Low organic chlorine wet strength resin composition and...

Details Low organic chlorine wet strength resin composition and... Low organic chlorine wet strength resin composition and...

C - Chemistry, Metallurgy

08

G

C08G 65/26 (2006.01) C08G 73/02 (2006.01) C08L 79/02 (2006.01) D21H 17/56 (2006.01) D21H 21/20 (2006.01)

Patent

CA 2178616

Method of preparing a wet-strength resin of the polyamine-epichlorohydrin type in which the E/N ratio is from about 1.0 to about 1.20 and the reaction temperature is no higher than 50 °C, and wet-strength resins having high wet-strength and low amounts of chlorinated compounds produced by said method.

L'invention concerne un procédé de préparation d'une résine résistante à l'état humide, du type polyamine-épichlorohydrine, dans laquelle le rapport E/N est d'environ 1 à environ 1, 20 et où la température de réaction ne dépasse pas 50 ~C. Par ce procédé, on obtient des résines à résistance à l'état humide élevée et qui possèdent de faibles quantités de composés chlorés.

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