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Method for producing refractory filaments

  • US 5,827,797 A
  • Filed: 08/30/1996
  • Issued: 10/27/1998
  • Est. Priority Date: 08/28/1989
  • Status: Expired due to Fees
First Claim
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1. A process of producing at least one filament of refractory material, comprising:

  • preparing a dispersion of particles of refractory material;

    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 2;

    8;

    wet spinning said spin mix to form at least one filament of cellulose having at least a portion of said particles dispersed therein;

    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.

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