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    Rubber composition
    11.
    发明公开
    Rubber composition 失效
    橡胶组成

    公开(公告)号：EP0264653A3

    公开(公告)日：1990-03-21

    申请号：EP87113987.9

    申请日：1987-09-24

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Takao, Hiroyoshi ,  Kuribayashi, Hideyuki

    IPC分类号： C08L23/16

    CPC分类号： C08L23/16 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K5/09 ,  C08L2205/025 ,  C08L2312/00 ,  C08L2666/04

    摘要： A rubber composition comprising (I) at least one copolymer rubber selected from the group consisting of ethylene-propylene copolymer rubber and an ethylene-­propylene-nonconjugated diene copolymer rubber and (II) a decomposition product having an intrinsic viscosity of 0.02 - 0.60 dl/g as measured in xylene at 70°C obtained by subjecting at least one copolymer rubber selected from the group consisting of ethylene-propylene copolymer rubber and an ethylene-propylene-nonconjugated diene copolymer rubber to thermal degradation at 300° - ­450°C in the presence of an inert gas. This rubber composition is effectively utilized to produce vulcanized rubber products of ethylene-propylene copolymer rubber and/or ethylene-propylene-nonconjugated diene copolymer rubber.

    摘要翻译： 一种橡胶组合物，其中含有（I）至少一种选自乙烯 - 丙烯共聚物橡胶和乙烯 - 丙烯 - 非共轭二烯共聚物橡胶的共聚物橡胶和（II）特性粘度为0.02-0.60dl / g，在70℃下在二甲苯中测量，所述二甲苯通过将选自乙烯 - 丙烯共聚物橡胶和乙烯 - 丙烯 - 非共轭二烯共聚物橡胶中的至少一种共聚物橡胶在300℃-450℃下在 存在惰性气体。 该橡胶组合物有效地用于生产乙烯 - 丙烯共聚物橡胶和/或乙烯 - 丙烯 - 非共轭二烯共聚物橡胶的硫化橡胶产品。

    Rubber composition for tire treads
    14.
    发明公开
    Rubber composition for tire treads 失效
    KautschukzusammensetzungfürReifenlaufflächen。

    公开(公告)号：EP0265923A2

    公开(公告)日：1988-05-04

    申请号：EP87115816.8

    申请日：1987-10-28

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED ,  SUMITOMO RUBBER INDUSTRIES, CO. LTD

    发明人： Takao, Hiroyoshi ,  Yoshida, Nobuyuki ,  Imai, Akio ,  Tsuji, Mitsuji ,  Saito, Yuichi

    IPC分类号： C08F297/04 ,  B60C1/00

    CPC分类号： C08F297/044 ,  B60C1/0016 ,  Y10S152/905

    摘要： A rubber composition suitable for tire treads having well-balanced excellent wet skid characteristic, ice skid characteristic and rolling characteristic, and an excellent processability, which comprises a rubber component containing at least 20 % by weight of a block copolymer consisting essentially of a block A and a block B, obtained by conducting polymerization of an aromatic vinyl compound and a conjugated diene compound in a hydrocarbon solvent in the presence of an organolithium initiator and modifying with a coupling agent, and satisfying the following conditions (A) to (E);

    (A) the block A having a content of an aromatic vinyl compound of at most 5 % by weight and a content of 1,2-bonds in the conjugated diene component of at least 10 % by weight,
    (B) the block B having a content of an aromatic vinyl compound of 25 to 50 % by weight and a content of 1,2-bonds in the conjugated diene component of at least 10 % by weight,
    (C) a content of the block A in the block copolymer being from 20 to 80 % by weight,
    (D) a content of the aromatic vinyl compound in the block copolymer being from 5 to 30 % by weight and a content of 1,2-bonds in the conjugated diene component of the block copolymer being from 20 to 60 % by weight, and
    (E) at least 40 % by weight of the polymer chains of the block copolymer being a branched polymer formed by modification with a dicarboxylic acid diester.

