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:
Nov. 30, 1976
Filed:
Oct. 21, 1974
Applicant:
Inventors:
Bernard Wasserman, China Lake, CA (US);
Frederick A Emerson, Jr, China Lake, CA (US);
William H Thielbahr, Ridgecrest, CA (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 28 ; 60232 ; 260 / ; 260 4227 ;
Abstract
Compositions consisting essentially of about 1 weight percent carbon black, rom about 20 to about 35 weight percent polytetrafluoroethylene and from about 79 to about 64 weight percent of a material selected from the group consisting of isobutylene-isoprene copolymer and ethylene-propylene rubber are disclosed as being useful as protective fillers in situations where the protective filler is subjected to high temperatures and pressures.