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:
Nov. 26, 1985
Filed:
Jun. 21, 1984
Applicant:
Inventors:
Ian W Sorensen, Ellicott City, MD (US);
Robert S Kiwak, Ellicott City, MD (US);
Assignee:
Bendix Corporation, , US;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; D01F / ;
U.S. Cl.
CPC ...
4234471 ; 4234472 ; 423448 ; 423460 ;
Abstract
A continuous fiber composite having carbon microfibers dispersed in the resin filling the interstices between the continuous fibers to enhance the transverse properties of the composite. The carbon microfibers are made by soaking carbon fibers in an intercalating acid solution comprising a mixture of fuming nitric and sulfuric acid to weaken the intercrystallite bonds. Gentle stirring of solution separates the carbon microfibers from the host fibers. The microfibers are then separated from the intercalating acid solution and washed to remove the residual acid.