    摘要翻译： 适用于轮胎胎面的橡胶组合物具有平衡优异的防滑特性，防滑特性和滚动特性，以及优异的加工性能，其包括含有至少20重量％的基本上由块A组成的嵌段共聚物的橡胶组分 和通过在有机锂引发剂的存在下在烃溶剂中进行芳族乙烯基化合物和共轭二烯化合物的聚合而获得的嵌段B，并且用偶联剂进行改性，并满足下列条件（A）至（E）; （A）具有至多5重量％的芳族乙烯基化合物含量和共轭二烯组分中的1,2-键含量为至少10重量％的嵌段A，（B）嵌段B具有 芳香族乙烯基化合物的含量为25〜50重量％，共轭二烯成分中的1,2-键含量为10重量％以上，（C）嵌段共聚物中嵌段A的含量为 20〜80重量％，（D）嵌段共聚物中芳香族乙烯基化合物的含量为5〜30重量％，嵌段共聚物的共轭二烯成分中的1,2-键的含量为 20〜60重量％，（E）嵌段共聚物的聚合物链的至少40重量％为通过用二羧酸二酯改性形成的支链聚合物。 升

    Rubber composition
    15.
    发明公开
    Rubber composition 失效
    Gummizusammensetzung。

    公开(公告)号：EP0264653A2

    公开(公告)日：1988-04-27

    申请号：EP87113987.9

    申请日：1987-09-24

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Takao, Hiroyoshi ,  Kuribayashi, Hideyuki

    IPC分类号： C08L23/16

    CPC分类号： C08L23/16 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K5/09 ,  C08L2205/025 ,  C08L2312/00 ,  C08L2666/04

    摘要： A rubber composition comprising (I) at least one copolymer rubber selected from the group consisting of ethylene-propylene copolymer rubber and an ethylene-­propylene-nonconjugated diene copolymer rubber and (II) a decomposition product having an intrinsic viscosity of 0.02 - 0.60 dl/g as measured in xylene at 70°C obtained by subjecting at least one copolymer rubber selected from the group consisting of ethylene-propylene copolymer rubber and an ethylene-propylene-nonconjugated diene copolymer rubber to thermal degradation at 300° - ­450°C in the presence of an inert gas. This rubber composition is effectively utilized to produce vulcanized rubber products of ethylene-propylene copolymer rubber and/or ethylene-propylene-nonconjugated diene copolymer rubber.

    摘要翻译： 一种橡胶组合物，其包含（I）至少一种选自乙烯 - 丙烯共聚物橡胶和乙烯 - 丙烯 - 非共轭二烯共聚物橡胶的共聚物橡胶和（II）特性粘度为0.02-0.60dl / g，通过在至少一种选自乙烯 - 丙烯共聚物橡胶和乙烯 - 丙烯 - 非共轭二烯共聚物橡胶的共聚物橡胶在300-450℃下进行热降解而获得的，在70℃下在二甲苯中测得的 存在惰性气体。 该橡胶组合物有效地用于生产乙烯 - 丙烯共聚物橡胶和/或乙烯 - 丙烯 - 非共轭二烯共聚物橡胶的硫化橡胶产品。

    Process for recovering rubberlike polymer from solution thereof
    16.
    发明公开
    Process for recovering rubberlike polymer from solution thereof 失效
    从其溶液中回收橡胶聚合物的方法

    公开(公告)号：EP0044511A3

    公开(公告)日：1982-07-21

    申请号：EP81105527

    申请日：1981-07-14

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Harada, Hiroyuki ,  Takao, Hiroyoshi ,  Yamamoto, Keisaku ,  Umezu, Takesi

    IPC分类号： C08F06/12

    CPC分类号： C08F6/12

    摘要： In a process for recovering a rubberlike copolymer from a hydrocarbon or halogenated hydrocarbon solution containing the copolymer, the solution being obtained by copolymerizing ethylene and an a-olefin represented by the general formula CH 2 = CHR, wherein R is a linear or a branched alkyl group of 1 to 6 carbon atoms, or by copolymerizing these and a non-conjugated linear or cyclic diene, in the presence of a catalyst containing an organoaluminum compound and a vanadium compound, the improvement which compriese dispersing the rubber like copolymer solution in hot water in the presence of a block type polyether compound represented by the general formula HO(C 2 H 4 O) a (C 3 H 6 O) b (C 2 H 4 O) c H, wherein a, b and c independently represent numbers of 10 to 1000, to strip the solution and separating the resulting granular copolymer from water to recover it in a granular form.

    摘要翻译： 在从含有该共聚物的烃类或卤代烃溶液中回收橡胶状共聚物的方法中，所述溶液是通过使乙烯和由通式CH 2 = CHR表示的α-烯烃共聚获得的，其中R是直链或支链烷基 或者通过使它们与非共轭线型或环状二烯的共聚合，含有有机铝化合物和钒化合物的催化剂的存在，在橡胶状共聚物溶液的存在下，将橡胶状共聚物溶液分散在热水中 的由通式HO（C 2 H 4 O）a（C 3 H 6 O）b（C 2 H 4 O）c H表示的嵌段型聚醚化合物，其中a，b和c独立地表示数为10至1000，以剥离溶液并将所得颗粒状共聚物从 水以粒状回收。