Method of producing porous hollow fibrous tubes

Details Method of producing porous hollow fibrous tubes Method of producing porous hollow fibrous tubes

1989-01-27

1992-03-17

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By treating occluded solids

264 41, 2642091, 26421119, 26421116, 21050023, 210505, D01D 5247

Patent

active

050966405

ABSTRACT:
A method of producing a highly porous melt spun fibrous tube for use as a separation medium comprising melt spinning a blend containing from 30 to 70 parts by weight of a first polymeric component and from 70 to 30 parts by weight of a second polymeric component to form a tube having a wall consisting of interpenetrating networks of the two polymeric components and, using a suitable solvent, leaching out of the tube wall one of the two polymer networks so producing a tube having a wall comprising the other polymer network.

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patent: 4764560 (1988-08-01), Mitchell
Bryce Maxwell and Guillermo L. Jasso, "The Stability of Blends of Incompatible Thermoplastics", Polymer Engineering and Science, mid-Aug., 1983, vol. 23, No. 11, pp. 614-617.

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