Process for production of cellulose acetate molding materials

Details Process for production of cellulose acetate molding materials Process for production of cellulose acetate molding materials

1988-10-07

1989-12-19

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264211, 26421111, 106194, 106196, D01F 202, D01F 230

Patent

active

048881473

ABSTRACT:
A process for producing a cellulose acetate molding material which comprises dissolving cellulose diacetate in a mixed solvent of acetone and water to prepare a dope and then spinning or film forming the dope, wherein at least one compound selected from the group consisting of water-soluble salts and bases is added to the water to be used in preparation of the dope.

REFERENCES:
patent: 2052590 (1936-09-01), Whitehead
patent: 2966422 (1960-12-01), Grandner
patent: 3347689 (1967-10-01), Futami et al.

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