초록

Essentially inorganic monolithic hollow fibers having a radially anisotropic internal void volume wall structure. Process for the production of such fibers. Apparatus and processes using such fibers.

대표청구항 ▼

A process comprising (a) preparing a solution of an organic fiber-forming polymer, containing, in a uniformly dispersed form, a sinterable inorganic material; (b) extruding the inorganic material-containing polymer solution through a hollow fiber spinneret; (c) forming a polymeric precursor hollow f

A process comprising (a) preparing a solution of an organic fiber-forming polymer, containing, in a uniformly dispersed form, a sinterable inorganic material; (b) extruding the inorganic material-containing polymer solution through a hollow fiber spinneret; (c) forming a polymeric precursor hollow fiber, laden with the inorganic material, having a radially anisotropic internal void volume wall structure; (d) treating the polymeric precursor hollow fiber to remove the organic polymer; and (e) sintering the resulting inorganic material; provided that steps (d) and (e) are conducted under conditions that maintain a radially anisotropic internal void volume wall structure in the hollow fiber.