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    Diene rubber composition and tire using it in tread
    2.
    发明授权
    Diene rubber composition and tire using it in tread 失效
    二烯橡胶组合物和轮胎使用它在胎面

    公开(公告)号：US4482678A

    公开(公告)日：1984-11-13

    申请号：US525698

    申请日：1983-08-23

    申请人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Nobuyuki Yoshida ,  Yasushi Okamoto

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

    IPC分类号： C08L7/00 ,  B60C1/00 ,  B60C11/00 ,  C08C19/44 ,  C08L9/00 ,  C08L21/00 ,  C08L9/06

    CPC分类号： B60C1/0016 ,  C08C19/44 ,  C08L9/00

    摘要： A diene rubber composition comprising as a main rubber component an elastomeric polymer having a glass transition temperature of not less than -50.degree. C. selected from the group consisting of a butadiene homopolymer and a copolymer of butadiene and an aromatic vinyl compound, said elastomeric polymer being one prepared by a solution polymerization method and not less than 40% by weight to less than 65% by weight of the polymer chains thereof being branched polymer chains formed by coupling the polymer molecules with each other with a trifunctional or tetrafunctional coupling agent. The composition has excellent rolling resistance characteristic, wet grip characteristic, processability, tear strength and tackiness, and is suitable particularly for use in the tread portion of tires.

    摘要翻译： 一种二烯橡胶组合物，其包含玻璃化转变温度不低于-50℃的弹性体聚合物作为主要橡胶组分，所述玻璃化转变温度选自丁二烯均聚物和丁二烯与芳族乙烯基化合物的共聚物，所述弹性体聚合物 是通过溶液聚合法制备的，其不低于40重量％至小于65重量％的聚合物链是通过用三官能或四官能偶联剂将聚合物分子彼此连接而形成的支链聚合物链。 组合物具有优异的滚动阻力特性，湿抓地性，加工性，撕裂强度和粘性，并且特别适用于轮胎的胎面部分。

    Elastomeric copolymer of aromatic vinyl compounds and butadiene
    3.
    发明授权
    Elastomeric copolymer of aromatic vinyl compounds and butadiene 失效
    芳族乙烯基化合物和丁二烯的弹性共聚物

    公开(公告)号：US4743652A

    公开(公告)日：1988-05-10

    申请号：US5400

    申请日：1987-02-02

    申请人： Nobuyuki Yoshida ,  Yasushi Okamoto ,  Akio Imai ,  Tomoaki Seki ,  Hiroshi Furukawa ,  Yuichi Saito

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

    IPC分类号： C08F236/00 ,  C08C19/30 ,  C08C19/44 ,  C08F8/00 ,  C08F212/00 ,  C08F212/06 ,  C08F236/10 ,  C08F8/42

    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.degree. 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 elastomeric 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.

    摘要翻译： 通过溶液聚合法制备的芳族乙烯基化合物和丁二烯的弹性体共聚物，其具有不低于-50℃的玻璃化转变温度，并且包含用三官能或四官能偶联剂改性的聚合物链，并且不少于 基于整个聚合物链，分子量至少为分子量的5倍的聚合物链的3重量％至小于23重量％，该分子量对应于高性能的低分子量侧上出现的峰 弹性共聚物的液相色谱图。 弹性体共聚物在轮胎中用作橡胶组分时具有优异的加工性能，并且具有低滚动阻力和高湿抓地性能。

    Conjugated diene block polymer and process for preparing the same
    6.
    发明授权
    Conjugated diene block polymer and process for preparing the same 失效
    共轭二烯嵌段聚合物及其制备方法

    公开(公告)号：US4436873A

    公开(公告)日：1984-03-13

    申请号：US477583

    申请日：1983-03-21

    申请人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Keisaku Yamamoto ,  Hiroyoshi Takao ,  Nobuyuki Yoshida

    发明人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Keisaku Yamamoto ,  Hiroyoshi Takao ,  Nobuyuki Yoshida

    IPC分类号： C08F297/00 ,  C08F136/04 ,  C08F297/02

    CPC分类号： C08F297/02 ,  C08F136/04

    摘要： A conjugated diene block polymer composed of blocks having a different microstructure from each other such that one block contains 20 to 60% by mole of 1,2- and/or 3,4-bonding, the other block contains 50 to 90% by mole of 1,2- and/or 3,4-bonding, the difference in the 1,2- and/or 3,4-bonding content between the both blocks is from 20 to 50% mole and the average content of 1,2- and/or 3,4-bonding in the polymer is from 50 to 85% by mole. The block polymer has a high wet skid resistance and a low dynamic heat generating property, and is very useful as a material for automobile tires.

    摘要翻译： 共轭二烯嵌段聚合物由具有彼此不同微结构的嵌段组成，使得一个嵌段含有20至60摩尔％的1,2-和/或3,4-键，另一个嵌段含有50至90摩尔％ 的1,2-和/或3,4-键，两个嵌段之间的1,2-和/或3,4-键含量的差异为20-50％摩尔，平均含量为1,2 - 和/或3,4-键在聚合物中为50-85摩尔％。 嵌段聚合物具有高的抗湿滑性和低动态发热性，并且作为汽车轮胎的材料是非常有用的。

    Rubber composition for tire tread
    8.
    发明授权
    Rubber composition for tire tread 失效
    轮胎胎面橡胶组合物

