Modification of starch

Details Modification of starch Modification of starch

C - Chemistry, Metallurgy

08

B

C08B 31/00 (2006.01) C08L 3/08 (2006.01) D21H 17/29 (2006.01) D21H 21/10 (2006.01)

Patent

CA 2195498

A process for modification of cationic starch at which the cationic starch is treated, in the presence of water, with an aluminium compound. The modified cationic starch is useful as a retention agent. The invention also relates to a method for improving retention and/or dewatering in papermaking at which cationic starch is modified by the process.

rocédé pour modifier un amidon cationique, au cours duquel celui-ci est traité, en présence d'eau, avec un composé d'aluminium. L'amidon cationique modifié est utile comme agent de rétention. En outre, on présente une méthode pour améliorer la rétention et(ou) l'essorage en papeterie, au cours de laquelle l'amidon cationique est modifié suivant le procédé.

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