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:
Jan. 10, 2006
Filed:
Jul. 21, 2004
Satoru Chosa, Chigasaki, JP;
Kunihiko Tashino, Chigasaki, JP;
Motozo Yoshikiyo, Ichihara, JP;
Hiroshi Sato, Ichihara, JP;
Satoru Chosa, Chigasaki, JP;
Kunihiko Tashino, Chigasaki, JP;
Motozo Yoshikiyo, Ichihara, JP;
Hiroshi Sato, Ichihara, JP;
Toho Catalyst Co., LTD, Kurobe, JP;
Ube Industries, LTD, Ube, JP;
Abstract
An olefin polymerization catalyst comprising: (A1) a solid catalyst component prepared by contacting (a1) a dialkoxymagnesium, (b1) a tetravalent titanium halide, (c1) an electron compound, and (d1) a polysiloxane, (B) an organoaluminum compound of the formula RAlQ, and (C) an aminosilane compound of the formula (RRN)Si(OR)has a high activity to hydrogen as compared with conventional catalysts and maintains the capability of producing polymers with a high stereoregularity at a high yield.