Method of producing alkali-soluble cellulose derivative

Details Method of producing alkali-soluble cellulose derivative Method of producing alkali-soluble cellulose derivative

C - Chemistry, Metallurgy

08

B

260/215

C08B 3/00 (2006.01) C08B 15/06 (2006.01)

Patent

CA 1177073

ABSTRACT OF THE DISCLOSURE An alkali-soluble cellulose derivative is produced by treating cellulose with liquid ammonia having urea dissolved therein, removing the ammonia, resulting in cellulose having urea distributed therethrough and heating the thus obtained cellulose-urea to cause reaction between the urea and cellulose and form alkali-soluble cellulose carbamate. This cellulose carbamate can be precipitated from alkaline solution in the form of cellulose carbamate film or fiber.

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