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:
Sep. 13, 1994
Filed:
Jan. 23, 1992
Applicant:
Inventors:
Assignee:
Total Ruffinage Distribution S.A., Levallois Perret, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428331 ; 428328 ; 428329 ; 428330 ; 428332 ; 428334 ; 428447 ; 428451 ; 428516 ; 428517 ; 428519 ;
Abstract
A composite material comprising at least two elastomer layers, the first layer having a first composition comprising from 40 to 80 percent by weight of silicone rubber, the second layer having a second composition comprising from 50 to 100 percent by weight of rubber of the ethylene-propylene copolymer and/or terpolymer type, wherein the first composition further contains from 20 to 60 percent by weight of rubber of the ethylene-propylene copolymer and/or terpolymer type, and each of the two compositions contains more than 5 percent, and preferably from 5 to 60 percent, by weight of silica.