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:
Aug. 10, 2010
Filed:
Mar. 22, 2005
Applicant:
Shizuo Kitahara, Tokyo, JP;
Inventor:
Shizuo Kitahara, Tokyo, JP;
Assignee:
Zeon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 8/48 (2006.01); C08F 293/00 (2006.01); C08F 297/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a novel block copolymer which can significantly improve the adhesion between a molded product composed of a nonpolar polymer such as polypropylene or polyethylene and a coating material or a molded product composed of a polar polymer, as well as a method for producing the same. Disclosed is a block copolymer comprising at least one poly (aromatic vinyl) block having a weight-average molecular weight of 1,000 to 500,000 and at least one cyclized poly (conjugated diene) block, as well as an oxygen scavenger and a modifier for polymer molding material, which comprise the block copolymer as an active ingredient.