The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2000
Filed:
Apr. 30, 1996
Tetsunori Shinozaki, Yamaguchi, JP;
Yasushi Nakayama, Yamaguchi, JP;
Junji Saito, Yamaguchi, JP;
Kenji Sugimura, Yamaguchi, JP;
Mamoru Kioka, Yamaguchi, JP;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Abstract
Disclosed is a solid titanium catalyst component for olefin polymerization comprising magnesium, titanium, halogen, and (C) a phthalic diester represented by the following structural formula (i): ##STR1## wherein R is a branched hydrocarbon group of 7 carbon atoms, and two or R may be the same as or different from each other. Also disclosed are a process for preparing the solid titanium catalyst component, an olefin polymerization catalyst containing said solid titanium catalyst component and a process for olefin polymerization using the olefin polymerization catalyst. According to the present invention, the olefin polymer having high stereoregularity can be produced in a prominently high yield per catalyst unit.