Improved retention and drainage in the manufacture of paper

Details Improved retention and drainage in the manufacture of paper Improved retention and drainage in the manufacture of paper

D - Textiles, Paper

21

H

D21H 21/10 (2006.01)

Patent

CA 2613031

A method of improving retention and drainage in a papermaking process is disclosed. The method provides for the addition of an associative polymer, prepared by an inverse emulsion polymerization process that utilizes multiple, discrete additions of initiator. Additionally, a process for preparation of an associative polymer, prepared by an inverse emulsion polymerization process that utilizes multiple discrete additions of initiator is disclosed.

L'invention concerne un procédé d'amélioration de la rétention et de l'égouttage dans la fabrication du papier. Le procédé comprend l'addition d'un polymère associatif, préparé par un procédé de polymérisation en émulsion inverse avec de multiples additions discrètes d'un amorceur. L'invention concerne également un procédé de préparation d'un polymère associatif, par polymérisation en émulsion inverse avec de multiples additions discrètes d'un amorceur.

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