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    • 66. 发明公开
    • 고분지형 중합체의 제조 방법
    • 生产超支化聚合物的方法
    • KR1020010022585A
    • 2001-03-26
    • KR1020007001176
    • 1998-08-04
    • 존슨 폴리머, 엘엘씨
    • 캠벨,제이.,데이빗테이무어,포우어드
    • C08F212/04
    • C08F212/04B01J19/2465B01J2219/0006B01J2219/00094B01J2219/00164C08F2/02
    • A method is provided for producing hyperbranched polymers comprising heating a polymerizable reaction charge comprising (a) a monomer mixture comprising 50-99.1 % by weight of at least one monoethylenically unsaturated monomer and 0.1-50 % by weight of one or more multiethylenically unsaturated monomers and (b) if at least one ethylenically unsaturated monomer of the monomer mixture is not a thermally initiating monomer, a free radical polymerization initiator, to a temperature in the range from about 250 °C to about 400 °C in a continuous reactor which allows mixing of the reactor contents for a residence time of from about 2 minutes to about 60 minutes, provided that if the total amount of multiethylenically unsaturated monomer is less than 3 % by weight of the monomer mixture than at least one of said one or more multiethylenically unsaturated monomers must be tri- or greater ethylenically unsaturated. The hyperbranched polymers prepared by this process are also described.
    • 提供了一种用于生产超支化聚合物的方法,其包括加热可聚合反应进料,其包含(a)包含50-99.1重量%的至少一种单烯属不饱和单体和0.1-50重量%的一种或多种多烯属不饱和单体的单体混合物,和 (b)如果单体混合物的至少一种烯属不饱和单体不是热引发单体自由基聚合引发剂,在连续反应器中的温度范围为约250℃至约400℃,这允许混合 反应器内容物的停留时间为约2分钟至约60分钟,条件是如果多烯键式不饱和单体的总量小于单体混合物的重量比所述一种或多种多烯属不饱和单体中的至少一种 单体必须是三或更多的烯键式不饱和。 还描述了通过该方法制备的超支化聚合物。