Starch compositions and methods of making starch compositions

Details Starch compositions and methods of making starch compositions Starch compositions and methods of making starch compositions

C - Chemistry, Metallurgy

08

L

C08L 3/02 (2006.01) C08L 3/00 (2006.01) C08L 3/08 (2006.01) D21H 17/28 (2006.01) C08L 1/28 (2006.01) C08L 33/26 (2006.01)

Patent

CA 2517275

A starch composition is made by cooking a starch and combining the cooked starch with a polymer, the polymer containing anionic groups or potential anionic groups. Another starch composition is made by combining a starch with a polymer, the polymer containing anionic groups or potential anionic groups, and cooking the combined starch and polymer composition. A dry starch composition, suitable for forming an additive for a paper furnish, includes a starch and a polymer containing anionic groups or potential anionic groups. Methods of making the starch composition are also disclosed.

L'invention concerne une composition à base d'amidon produite par un procédé consistant à cuire un amidon, puis à mélanger l'amidon cuit avec un polymère, ce polymère contenant des groupes anioniques ou des groupes anioniques potentiels. Une autre composition à base d'amidon est produite par un procédé consistant à mélanger un amidon avec un polymère, ce polymère contenant des groupes anioniques ou des groupes anioniques potentiels, puis à cuire le mélange ainsi formé. Une composition sèche à base d'amidon, adaptée pour former un additif pour de la pâte de papier, comprend un amidon et un polymère contenant des groupes anioniques ou des groupes anioniques potentiels. L'invention concerne également des procédés de production de cette composition à base d'amidon.

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