Composition having a base of cellulose formate capable of produc

Details Composition having a base of cellulose formate capable of produc Composition having a base of cellulose formate capable of produc

1995-06-06

1996-12-17

Edwards, Newton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

428364, 428393, D02G 300

Patent

active

055851819

ABSTRACT:
The present invention provides a composition having a base of cellulose formate capable of producing fibers or films, containing as a solvent one or more compounds selected from the group consisting of alkylsulfoxides, lactams, acyclic amides and cyclic derivatives of urea. The invention further provides a process for obtaining these fibers and films, and a regenerated cellulose fiber having a degree of substitution by formate groups of less than 3%. The fiber is useful for textile applications or in order to reinforce tires.

REFERENCES:
patent: 3884631 (1975-05-01), Vigo et al.
patent: 4302252 (1981-11-01), Turbak et al.
patent: 4744932 (1988-05-01), Browne
patent: 4839113 (1989-06-01), Villaine et al.
patent: 4926920 (1990-05-01), Gouttebessis et al.
WO-A-9116357 Oct. 31, 1991.
Journal Of Polymer Science, Polymer Letters Edition, vol. 24, No. 10, 1986, New York, US, pp. 495-501 -T. Fujimoto et al. "Reaction of Cellulose with Formic Acid and Stability of Cellulose Formate".
Angewandte Makromolekulare Chemie, vol. 198, No. 3451, 1992, Basel, Switzerland, pp. 155-164, M. Schnabelrauch et al., "Readily Hydrolyzable Cellulose Esters as Intermediates for the Regioselective Derivatization of Cellulose" *summary, conclusions*.

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