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. 26, 1985
Filed:
May. 04, 1982
Nobuyuki Kuroda, Yokohama, JP;
Toru Nakamura, Kawasaki, JP;
Yutaka Shikatani, Yokohama, JP;
Kazuo Matsuura, Tokyo, JP;
Mitsuji Miyoshi, Fujisawa, JP;
Nippon Oil Co., Ltd., Tokyo, JP;
Abstract
A process for the homopolymerization or copolymerization of olefins is disclosed, which is carried out in the presence of a catalyst system comprising the combination of at least one organometallic compound with a component resulting from the reaction of (a) a magnesium halide, (b) a compound represented by the formula, Al(OR).sub.n X.sub.3-n, where R is a hydrocarbon residual group having 1 to 20 carbon atoms, X is a hydrogen atom, and n is 0.ltoreq.n.ltoreq.3, (c) a compound represented by the formula, Si(OR').sub.m X.sub.4-m, where R' is a hydrocarbon residual group having 1 to 20 carbon atoms, X is a halogen atom, and m is 0.ltoreq.m.ltoreq.4, and (d) a titanium compound and/or a vanadium compound. The resulting polymers have a large bulk density and a narrow range of molecular weight distribution.