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:
Sep. 09, 2008
Filed:
Jan. 06, 2005
Sang Bae Kim, Yeosu, KR;
Gyu Yeop Lee, Yeosu, KR;
Sang Bae Kim, Yeosu, KR;
Gyu Yeop Lee, Yeosu, KR;
Kumho Polychem Co., Ltd., Jongro-Gu, Seoul, unknown;
Abstract
Disclosed herein is an ethylene-propylene-diene EPDM rubber composition with improved adhesion properties. The ethylene-propylene-diene rubber composition comprises an EPDM rubber, a crystalline polyolefin, and a polyolefin containing at least one carbonyl group (—C═O) within the structure as an adhesion improver. The ethylene-propylene-diene rubber composition improves adhesion to a polar polymeric material. Specifically, the EPDM rubber composition comprises 100 phr of an EPDM rubber, 5˜40 phr of a polyolefin containing at least one carbonyl group and 10˜30 phr of a crystalline polyolefin resin.