Dispersion

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 21/16 (2006.01)

Patent

CA 2520642

The invention relates to an aqueous dispersion useful for internal sizing or surface sizing in the production of paper, comprising at least one cellulose reactive sizing agent selected from the group consisting of ketene dimers and multimers, at least one cellulose non-reactive sizing agent and at least one emulsifier selected from the group consisting of oxyalkylene phosphate and sulfate esters and salts thereof. The invention further concerns a process for its preparation, use thereof, and processes for the production of paper.

L'invention concerne une dispersion aqueuse utile pour le collage interne ou le collage en surface dans la production de papier. Cette dispersion contient au moins une substance colle réactive à la cellulose sélectionnée dans le groupe constitué de cétènes dimères et multimères, au moins une substance colle non réactive à la cellulose et au moins un émulsifiant sélectionné dans le groupe constitué de phosphate d'oxyalkylène et d'esters de sulfate et de leurs sels. L'invention concerne également son procédé de préparation, son utilisation et des procédé de production de papier.

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