Spray drying method of preparing hollow fibers

Details Spray drying method of preparing hollow fibers Spray drying method of preparing hollow fibers

1982-04-02

1983-10-11

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing centrifugal force or rotating forming zone

264 13, 264 42, 264 63, 264DIG19, B29C 600

Patent

active

044091583

ABSTRACT:
Hollow fibers are prepared by spray drying a solution of a film-former in a volatile solvent. The viscosity of the solution must be 1.5 to 10 times the viscosity that usually results in spheres or microspheres. The preferred film-forming substance is a combination of sodium silicate and a "polysalt."

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patent: 3652749 (1972-03-01), Sobel et al.
patent: 3692507 (1972-09-01), Gladney et al.
patent: 3888957 (1975-06-01), Netting
patent: 3975194 (1976-08-01), Farnand et al.
patent: 4039718 (1977-08-01), Kallenborn
patent: 4222977 (1980-09-01), Dobo
patent: 4277269 (1981-07-01), Sweeting
patent: 4303432 (1981-12-01), Torobin
patent: 4320074 (1982-03-01), Birchall et al.
patent: 4348341 (1982-09-01), Furuya et al.

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