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:
Mar. 02, 1976
Filed:
Oct. 23, 1973
Applicant:
Inventor:
Lawrence W Frost, Murrysville, PA (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
260 65 ; 260 / ; 260 / ; 260 / ; 260 / ; 428474 ;
Abstract
Polymers containing both oxadiazole and imide recurring units are made from soluble polymeric precursors that contain hydrazide and/or amic acid recurring units. Dehydration of the hydrazide produces the oxadiazole unit and dehydration of the amic acid produces the imide unit. The oxadiazole unit may also be advantageously formed in various monomeric hydrazine compounds. The monomeric hydrazine compounds are made reactive by converting the dinitroso form of the compound into a reactive diamino form. The polymers may be used as molding and laminating resins, wire coatings, films, filaments and adhesives.