Process of making gelled cellulose triacetate product

Details Process of making gelled cellulose triacetate product Process of making gelled cellulose triacetate product

1985-03-21

1987-02-17

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264217, 264218, 264237, 264348, 2523153, B29C 2760

Patent

active

046438564

ABSTRACT:
Gelled cellulose triacetate products are made by mixing with a solution of the cellulose triacetate an amount of miscible liquid nonsolvent agent insufficient to cause gelling, then cooling the mixture or evaporating the solvent to cause gelling.

REFERENCES:
patent: 2768870 (1956-10-01), Drisch et al.
patent: 2999760 (1961-09-01), Cacella et al.
patent: 3846404 (1974-11-01), Nichols
patent: 3917777 (1975-11-01), Asada et al.
patent: 4247498 (1981-01-01), Castro

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