Patent ID: 8871140
Filing Date: 2014-10-28
Classification: B01D,B22F,B29C,B82Y,C04B,C09D,C22C,D01D,D01F,Y10T

Abstract:
1. A method of manufacturing inorganic hollow yarns, comprising: providing a composition comprising 45-60 wt % of a self-propagating high temperature reactant, 6-17 wt % of a polymer, 0.1-4 wt % of a dispersant, and the balance of an organic solvent; wet-spinning the composition through a spinneret to form wet-spun yarns; washing and drying the wet-spun yarns to form polymer-self propagating high temperature reactant hollow yarns; and heat-treating the polymer-self propagating high temperature reactant hollow yarns to remove a polymeric component from the polymer-self propagating high temperature reactant hollow yarns while inducing self-propagating high temperature reaction of the self-propagating high temperature reactant to form inorganic hollow yarns.