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33 条记录 (耗时 0.028 秒)

    Block copolymer and polymer composition comprising the same
    31.
    发明授权
    Block copolymer and polymer composition comprising the same 有权
    嵌段共聚物和包含其的聚合物组合物

    公开(公告)号：US06228946B1

    公开(公告)日：2001-05-08

    申请号：US09343519

    申请日：1999-06-30

    申请人： Koji Kitayama ,  Kenichi Hamada ,  Makoto Akai ,  Kazushige Ishiura

    发明人： Koji Kitayama ,  Kenichi Hamada ,  Makoto Akai ,  Kazushige Ishiura

    IPC分类号： C08F2502

    CPC分类号： C08L53/005 ,  C08F297/02 ,  C08F297/026 ,  C08L2666/02 ,  C08L2666/04

    摘要： A block copolymer comprising, in a main chain thereof, a crystalline polymer block A obtained by hydrogenation of at least 80% of unsaturated bonds of a butadiene-based polymer block having a 1,2-bond content less than 20%, a polymer block B having a glass transition point of 20° C. or lower and a polymer block C composed mainly of a methacrylate ester unit and/or an acrylate ester unit and having a glass transition point exceeding 20° C. has good elastomeric properties, excellent weather resistance, solvent resistance and heat resistance and has good affinity with each of a polar polymer and non-polar polymer. A polymer composition comprising said block copolymer effectively exhibits the above-described characteristics of the block copolymer.

    摘要翻译： 一种嵌段共聚物，在其主链中包含通过氢化至少80％的具有小于20％的1,2-键含量的丁二烯基聚合物嵌段的不饱和键获得的结晶聚合物嵌段A，聚合物嵌段 B的玻璃化转变点为20℃以下，主要由甲基丙烯酸酯单元和/或丙烯酸酯单元构成的玻璃化转变点超过20℃的聚合物嵌段C具有良好的弹性，良好的天气 电阻，耐溶剂性和耐热性，并且与极性聚合物和非极性聚合物中的每一种具有良好的亲和性。 包含所述嵌段共聚物的聚合物组合物有效地表现出上述嵌段共聚物的特性。

    Polymer compositions and usage thereof
    32.
    发明授权
    Polymer compositions and usage thereof 失效
    聚合物组合物及其用途

    公开(公告)号：US5895797A

    公开(公告)日：1999-04-20

    申请号：US877709

    申请日：1997-06-18

    申请人： Hiroshi Hayashihara ,  Kenji Shachi ,  Kazushige Ishiura

    发明人： Hiroshi Hayashihara ,  Kenji Shachi ,  Kazushige Ishiura

    IPC分类号： B32B27/08 ,  C08L23/08 ,  C08L29/04 ,  C08L53/00 ,  C08F216/06

    CPC分类号： C08L23/08 ,  B32B27/08 ,  C08L29/04 ,  C08L53/00 ,  C08L2205/04

    摘要： Disclosed is a polymer composition which comprises as the main components an ethylene-vinyl alcohol base copolymer (A) and a block copolymer (B) which has a polymer block containing an aromatic vinyl monomer unit and a polymer block containing an isobutylene unit, and in which a phase composed of said component (A) and a phase composed of said component (B) are separated each other. This polymer composition has good flexibility or rubber elasticity and also good barrier properties to gases or the like and it can be molded or formed into a product having such properties without a vulcanization step so that it is useful as a material for packaging material for food or drink, container packing, medical container for infusion fluid or the like.

    摘要翻译： 公开了一种聚合物组合物，其包含作为主要成分的乙烯 - 乙烯醇基共聚物（A）和嵌段共聚物（B），其具有含有芳族乙烯基单体单元的聚合物嵌段和含有异丁烯单元的聚合物嵌段， 由所述组分（A）和由所述组分（B）组成的相组成的相彼此分离。 该聚合物组合物具有良好的柔性或橡胶弹性，并且对气体等具有良好的阻隔性能，并且可以在没有硫化步骤的情况下将其模制或成型为具有这些性能的产品，使得其可用作食品包装材料或 饮料，容器包装，输液用医疗容器等。