Solid catalyst component for olefin polymerization and catalyst

Details Solid catalyst component for olefin polymerization and catalyst Solid catalyst component for olefin polymerization and catalyst

2005-04-12

2005-04-12

Bell, Mark L. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C502S115000, C502S116000, C502S122000, C502S125000, C502S127000, C502S132000, C502S134000

Reexamination Certificate

active

06878659

ABSTRACT:
A solid catalyst component for olefin polymerization characterized by being formed from (a) a magnesium compound, (b) titanium tetrachloride, (c) a phthalic diester and a derivative thereof, and either (d1) a hydroxylated hydrocarbon compound (phenol, etc.) represented by a specific formula or (d2) a mercapto-containing hydrocarbon compound (thiophenol, etc.) represented by a specific formula. With a catalyst obtained from this solid catalyst component, an olefin polymer can be obtained in extremely high yield. In particular, a propylene polymer which retains high stereoregularity can be obtained in extremely high yield.

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