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。

公开(公告)号：US5496883A

公开(公告)日：1996-03-05

申请号：US360445

申请日：1994-12-21

申请人： Tatsuro Hamada

发明人： Tatsuro Hamada

IPC分类号： B60C1/00 ,  C08C19/44 ,  C08K5/54 ,  C08K3/36

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.

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。

公开(公告)号：US5753365A

公开(公告)日：1998-05-19

申请号：US596755

申请日：1996-02-05

申请人： Yoshiyuki Morimoto ,  Koji Yamauchi ,  Seiichiro Iwafune ,  Tatsuro Hamada ,  Masanori Aoyama ,  Eiji Yamanaka ,  Koichi Nagakura ,  Koji Ishiguchi

发明人： Yoshiyuki Morimoto ,  Koji Yamauchi ,  Seiichiro Iwafune ,  Tatsuro Hamada ,  Masanori Aoyama ,  Eiji Yamanaka ,  Koichi Nagakura ,  Koji Ishiguchi

IPC分类号： B60C1/00 ,  C08L21/00 ,  B60C11/00

CPC分类号： B60C1/0016 ,  B60C11/005 ,  C08L21/00 ,  Y10T152/10279 ,  Y10T428/29 ,  Y10T428/2982 ,  Y10T428/2998

摘要： A rubber composition includes a rubber component and particulates of a crystalline syndiotactic-1,2-polybutadiene resin dispersed therein. The particulates have an average particle diameter of 1 to 500 .mu.m, and the melting point of the crystalline syndiotactic-1,2-polybutadiene resin is not less than 110.degree. C. The compounding ratio of the resin is 5 to 60 parts by weight relative to 100 parts by weight of the rubber component. The rubber composition is useful for tires, other rubber articles, etc. With respect to tires in particular, a pneumatic tire includes a rubber composition used for a tread, wherein the rubber composition includes a rubber component and particulates of crystalline syndiotactic-1,2-polybutadiene resin. The matrix portion of the tread rubber other than the above particulates is preferably a foamed rubber.

摘要翻译： 橡胶组合物包括分散在其中的橡胶组分和结晶间规-1,2-聚丁二烯树脂的颗粒。 颗粒的平均粒径为1〜500μm，结晶间规-1,2-聚丁二烯树脂的熔点不低于110℃。树脂的配混比为5〜60重量份 相对于100重量份的橡胶组分。 橡胶组合物可用于轮胎，其它橡胶制品等。对于轮胎而言，特别地，充气轮胎包括用于胎面的橡胶组合物，其中橡胶组合物包括橡胶组分和晶体间同立构-1,2 聚丁二烯树脂。 除了上述颗粒之外的胎面橡胶的基质部分优选是发泡橡胶。

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。

公开(公告)号：US06407166B1

公开(公告)日：2002-06-18

申请号：US09252566

申请日：1999-02-18

申请人： Xiaorong Wang ,  Victor J. Foltz ,  Edward D. Kelley ,  Tatsuro Hamada ,  Michael W. Hayes

发明人： Xiaorong Wang ,  Victor J. Foltz ,  Edward D. Kelley ,  Tatsuro Hamada ,  Michael W. Hayes

IPC分类号： C08L2100

CPC分类号： C08L21/00 ,  C08L2666/02

摘要： A vulcanizate that has improved damping properties where the vulcanizate is prepared by the steps comprising blending an unsaturated damping additive within a vulcanizable composition of matter, wherein the vulcanizable composition of matter includes a vulcanizable elastomer, and effecting vulcanization of the elastomer.

摘要翻译： 一种具有改进的阻尼性能的硫化橡胶，其中硫化橡胶通过以下步骤制备，所述步骤包括将不饱和阻燃添加剂混合在可硫化的物质组合物内，其中可硫化的物质组合物包括可硫化的弹性体，并且进行弹性体的硫化。