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    Bimodal silicone-acrylic polymer particles
    1.
    发明授权
    Bimodal silicone-acrylic polymer particles 有权

    公开(公告)号：US12071536B2

    公开(公告)日：2024-08-27

    申请号：US17259639

    申请日：2019-07-26

    Applicant: Rohm and Haas Company ,  Dow Silicones Corporation

    Inventor： Morris Wills ,  Hailan Guo ,  Nanguo Liu ,  Jeffrey Rastello

    IPC: C08L25/12 ,  C08F285/00

    CPC classification number: C08L25/12 ,  C08F285/00 ,  C08L2205/03 ,  C08L2207/53

    Abstract: Provided is a collection of polymer particles comprising



    (I) a plurality of acrylic particles (I) each comprising

    (a) an acrylic core polymer (Ia) comprising

    (i) polymerized units of one or more monovinyl acrylic monomers (Iai),
    (ii) polymerized units of one or more Si-free graftlinkers (Iaii),


    (b) a shell polymer (Ib),


    (II) a plurality of hybrid polymer particles (II), each comprising

    (a) a core polymer (IIa) comprising

    (i) polymerized units of one or more silicon-containing monomers (IIai);
    (ii) optionally, polymerized units of one or more monovinyl acrylic monomers (IIaii); and
    (iii) polymerized units of one or more Si-free graftlinkers (IIaiii);


    (b) a shell polymer (IIb) comprising polymerized units of one or more acrylic monomers (IIb).

    Light diffusing polymer composition, method of producing the same, and articles made therefrom
    3.
    发明授权
    Light diffusing polymer composition, method of producing the same, and articles made therefrom 有权

    公开(公告)号：US11156746B2

    公开(公告)日：2021-10-26

    申请号：US14418477

    申请日：2013-08-05

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Eric Lundquist

    IPC: G02B1/04 ,  B29C43/24 ,  B29C45/00 ,  B29C51/00 ,  B29D11/00 ,  C08L69/00 ,  G02B5/02 ,  B29L11/00

    Abstract: A composition comprising: a blended product of: a matrix polymer; and from 0.05 to 2.5 wt % diffuser polymer particles, wherein the diffuser polymer particles are characterized by an average diameter from 2 to 20 micrometers, a particle size distribution such that at least 90 wt % of the polymer particles fall within ±30% of the volume average particle size, a crosslinking level greater than 4%; and wherein the diffuser polymer particles comprise units derived from at least one alkyl(meth)acrylate monomer, from 5 wt % to 25 wt % units derived from a crosslinking monomer selected from the group consisting of aliphatic crosslinking monomers, aromatic crosslinking monomers and combinations thereof, optionally, units derived from one or more comonomers selected from the group consisting of aryl(meth)acrylate monomers and monovinyl arenes; and wherein from 0.1 to 20 wt % one or more performance additives dispersed within the diffuser polymer particles is provided.

    POLYMERIZATION PROCESS FOR SILICONE AND ACRYLIC MONOMERS
    5.
    发明申请
    POLYMERIZATION PROCESS FOR SILICONE AND ACRYLIC MONOMERS 有权

    公开(公告)号：US20210269575A1

    公开(公告)日：2021-09-02

    申请号：US17260452

    申请日：2019-07-26

    Applicant: Rohm and Haas Company ,  Dow Silicones Corporation

    Inventor： Morris Wills ,  Hailan Guo ,  Nanguo Liu ,  Jeffrey Rastello

    IPC: C08F283/12 ,  C08F265/06 ,  C08F220/14 ,  C08F220/18 ,  C08F220/40 ,  C08F285/00 ,  C08L51/00 ,  C08F2/22

    Abstract: Provided is a method of making a collection of polymer particles comprising (A) providing a dispersion (D1) of particles of core polymer (IIa) in an aqueous medium, wherein core polymer (IIa) comprises (i) polymerized units of one or more silicone monomers (IIai); (ii) optionally, polymerized units of one or more monovinyl acrylic monomers (IIaii); and (iii) polymerized units of one or more Si-free graftlinkers (IIaiii); wherein the dispersion (D1) comprises micelles of one or more surfactant, (B) producing a latex (L1) by performing an emulsion polymerization process (B) that produces particles of core polymer (Ia) dispersed in the aqueous medium, wherein latex (L1) comprises dispersed particles of core polymer (Ia) and dispersed particles of core polymer (IIa) in the aqueous medium, (C) producing a latex (L2) by performing an emulsion polymerization process (C) by a process comprising adding a monomer emulsion (E3) to latex (L1).

