Gas phase anionic polymerization of diene elastomers
    1.
    发明授权
    Gas phase anionic polymerization of diene elastomers 有权
    二烯弹性体的气相阴离子聚合

    公开(公告)号:US06258886B1

    公开(公告)日:2001-07-10

    申请号:US09448528

    申请日:1999-11-23

    IPC分类号: C08K304

    摘要: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.

    摘要翻译: 本发明提供了适用于共轭二烯单体的气相阴离子聚合的固体负载阴离子催化剂,其可用于阴离子生产非常高分子量的支化二烯聚合物,例如苯乙烯丁二烯橡胶,聚丁二烯橡胶,聚异戊二烯橡胶等。 该催化剂包括可金属化的颗粒,例如与IA族碱金属原子多金属化的结合橡胶,热塑性聚合物或固化的弹性体。 通过使用催化剂的气相阴离子聚合获得的多支链二烯聚合物显示出所需的性能,例如极高的分子量,受控的分子量分布,Tg和乙烯基含量,以及容易吸收烃溶剂和油的能力。 聚合物易于复合以形成可耐化的弹性体化合物和诸如轮胎的制品,其具有优异的耐磨性和耐撕裂性并且具有降低的滞后性能。

    Anionic polymerization initiators for preparing macro-branched diene rubbers
    2.
    发明授权
    Anionic polymerization initiators for preparing macro-branched diene rubbers 有权
    用于制备大分子量二烯橡胶的阴离子聚合引发剂

    公开(公告)号:US06271314B1

    公开(公告)日:2001-08-07

    申请号:US09569253

    申请日:2000-05-11

    IPC分类号: C08F29702

    摘要: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.

    摘要翻译: 提供和使用与IA族碱金属原子多金属化的新型固体负载型阴离子聚合引发剂,用于生产极高分子量支链二烯聚合物。 引发剂通过在极性配位体的存在下金属化包含热塑性聚合物或固化的弹性体的颗粒来制备。 通过使用引发剂的阴离子聚合获得的聚合物是多支化的,聚合物链几乎在每个金属化位点共价连接到颗粒上。 大分支聚合物显示出所需的性能,例如极高的分子量,受控的分子量分布,Tg和乙烯基含量,以及容易吸收烃溶剂和油的能力。 聚合物易于复合以形成具有优异的耐磨性和耐撕裂性并且具有降低的滞后性能的可硫化弹性体化合物和制品。

    Anionic polymerization initiators for preparing macro-branched diene rubbers
    3.
    发明授权
    Anionic polymerization initiators for preparing macro-branched diene rubbers 有权
    用于制备大分子量二烯橡胶的阴离子聚合引发剂

    公开(公告)号:US06384150B2

    公开(公告)日:2002-05-07

    申请号:US09852507

    申请日:2001-05-10

    IPC分类号: C08C1926

    摘要: Novel solid supported anionic polymerization initiators that are multiply metalated with Group IA alkali metal atoms are provided and employed to produce extremely high molecular weight branched diene polymers. The initiators are prepared by metalating a particle comprising a thermoplastic polymer or a cured elastomer in the presence of a polar coordinator. The polymers obtained by anionic polymerization employing the initiators are multiply branched, with a polymer chain covalently attached to the particle at virtually every metalation site. The macro-branched polymers exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.

    摘要翻译: 提供和使用与IA族碱金属原子多金属化的新型固体负载型阴离子聚合引发剂,用于生产极高分子量支链二烯聚合物。 引发剂通过在极性配位体的存在下金属化包含热塑性聚合物或固化的弹性体的颗粒来制备。 通过使用引发剂的阴离子聚合获得的聚合物是多支化的,聚合物链几乎在每个金属化位点共价连接到颗粒上。 大分支聚合物显示出所需的性能,例如极高的分子量,受控的分子量分布,Tg和乙烯基含量,以及容易吸收烃溶剂和油的能力。 聚合物易于复合以形成具有优异的耐磨性和耐撕裂性并且具有降低的滞后性能的可硫化弹性体化合物和制品。

    Gas phase anionic polymerization of diene elastomers
    4.
    发明授权
    Gas phase anionic polymerization of diene elastomers 有权
    二烯弹性体的气相阴离子聚合

    公开(公告)号:US06359087B1

    公开(公告)日:2002-03-19

    申请号:US09448841

    申请日:1999-11-23

    IPC分类号: C08F446

    摘要: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.

