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:
Aug. 30, 1977
Filed:
Apr. 19, 1976
Applicant:
Inventors:
Fred E Arnold, Centerville, OH (US);
Frederick L Hedberg, Dayton, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
260 49 ; 260 / ; 260 / ; 260 65 ; 260 / ; 260 / ;
Abstract
Thermally stable, highly fused imide polymers are prepared by reacting 2,2'-bis(phenylethynyl)-4,4'-diaminobiphenyl or 2,2'-bis-(phenylethynyl)-5,5'-diaminobiphenyl with an aromatic dianhydride. The polyimides are particularly suitable for use in high temperature applications, such as in the fabrication of fiber reinforced structural composites, fibrous materials and protective coatings.
Arnold, Fred. (1977). Thermally stable, highly fused imide compositions (U.S. Patent No. 4045409). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4045409
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile