中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

44 records (took 0.023 seconds)

    Multi-Stage Polymer Composition and Films Made Therefrom
    31.
    发明申请
    Multi-Stage Polymer Composition and Films Made Therefrom 审中-公开
    多级聚合物组合物和薄膜

    公开(公告)号：US20150183944A1

    公开(公告)日：2015-07-02

    申请号：US14418521

    申请日：2013-08-05

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo ,  Steven J. Broadwater ,  Veera D. Nelliappan

    IPC: C08J5/18 ,  C08F220/10

    CPC classification number: C08J5/18 ,  C08F220/10 ,  C08F220/40 ,  C08F265/06 ,  C08F285/00 ,  C08J2333/06 ,  C08J2333/08 ,  C08J2433/12 ,  C08J2435/02 ,  C08F2222/1013

    Abstract: A multi-stage polymer composition comprising a crosslinked core having a Tg of from −85 to −10° C.; an intermediate region which comprises one or more intermediate layers, wherein each of the intermediate layers comprises from 88.5 to 99.9 weight percent of units derived from a one or more monomers selected from the group consisting of alkyl(meth)acrylate monomers, from 0 to 5 weight percent of units derived from a cross-linking monomer, a graft-linking monomer, or a combination of two or more thereof, optionally from 0 to 2 weight percent units derived from one or more chain transfer agents; wherein there is a compositional gradient between the intermediate layers such that the Tg transitions from −30° C. to 70° C. over the width of the intermediate region, and an outermost layer which has a Tg of from 40° C. to 110° C. is provided.

    Abstract translation: 一种多级聚合物组合物，其包含Tg为-85至-10℃的交联核心; 中间区域，其包含一个或多个中间层，其中每个中间层包含88.5-99.9重量％的衍生自一种或多种选自（甲基）丙烯酸烷基酯单体，0-5个 衍生自交联单体的单元的重量百分比，接枝单体或其两种或多种的组合，任选地0至2重量％的衍生自一种或多种链转移剂的单元; 其中在中间层之间存在组成梯度，使得Tg在中间区域的宽度上从-30℃至70℃变化，并且Tg为40℃至110℃的最外层 °C。

    Polymerizing silicone and acrylic monomers
    32.
    发明授权
    Polymerizing silicone and acrylic monomers 有权

    公开(公告)号：US12043685B2

    公开(公告)日：2024-07-23

    申请号：US17259635

    申请日：2019-07-26

    Applicant: Rohm and Haas Company ,  Dow Silicones Corporation

    Inventor： Yang Cheng ,  Morris Wills ,  Hailan Guo ,  Nanguo Liu

    IPC: C08F290/14 ,  C08K5/41

    CPC classification number: C08F290/148 ,  C08K5/41

    Abstract: A method of making a collection of polymer particles comprising



    (A) performing free radical polymerization (A) on an emulsion (E1) that comprises a collection of droplets dispersed in an aqueous medium, wherein the droplets comprise

    (i) one or more Si-containing monomers;
    (ii) one or more monovinyl acrylic monomers; and
    (iii) one or more graftlinkers that have no silicon atoms;
    to form a dispersion (D1) of core polymer particles in the aqueous medium;


    (B) in the presence of the dispersion (D1) of core polymer particles, performing aqueous emulsion polymerization (B) on one or more acrylic monomers.

    Modified styrene-acrylonitrile
    33.
    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.

    PVC COMPOSITION, POLYMER COMPOSITE ARTICLE FORMED THEREWITH, AND METHOD OF PREPARING SAME
    35.
    发明申请
    PVC COMPOSITION, POLYMER COMPOSITE ARTICLE FORMED THEREWITH, AND METHOD OF PREPARING SAME 有权

    公开(公告)号：US20220275188A1

    公开(公告)日：2022-09-01

    申请号：US17630282

    申请日：2020-08-06

    Applicant: Rohm and Haas Company ,  Dow Silicones Corporation

    Inventor： Hailan Guo ,  Manoj Nerkar ,  Sharon M. Vuong ,  Igor Chorvath

    IPC: C08L27/06 ,  C08L83/04

    Abstract: A polyvinyl chloride (PVC) composition and a method for preparing a polymer composite article. The composition comprises (A) a mineral filler in an amount of from 7.5 to 75 wt. %. The composition also comprises (B) a polyvinyl chloride polymer in an amount of from 20 to 92 wt. %. Further, the composition comprises (C) a polydiorganosiloxane in an amount of from greater than 0 to 5 wt. %; the (C) polydiorganosiloxane being a compound of formula (I): where each R is an independently selected monovalent hydrocarbon group of 1 to 18 carbon atoms that is free of aliphatic unsaturation, and subscript x has a value sufficient to give the (C) polydiorganosiloxane a viscosity of greater than 350 mPa·s to 100,000 mPa·s measured at 25° C. at 0.1 RPM to 50 RPM on a Brookfield DV-III cone & plate viscometer with #CP-52 spindle. The ranges for components (A)-(C) are based on the total weight of components (A), (B) and (C) in the composition.

    MODIFIED STYRENE-ACRYLONITRILE
    36.
    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.

    Multi-stage polymer composition and films made therefrom
    37.
    发明授权
    Multi-stage polymer composition and films made therefrom 有权

    公开(公告)号：US10920060B2

    公开(公告)日：2021-02-16

    申请号：US16096743

    申请日：2017-05-18

    Applicant: Rohm and Haas Company

    Inventor： Hailan Guo

    IPC: C08F285/00 ,  C08J5/18 ,  C08F220/14 ,  C08F220/18 ,  C08L33/06 ,  C09J151/00 ,  C08F2/38

    Abstract: Provided are multi-stage polymer compositions comprising (a) cross-linked core comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, and (ii) one or more cross-linking monomers, graft-linking monomers, and combinations thereof, (b) a first intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, and (ii) cross-linking monomers, graft-linking monomers, and combinations thereof, (c) a second intermediate layer comprising polymerized units derived from (i) one or more alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, and (ii) one or more chain transfer agents, and (d) a shell comprising polymerized units derived from (i) alkyl(meth)acrylate monomers, styrenic monomers, and combinations thereof, (ii) one or more monomers selected from the group consisting of acid functionalized monomers, hydroxyl-functionalized monomers, and combinations thereof, and (iii) optionally, of one or more chain transfer agents.

Patent Agency Ranking