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:
Feb. 14, 1978
Filed:
Jan. 16, 1976
Applicant:
Inventor:
Edward J Chu, Parsippany, NJ (US);
Assignee:
Resistoflex Corporation, Roseland, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B / ;
U.S. Cl.
CPC ...
264259 ; 264267 ; 264275 ;
Abstract
A method is described whereby perfluoroalkoxy (PFA) fluorocarbon resin is fusion bonded to polytetrafluoroethylene (PTFE) resin to provide united sections thereof and to provide a bonded or welded interconnection between separate sections of PTFE resin. The welds are obtained under minimal positive pressure, generally below about 40 psi, at a temperature above the gel point of the PTFE resin, generally between 635.degree. F. and 710.degree. F., with subsequent slow cooling under pressures somewhat higher and generally ranging between about 59 psi and 150 psi.