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    NOVEL MESOGEN-SILICON COMPOUND (CO)POLYMER AND THERMOPLASTIC ELASTOMER
    6.
    发明申请
    NOVEL MESOGEN-SILICON COMPOUND (CO)POLYMER AND THERMOPLASTIC ELASTOMER 审中-公开

    公开(公告)号：US20190352466A1

    公开(公告)日：2019-11-21

    申请号：US16476368

    申请日：2018-01-16

    申请人： SHIN-ETSU CHEMICAL CO., LTD.

    发明人： Akira Uta ,  Kumiko Hayashi ,  Tomoki Akiba

    IPC分类号： C08G77/52

    摘要： Provided is a thermoplastic elastomer comprising a mesogen-silicon compound (co)polymer which is represented by formula (1) below and has a number average molecular weight of 1,000-500,000. The thermoplastic elastomer has transparency and rubber properties (rubber elasticity) and can be (repeatedly) molded thermally and reversibly, and thus can be suitably used in potting materials or various sealing materials. In formula (1), Ar represents a mesogenic group selected from among structures represented by formula (2) below, a represents an integer of 0.5-1, b represents a number of 0-0.5 (a and b respectively represent the ratio of the number of respective repeating units to the sum of all the repeating units in the molecule, and a+b=1), R1 is a monovalent hydrocarbon group that does not contain a C1-8 aliphatic unsaturated bond, and R2 is a hydrogen atom, —Si(CH3)3, —Si(CH3)2(OH), —Si(CH3)2(CH═CH2) or —Si(CH3)2(CH2—CH═CH2).

    Mesogen-silicon compound (co)polymer and thermoplastic elastomer
    9.
    发明授权
    Mesogen-silicon compound (co)polymer and thermoplastic elastomer 有权

    公开(公告)号：US11142612B2

    公开(公告)日：2021-10-12

    申请号：US16476368

    申请日：2018-01-16

    申请人： SHIN-ETSU CHEMICAL CO., LTD.

    发明人： Akira Uta ,  Kumiko Hayashi ,  Tomoki Akiba

    IPC分类号： C08G77/52 ,  C08G77/00 ,  C08G77/50

    摘要： Provided is a thermoplastic elastomer comprising a mesogen-silicon compound (co)polymer which is represented by formula (1) below and has a number average molecular weight of 1,000-500,000. The thermoplastic elastomer has transparency and rubber properties (rubber elasticity) and can be (repeatedly) molded thermally and reversibly, and thus can be suitably used in potting materials or various sealing materials. In formula (1), Ar represents a mesogenic group selected from among structures represented by formula (2) below, a represents an integer of 0.5-1, b represents a number of 0-0.5 (a and b respectively represent the ratio of the number of respective repeating units to the sum of all the repeating units in the molecule, and a+b=1), R1 is a monovalent hydrocarbon group that does not contain a C1-8 aliphatic unsaturated bond, and R2 is a hydrogen atom, —Si(CH3)3, —Si(CH3)2(OH), —Si(CH3)2(CH═CH2) or —Si(CH3)2(CH2—CH═CH2).