    公开(公告)号：US4737535A

    公开(公告)日：1988-04-12

    申请号：US817949

    申请日：1985-12-17

    申请人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Nobuyuki Yoshida

    发明人： Hiroshi Furukawa ,  Yuichi Saito ,  Akio Imai ,  Nobuyuki Yoshida

    IPC分类号： C08L7/00 ,  B60C1/00 ,  C08K3/04 ,  C08K5/04 ,  C08K5/10 ,  C08K5/11 ,  C08K13/02 ,  C08L9/06 ,  C08L21/00

    CPC分类号： C08K5/10 ,  B60C1/0016 ,  C08L21/00

    摘要： A tire tread rubber composition which is improved in grip characteristic, steering stability characteristics and low-temperature characteristics, containing 15 to 50 parts by weight of a particular styrene-butadiene rubber obtained by solution polymerization containing polymer chains modified with trifunctional and/or tetrafunctional coupling agents, 50 to 85 parts by weight of at least one rubber selected from the group consisting of emulsion-polymerized styrene-butadiene rubber, natural rubber, synthetic polyisoprene rubber and butadiene rubber, at least one compound as plasticizer selected from the group consisting of a sebacic acid ester, an adipic acid ester and a fatty acid ester, and carbon black having an average particle size of not more than 30 m.mu..

    摘要翻译： PCT No.PCT / JP85 / 00217 Sec。 371日期1985年12月17日第 102（e）日期1985年12月17日PCT申请1985年4月18日PCT公布。 公开号WO85 / 04888 日期：1985年11月7日。一种改进了抓地性能，操纵稳定特性和低温特性的胎面橡胶组合物，其含有15〜50重量份通过溶液聚合得到的特定苯乙烯 - 丁二烯橡胶， 使用三官能和/或四官能偶联剂，50至85重量份的选自乳液聚合的丁苯橡胶，天然橡胶，合成聚异戊二烯橡胶和丁二烯橡胶中的至少一种橡胶，至少一种化合物作为增塑剂 选自癸二酸酯，己二酸酯和脂肪酸酯，平均粒径不大于30μm的碳黑。

    Rubber composition of tire tread containing block copolymer coupled with dicarboxylic acid ester
    9.
    发明授权
    Rubber composition of tire tread containing block copolymer coupled with dicarboxylic acid ester 失效
    含有二羧酸酯的嵌段共聚物的轮胎胎面橡胶组合物

    公开(公告)号：US4918142A

    公开(公告)日：1990-04-17

    申请号：US320836

    申请日：1989-03-08

    申请人： Yuichi Saito ,  Takuzoh Yabuta ,  Hiroyoshi Takao ,  Akio Imai ,  Mitsuji Tsuji

    发明人： Yuichi Saito ,  Takuzoh Yabuta ,  Hiroyoshi Takao ,  Akio Imai ,  Mitsuji Tsuji

    IPC分类号： B29D30/52 ,  B60C1/00 ,  C08F297/04 ,  C08L21/00 ,  C08L53/00 ,  C08L53/02

    CPC分类号： C08L21/00 ,  B60C1/0016 ,  C08F297/044 ,  C08L53/02 ,  C08L9/06

    摘要： A rubber composition suitable for tire treads having well-balanced excellent steering stability in cornering, wet skid characteristic, ice skid characteristic and rolling characteristic, and an excellent processability, which comprises a rubber component containing 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 5 to 29% by weight and a content of 1,2-bonds in the conjugated diene component of 25 to 55% by weight,(B) the block B having a content of an aromatic vinyl compound of 35 to 60% by weight and a content of 1,2-bonds in the conjugated diene component of 20 to 70% by weight,(C) the content of the block A in the block copolymer being from 20 to 80% by weight,(D) the average content of the aromatic vinyl compound in the block copolymer being from 20 to 40% by weight and the average 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 trifunctional or tetrafunctional coupling agent.

    摘要翻译： 一种适用于轮胎胎面的橡胶组合物，其具有平衡优异的转弯转向稳定性，防滑特性，防滑特性和滚动特性以及优异的加工性能，其包括含有基本上由块A和 嵌段B，其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，并且用偶联剂进行改性，并满足以下条件（A）至（E）; （A）具有5〜29重量％的芳族乙烯基化合物的含量和共轭二烯组分中的1,2-键含量为25〜55重量％的嵌段A，（B）嵌段B具有 35〜60重量％的芳香族乙烯基化合物的含量和共轭二烯成分中的1,2-键含量为20〜70重量％，（C）嵌段共聚物中嵌段A的含量为 20〜80重量％，（D）嵌段共聚物中芳族乙烯基化合物的平均含量为20〜40重量％，嵌段共聚物的共轭二烯成分中的1,2-键的平均含量 为20〜60重量％，（E）嵌段共聚物的聚合物链的至少40重量％为通过三官能或四官能偶合剂改性形成的支链聚合物。

    Rubber composition for tire treads containing dicarboxylic acid diester coupled block polymers
    10.
    发明授权
    Rubber composition for tire treads containing dicarboxylic acid diester coupled block polymers 失效
    含有二羧酸二酯偶联嵌段聚合物的轮胎胎面橡胶组合物

    公开(公告)号：US4812527A

    公开(公告)日：1989-03-14

    申请号：US112989

    申请日：1987-10-27

    申请人： Hiroyoshi Takao ,  Nabuyuki Yoshida ,  Akio Imai ,  Mitsuji Tsuji ,  Yuichi Saito

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

    IPC分类号： B60C1/00 ,  C08F297/04 ,  C08L53/00 ,  C08L53/02

    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： 一种适用于轮胎胎面的橡胶组合物，具有平衡优异的湿滑特性，防滑特性和滚动特性，以及优异的加工性，其包含含有至少20重量％的基本上由块A 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，并满足以下条件（A）〜（E）; （A）具有至多5重量％的芳族乙烯基化合物含量的嵌段A和共轭二烯组分中的1,2-键的含量为至少10重量％，（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）嵌段共聚物中的嵌段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-键含量为 20至60重量％，和（E）至少40重量％的嵌段共聚物的聚合物链是通过用二羧酸二酯改性形成的支化聚合物。