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:
Feb. 23, 1993
Filed:
Sep. 27, 1989
Applicant:
Inventors:
Jack D Boyd, Westminster, CA (US);
Linas N Repecka, Lakewood, CA (US);
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525423 ; 525426 ; 525436 ; 525471 ; 525535 ; 525537 ; 428113 ; 428240 ; 428283 ; 428413 ; 4284735 ; 428524 ;
Abstract
Bismaleimide resin systems containing low viscosity epoxy resins and a swellable or soluble thermoplastic when utilized to impregnate intermediate modulus carbon fiber are capable of preparing quasiisotropic composites, which, when cured, exhibit compression strengths after impact of greater than 47-50 ksi after an impact of 1500 in-lb/in.