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    • 9. 发明专利
    • Iron-based catalyst composition and process for producing syndiotactic 1,2-polybutadiene
    • 基于铁的催化剂组合物和生产合成1,2-聚丁二烯的方法
    • JP2009120852A
    • 2009-06-04
    • JP2009055233
    • 2009-03-09
    • Bridgestone Corp株式会社ブリヂストン
    • LUO STEVEN
    • C08F4/80C08F4/44C08F4/50C08F4/606C08F4/70C08F36/06C08F136/06
    • C08F136/06C08F4/70
    • PROBLEM TO BE SOLVED: To provide an iron-based catalyst composition and a process for producing a syndiotactic 1,2-polybutadiene. SOLUTION: The catalyst composition comprising (a) an iron-containing compound, (b) an organomagnesium compound and (c) a dihydrocarbyl hydrogen phosphite is disclosed for polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene. The use of the catalyst composition of this disclosure avoids the use of environmentally detrimental components such as carbon disulfide and halogenated hydrocarbons. The melting temperature of the syndiotactic 1,2-polybutadiene can be varied from about 100 to about 190°C by changing the catalyst components and the component ratios. The ability to vary the melting temperature with a single catalyst composition is very desirable. The syndiotactic 1,2-polybutadiene can be used as a plastic or as an additive for rubber compositions wherein it can crosslink with conventional rubbers using conventional crosslinking agents. COPYRIGHT: (C)2009,JPO&INPIT
    • 待解决的问题:提供铁基催化剂组合物和间同立构1,2-聚丁二烯的制备方法。 公开了包含(a)含铁化合物,(b)有机镁化合物和(c)二烃基亚磷酸氢盐的催化剂组合物,用于将1,3-丁二烯聚合成间规1,2-聚丁二烯。 使用本公开的催化剂组合物避免使用环境有害组分如二硫化碳和卤代烃。 通过改变催化剂组分和组分比例,间同立构1,2-聚丁二烯的熔融温度可以从约100至约190℃变化。 用单一催化剂组合物改变熔融温度的能力是非常理想的。 间规1,2-聚丁二烯可以用作塑料或作为橡胶组合物的添加剂,其中它可以使用常规的交联剂与常规橡胶交联。 版权所有(C)2009,JPO&INPIT