    LIGHT DIFFUSING POLYMER COMPOSITION, METHOD OF PRODUCING THE SAME, AND ARTICLES MADE THEREFROM
    6.
    发明申请
    LIGHT DIFFUSING POLYMER COMPOSITION, METHOD OF PRODUCING THE SAME, AND ARTICLES MADE THEREFROM 有权
    光扩散聚合物组合物，其制造方法及其制造方法

    公开(公告)号：US20130317175A1

    公开(公告)日：2013-11-28

    申请号：US13850435

    申请日：2013-03-26

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Eric G. Lundquist ,  Luu Le

    IPC: G02B5/02

    CPC classification number: G02B5/02 ,  C08F265/04 ,  C08F265/06 ,  C08F271/02 ,  C08F2220/1825 ,  C08L33/10 ,  C08L33/12 ,  C08F212/08 ,  C08F220/40 ,  C08F222/1006 ,  C08F212/36 ,  C08F220/18

    Abstract: A composition comprising: a blended product of: a matrix polymer; and from 0.05 to 2.5 wt % diffuser polymeric particles, wherein the diffuser polymeric particles are characterized by an average diameter from 2.0 to 8 micrometers, a particle size distribution such that at least 90 wt % of the polymer particles fall within ±30% of the volume average particle size, a refractive index, RI, from 1.50 to 1.55; a crosslinking level great than 4%; and wherein the diffuser polymeric particles are produced using at least one alkyl(meth)acrylate monomer copolymerized with from 5 wt % to 25 wt % crosslinking monomer selected from the group consisting of aliphatic crosslinking monomers, aromatic crosslinking monomers, and combinations thereof, and optionally, one or more comonomers selected from the group consisting of aryl(meth)acrylate monomers and monovinyl arenes is provided.

    Abstract translation: 一种组合物，其包含：混合产物：基质聚合物; 和0.05至2.5重量％的扩散聚合物颗粒，其中扩散聚合物颗粒的特征在于平均直径为2.0至8微米，粒度分布使得至少90重量％的聚合物颗粒落在聚合物颗粒的±30％内 体积平均粒径，折射率RI，从1.50到1.55; 交联度大于4％; 并且其中所述扩散聚合物颗粒使用至少一种与5重量％至25重量％的交联单体共聚的（甲基）丙烯酸烷基酯单体制备，所述交联单体选自脂族交联单体，芳族交联单体及其组合，以及任选地 提供一种或多种选自（甲基）丙烯酸芳基酯单体和单乙烯基芳烃的共聚单体。

    ALLYLIC FUNCTIONAL THERMOPLASTIC ADDITIVE FOR UV CURABLE FLEXIBLE ACRYLIC RESIN CLEAR FILMS
    9.
    发明申请
    ALLYLIC FUNCTIONAL THERMOPLASTIC ADDITIVE FOR UV CURABLE FLEXIBLE ACRYLIC RESIN CLEAR FILMS 有权

    公开(公告)号：US20220315687A1

    公开(公告)日：2022-10-06

    申请号：US17615990

    申请日：2020-05-29

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Morris Wills

    IPC: C08F265/06 ,  C08J5/18 ,  C08F2/50

    Abstract: Disclosed is a composition comprising a multi-stage flexible acrylic resin and a branched polymer which is a reaction product of reactants comprising one or more monoethylenically unsaturated ester monomers, a chain transfer agent in an amount of 0.1 to 15 weight percent, and a crosslinker in an amount of 0.1 to 15 weight percent of a crosslinker, wherein weight percent is based on total amount of reactants, provided the amount of crosslinker is within +/−5 weight percent of the amount of chain transfer agent, and wherein the crosslinker comprises at least two carbon-carbon double bonds having different reactivity, and films thereof.

    Three-stage polymer particle
    10.
    发明授权
    Three-stage polymer particle 有权

    公开(公告)号：US11441026B2

    公开(公告)日：2022-09-13

    申请号：US16980586

    申请日：2019-03-04

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Pu Luo ,  Morris Wills

    IPC: C08L25/12

    Abstract: Provided is polymer particle comprising (a) 40% to 85% by weight, based on the dry weight of the polymer particle, a core polymer having Tg of −35° C. or lower; (b) 15% to 50% by weight, based on the dry weight of the polymer particle, 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; (c) 5% to 30% by weight, based on the dry weight of the polymer particle, 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.

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