Finnegan, Henderson, Farabow, Garrett & Dunner LLP
Methods for preparation of propylene polymers
Disclosed herein is a polymerization method of propylene, which can prepare a propylene homopolymer with both high fluidity and high rigidity as well as a propylene/α-define copolymer having both high fluidity and a good rigidity-toughness balance by, for example, control of polymerization steps and elevation of polymerization temperature, while the catalyst still maintains a relatively high polymerization activity.
China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
C C
C08F C08F
inventional inventional
Qinyu Luqiang Jiangbo Yang Yafeng Kang Jianxin Zengyue Lusheng Zhong Jie Zhichao
Tong Yu Chen Liu Du Sun Zhang Dai Wang Tan Zou Yang