Method for producing highly-substituted carboxyalkyl starch

Details Method for producing highly-substituted carboxyalkyl starch Method for producing highly-substituted carboxyalkyl starch

C - Chemistry, Metallurgy

08

B

C08B 31/12 (2006.01) C08B 35/04 (2006.01)

Patent

CA 2414268

The invention relates to a highly substituted carboxyalkyl starch which is obtained by a special slurry method. A conversion of starch with halogenated acids is thereby effected in an organic-aqueous reaction medium in the presence of alkali hydroxide. This starch is used in the chemical industry field.

L'invention concerne un amidon de carboxyalkyle hautement substitué, obtenu par un procédé particulier des solides fluidifiés. Il intervient à cet effet une réaction de l'amidon avec des acides carboxyliques halogénés dans un milieu de réaction organo-aqueux, en présence d'hydroxyde alcalin. Cet amidon s'utilise dans le domaine de l'industrie chimique.

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