Method for making absorbent starch

Details Method for making absorbent starch Method for making absorbent starch

C - Chemistry, Metallurgy

08

B

260/221.4

C08B 31/12 (2006.01) A61L 15/60 (2006.01)

Patent

CA 2017676

A method for producing a water-swellable, water-insoluble carboxyalkyl starch. The steps of the method involving forming an aqueous dispersion of starch; adding to said aqueous dispersion carboxyalkylating reactants under conditions sufficient to form a water-soluble carboxyalkyl starch having an average degree of substitution between about 0.25 and 1.5; and recovering the carboxyalkyl starch by evaporative drying at a temperature within the range of from about 50°C to about 150°C.

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