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10 条记录 (耗时 0.011 秒)

    Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
    1.
    发明公开
    Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst 有权
    使用有机镧系元素的盐作为催化剂的1,4-反式聚丁二烯的制备

    公开(公告)号：EP0903357A1

    公开(公告)日：1999-03-24

    申请号：EP98116879.2

    申请日：1998-09-07

    申请人： Bridgestone Corporation

    发明人： Lynch, Thomas J.

    IPC分类号： C08F36/04 ,  C08F4/54

    CPC分类号： C08F36/04 ,  C08F4/545

    摘要： The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.

    摘要翻译： 本发明提供了一种催化剂组合物，包括：（a）有机锂化合物; 和，（b）至镧系元素的有机酸盐; worin：（1）仅组分（a）和（b）是必需的，以促进1,4-反式聚丁二烯的合成; （2）组分（a）与组分（b）的比率被选择以最大化的形成。所述1,4-反式聚丁二烯的反式结构的; 和，（3）组分（a）和（b）被选择用于实现另外的二嵌段的合成。 本发明还考虑一种使用该催化剂来合成1,4-反式聚丁二烯和其它聚合物和共聚物具有供稿的共轭二烯单体单元反式构型的方法。

    Amine-initiated elastomers having a hysteresis reducing interaction with silica
    2.
    发明公开
    Amine-initiated elastomers having a hysteresis reducing interaction with silica 失效
    胺类活性炭弹性体

    公开(公告)号：EP0890587A1

    公开(公告)日：1999-01-13

    申请号：EP98112479.5

    申请日：1998-07-06

    申请人： Bridgestone Corporation

    发明人： Hergenrother, William L. ,  Lynch, Thomas J.

    IPC分类号： C08F36/04 ,  C08C19/44 ,  C08K3/36 ,  C08F4/48 ,  C08F4/08

    CPC分类号： C08K3/36 ,  C08C19/44 ,  C08F36/04 ,  Y02T10/862 ,  Y10S152/905 ,  Y10T152/10495 ,  C08F4/48 ,  C08F4/086 ,  C08L15/00 ,  C08L19/006

    摘要： The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino group producing terminator to form an amine functionalized diene elastomer; compounding the amine functionalized diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits decreased rolling resistance in the tire.

    摘要翻译： 通过将二烯单体和任选的单乙烯基芳族单体与锂胺引发剂和任选的改性剂混合来制备二氧化硅填充的硫化弹性体化合物中的滞后的降低; 影响聚合条件; 用氨基产生终止剂终止聚合以形成胺官能化二烯弹性体; 将胺官能化二烯弹性体与无定形二氧化硅填料和硫化剂混合; 并进行硫化。 掺入硫化弹性体复合材料的充气轮胎胎面涂料在轮胎中表现出降低的滚动阻力。

    Organo zinc and rare earth catalyst system in the polymerization of conjugated dienes
    6.
    发明公开
    Organo zinc and rare earth catalyst system in the polymerization of conjugated dienes 审中-公开
    催化剂基于共轭二烯的聚合在有机锌化合物和稀土金属

    公开(公告)号：EP0964008A1

    公开(公告)日：1999-12-15

    申请号：EP99111029.7

    申请日：1999-06-11

    申请人： Bridgestone Corporation

    发明人： Lynch, Thomas J.

    IPC分类号： C08F36/04 ,  C08F4/54

    CPC分类号： C08F36/04 ,  C08F4/545

    摘要： The instant invention provides a process for substantially reducing the polymer cement viscosity or reducing the molecular weight distribution of the a conjugated diene polymer synthesized by using a charge of catalytically effective amounts of a rare earth catalyst and an organo magnesium component by adding an organo zinc component to the charge in an amount and under conditions sufficient to reduce the polymer cement viscosity. The invention also contemplates a catalyst compostion for substantially reducing the polymer cement viscosity of a polymer product as well the resultant polymer product.

    摘要翻译： 在本发明和对有机基镁组分加入到有机锌组分提供了用于显着地降低聚合物胶浆粘度或降低通过使用电荷的稀土催化剂的催化有效量的合成的共轭用作聚合物的分子量分布 到在量和足以降低聚合物水泥粘度的条件下的电荷。 因此，本发明设想了一种催化剂compostion用于基本上减少的聚合物产物的聚合物胶浆粘度以及所得到的聚合物产物。

    Rubber composition for tires
    10.
    发明公开
    Rubber composition for tires 失效
    KautschukmischungfürReifen

    公开(公告)号：EP0747428A1

    公开(公告)日：1996-12-11

    申请号：EP96108913.3

    申请日：1996-06-04

    申请人： BRIDGESTONE CORPORATION

    发明人： Kang, Jung W. ,  Lynch, Thomas J. ,  Poulton, Jason T.

    IPC分类号： C08L9/00

    CPC分类号： C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  C08L2205/02 ,  Y10T152/10 ,  C08L2666/08

    摘要： Diene polymers having a high content of trans-1,4 addition and two distinct melting points in the ranges of 30°C to 60°C and 70°C to 130°C are useful as additives to tire rubbers to improve processability by reducing compound Mooney viscosity and reducing the shrinkage of various compound stocks.

    摘要翻译： 在30℃至60℃和70℃至130℃范围内具有高反式-1,4-加成量和两个不同熔点的二烯聚合物可用作轮胎橡胶的添加剂，以通过还原化合物改善加工性能 门尼粘度降低各种复合料的收缩。