Method for making absorbent starch

Details Method for making absorbent starch Method for making absorbent starch

1989-10-27

1992-01-07

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536124, C08B 3108, C08B 3304, C08B 3504

Patent

active

050793543

ABSTRACT:
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.degree. C. to about 150.degree. C.

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