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    Low molecular weight high-cis polybutadienes and their use in high molecular weight-low molecular weight high-cis polybutadiene blends
    1.
    发明授权
    Low molecular weight high-cis polybutadienes and their use in high molecular weight-low molecular weight high-cis polybutadiene blends 有权
    低分子量高顺式聚丁二烯及其在高分子量低分子量高顺式聚丁二烯共混物中的应用

    公开(公告)号：US06437205B1

    公开(公告)日：2002-08-20

    申请号：US09600150

    申请日：2000-07-10

    申请人： H. Jerrold Miller ,  Tatsuro Hamada ,  Yoichi Ozawa ,  Peyman Pakdel

    发明人： H. Jerrold Miller ,  Tatsuro Hamada ,  Yoichi Ozawa ,  Peyman Pakdel

    IPC分类号： C10L116

    CPC分类号： C08L9/00 ,  C08F36/06 ,  Y02T10/862 ,  C08F4/545 ,  C08L2666/08

    摘要： A process for polymerizing 1,3-butadiene into a low molecular weight high-cis polybutadiene is described using a catalyst system comprising: (a) a neodymium-containing compound, (b) an aluminoxane or a trialkyl aluminum compound, (c) an organoaluminum hydride, and (d) a halogen source. A blend of a high molecular weight high-cis polybutadiene and the low molecular weight high-cis polybutadiene is also disclosed for use in pneumatic tire treads. Desirably both the high and the low molecular weight polymers have high cis contents, with the low molecular weight polymer being at least 70 percent cis and the high molecular weight polymer being at least 92 percent cis. Desirably both polymers are made with a neodymium catalyst system. The blends provide a balance of properties including good snow traction, wet traction, and rolling resistance while providing a balance of good physical properties including tension at break, modulus etc.

    摘要翻译： 使用催化剂体系描述了将1,3-丁二烯聚合成低分子量高顺式聚丁二烯的方法，该催化剂体系包含：（a）含钕化合物，（b）铝氧烷或三烷基铝化合物，（c） 有机铝氢化物，（d）卤素源。 还公开了高分子量高顺式聚丁二烯和低分子量高顺式聚丁二烯的共混物用于充气轮胎胎面。 高分子量聚合物和低分子量聚合物理想地具有高顺式含量，低分子量聚合物为顺式至少70％，高分子量聚合物为顺式至少92％。 理想地，两种聚合物都是用钕催化剂体系制成的。 混合物提供了平衡的性能，包括良好的积雪牵引力，湿牵引力和滚动阻力，同时提供良好的物理性能，包括断裂张力，模量等的平衡。

    Vulcanized rubber composition
    3.
    发明授权
    Vulcanized rubber composition 失效
    硫化橡胶组合物

    公开(公告)号：US5011888A

    公开(公告)日：1991-04-30

    申请号：US449308

    申请日：1989-12-06

    申请人： Fumio Tsutsumi ,  Akihiko Morikawa ,  Mitsuhiko Sakakibara ,  Noboru Oshima ,  Tatsuro Hamada ,  Tatsuo Fujimaki ,  Masayuki Ohashi

    发明人： Fumio Tsutsumi ,  Akihiko Morikawa ,  Mitsuhiko Sakakibara ,  Noboru Oshima ,  Tatsuro Hamada ,  Tatsuo Fujimaki ,  Masayuki Ohashi

