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. 13, 2004
Filed:
Nov. 14, 2001
Applicant:
Inventors:
Yuichi Itoh, Chiba, JP;
Akira Uchiyama, Chiba, JP;
Assignee:
Mitsui Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 2/304 ; C08L 2/312 ; C08K 5/138 ;
U.S. Cl.
CPC ...
C08L 2/304 ; C08L 2/312 ; C08K 5/138 ;
Abstract
This invention relates to a thermoplastic elastomer composition which includes and comprises 10 to 60 parts by weight of a polyolefin (A), 30 to 87 parts by weight of a crosslinked rubber (B), 3 to 50 parts by weight of a softening agent (C) [the total amount of (A), (B) and (C) being 100 parts by weight] and 0.02 to 0.3 part by weight of a phenolic heat stabilizer (D) and which retains an elongation value at break by 80% or more, after aging for 500 hours in an air oven of 130° C., of the value before the aging; and relates to a manufacturing method thereof.