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    Branched styrene-butadiene copolymers and pneumatic tires using the same
    3.
    发明授权
    Branched styrene-butadiene copolymers and pneumatic tires using the same 失效
    支链苯乙烯 - 丁二烯共聚物和使用其的充气轮胎

    公开(公告)号：US4526934A

    公开(公告)日：1985-07-02

    申请号：US473394

    申请日：1983-03-08

    申请人： Noboru Oshima ,  Isamu Shimizu ,  Yoshito Yoshimura ,  Tatsuo Fujimaki ,  Seisuke Tomita

    发明人： Noboru Oshima ,  Isamu Shimizu ,  Yoshito Yoshimura ,  Tatsuo Fujimaki ,  Seisuke Tomita

    IPC分类号： B60C1/00 ,  C08C19/44 ,  C08F8/42

    CPC分类号： C08C19/44 ,  B60C1/0016

    摘要： A branched styrene-butadiene copolymer and a pneumatic tire using the same as a tread base rubber are disclosed. This copolymer is produced by coupling an active styrene-butadiene copolymer anion, which is obtained by polymerizing styrene and butadiene in a hydrocarbon solvent in the presence of ether or a tertiary amine and an initiator of an organolithium compound, with a tin halide compound. In the copolymer, the ratio of branched copolymer connected with tin-butadienyl bond is at least 20% by weight, and the content of bound styrene is not less than 3% by weight but less than 25% by weight, and the content of vinyl bond in butadiene portion is not less than 30% but less than 50%.

    摘要翻译： 公开了一种支化苯乙烯 - 丁二烯共聚物和使用该共聚物作为胎面基橡胶的充气轮胎。 该共聚物是通过在醚或叔胺和有机锂化合物的引发剂存在下在烃溶剂中将苯乙烯和丁二烯聚合得到的活性苯乙烯 - 丁二烯共聚物阴离子与卤化锡化合物而制备的。 在共聚物中，与锡 - 丁二烯基键相连的支链共聚物的比例为至少20重量％，结合苯乙烯的含量不小于3重量％但小于25重量％，乙烯基含量 丁二烯部分中的键不小于30％但小于50％。

    Butadiene-base polymer and a process for producing the same
    4.
    发明授权
    Butadiene-base polymer and a process for producing the same 失效
    丁二烯基聚合物及其制备方法

    公开(公告)号：US4540744A

    公开(公告)日：1985-09-10

    申请号：US701438

    申请日：1985-02-12

    申请人： Noboru Oshima ,  Isamu Shimizu ,  Yoshito Yoshimura

    发明人： Noboru Oshima ,  Isamu Shimizu ,  Yoshito Yoshimura

    IPC分类号： C08F4/00 ,  C08C19/44 ,  C08F4/42 ,  C08F8/42 ,  C08F36/00 ,  C08F36/04 ,  C08F236/00 ,  C08F236/10 ,  C08L9/00 ,  C08L21/00

    CPC分类号： C08C19/44 ,  C08F36/04 ,  Y10S525/901

    摘要： A butadiene-base polymer containing a branched polymer through tin-carbon bond and a process for producing the same are disclosed. The butadiene-base polymer is produced by polymerizing 1,3-butadiene alone or 1,3-butadiene and aromatic vinyl compound in a hydrocarbon solvent in the presence of a Lewis base using an organolithium compound as an initiator and then coupling with a tin halide, and satisfies the following requirements:(1) a content of a bound aromatic vinyl compound in the butadiene-base polymer is 0-40% by weight;(2) a ratio of vinyl bond-containing butadiene unit in the toal butadiene unit of the butadiene-base polymer is 30-90%;(3) a ratio of the branched polymer in the butadiene-base polymer is at least 30% by weight; and(4) a ratio of a component having a molecular weight of less than 100,000 as polystyrene in the molecular weight distribution as measured by a gel permeation chromatography is 10-20% by weight.

    摘要翻译： 公开了含有通过锡 - 碳键的支化聚合物的丁二烯基聚合物及其制备方法。 丁二烯基聚合物通过使用有机锂化合物作为引发剂在路易斯碱存在下在烃溶剂中在单独的1,3-丁二烯和1,3-丁二烯和芳香族乙烯基化合物上聚合，然后与卤化锡 ，并且满足以下要求：（1）丁二烯基聚合物中结合的芳香族乙烯基化合物的含量为0〜40重量％ （2）丁二烯类聚合物的丁二烯单元中的含乙烯基键的丁二烯单元的比例为30〜90％。 （3）丁二烯类聚合物中的支链聚合物的比例为30重量％以上。 和（4）通过凝胶渗透色谱法测定的分子量分布中聚苯乙烯的分子量小于100,000的成分的比例为10〜20重量％。

    Alkenyl aromatic compound-conjugated diene block copolymer and process for the production thereof
    5.
    发明授权
    Alkenyl aromatic compound-conjugated diene block copolymer and process for the production thereof 失效
    烯基芳香族化合物 - 共轭二烯嵌段共聚物及其制造方法

