Process for the production of cellulose ester fibrets

Details Process for the production of cellulose ester fibrets Process for the production of cellulose ester fibrets

1990-12-14

1991-12-10

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

264 8, 264 11, 264 14, 264 38, 536 58, 536 69, 536 77, B29B 910, D01F 1302

Patent

active

050715992

ABSTRACT:
A process for the production of cellulose ester fibrets wherein a solution of the cellulose ester is contacted with a non-solvent for the cellulose ester in a precipitation zone under shearing conditions, and a solvent-nonsolvent mixture is separated from the formed fibrets and recycled to the precipitation zone.

REFERENCES:
patent: 3042970 (1962-07-01), Terenzi
patent: 3961007 (1976-06-01), Caputi, Jr. et al.
patent: 4047862 (1977-09-01), Keith
patent: 4192838 (1980-11-01), Keith
patent: 4205025 (1980-05-01), Hart et al.

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