    摘要翻译: 本发明提供了适用于共轭二烯单体的气相阴离子聚合的固体负载阴离子催化剂,其可用于阴离子生产非常高分子量的支化二烯聚合物,例如苯乙烯丁二烯橡胶,聚丁二烯橡胶,聚异戊二烯橡胶等。 该催化剂包括可金属化的颗粒,例如与IA族碱金属原子多金属化的结合橡胶,热塑性聚合物或固化的弹性体。 通过使用催化剂的气相阴离子聚合获得的多支链二烯聚合物显示出所需的性能,例如极高的分子量,受控的分子量分布,Tg和乙烯基含量,以及容易吸收烃溶剂和油的能力。 聚合物易于复合以形成可耐化的弹性体化合物和诸如轮胎的制品,其具有优异的耐磨性和耐撕裂性并且具有降低的滞后性能。

    Gas phase anionic polymerization of diene elastomers

    公开(公告)号:US06255406B1

    公开(公告)日:2001-07-03

    申请号:US09448842

    申请日:1999-11-23

    IPC分类号: C08F3606

    摘要: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.

    Solution masterbatch process using finely ground fillers for low hysteresis rubber
    9.
    发明授权
    Solution masterbatch process using finely ground fillers for low hysteresis rubber 有权
    使用精细研磨填料的低磁滞橡胶的溶液母料处理

    公开(公告)号:US07790798B2

    公开(公告)日:2010-09-07

    申请号:US11321496

    申请日:2005-12-29

    IPC分类号: C08K3/34

    摘要: Methods are provided for making solution masterbatches containing a diene elastomer in an organic solvent and a silica filler, having a first average particle size, that is ground in an organic solvent to form a silica having a reduced second average particle size. Grinding of the silica in the organic solvent, with or without other ingredients including the elastomer, produces a solution masterbatch in which the silica is mixed with and well dispersed in the elastomer. The use of such desolventized solution masterbatches in vulcanizable rubber compounds results in excellent processing characteristics allowing for the reduced use of processing aids such as oil. The compound also demonstrates improved properties, including reduced hysteresis.

    摘要翻译: 提供了用于在有机溶剂中制备含有二烯弹性体的溶液母料和具有第一平均粒径的二氧化硅填料的方法,其在有机溶剂中研磨以形成具有降低的第二平均粒径的二氧化硅。 在有机溶剂中研磨二氧化硅,包括或不含弹性体的其它成分,产生溶液母料,其中二氧化硅与弹性体混合并充分分散在其中。 在可硫化橡胶化合物中使用这种脱溶剂溶液母料导致优异的加工特性,可以减少使用加工助剂如油。 该化合物还表现出改进的性能,包括减少滞后。

    Rubber composition containing functionalized polymer nanoparticles
    10.
    发明授权
    Rubber composition containing functionalized polymer nanoparticles 有权
    含有官能化聚合物纳米粒子的橡胶组合物

    公开(公告)号:US07897690B2

    公开(公告)日:2011-03-01

    申请号:US12504255

    申请日:2009-07-16

    IPC分类号: C08F279/00

    摘要: A polymer nanoparticle is provided. The nanoparticle includes an inner layer having alkenylbenzene monomer units. The nanoparticle further includes an outer layer having monomer units selected from conjugated dienes, alkylenes, alkenylbenzenes, and mixtures thereof. The nanoparticle has at least one functional group associated with the outer layer. Applications of use as additives for rubber, including the rubber compositions, are also provided.

    摘要翻译: 提供聚合物纳米颗粒。 纳米颗粒包括具有烯基苯单体单元的内层。 纳米颗粒还包括具有选自共轭二烯,亚烷基,链烯基苯及其混合物的单体单元的外层。 纳米颗粒具有与外层相关联的至少一个官能团。 还提供了用作橡胶添加剂的应用,包括橡胶组合物。