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:
Sep. 25, 1979
Filed:
Apr. 25, 1977
Leonard E Edelman, Penn Hills Township, Allegheny County, PA (US);
Gerhard R Sprengling, Derry Township, Westmoreland County, PA (US);
Louis A Cargnel, Unity Township, Westmoreland County, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A stripper composition for thermoset resins is disclosed which comprises about 1 to about 99% of an aromatic compound which has a boiling point over 180.degree. C. and is a phenol or a primary or secondary amine, and about 1 to about 99% of a carboxylic acid compound which has a boiling point over 180.degree. C. and is a rosin acid or a mono- or di-carboxylic fatty acid or an ester thereof. The composition also preferably includes sufficient hydrogen bonding compound to react with any acid present in the composition plus about 20 to about 50% in excess of that amount. A swelling agent is also preferably included.