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:
Apr. 27, 2010
Filed:
May. 17, 2005
Applicants:
Motoki Hosaka, Chigasaki, JP;
Takefumi Yano, Chigasaki, JP;
Hiroyuki Kono, Chigasaki, JP;
Inventors:
Assignee:
Toho Titanium Co., Ltd., Chigasaki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/64 (2006.01); C08F 4/642 (2006.01); C08F 4/647 (2006.01); C08F 4/649 (2006.01); B01J 31/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A catalyst for olefin polymerization comprising (A) a solid catalyst component prepared by causing (a) a magnesium compound, (b) a tetravalent titanium halide compound, and (c) an electron donor compound to come in contact with each other, (B) an organoaluminum compound of the general formula RAlQ, and (C) an oligomer of an organosilicon compound of the following chemical formula; R—(RRSiO)—Rcan produce olefin polymers having higher stereoregularity and a broader molecular weight distribution in a higher yield than conventional catalysts.