Catalyst component for producing crystalline polymers and a process for producing the catalyst.

摘要

A catalyst component for producing crystalline olefin polymers comprises a linear olefin/non-olefin block copolmer having at least one linear olefin block copolymer and at least one non-linear olefin polymer block and (a) a titanium trichloride composition or (b) titanium, magnesium, a halogen and an electron donor as components for a carrier; the content of the linear olefin polymer block being from 0.1 to 49.5 by weight, the content of the non-linear olefin polymer block being from 0.01 to 49.5% by weight, the ratio by weight of the linear olefin polymer block to the non-linear olefin polymer block being 2/98 to 98/2 and in the case of (a), the content of the titanium trichloride composition being 99.89 to 1.0% by weight.