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:
May. 28, 2002
Filed:
Oct. 27, 1998
Richard B. Cass, Ringoes, NJ (US);
Thomas C. Allen, Social Circle, GA (US);
Roland R. Loh, Newark, OH (US);
Other;
Abstract
A filament produced from a wet-spinning process. The process comprising (a) preparing a dispersion of particles of refractory material; (b)preparing a spin mix by mixing said dispersion with a carrier solution comprising a salt of cellulose xanthate, wherein the weight ratio of said particles to cellulose of said cellulose xanthate in said spin mix is greater than about 1:4; (c) wet spinning said spin mix to form at least one filament of cellulose having at least a portion of said particles dispersed therein; and (d) optionally heating said at least one filament to sufficient temperatures and over sufficient durations to remove substantially all of said regenerated cellulose and to sinter said refractory particles to thereby form said at least one filament of refractory material is disclosed for producing fibers of refractory material.