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    • 2. 发明申请
    • IMPROVED TERMINATION AND REDUCED GEL IN HIGH CIS POLYBUTADIENE
    • 改善高纯度聚丁二烯中的终止和降低凝胶
    • WO2004072132A1
    • 2004-08-26
    • PCT/US2003/039825
    • 2003-12-12
    • FIRESTONE POLYMERS, LLC
    • DEDECKER, MarkWRIGHT, HarryPYLE, Jason
    • C08F36/04
    • C08F36/04C08F2/42C08F4/7098
    • The present invention is directed to a process for forming a high-cis polydiene. The process includes catalyzing a diene polymerization, and terminating the polymerization with a termination mixture comprising an inorganic base and at least one of an amine and a carboxylic acid. The catalyst system is a mixture of (a) organoaluminum compounds; (b) organonickel compounds; and (c) fluorine-containing compounds. The use of an inorganic base reduces the amount of more expensive amine necessary to effectively terminate the polymerization as well as reducing the corrosion in the reaction container. The use of an inorganic base with a carboxylic acid results in a very low gel content as well as reducing the corrosion in the process systems.
    • 本发明涉及形成高顺式聚二烯的方法。 该方法包括催化二烯聚合,并用包含无机碱和胺和羧酸中的至少一种的终止混合物终止聚合。 催化剂体系是(a)有机铝化合物的混合物; (b)有机锡化合物; 和(c)含氟化合物。 无机碱的使用减少了有效终止聚合所需的更昂贵的胺的量以及减少反应容器中的腐蚀。 使用无机碱与羧酸导致非常低的凝胶含量以及减少过程系统中的腐蚀。