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. 20, 1986
Filed:
May. 15, 1985
Applicant:
Inventors:
Zal N Sanjana, Penn Hills Township, Allegheny County, PA (US);
Joseph R Marchetti, Greensburg, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361400 ; 1563071 ; 1563074 ; 1563077 ; 174 685 ; 428252 ; 428267 ; 428272 ; 428413 ; 428416 ; 428901 ; 428902 ;
Abstract
Disclosed is a composite of a polyaramid woven fabric and a resin. The resin contains water, a water-based emulsion of an epoxy selected from the group consisting of diglycidyl ethers of bisphenol A, diglycidyl ethers of bisphenol F, novolacs, and mixtures thereof, water-compatible curing agents for the emulsion, and a water-compatible catalyst for the emulsion. The emulsion can be cured to the B-stage to form a prepreg and prepregs can be stacked with copper sheets and heated and pressed to form a laminate for use in making a printed wiring board.