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:
Nov. 28, 2006
Filed:
May. 04, 2005
Applicants:
Motoki Hosaka, Chigasaki, JP;
Hiroyuki Kono, Chigasaki, JP;
Hayashi Ogawa, Chigasaki, JP;
Inventors:
Assignee:
Toho Catalyst Co., Ltd., Kurobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A catalyst for olefin polymerization comprising (A) a solid catalyst component which is 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 formula RAlQ, and (C) an organosilicon compound of the formula SiRR(OR)(OR), and (D) an organosilicon compound of the formula RSi(OR)exhibits a higher hydrogen activity than conventional catalysts.