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. 09, 1979
Filed:
Oct. 18, 1976
Applicant:
Inventors:
Masayasu Tomoda, Takatsuki, JP;
Yutaka Ueta, Ibaraki, JP;
Assignee:
Kaikin Kogyo Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428215 ; 428220 ; 428281 ; 428290 ; 428291 ; 428261 ; 428262 ; 428289 ; 428305 ; 428315 ; 428331 ; 428421 ; 428422 ; 428446 ; 428538 ; 428492 ; 428519 ; 428520 ; 162172 ; 1621 / ; 526255 ; 156242 ; 291566 ;
Abstract
A composite material including a rubber elastomer substrate and a polytetrafluoroethylene resin film or sheet having a porosity of 20 to 95% by volume and being laminated on at least one portion of the rubber elastomer substrate. In one preferred embodiment, a process for the production of the composite material includes the step of laminating a vulcanizable rubber elastomer with a porous film or sheet of polytetrafluoroethyle resin at a temperature and pressure sufficient to effect vulcanization of the rubber elastomer.