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    Anionic graft polymerization onto an existing polymer chain by organometallic base activation
    2.
    发明授权
    Anionic graft polymerization onto an existing polymer chain by organometallic base activation 有权

    公开(公告)号：US11834538B2

    公开(公告)日：2023-12-05

    申请号：US16692864

    申请日：2019-11-22

    申请人： ExxonMobil Chemical Patents Inc.

    发明人： Jason A. Mann

    IPC分类号： C08F257/02 ,  C08F255/10 ,  C08F279/00 ,  C08L71/02 ,  C08F255/06

    CPC分类号： C08F257/02 ,  C08F255/06 ,  C08F255/10 ,  C08F279/00 ,  C08L71/02

    摘要： Polyolefin elastomers are widely employed commodity polymers. There remains a desire to expand the structural diversity of polyolefin elastomers to facilitate their use in additional applications. Polyolefin elastomers may be graft copolymers that comprise: a first polymer chain comprising at least a first olefinic monomer comprising isobutylene and a second olefinic monomer bearing a benzylic carbon atom or an allylic carbon atom, and a second polymer chain bonded to the benzylic carbon atom or the allylic carbon atom of the first polymer chain. The second polymer chain comprises at least one monomer that is not present in the first polymer chain. The second polymer chain may be bonded to the first polymer chain by generating a carbanion upon the benzylic carbon atom or the allylic carbon atom and growing the second polymer chain by anionic polymerization.

    Graft copolymer and thermoplastic resin composition
    6.
    发明授权
    Graft copolymer and thermoplastic resin composition 有权

    公开(公告)号：US10118982B2

    公开(公告)日：2018-11-06

    申请号：US15304773

    申请日：2015-04-17

    申请人： NIPPON A&L INC.

    发明人： Kazuhiro Ishigaki ,  Kiyoshi Ikawa ,  Taisuke Yukawa

    IPC分类号： C08F255/02 ,  C08F255/00 ,  C08L51/06 ,  C08L69/00 ,  C08F255/10 ,  C08L25/12

    摘要： Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.

    GRAFT COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION
    8.
    发明申请
    GRAFT COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION 审中-公开
    GRAFT共聚物和热塑性树脂组合物

    公开(公告)号：US20170037175A1

    公开(公告)日：2017-02-09

    申请号：US15304773

    申请日：2015-04-17

    申请人： NIPPON A&L INC.

    发明人： Kazuhiro ISHIGAKI ,  Kiyoshi IKAWA ,  Taisuke YUKAWA

    IPC分类号： C08F255/02 ,  C08L25/12 ,  C08L69/00 ,  C08F255/10

    摘要： Provided is a graft copolymer (A) obtainable by graft-polymerizing, in the presence of 30 to 80 parts by mass of an ethylene-based polymer (a), an aromatic vinyl-based monomer (b) and, if necessary, another vinyl-based monomer (c) copolymerizable with the aromatic vinyl-based monomer (b) in a total amount of 20 to 70 parts by mass (provided that the sum of the components (a), (b) and (c) is 100 parts by mass), in which the ethylene-based polymer (a) has a density of 0.900 g/cm3 or more and less than 0.966 g/cm3, a number average molecular weight of 10,000 to 50,000, and a molecular weight distribution of 5 to 15, and the proportion of the ethylene-based polymer (a) molecules having a molecular weight of 10,000 or less is 5.5% or more.

    摘要翻译： 本发明提供一种接枝共聚物（A），其可以通过在30〜80质量份的乙烯系聚合物（a），芳香族乙烯基类单体（b）和必要时，另外的乙烯基系聚合物 （c）可与芳族乙烯基类单体（b）共聚合的总量为20〜70质量份（c）成分（a），（b）和（c）的总和为100份 ，其中乙烯类聚合物（a）的密度为0.900g / cm 3以上且小于0.966g / cm 3，数均分子量为10,000〜50,000，分子量分布为5〜 15，分子量为10,000以下的分子的乙烯类聚合物（a）的比例为5.5％以上。