Process for the production of shaped structures of cellulose

Details Process for the production of shaped structures of cellulose Process for the production of shaped structures of cellulose

1995-02-13

1996-08-27

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264200, 264207, 26421113, 26421114, B29C 4700, D01F 224, D01F 228, D01F 230

Patent

active

055498612

ABSTRACT:
A process for the production of shaped structures of cellulose, in particular fibers of cellulose, by shaping and subsequent regeneration of water-soluble cellulose derivatives is described. The process employs water-soluble alcohols, water-soluble ketones or, in particular, water or mixtures thereof as solvents for the shaping and carrying out the shaping by a dry shaping process.

REFERENCES:
patent: 2129052 (1936-02-01), Fordyce
patent: 3482011 (1969-12-01), Bohler
patent: 4983730 (1991-01-01), Domeshek
European Search Report 95101603.9 May 31, 1995.
Cellulose Derivatives, C. J. Malm, Industrial & Engineering Chemistry (1957).
6019 Macromolecules, 24 (1991) May 26, No. 11, Prep. and Characterization of Cellulose . . . Charles M. Buchanan.

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