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    AQUEOUS COMPOSITION
    1.
    发明公开
    AQUEOUS COMPOSITION 审中-公开

    公开(公告)号：US20230279213A1

    公开(公告)日：2023-09-07

    申请号：US18019295

    申请日：2020-08-31

    Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

    Inventor： Daoshu Lin ,  Caifeng Wang ,  Jianming Xu ,  Yuehan Hu

    IPC: C08L33/12

    CPC classification number: C08L33/12

    Abstract: An aqueous composition comprising: (a) an aqueous dispersion of hybrid polymer particles with a fluorine content of 5% or more, wherein the hybrid polymer particles comprise, based on the weight of the hybrid polymer particles, (i) greater than 20% to 75% by weight of a first polymer component comprising a fluoroethylene vinyl ether copolymer, and (ii) from 25% to less than 80% by weight of a second polymer component, wherein the second polymer component is an acrylic copolymer comprising, based on the weight of the acrylic copolymer, from 0.15% to 1.2% by weight of structural units of a phosphorus-containing acid monomer, a salt thereof, or mixtures thereof, and structural units of a monoethylenically unsaturated nonionic monomer; and (b) from 5% to 30% by dry weight of colloidal silica, based on the total weight of the hybrid polymer particles and the dry weight of the colloidal silica. The aqueous composition can provide coatings with balanced dirt pick-up resistance and durability properties.

    Process for preparing transparent/semi-transparent color dispersions and the color dispersions made thereof
    2.
    发明授权
    Process for preparing transparent/semi-transparent color dispersions and the color dispersions made thereof 有权

    公开(公告)号：US10030162B2

    公开(公告)日：2018-07-24

    申请号：US14477298

    申请日：2014-09-04

    Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

    Inventor： Dong Yun ,  Yujiang Wang ,  Hui Liu ,  Caifeng Wang ,  Siyuan Jiang

    IPC: C09D101/28 ,  C09B67/46 ,  C09B67/22 ,  C09D5/29 ,  C09D5/02 ,  C09D133/08

    Abstract: This invention relates to a process for preparing color dispersions comprising a first step of contacting water, a first colorant, and a polysaccharide selected from methylcellulose, hydropropylmethylcellulose, hydroxyethylmethylcellulose, hydroxybutylmethylcellulose, hydroxyethylethylcellulose, and the mixture thereof, to form a first colorant dispersion; a second step of contacting the first colorant dispersion with a protective composition comprising an aqueous dispersion of polymer particles, clay, and a peptizing agent to form a dispersion of protected first colorant particles; an optional third step of repeating the first step and the second step with a second colorant that is different from the first colorant to form a dispersion of protected second colorant particles; and an optional fourth step of mixing the dispersions of protected first and second colorant particles to form a multi-color dispersion. This invention also relates to a color dispersion comprising the first colorant dispersion, and a color coating comprising the color dispersion.

    PROCESS FOR PREPARING TRANSPARENT/SEMI-TRANSPARENT COLOR DISPERSIONS AND THE COLOR DISPERSIONS MADE THEREOF
    4.
    发明申请
    PROCESS FOR PREPARING TRANSPARENT/SEMI-TRANSPARENT COLOR DISPERSIONS AND THE COLOR DISPERSIONS MADE THEREOF 审中-公开
    制备透明/半透明颜料分散体的方法及其颜色分散体

    公开(公告)号：US20150065618A1

    公开(公告)日：2015-03-05

    申请号：US14477298

    申请日：2014-09-04

    Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  ROHM AND HAAS COMPANY

    Inventor： Dong Yun ,  Yujiang Wang ,  Hui Liu ,  Caifeng Wang ,  Siyuan Jiang

    IPC: C09D133/00 ,  C09D101/28

    CPC classification number: C09D101/284 ,  C09B67/0033 ,  C09B67/0085 ,  C09D5/02 ,  C09D5/29 ,  C09D101/28 ,  C09D133/08

    Abstract: This invention relates to a process for preparing color dispersions comprising a first step of contacting water, a first colorant, and a polysaccharide selected from methylcellulose, hydropropylmethylcellulose, hydroxyethylmethylcellulose, hydroxybutylmethylcellulose, hydroxyethylethylcellulose, and the mixture thereof, to form a first colorant dispersion; a second step of contacting the first colorant dispersion with a protective composition comprising an aqueous dispersion of polymer particles, clay, and a peptizing agent to form a dispersion of protected first colorant particles; an optional third step of repeating the first step and the second step with a second colorant that is different from the first colorant to form a dispersion of protected second colorant particles; and an optional fourth step of mixing the dispersions of protected first and second colorant particles to form a multi-color dispersion. This invention also relates to a color dispersion comprising the first colorant dispersion, and a color coating comprising the color dispersion.

    Abstract translation: 本发明涉及一种制备颜色分散体的方法，包括使水，第一着色剂和选自甲基纤维素，羟丙基甲基纤维素，羟乙基甲基纤维素，羟丁基甲基纤维素，羟乙基乙基纤维素及其混合物的多糖接触的第一步骤，以形成第一着色剂分散体; 使第一着色剂分散体与包含聚合物颗粒，粘土和胶溶剂的水性分散体的保护性组合物接触以形成受保护的第一着色剂颗粒的分散体的第二步骤; 使用与第一着色剂不同的第二着色剂重复第一步骤和第二步骤以形成受保护的第二着色剂颗粒的分散体的可选的第三步骤; 以及可选的第四步骤，将受保护的第一和第二着色剂颗粒的分散体混合以形成多色分散体。 本发明还涉及包含第一着色剂分散体的分散体和包含该分散体的着色涂层。

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