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    PHOSPHORUS ACID FUNCTIONALIZED COATING COMPOSITION
    4.
    发明申请
    PHOSPHORUS ACID FUNCTIONALIZED COATING COMPOSITION 有权

    公开(公告)号：US20220127686A1

    公开(公告)日：2022-04-28

    申请号：US17573029

    申请日：2022-01-11

    Applicant: Rohm and Haas Company

    Inventor： Joy A. Gallagher ,  Philip R. Harsh ,  Pu Luo ,  Edwin Nungesser

    IPC: C14C11/00 ,  C09D4/06 ,  C09D133/06 ,  C09D5/00 ,  C09D133/12

    Abstract: The present invention relates to a composition comprising an aqueous dispersion of submicron-sized polymer particles and micron-sized polymer beads, wherein the polymer particles or beads or both are functionalized with phosphorus acid groups. The composition of the present invention is useful for providing a matte finish on substrates, such as leather, textiles, wallboard, decorative coatings, concrete, and wood, with improved stain resistance. The present invention also relates to a leather substrate coated with a clear matte finish comprising an acrylic or styrene-acrylic polymer film and micron-sized polymer beads, wherein the film or the beads or both are functionalized with a phosphorus acid monomer.

    Polyvinyl acetate latex
    5.
    发明授权
    Polyvinyl acetate latex 有权

    公开(公告)号：US10119018B2

    公开(公告)日：2018-11-06

    申请号：US15338530

    申请日：2016-10-31

    Applicant: Rohm and Haas Company

    Inventor： Kebede Beshah ,  James C. Bohling ,  Pu Luo

    IPC: C08L31/04 ,  C08F218/08 ,  C09D131/04

    Abstract: The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R1—SH, where R1 is a C1-C4 alkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C1-C3-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content.

    MULTISTAGE IMPACT MODIFIERS WITH ORGANO-PHOSPHORUS IN A LATTER STAGE
    6.
    发明申请
    MULTISTAGE IMPACT MODIFIERS WITH ORGANO-PHOSPHORUS IN A LATTER STAGE 有权

    公开(公告)号：US20250011586A1

    公开(公告)日：2025-01-09

    申请号：US18712529

    申请日：2022-12-07

    Applicant: Rohm and Haas Company

    Inventor： Pu Luo ,  Morris Wills ,  William Rohrbach ,  Mark A. Kesselmayer

    IPC: C08L9/00

    Abstract: Provided are multistage polymer compositions comprising (a) an initial stage polymer, and (b) a latter stage polymer, wherein latter stage polymer comprises polymerized units derived from at least one alkyl (meth)acrylate monomer, a styrene monomer, and at least one organo-phosphorus monomer. The at least one organo-phosphorus monomer is in the acid form as a salt of the phosphorus acid group. The weight ratio of the at least one alkyl (meth)acrylate monomer to styrene monomer in the latter stage polymer ranges from 50:50 to 90:10. Also provided are matrix resin compositions comprising such polymer compositions and a matrix resin, and a method for making the multistage polymer compositions.

    Modified styrene-acrylonitrile
    7.
    发明授权
    Modified styrene-acrylonitrile 有权

    公开(公告)号：US11981804B2

    公开(公告)日：2024-05-14

    申请号：US16980591

    申请日：2019-03-04

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Pu Luo ,  Morris Wills

    IPC: C08L25/12 ,  C08F2/22 ,  C08F220/14 ,  C08F220/18 ,  C08F220/40 ,  C08L51/00

    CPC classification number: C08L25/12 ,  C08F220/14 ,  C08F220/1804 ,  C08F220/40 ,  C08L51/003 ,  C08F2/22 ,  C08L2205/18 ,  C08L2205/22 ,  C08L2207/53

    Abstract: Provided is a polymeric composition comprising a continuous phase that comprises a matrix polymer and a dispersed phase comprising polymer particles, wherein the polymer particles comprise:



    (a) 30% to 85% by weight, based on the dry weight of the polymer particles, a core polymer having Tg of −35° C. or lower;
    (b) 15% to 50% by weight, based on the dry weight of the polymer particles, an intermediate polymer having Tg that is 20° C. or lower and that is higher than the Tg of the core polymer by 10° C. or more; and
    (c) 5% to 30% by weight, based on the dry weight of the polymer particles, a shell polymer having Tg of 50° C. or higher;

    wherein the shell polymer comprises polymerized units of all vinyl aromatic monomers in an amount of 1% or less, by weight based on the weight of the shell polymer. Also provided is a method of making the composition.

    MODIFIED STYRENE-ACRYLONITRILE
    9.
    发明申请
    MODIFIED STYRENE-ACRYLONITRILE 有权

    公开(公告)号：US20210246293A1

    公开(公告)日：2021-08-12

    申请号：US16980591

    申请日：2019-03-04

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Pu Luo ,  Morris Wills

    IPC: C08L25/12 ,  C08F220/14 ,  C08F220/18 ,  C08F220/40 ,  C08L51/00

    Abstract: Provided is a polymeric composition comprising a continuous phase that comprises a matrix polymer and a dispersed phase comprising polymer particles, wherein the polymer particles comprise: (a) 30% to 85% by weight, based on the dry weight of the polymer particles, a core polymer having Tg of −35° C. or lower; (b) 15% to 50% by weight, based on the dry weight of the polymer particles, an intermediate polymer having Tg that is 20° C. or lower and that is higher than the Tg of the core polymer by 10° C. or more; and (c) 5% to 30% by weight, based on the dry weight of the polymer particles, a shell polymer having Tg of 50° C. or higher; wherein the shell polymer comprises polymerized units of all vinyl aromatic monomers in an amount of 1% or less, by weight based on the weight of the shell polymer. Also provided is a method of making the composition.

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