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. 24, 1981
Filed:
Oct. 31, 1978
Applicant:
Inventors:
Thomas P Concannon, Newtown Square, PA (US);
Eva M Vary, Wynnewood, PA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ;
U.S. Cl.
CPC ...
428422 ; 260 / ; 4273853 ; 4273884 ; 4273885 ; 4274071 ; 427409 ; 427421 ; 525200 ;
Abstract
Blends of PTFE and perfluorinated ether copolymers of TFE and perfluoro(propyl vinyl ether) provide coating compositions which have reduced crystallinity and useful lives superior to what would be expected from averaging the properties of the unblended resins themselves.