摘要:
A process for preparing an ultra-high molecular weight polyethylene by the polymerization of ethylene using a catalyst comprising a solid catalyst component and an organometallic compound, characterized in that said solid catalyst component is a product obtained by contacting the following [A] and [B] together:
[A] the reaction product of a magnesium dihalide and a titanium compound represented by the general formula Ti(OR)₄ wherein R is a hydrocarbon group having 1 to 20 carbon atoms; [B] the reaction product of an aluminum trihalide and a silicon compound represented by the general formula Si(OR′)₄ wherein R′ is a hydrocarbon group having 1 to 20 carbon atoms.
摘要翻译:一种通过使用包含固体催化剂组分和有机金属化合物的催化剂通过乙烯聚合制备超高分子量聚乙烯的方法,其特征在于所述固体催化剂组分是通过使以下[A]和[B ] [A]二卤化镁与由通式Ti(OR)4表示的钛化合物的反应产物,其中R是具有1至20个碳原子的烃基; [B]三卤化铝与由通式Si(OR min)4表示的硅化合物的反应产物,其中R min是具有1至20个碳原子的烃基。 p