发明授权
US3625864A Polymerization catalyst system additives 失效
聚合催化剂体系添加剂

Polymerization catalyst system additives
摘要:
A method of preparing a polymerization catalyst which involves impregnating a catalyst support with chromium oxide and a titanium complex formed by reacting a titanium alkoxide a compound selected from the group consisting of R''xSn(OH)m and R''''pB(OH)q in which R'' and R'''' are selected from the group consisting of alkyl, aryl, and cycloalkyl radicals and combinations thereof.
信息查询
0/0