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:
Jan. 05, 1993
Filed:
May. 20, 1991
Applicant:
Inventors:
Herbert Schreiber, Wollerau, CH;
Wolfgang Saur, Buttikon, CH;
Assignee:
Gurit-Essex AG, Freienbach, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J / ;
U.S. Cl.
CPC ...
1563073 ; 1563315 ; 174259 ; 4284735 ; 525490 ; 528163 ;
Abstract
An adhesive having a content of a thermically curable oxazene resin which contains at least one 1-oxa-3-aza tetraline group in the molecule, optionally in combination with at least one curable epoxy compound, is used for bonding polyimide films to films of the same kind or to other substrates, particularly metal foils. Such bondings are highly heat-resistant and have an excellent peeling resistance. Therefore, they are suitable for the manufacture of printed circuit boards having high thermal stability and peeling resistance.