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:
Apr. 02, 1991
Filed:
Oct. 21, 1988
Applicant:
Inventors:
Norman J Johnston, Newport News, VA (US);
Terry L St Clair, Poquoson, VA (US);
Robert M Baucom, Newport News, VA (US);
John R Gleason, Hampton, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; C08G / ;
U.S. Cl.
CPC ...
264136 ; 264257 ; 26433112 ; 525432 ; 528352 ; 528350 ;
Abstract
Composite materials with matrices of tough, thermoplastic aromatic polyimides are obtained by blending semi-crystalline polyimide powders with polyamic acid solutions to form slurries, which are used in turn to prepare prepregs, the consolidation of which into finished composites is characterized by excellent melt flow during processing.