    IPC分类号： C08L9/06 ,  B60C1/00 ,  C08F297/04 ,  C08G18/69 ,  C08L21/00 ,  C08L53/00 ,  C08L53/02

    CPC分类号： C08L53/02 ,  B60C1/0016 ,  C08G18/69 ,  C08L21/00 ,  C08G2380/00

    摘要： A rubber composition is disclosed which contains not less than 20% by weight in a rubber component of a block copolymer composed of polymer or copolymer block units (A) and a random copolymer block units (B). The polymer or copolymer block units (A) are obtained by singly polymerizing a conjugated diolefine or copolymerizing the conjugated diolefine and a monovinyl aromatic hydrocarbon with use of a lithium initiator and contains not more than 10% by weight of the bound monovinyl aromatic hydrocarbon. The random copolymer block unit (B) are obtained by copolymerizing the conjugated diolefine and the monovinyl aromatic hydrocarbon and contain 15 to 80% by weight of the bound monovinyl aromatic hydrocarbon. In the block copolymer, (i) the block copolymer contains not less than 10% by weight of each of the block units (A) and the block units (B); (ii) the total content of the bound monovinyl aromatic hydrocarbon is from 10 to 40% by weight; (iii) the average content of the vinyl bonds in the conjugated diolefine portions is from 20 to 70%; and (iv) polymerizable terminals of the block copolymer are reacted with an isocyanate compound.

    摘要翻译： 公开了在由聚合物或共聚物嵌段单元（A）和无规共聚物嵌段单元（B）组成的嵌段共聚物的橡胶组分中不少于20重量％的橡胶组合物。 聚合物或共聚物嵌段单元（A）是通过使共轭二烯烃单独聚合或使用锂引发剂共轭共轭二烯和单乙烯基芳族烃而得到的，并且含有不超过10重量％的结合的单乙烯基芳烃。 无规共聚物嵌段单元（B）通过使共轭二烯烃和单乙烯基芳族烃共聚而得到，并含有15〜80重量％的结合的单乙烯基芳烃。 在嵌段共聚物中，（i）嵌段共聚物含有不少于块单元（A）和嵌段单元（B）的10重量％。 （ii）结合的单乙烯基芳烃的总含量为10〜40重量％ （iii）共轭二烯烃部分中的乙烯基键的平均含量为20〜70％。 和（iv）嵌段共聚物的可聚合端与异氰酸酯化合物反应。

    Stabilizing high-vinyl polybutadiene
    4.
    发明授权
    Stabilizing high-vinyl polybutadiene 有权
    稳定高乙烯基聚丁二烯

    公开(公告)号：US07211619B2

    公开(公告)日：2007-05-01

    申请号：US09923983

    申请日：2001-08-07

    申请人： Luo Steven ,  Koji Masaki ,  Tatsuro Hamada

    发明人： Luo Steven ,  Koji Masaki ,  Tatsuro Hamada

    IPC分类号： C08L9/00 ,  C08K5/13

    CPC分类号： C08L9/00 ,  C08K5/13

    摘要： A stabilized high-vinyl polybutadiene composition comprising a high-vinyl polybutadiene, and an antioxidant defined by the formula where each R1 and R2, which may be the same or different, are mono-valent organic groups, or where each R1, which may be the same or different, is a mono-valent organic group and the two R2 groups join to form a divalent organic group.

    摘要翻译： 一种稳定的高乙烯基聚丁二烯组合物，其包含高乙烯基聚丁二烯和由下式定义的抗氧化剂，其中每个R 1和R 2可以相同或不同 是单价有机基团，或者其中每个R 1可以相同或不同的是一价有机基团，并且两个R 2 O 2基团连接 以形成二价有机基团。

    Process for producing a diolefin polymer or copolymer and a rubber composition containing such a diolefin polymer or copolymer
    6.
    发明授权
    Process for producing a diolefin polymer or copolymer and a rubber composition containing such a diolefin polymer or copolymer 失效
    制备二烯烃聚合物或共聚物的方法和含有这种二烯烃聚合物或共聚物的橡胶组合物

    公开(公告)号：US5527860A

    公开(公告)日：1996-06-18

    申请号：US184217

    申请日：1994-01-21

    申请人： Yoshitaka Yamakawa ,  Kyouyuu Yasuda ,  Iwakazu Hattori ,  Hideaki Yokoyama ,  Tatsuro Hamada

    发明人： Yoshitaka Yamakawa ,  Kyouyuu Yasuda ,  Iwakazu Hattori ,  Hideaki Yokoyama ,  Tatsuro Hamada

    IPC分类号： C08F4/08 ,  C08F4/48 ,  C08F36/04 ,  C08F8/42

    CPC分类号： C08F36/04

    摘要： A process for producing a diolefin polymer or copolymer, comprising the steps of polymerizing 55-100 wt % of a conjugated diolefin with 0-45 wt % of an aromatic vinyl compound as monomers in a hydrocarbon as a solvent, by using initiators: a reaction product [a1] between at least one secondary amine compound (A) and an organic lithium compound and/or a lithium amide compound [a2] of the at least one secondary amine compound (A) as well as a reaction product [b1] between at least one alcohol (B) and an organic lithium compound and/or a lithium alkoxide compound of the at least one alcohol (B). A rubber composition containing not less than 30 wt % of such a diolefin polymer or copolymer with respect to an entire rubber component is also disclosed. This rubber composition exhibits excellent abrasion resistance, high tensile strength, steering stability and low rolling resistance, and is suitable for tires, particularly, as treads of low fuel consumption tires.

    摘要翻译： 一种制备二烯烃聚合物或共聚物的方法，包括以下步骤：通过使用引发剂将55-100重量％的共轭二烯烃与0-45重量％的芳族乙烯基化合物作为单体在烃中作为溶剂聚合：反应 至少一种仲胺化合物（A）的至少一种仲胺化合物（A）和有机锂化合物和/或氨化锂化合物[a2]之间的产物[a1]以及至少一种仲胺化合物（A）的反应产物[b1] 至少一种醇（B）和至少一种醇（B）的有机锂化合物和/或醇锂化合物。 还公开了相对于整个橡胶组分含有不少于30重量％的这种二烯烃聚合物或共聚物的橡胶组合物。 该橡胶组合物表现出优异的耐磨性，高拉伸强度，操纵稳定性和低滚动阻力，并且适用于轮胎，特别是作为低燃料轮胎的胎面。

    Pneumatic tires
    7.
    发明授权
    Pneumatic tires 失效
    气动轮胎

    公开(公告)号：US5409969A

    公开(公告)日：1995-04-25

    申请号：US100339

    申请日：1993-08-02

    申请人： Tatsuro Hamada

    发明人： Tatsuro Hamada

    IPC分类号： B60C1/00 ,  C08C19/44 ,  C08K5/54 ,  C08K3/04

    CPC分类号： C08C19/44 ,  B60C1/0016 ,  C08K5/5406

    摘要： As a tread rubber of a pneumatic tire is used a rubber composition comprising 10-150 parts by weight of a silica filler, 0-150 parts by weight of carbon black and 0.2-10 parts by weight of at least one specified silane coupling agent, based on 100 parts by weight of a particular polymer rubber having a glass transition temperature of not lower than -50.degree. C. through polymerization of 1,3-butadiene or copolymerization of 1,3-butadiene and styrene with an organic alkali metal initiator, or a rubber blend of not less than 30 parts by weight of the above polymer and not more than 70 parts by weight of the other diene series rubber.

    摘要翻译： 作为充气轮胎的胎面橡胶，使用包含10-150重量份二氧化硅填料，0-150重量份炭黑和0.2-10重量份至少一种特定硅烷偶联剂的橡胶组合物， 基于100重量份的具有玻璃化转变温度不低于-50℃的特定聚合物橡胶，通过1,3-丁二烯的聚合或1,3-丁二烯和苯乙烯与有机碱金属引发剂的共聚， 或不小于30重量份的上述聚合物和不大于70重量份的其它二烯系橡胶的橡胶共混物。

    Butadiene-based rubber composition
    8.
    发明授权
    Butadiene-based rubber composition 失效
    丁二烯橡胶组合物

    公开(公告)号：US4824908A

    公开(公告)日：1989-04-25

    申请号：US29558

    申请日：1987-03-24

    申请人： Fumio Tsutsumi ,  Mitsuhiko Sakakibara ,  Noboru Shimada ,  Yoshihisa Fujinaga ,  Noboru Oshima ,  Tatsuro Hamada ,  Tatsuo Fujimaki

    发明人： Fumio Tsutsumi ,  Mitsuhiko Sakakibara ,  Noboru Shimada ,  Yoshihisa Fujinaga ,  Noboru Oshima ,  Tatsuro Hamada ,  Tatsuo Fujimaki

