Compositions and methods for controlling stickies

Details Compositions and methods for controlling stickies Compositions and methods for controlling stickies

C - Chemistry, Metallurgy

08

K

C08K 5/13 (2006.01) C08G 8/08 (2006.01) C08G 8/28 (2006.01) C08G 59/52 (2006.01) D21C 5/02 (2006.01) D21H 17/06 (2006.01) D21H 17/48 (2006.01) D21H 21/02 (2006.01)

Patent

CA 2359732

Mannich-derivatized polyphenolic compositions prepared by the reaction of a phenolic compound having at least two phenol rings with an aldehyde and an amphoteric compound having both a basic moiety and an acidic moiety are disclosed. Methods for utilizing such compositions in the control of stickie formation in papermaking are also disclosed.

La présente invention concerne des compositions polyphénoliques dérivées par réaction de Mannich obtenue par la réaction d'un composé phénolique possédant au moins deux noyaux de phénol avec un composés aldéhyde et un composé amphotère possédant tous les deux un fragment basique et un fragment acide. Cette invention concerne aussi des procédés d'utilisation de ces compositions permettant de surveiller la formation d'impuretés collantes dans la fabrication du papier.

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