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:
Jul. 06, 2004
Filed:
Dec. 28, 2001
Applicant:
Inventors:
Assignee:
NOK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ; C08K 3/04 ; C08L 5/702 ;
U.S. Cl.
CPC ...
C08J 3/00 ; C08K 3/04 ; C08L 5/702 ;
Abstract
A butyl rubber composition, which comprises 100 parts by weight of butyl rubber and 30 to 150 parts be weight of carbon black having a CTAB specific surface area of 30 to 100 m /g and preferably further contains 10 to 100 parts by weight of a flat filler having an average particle size of 1 to 40 &mgr;m and an aspect ratio of 5 or more and 0.05 to 5 parts by weight of a coupling agent of organometallic compound is provided. The butyl rubber composition can give vulcanization molded products capable of effectively sealing a carbon dioxide refrigerant without generation of blisters, etc. therein.