An ethylene oligomerization catalyst that oligmerizes ethylene to a series of α-olefins and that has a Schulz-Flory constant of about 0.75 to 0.995 produces a stream of α-olefins. This stream is then added to a vessel containing ethylene and a copolymerization catalyst that copolymerizes ethylene and α-olefins. The resulting branched polyethylene often has good processing properties. The good processing is presumably due to the presence of “long chain branching”. Such polymers are useful for films and other packaging materials, and for molding resins for molding parts such as industrial, automotive or electrical parts.
一种
乙烯寡聚催化剂,能将
乙烯寡聚合成一系列α-烯烃,并具有约0.75至0.995的Schulz-Flory常数,产生α-烯烃流。然后将该流加入到一个容器中,其中含有
乙烯和共聚催化剂,该共聚催化剂能使
乙烯和α-烯烃共聚合。得到的支化聚
乙烯通常具有良好的加工性能。良好的加工性能可能是由于存在“长链支化”。这种聚合物可用于薄膜和其他包装材料,以及用于制造工业、汽车或电气零件等成型
树脂。