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    TWO-COMPONENT POLYURETHANE COMPOSITION
    2.
    发明申请
    TWO-COMPONENT POLYURETHANE COMPOSITION 有权

    公开(公告)号：US20240417505A1

    公开(公告)日：2024-12-19

    申请号：US18702844

    申请日：2021-12-23

    Applicant: Dow Global Technologies LLC

    Inventor： Daoshu Lin ,  Cheng Shen ,  Yan Li ,  Jia Tang

    IPC: C08G18/40 ,  C08G18/08 ,  C08G18/48 ,  C08G18/62 ,  C08G18/73

    Abstract: A two-component polyurethane composition contains (A) an aqueous dispersion comprising: a hydroxyl group-containing acrylic emulsion polymer comprising, by weight based on the weight of the hydroxyl group-containing acrylic emulsion polymer, from 5% to 50% of structural units of a hydroxy-functional alkyl (meth) acrylate; and from 2% to 20%, by weight based on the weight of the hydroxyl group-containing acrylic emulsion polymer, of a branched polyether polyol; where the branched polyether polyol has a hydroxyl functionality of from 4 to 10 and a molecular weight per branch of from 1200 to 2500 grams per mole, and contains from 20% to 40% of ethylene oxide units, by weight based on the weight of the branched polyether polyol; and (B) a polyisocyanate.

    METHOD OF PACKAGING BATTERY DEVICES
    8.
    发明公开
    METHOD OF PACKAGING BATTERY DEVICES 审中-公开

    公开(公告)号：US20230238619A1

    公开(公告)日：2023-07-27

    申请号：US18010503

    申请日：2020-07-30

    Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

    Inventor： Li Zhou ,  Daoshu Lin ,  Dong Yun ,  Fengzhe Shi

    IPC: H01M50/124 ,  H01M50/133

    CPC classification number: H01M50/1245 ,  H01M50/133

    Abstract: A method of packaging a battery device with a metal shell, comprising: applying a waterborne two-component polyurethane composition to the metal shell of the battery device, and drying the applied polyurethane composition to form a packaging layer; wherein the polyurethane composition comprises, (A) an aqueous dispersion comprising a hydroxyl-functional polymer, wherein the hydroxyl-functional polymer comprises, by weight based on the weight of the hydroxyl-functional polymer, from 20% to 50% of structural units of a hydroxy-functional alkyl (meth)acrylate; from 0.1% to 10% of structural units of an acid monomer, a salt thereof, or mixtures thereof; and structural units of a monoethylenically unsaturated nonionic monomer; and (B) a polyisocyanate.

    AQUEOUS COMPOSITION
    10.
    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.

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