    IPC分类号： B60C1/00 ,  C08C19/44 ,  C08L9/00 ,  C08L21/00 ,  C08L7/00 ,  C08L9/06 ,  C08L53/02

    CPC分类号： B60C1/0025 ,  B60C1/0016 ,  C08C19/44 ,  C08L9/00 ,  Y10S152/905 ,  Y10T152/10846

    摘要： A butadiene-based rubber composition is disclosed, which contains not less than 20% by weight of a butadiene-based homopolymer or copolymer having a glass transition temperature (Tg) of not less than -105.degree. C., but less than -70.degree. C. and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 10 to 150. The butadiene-based homopolymer or copolymer is obtained by polymerizing butadiene or random-copolymerizing butadiene with at least one kind of a monomer selected from the group consisting of another conjugated diene and an aromatic vinyl compound, and then reacting polymerization-active terminals thereof with an isocyanate compound and/or an isothiocyanate compound. The butadiene-based rubber composition has excellent resilience, fracture strength, and wear resistance as a vulcanizate as well as excellent processability as an unvulcanized rubber, and can be used as tire applications such as tire treads, undertreads, sidewalls, bead portions, etc. as well as vibration insulating rubber, hoses, belts and other industrial articles.

    摘要翻译： 公开了一种丁二烯基橡胶组合物，其含有不少于20重量％的玻璃化转变温度（Tg）不低于-105℃但小于-70℃的丁二烯基均聚物或共聚物 丁二烯类均聚物或共聚物是通过将丁二烯或无规共聚丁二烯与至少一种选自以下的单体进行聚合而获得的：丁二烯类均聚物或共聚物 由另一种共轭二烯和芳族乙烯基化合物组成，然后使其聚合活性末端与异氰酸酯化合物和/或异硫氰酸酯化合物反应。 丁二烯类橡胶组合物作为硫化橡胶具有优异的回弹性，断裂强度和耐磨性以及作为未硫化橡胶的优异加工性，并且可以用作轮胎胎面，胎面，胎侧，胎圈部等轮胎用途。 以及隔振橡胶，软管，皮带等工业用品。

    Tires made of silica filled, silane modified rubber
    10.
    发明授权
    Tires made of silica filled, silane modified rubber 失效
    硅胶填充的轮胎，硅烷改性橡胶

    公开(公告)号：US5066721A

    公开(公告)日：1991-11-19

    申请号：US202658

    申请日：1988-05-31

    申请人： Tatsuro Hamada ,  Hiromi Fukuoka ,  Hideki Komatsu ,  Tatsuo Fujimaki

    发明人： Tatsuro Hamada ,  Hiromi Fukuoka ,  Hideki Komatsu ,  Tatsuo Fujimaki

    IPC分类号： B60C1/00 ,  C08C19/44 ,  C08F8/42 ,  C08K3/36 ,  C08L15/00 ,  C08L21/00 ,  C08L25/18

    CPC分类号： B60C1/0016 ,  C08C19/44

    摘要： There is a tire having tire performances such as wear resistance, cut resistance, heat build-up and the like and a processability simultaneously and economically improved by the application of a rubber composition containing a rubbery polymer modified with a silane compound and silica. The rubbery polymer modified with the silane compound is obtained by reacting an active terminal of a living polymer, which is obtained by polymerizing a monomer in the presence of an organic alkali metal catalyst, with a silane compound represented by the following general formula:X.sub.n Si(OR).sub.m R'.sub.4-m-n(where X is a halogen atom selected from a chlorine atom, a bromine atom and an iodine atom, OR is a non-hydrolyzable alkoxy group having a carbon number of 4.about.20, an aryloxy group or a cycloalkoxy group, R' is an alkyl group having a carbon number of 1.about.20, an aryl group, a vinyl group or a halogenated alkyl group, m is an integer of 1.about.4, n is an integer of 0.about.2, and a sum of n and m is 2.about.4), which is contained in an amount of not less than 10% by weight as a rubber ingredient, and silica is contained in an amount of 5.about.200 parts by weight based on 100 parts by weight of the rubber ingredient.