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:
May. 27, 1980
Filed:
Dec. 04, 1978
Applicant:
Inventors:
Wolfgang Pip, Darmstadt, DE;
Klaus Winter, Seeheim, DE;
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428215 ; 156220 ; 156330 ; 156332 ; 428313 ; 428315 ; 428322 ; 428473 ;
Abstract
Laminates comprising at least one reinforcing layer, for example of metal or of fiber-reinforced duroplast resin, bonded to a foamed polyimide layer are disclosed, wherein the particular nature of the polyimide foam imparts high temperature strength properties to the laminates and permits them to be made by methods, also disclosed, employing more extreme conditions of temperature, pressure, and time than are otherwise operable for making conventional laminates.