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. 11, 1983
Filed:
Nov. 30, 1981
Applicant:
Inventors:
Hideo Takamatsu, Ibaragi, JP;
Shobu Minatono, Ibaragi, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09J / ;
U.S. Cl.
CPC ...
156334 ; 4273722 ; 4273935 ; 4273882 ; 264236 ; 264242 ; 264261 ;
Abstract
There is provided a curable sealing composition comprising a low molecular weight rubber, a curing agent and other additives as required and being characterized in that a block copolymer of isoprene and butadiene with a viscosity average molecular weight of 7,000-150,000 is used as the low molecular weight rubber. The composition has a good workability, and when cured, produces seals having excellent thermal stability, elasticity and sealing effect.