| abstract |
Process for the production of cellulose derivatives, wherein in step a) the cell is impregnated with an aqueous or alcoholic solution of an alkali metal or alkaline earth metal hydroxide, oxide and / or carbon, in which cell b) is impregnated in step b) in step (c), a substitution or reaction of the desired derivative of the cell with the resulting substitution degree of m is obtained, the principle being that the cell is activated with ammonia. , in the case of the ratio of alkali to anhydroglucose of the cell of step (c), there is no difference in the degree of derivation of the cell. |