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. 24, 2007
Filed:
Aug. 26, 2003
Applicants:
Motoki Hosaka, Kanagawa, JP;
Maki Sato, Kanagawa, JP;
Inventors:
Motoki Hosaka, Kanagawa, JP;
Maki Sato, Kanagawa, JP;
Assignee:
Toho Catalyst Co., Ltd., Kurobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A solid catalyst component for polymerization of olefins prepared by contacting (a) a dialkoxy magnesium compound, (b) a tetra-valent titanium halide, and (c) an electron donor compound of the formula RRC(COOR)suspended in (d) an aromatic hydrocarbon having a boiling point in the range of 50–150° C. The catalyst containing the catalyst component is excellent in the olefin polymerization catalyst activity to hydrogen and can produce a polymer with a high stereoregularity in a high yield.