Method for manufacturing chitosan fiber

Details Method for manufacturing chitosan fiber Method for manufacturing chitosan fiber

1997-08-26

1999-04-27

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

D01F 400

Patent

active

058978216

ABSTRACT:
The present invention offers a safe and economic method for manufacturing chitosan fiber wherein an aqueous solution of sodium thiocyanate is used. In the present invention, chitosan having a degree of deacetylation of not less than 60% is dissolved in an aqueous solution of not less than 44% by weight of sodium thiocyanate and the resulting spinning solution is subjected to a wet spinning to manufacture a chitosan fiber.

REFERENCES:
patent: 4029727 (1977-06-01), Austin et al.
patent: 4062921 (1977-12-01), Austin
Abstract of Japan 56-26,049 (Published Mar. 13, 1981).
Abstract of Japan 60-59,123 (Published Apr. 5, 1985).
Abstract of Japan 63-175,117 (Published Jul. 9, 1988).
Abstract of Japan 1-250,413 (Published Oct. 5, 1989).

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