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:
Jun. 11, 1985
Filed:
Sep. 21, 1983
Applicant:
Inventors:
Werner Klostermeier, Klingenberg, DE;
Jeffery D Lasher, Tolland, CT (US);
Gerhard Meyer, Obernburg, DE;
Hans Zengel, Kleinwallstadt, DE;
Assignee:
Akzona Incorporated, Enka, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B28B / ; B05D / ;
U.S. Cl.
CPC ...
428332 ; 15624411 ; 15624424 ; 2641 / ; 264205 ; 4273855 ; 4273881 ; 4273935 ; 428334 ; 428335 ; 428336 ; 428394 ; 428458 ; 4284735 ;
Abstract
A laminate comprising an insoluble, intractable relatively thick layer of a polyimide bonded tightly onto a metallic substrate without the necessity for an intermediate adhesive bonding layer and a process for preparing such by directly extruding a polyamic acid polyimide-precursor onto said substrate and converting said polyamic acid to the polyimide in a single pass in at least two heating stages.