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. 22, 2015
Filed:
Apr. 24, 2014
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Cctec/cornell University, Ithaca, NY (US);
Hisashi Ohtaki, Kanagawa, JP;
Fumihiko Shimizu, Kanagawa, JP;
Geoffrey W. Coates, Lansing, NY (US);
Glenn H. Fredrickson, Santa Barbara, CA (US);
MITSUBISHI CHEMICAL CORPORATION, Chiyoda-ku, JP;
CORNELL UNIVERSITY, Ithaca, NY (US);
Abstract
The present invention relates to a thermoplastic elastomer composition which comprises a branched olefin copolymer comprising: a main chain of an ethylene/α-olefin copolymer; and a side chain derived from a crystalline propylene polymer containing a vinyl group at one end, wherein the content of α-olefin in the main chain is 70 mol % or less, the composition has an elongation at break of 500% or higher, and has an elastic recovery rate of 70% or more when recovering from an extension to 300% elongation, and a process for manufacturing the same.