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:
Jan. 22, 1991
Filed:
Feb. 28, 1990
Applicant:
Inventors:
Hozumi Sato, Tokyo, JP;
Humito Shimada, Tokyo, JP;
Akio Sakaguchi, Tokyo, JP;
Yasuhiko Takemura, Tokyo, JP;
Tadaaki Nishi, Tokyo, JP;
Hisao Ono, Tokyo, JP;
Masanobu Nagano, Tokyo, JP;
Takumi Miyachi, Tokyo, JP;
Assignee:
Japan Synthetic Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; F16L / ; F16L / ;
U.S. Cl.
CPC ...
428 368 ; 428 347 ; 428 357 ; 525178 ; 525179 ; 525184 ;
Abstract
A thermoplastic elastomer composition which comprises 25-95% by weight of a polyamide and 75-5% by weight of a halogenated butyl rubber, a chlorosulfonated polyethylene or both thereof. Said composition is excellent in resistance to Freon gas permeation and has good oil resistance and low-temperature resistance. A hose wherein the layer to be contacted with a gas is made of the above thermoplastic elastomer composition is suitable as a Freon gas R-22 hose.