Cellulose solution in water and nmmo

Details Cellulose solution in water and nmmo Cellulose solution in water and nmmo

C - Chemistry, Metallurgy

08

L

C08L 1/02 (2006.01) C08B 1/00 (2006.01) C08J 3/09 (2006.01) D01F 2/02 (2006.01)

Patent

CA 2046783

7835-MR ABSTRACT OF THE DISCLOSURE A solution of cellulose in water and N-methylmorpholine-N--oxide (NMMO) is stabilized at 0.01 to 1 %, preferably 0.1 % H202 and 0.01 to 2 %, preferably 0.1 % of an H202 stabilizer, preferably oxalic acid or a salt thereof during formation of the solution and during heating to prevent discoloration of the cellulose and reduce the composition of NMMO. - 15 -

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