Polyamidoamine/epichlorohydrin resins bearing polyol...

Details Polyamidoamine/epichlorohydrin resins bearing polyol... Polyamidoamine/epichlorohydrin resins bearing polyol...

C - Chemistry, Metallurgy

08

G

C08G 73/02 (2006.01) D21H 17/55 (2006.01) D21H 21/18 (2006.01) D21H 21/20 (2006.01) D21H 17/54 (2006.01)

Patent

CA 2297131

Compositions suitable for use as dry strength additives comprising water soluble polyamidoamine/epichlorohydrin resin bearing polyol sidechains wherein the weight fraction of the polyol in the resin is less than 50 percent by weight and the polyol sidechain is attached to the polyamidoamine/epichlorohydrin resin by carbon-nitrogen bond, such as amide bond or secondary or tertiary amine bonds.

L'invention concerne des compositions pouvant être utilisées comme additifs de résistance à l'état sec. Ces compositions comprennent une résine de polyamidoamine/épichlorhydrine soluble à l'eau, supportant des chaînes latérales de polyol. Dans ces dernières, la fraction de poids du polyol dans la résine est inférieure à 50 pour cent en poids et la chaîne latérale de polyol est fixée à la résine de polyamidoamine/épichlorhydrine par une liaison carbone-azote, telle qu'une liaison d'amide ou des liaisons d'amine secondaires ou tertiaires.

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