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:
Oct. 31, 1995
Filed:
Jan. 21, 1993
Akira Sano, Kawasaki, JP;
Takeichi Shiraishi, Kawasaki, JP;
Kunihiro Suzuki, Yokohama, JP;
Mitsuo Okamoto, Yokohama, JP;
Katumi Usui, Yokohama, JP;
Hiroyuki Shimizu, Tokyo, JP;
Kazuo Matsuura, Tokyo, JP;
Nippon Oil Company, Limited, Tokyo, JP;
Abstract
Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being prepared by the reaction of the following components [I] and [II]: [I] a reaction product obtained by reacting the following components (1), (2) and (3) with one another in the presence of a compound represented by the general formula ROH wherein R is a hydrocarbon radical having 1 to 20 carbon atoms or an organic residue containing such an element as oxygen, nitrogen, sulfur, or chlorine: