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:
Oct. 12, 1993
Filed:
Nov. 30, 1992
Applicant:
Inventors:
Assignee:
Tonen Sekiyukagaku Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
428220 ; 428286 ; 428248 ; 428247 ; 428255 ; 428264 ; 428910 ; 428265 ; 525211 ; 525222 ;
Abstract
An elastomer film of a thermoplastic elastomer composition comprising 30-70 weight % of an ethylene-propylene-diene copolymer and 70-30 weight % of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 5-30 weight % and a melt index of 0.2-25 g/10 minutes, the elastomer film having a thickness of 10-60 .mu.m, and a draw ratio expressed by a heat shrinkage ratio at 50.degree. C. which is 5-35% in an MD direction and 5-25% in a TD direction, the ratio of the draw ratio in an MD direction to the draw ratio in a TD direction being 3 or less, is produced by an air-cooled inflation method.