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    • 1. 发明公开
    • Gas phase anionic polymerization of diene elastomers
    • 阴离子气相聚合
    • EP0942005A2
    • 1999-09-15
    • EP99103964.5
    • 1999-03-09
    • Bridgestone Corporation
    • Cole, William M.Hergenrother, William L.Knutson, Theodore J.Böhm; Georg G.A.
    • C08F4/02C08F2/34C08F36/04C08L21/00B60C1/00
    • C08F36/04B60C1/00Y10S152/905C08F4/02C08F2/34C08F4/027
    • 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, T g 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.
    • 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如苯乙烯丁二烯橡胶,聚丁二烯橡胶,聚异戊二烯橡胶等。 催化剂包括可与金属化的颗粒,例如结合的橡胶,热塑性聚合物或固化的弹性体,其与IA族碱金属原子多金属化。 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耐硫化弹性体化合物和诸如轮胎的制品,其具有优异的耐磨损性和显示出降低的滞后性能。
    • 5. 发明公开
    • Anionic polymerization initiators for preparing branched diene rubbers
    • 阴离子聚合反应
    • EP0942004A3
    • 2001-11-07
    • EP99103963.7
    • 1999-03-09
    • Bridgestone Corporation
    • Hergenrother, William L.Cole, William M.Knutson, Theodore J.Böhm, George G. A.
    • C08F4/02C08F36/04C08L21/00B60C1/00
    • C08F36/04B60C1/00C08F4/027C08F4/46Y10T152/10
    • 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, T g 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.
    • 提供了与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,并用于制备极高分子量的支链二烯聚合物。 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分支的,在几乎每个金属化位点处共价连接到颗粒上的聚合物链。 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抗磨损性和可显示降低的滞后性能的可硫化弹性体化合物和制品。