    公开(公告)号：US4603155A

    公开(公告)日：1986-07-29

    申请号：US586442

    申请日：1984-03-05

    申请人： Kunihiko Muramori ,  Kazuo Yamamoto ,  Noboru Oshima ,  Yoshito Yoshimura

    发明人： Kunihiko Muramori ,  Kazuo Yamamoto ,  Noboru Oshima ,  Yoshito Yoshimura

    IPC分类号： C08F297/04 ,  C08F293/00

    CPC分类号： C08F297/04

    摘要： An alkenyl aromatic compound-conjugated diene block copolymer having a combined alkenyl aromatic compound content of 25-95% by weight, characterized in that said copolymer is represented by the formula,A--B--Awherein A represents an alkenyl aromatic compound polymer block, the total amount of A's in both ends being 50-97% by weight of the total combined alkenyl aromatic compound content; B represents a conjugated diene-alkenyl aromatic compound copolymer block, said B portion having (a) 2-10 taper blocks where the amount of the alkenyl aromatic compound increases gradually and (b) a weight ratio of alkenyl aromatic compound/conjugated diene of 3-85/97-15; and the total amount of the chains that 1-4 alkenyl aromatic compound monomers are linked is 5-30% by weight of the total combined alkenyl aromatic compound content. Said copolymer is excellent in the balance of impact strength, tensile strength and elongation.

    摘要翻译： 烯基芳族化合物 - 共轭二烯嵌段共聚物，其具有25-95重量％的组合烯基芳族化合物含量，其特征在于所述共聚物由下式表示：ABA，其中A表示烯基芳族化合物聚合物嵌段， A两端的总链烯基芳族化合物含量为50-97重量％ B表示共轭二烯 - 烯基芳族化合物共聚物嵌段，所述B部分具有（a）2-10个渐缩嵌段，其中链烯基芳族化合物的量逐渐增加，（b）链烯基芳族化合物/共轭二烯的重量比为3 -85 / 97-15; 1-4链烯基芳族化合物单体连接的链的总量为总链烯基芳族化合物含量的5-30重量％。 所述共聚物的冲击强度，拉伸强度和伸长率的平衡优异。

    High vinyl polybutadiene or styrene-butadiene copolymer
    6.
    发明授权
    High vinyl polybutadiene or styrene-butadiene copolymer 失效
    高乙烯基聚丁二烯或苯乙烯 - 丁二烯共聚物

    公开(公告)号：US4397994A

    公开(公告)日：1983-08-09

    申请号：US303518

    申请日：1981-09-18

    申请人： Yasumasa Takeuchi ,  Yoshito Yoshimura ,  Noboru Ohshima ,  Mitsuhiko Sakakibara ,  Akira Tsuji

    发明人： Yasumasa Takeuchi ,  Yoshito Yoshimura ,  Noboru Ohshima ,  Mitsuhiko Sakakibara ,  Akira Tsuji

    IPC分类号： B65H75/40 ,  C08C19/44 ,  C08F2/06 ,  C08F4/46 ,  C08F8/42 ,  C08F8/44 ,  C08F30/04 ,  C08F30/10 ,  C08F36/06 ,  C08F212/08 ,  C08G81/02 ,  C08L9/00 ,  C08L9/06 ,  C08L25/04 ,  D21H13/44 ,  C08F8/18

    CPC分类号： D21H13/44 ,  C08C19/44 ,  C08G81/022 ,  D21H5/186

    摘要： High vinyl polybutadiene or styrene-butadiene copolymer obtained by polymerizing 1,3-butadiene alone or with styrene in a hydrocarbon solvent using an organolithium compound as an initiator and coupling the resulting polymer, characterized in that(1) the polybutadiene or styrene-butadiene copolymer comprises at least 20% by weight of a polymer having in its molecular chain a linkage between butadienyl and at least one metal selected from the group consisting of silicon, germanium, tin and lead,(2) the styrene content of said copolymer is 40% by weight or less, and(3) the polybutadiene or the butadiene portion of the styrene-butadiene copolymer has a vinyl content of 50 to 95%.Said polybutadiene or styrene-butadiene copolymer has low rolling resistance, high wet skid resistance, highly improved fracture property and, an excellent processability.

    摘要翻译： 通过使用有机锂化合物作为引发剂在烃溶剂中单独或与苯乙烯聚合而获得的高乙烯基聚丁二烯或苯乙烯 - 丁二烯共聚物，并将所得聚合物偶联，其特征在于（1）聚丁二烯或苯乙烯 - 丁二烯共聚物 包含至少20重量％的聚合物，其分子链中是丁二烯基与选自硅，锗，锡和铅中的至少一种金属之间的连接，（2）所述共聚物的苯乙烯含量为40％ 以下，（3）苯乙烯 - 丁二烯共聚物的聚丁二烯或丁二烯部分的乙烯基含量为50〜95％。 所述聚丁二烯或苯乙烯 - 丁二烯共聚物具有低滚动阻力，高抗湿滑性，高度改善的断裂性能和优异的加工性能。