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    • 66. 发明申请
    • METHOD FOR PRODUCING MODIFIED PROPYLENE POLYMER
    • 生产改性丙烯聚合物的方法
    • US20120245296A1
    • 2012-09-27
    • US13425595
    • 2012-03-21
    • Hiroyoshi NAKAJIMAMitsuyoshi SHIMANO
    • Hiroyoshi NAKAJIMAMitsuyoshi SHIMANO
    • C08F8/00
    • C08F255/02
    • Disclosed is a method for producing a modified propylene polymer that exhibits low flowability and also exhibits little fluctuation in melt flow rate compared with the melt flow rate of the propylene polymer before modification, the method involving a heat treatment step of subjecting a mixture comprising 100 parts by weight of a propylene polymer (A), from 0.1 to 50 parts by weight of an ethylenically unsaturated bond-containing compound (B), and from 0.01 to 20 parts by weight of an organic peroxide (C) whose decomposition temperature at which the half-life thereof becomes 1 minute is lower than 120° C. to heat treatment by using an extruder at a temperature lower than the decomposition temperature of the organic peroxide (C) at which the half-life thereof becomes 1 minute.
    • 本发明公开了一种改性丙烯聚合物的制造方法,其特征在于,与改性前的丙烯类聚合物的熔体流动速率相比,流动性低,熔体流动速率变动不大,涉及热处理工序的方法, 的丙烯聚合物(A),0.1〜50重量份的含烯属不饱和键的化合物(B)和0.01〜20重量份的有机过氧化物(C),其分解温度为 其半衰期为1分钟低于120℃,通过使用挤出机在低于半衰期为1分钟的有机过氧化物(C)的分解温度的温度下进行热处理。