利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

38 条记录 (耗时 0.014 秒)

    Rubber composition for tire treads
    2.
    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 for tire treads
    3.
    发明公开
    Rubber composition for tire treads 失效
    轮胎用橡胶组合物

    公开(公告)号：EP0265923A3

    公开(公告)日：1989-07-26

    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.

    Vulcanizable epoxy group-containing elastomer compositions
    6.
    发明公开
    Vulcanizable epoxy group-containing elastomer compositions 失效
    含氟环氧基团的弹性体组合物

    公开(公告)号：EP0351091A3

    公开(公告)日：1992-03-04

    申请号：EP89306526.8

    申请日：1989-06-27

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Yamamoto, Keisaku ,  Yoshida, Nobuyuki ,  Fukuyama, Masahiro ,  Ichinose, Masahiro

    IPC分类号： C08K13/02 ,  C08F8/00

    CPC分类号： C08F8/44 ,  C08K13/02 ,  C08L33/08

    摘要： A vulcanizable elastomer composition comprises a mixture of
    (A) an elastomer containing (as cross-linking sites) an epoxy group - eg. glycidyl(meth)acrylate or copolymer of an epoxy monomer; (B) an organic compound (aliphatic, aromatic or heterocyclic) having at least two linkages, per molecule, of formula
    wherein X and Y are each an oxygen or sulfur atom, or one of X and Y is oxygen and the other is sulfur; (C) a quaternary ammonium salt and/or a quarternary phosphonium salt; (D) a compound having one linkage, per molecule, of the formula
    wherein Z is an oxygen or sulfur atom; and (E) calcium oxide or calcium oxide and calcium hydroxide. Preferred amounts are in parts by weight: 100 of (A), 0.1-10 of (B), 0.1-10 of (C), 0.1-10 of (D) and 0.1-20 of CaO. The components (B) to (E) are mixed with (A) and the composition molded to shape and can be vulcanised at at least 120" C to make seals, hoses, belts or rollers.

    Elastomeric copolymer of aromatic vinyl compounds and butadiene
    9.
    发明公开
    Elastomeric copolymer of aromatic vinyl compounds and butadiene 失效
    芳族乙烯基化合物和二苯乙烯的弹性共聚物

    公开(公告)号：EP0153697A3

    公开(公告)日：1987-02-04

    申请号：EP85101864

    申请日：1985-02-21

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED ,  SUMITOMO RUBBER INDUSTRIES LIMITED

    发明人： Yoshida, Nobuyuki ,  Okamoto, Yasushi ,  Imai, Akio ,  Seki, Tomoaki ,  Furukawa, Hiroshi ,  Saito, Yuichi

    IPC分类号： C08C19/44

    CPC分类号： C08C19/44

    摘要： An elastomeric copolymer of an aromatic vinyl compound and butadiene prepared by a solution polymerization method, which has a glass transition temperature of not less than -50°C and contains polymer chains modified with a trifunctional or tetrafunctional coupling agent, and which contains not less than 3 % by weight to less than 23 % by weight, based on the whole polymer chains, of polymer chains having a molecular weight of at least 5 times a molecular weight corresponding to a peak appearing on the low molecular weight side of a high performance liquid chromatogram of the elastomeric copolymer. The elastomer- ic copolymer has an excellent processability and shows a low rolling resistance and a high wet grip characteristic when used as a rubber component in tires.