Cellulose aminomethanate by acid neutralization

Details Cellulose aminomethanate by acid neutralization Cellulose aminomethanate by acid neutralization

C - Chemistry, Metallurgy

08

B

260/213, 99/89

C08B 15/06 (2006.01) A22C 13/00 (2006.01)

Patent

CA 2015836

CELLULOSE AMINOMETHANATE BY ACID NEUTRALIZATION ABSTRACT OF THE DISCLOSURE This invention relates to an improvement to a process for synthesizing cellulose aminomethanate which comprises slurrying cellulose in an aqueous caustic solution, in the presence of urea; steeping the slurried mixture for a time sufficient to permit swelling of the cellulose for uniform distribution of the urea; and, neutralizing the caustic solution of the steeped slurry by treatment with an acid neutralizing solution. When cellulose aminomethanate is manufactured from product prepared in accord with this process, it has a uniform distribution of substituent throughout the cellulose at the molecular level and comprises a suitable product for manufacturing sausage casing.

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