PROCESS FOR THE PRODUCTION OF CATIONIC STARCH

摘要

The present invention relates to a process for producing novel cationic starch comprising the step of reacting starch having cyanoethyl groups or starch having cyanoethyl groups and quaternary aminoalkyl groups with hydroxylamine or the salts thereof to amidoximating the reaction product. The resulting cationic starch of the invention exhibits significant advantages as compared with those of conventional cationic starch as a dry strengthening agent.