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:
Mar. 23, 1976
Filed:
Feb. 28, 1974
Applicant:
Inventors:
Herbert Fitz, Burgkirchen, Alz, DT;
Franz Mayer, Burgkirchen, Alz, DT;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428422 ; 156283 ; 156309 ; 156333 ; 428421 ; 260 / ; 260 4227 ;
Abstract
Shaped structures containing polytetrafluoroethylene are connected with themselves or with another material stable up to 400.degree.C under elevated pressure and temperature using as interlayer between the surfaces to be connected at least one copolymer of tetrafluoroethylene and perfluoroalkyl-perfluorovinyl units in a determined proportion. The composites obtained have a high mechanic strength and the joint has good temperature endurance properties.