COPOLYMER HAVING VISCOELASTIC AND SUSPENSIVE PROPERTIES

    公开(公告)号:US20240010775A1

    公开(公告)日:2024-01-11

    申请号:US18253992

    申请日:2021-12-07

    申请人: COATEX

    摘要: A crosslinked, sulphonated, acrylic copolymer may be prepared from at least four monomers and in the absence of methacrylic acid. Such a copolymer may be prepared into an aqueous composition having viscoelastic and suspensive properties, including such a copolymer. Such copolymer(s) may include, in polymerized form: (a) an anionic monomer comprising acrylic acid and/or an acrylic acid oligomer, optionally in salt form; (b) a non-ionic monomer comprising styrene, a C1-C8 acrylate ester, and/or a C1-C8 methacrylate ester; (c) a compound comprising 2-acrylamido-2-methylpropane sulfonic acid, 2-sulfoethyl methacrylate, sodium methallyl sulfonate, and/or styrene sulfonate, optionally in salt form; (d) a cross-linking compound or compound including a first and a second polymerizable olefinic unsaturation, wherein the copolymer comprises no methacrylic acid

    Preparation of phosphoric acid
    4.
    发明授权

    公开(公告)号:US11702338B2

    公开(公告)日:2023-07-18

    申请号:US16762751

    申请日:2018-11-09

    申请人: Coatex OCP SA

    摘要: 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.

    PARTICLE SIZE CONTROL METHOD
    5.
    发明申请

    公开(公告)号:US20230053620A1

    公开(公告)日:2023-02-23

    申请号:US17759255

    申请日:2021-02-03

    申请人: COATEX

    摘要: The invention relates to a method for grinding phosphate rock in the presence of a particular anionic polymer having a molecular weight of between 1000 and 90000 g/mol, which makes it possible to control the extent (S) of the volume distribution of the particle size of obtained phosphate mineral particles. The invention also relates to a method for improving the production yield of a phosphate rock grinding method.

    Method of milling minerals in the presence of a poly (itaconate)

    公开(公告)号:US11578214B2

    公开(公告)日:2023-02-14

    申请号:US16342431

    申请日:2017-11-08

    申请人: COATEX

    摘要: 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.

    ANTI-UV COSMETIC COMPOSITION
    7.
    发明申请

    公开(公告)号:US20220409496A1

    公开(公告)日:2022-12-29

    申请号:US17764432

    申请日:2020-09-28

    申请人: COATEX

    摘要: Anti-UV cosmetic compositions in the form of an emulsion may include an emulsifying polymer which is prepared by polymerizing an anionic monomer and a C1-C7 ester of an unsaturated carboxylic acid. Such anti-UV cosmetic compositions may be prepared in the absence of a surfactant. The preparation and use of such anti-UV cosmetic compositions may provide anti-UV cosmetic composition having dual protection for the skin: protection against UV rays and limiting the penetration of UV filters into the skin.

    AQUEOUS THICKENING COMPOSITION
    8.
    发明申请

    公开(公告)号:US20220259384A1

    公开(公告)日:2022-08-18

    申请号:US17626673

    申请日:2020-07-08

    申请人: COATEX

    摘要: The invention pertains to the field of aqueous thickening compositions, particularly for increasing the viscosity of an aqueous paint or varnish composition, a detergent composition or a cosmetic composition, in particular a cosmetic composition comprising ethoxylated surfactant compounds. The composition according to the invention comprises at least 40% by weight of water and combines a particular thickening compound and a nonionic compound comprising at least one hydrophilic saccharide group attached to at least one linear or branched hydrophobic chain.

    COSMETIC CLEANSING COMPOSITION COMPRISING A COPOLYMER OF THE ASE OR HASE TYPE

    公开(公告)号:US20220062152A1

    公开(公告)日:2022-03-03

    申请号:US17420253

    申请日:2020-01-23

    申请人: COATEX

    摘要: The invention relates to the field of cosmetic cleansing compositions and proposes an aqueous cosmetic cleansing composition which does not comprise any surfactant compound and no lipophilic compound. This composition comprises a water-soluble humectant compound and a copolymer of the ASE type or a copolymer of the HASE type. The invention also provides a cleansing method using this composition, and in particular a make-up removal method.