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    Styrenic block copolymer and process for producing same
    6.
    发明授权
    Styrenic block copolymer and process for producing same 失效
    苯乙烯嵌段共聚物及其制备方法

    公开(公告)号：US5391626A

    公开(公告)日：1995-02-21

    申请号：US63745

    申请日：1993-05-20

    Applicant: Shuji Machida ,  Toshinori Tazaki ,  Noriyuki Tani

    Inventor： Shuji Machida ,  Toshinori Tazaki ,  Noriyuki Tani

    IPC: B32B27/06 ,  C08F297/06 ,  C08L25/06 ,  C08L53/00 ,  C08L53/02 ,  C08L101/00 ,  C08F4/76 ,  B32B27/28 ,  B32B27/30 ,  C08F297/00

    CPC classification number: C08F297/06 ,  B32B27/06 ,  C08L25/06 ,  Y10T428/31855

    Abstract: There are disclosed a styrenic block copolymer having a reduced viscosity of 0.01 to 20 dl/g (0.05 g/l in 1,2,4-trichlorobenzene at 135.degree. C.) which comprises highly syndiotactic styrenic-polymer segments and 10.sup.-4 to 10 mol % of heteroatom-containing styrenic polymer segments; a resin composition comprising the above styrenic block copolymer and a thermoplastic resin, an inorganic filler or an organic filler; a multi-layer material comprising at least one layer composed of the above styrenic block copolymer or the above resin composition; and a process for producing the above styrenic block copolymer which comprises polymerizing a styrenic monomer in the presence of a specific catalyst and adding a heteroatom-containing styrenic monomer to successively proceed with copolymerization reaction. The above-disclosed styrenic block copolymer and the resin composition exhibit excellent compatibility and adhesivenesss, and the multi-layer material is expected to find a wide range of applications in automobile parts, electrical and electronic parts as well as film, sheet, etc.

    Abstract translation: 公开了一种苯乙烯嵌段共聚物，其具有0.01至20dl / g（在135℃下的1,2,4-三氯苯中为0.05g / l），其包含高度间同立构的苯乙烯 - 聚合物链段，并且10-4至 10mol％的含杂原子的苯乙烯聚合物链段; 包含上述苯乙烯嵌段共聚物和热塑性树脂，无机填料或有机填料的树脂组合物; 包括由上述苯乙烯嵌段共聚物或上述树脂组合物构成的至少一层的多层材料; 以及上述苯乙烯系嵌段共聚物的制造方法，其特征在于，在特定催化剂存在下使苯乙烯类单体聚合，加入含杂原子的苯乙烯类单体，进行共聚反应。 上述公开的苯乙烯嵌段共聚物和树脂组合物表现出优异的相容性和粘合性，多层材料预期在汽车部件，电气和电子部件以及薄膜，片材等方面可以广泛应用。

    Graft copolymer and process for producing the same
    7.
    发明授权
    Graft copolymer and process for producing the same 失效
    接枝共聚物及其制备方法

    公开(公告)号：US5250629A

    公开(公告)日：1993-10-05

    申请号：US802840

    申请日：1991-12-06

    Applicant: Noriyuki Tani ,  Shuji Machida ,  Toshinori Tazaki

    Inventor： Noriyuki Tani ,  Shuji Machida ,  Toshinori Tazaki

    IPC: B32B27/06 ,  C08F257/02 ,  C08F4/00

    CPC classification number: B32B27/06 ,  C08F257/02 ,  Y10S526/943

    Abstract: There is provided a process for producing a styrenic graft copolymer which comprises coplymerizing a styrenic monomer and a styrenic monomer having a hydrocarbon radical with an unsaturated bond in the presence of a catalyst comprising as primary ingredient (A) a transition metal compound and (B) a contact product of an organoaluminum compound and a condensation agent or (C) a compound which produces an ionic complex by reacting with the above-mentioned transition metal compound and subsequently graft polymerizing an ethylenically unsaturated monomer onto the resultant styrenic copolymer.The above-described styrenic graft copolymer is greatly improved in terms of compatibility, adhesivity, coatability and wettability while preserving heat resistance and chemical resistance thereof, and thus effective as a variety of constructional materials and compatibilizing agents. Furthermore, the composition or multi-layer material comprising the above-mentioned styrenic graft copolymer is widely utilized in a variety of application field including film, sheet, especially stampable sheet, container, packaging material, automobile parts, electrical and electronic parts, etc.

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