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:
Jul. 22, 1986
Filed:
Jan. 28, 1985
Applicant:
Inventor:
Roscoe A Pike, Windsor, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428287 ; 156264 ; 1563075 ; 427289 ; 427370 ; 428408 ; 4284735 ;
Abstract
A method of making a fiber reinforced polyimide matrix composite article is described. The method comprises preparing an aqueous solution of a polyimide matrix material containing sufficient nonionic surfactant such that the surface tension of the solution is about 35 dynes per centimeter or lower. The solution is then coated onto the fibers and the coated fibers formed into tapes. The tapes are then dried, cut into predetermined shapes and laid one on top of the other to form a lay-up. The lay-up is then densified under heat and pressure forming a polyimide matrix composite article.