    Multiphasic polymer as a thickening and suspending agent
    3.
    发明授权
    Multiphasic polymer as a thickening and suspending agent 有权

    公开(公告)号：US10470994B2

    公开(公告)日：2019-11-12

    申请号：US15532299

    申请日：2015-10-30

    Applicant: COATEX

    Inventor： Clementine Champagne ,  Jean-Marc Suau ,  Benoit Magny ,  Delphine Bony ,  Yves Kensicher

    IPC: A61K8/81 ,  C08F220/06 ,  C08F222/10 ,  C08F265/06 ,  C08L33/08 ,  A61Q5/02 ,  A61Q19/10 ,  A61K8/91 ,  C11D3/37

    Abstract: The invention relates to multiphasic polymers comprising from 45% to 95% by weight of a first polymer P1 and from 5% to 55% by weight of a second polymer P2, said polymers P1 and P2 being of distinct compositions, said polymer P1 being obtained by polymerization from a mixture of monomers comprising at least one anionic monomer (a) having a polymerizable vinyl group, at least one nonionic hydrophobic monomer (b) having a polymerizable vinyl group, at least one cross-linking monomer (c) and at least one associative monomer (d) having a polymerizable vinyl group and a hydrophobic hydrocarbon chain and said polymer P2 being obtained by polymerization from a mixture of monomers comprising at least one anionic monomer (a′) having a polymerizable vinyl group, at least one nonionic hydrophobic monomer (b′) having a polymerizable vinyl group and at least one cross-linking monomer (c′). It also relates to a method for the preparation of these polymers, to aqueous compositions comprising them and to their use as thickening and suspending agents.

    Water-soluble copolymer and use thereof as dispersant for suspension of particles
    10.
    发明授权
    Water-soluble copolymer and use thereof as dispersant for suspension of particles 有权

    公开(公告)号：US11447588B2

    公开(公告)日：2022-09-20

    申请号：US16088225

    申请日：2017-03-29

    Applicant: COATEX

    Inventor： Mehdi Bouzid ,  Clementine Champagne ,  Benoit Magny ,  Jean-Marc Suau

    IPC: C08F220/06 ,  C08F220/20 ,  C09D133/02 ,  C09D133/08 ,  C08K3/22 ,  C09D5/02 ,  C08F220/28 ,  C09D133/10 ,  C09D133/06

    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.

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