Hydrophobic polyelectrolyte coagulants for the control of...

D - Textiles – Paper – 21 – H

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D21H 21/02 (2006.01) D21H 17/41 (2006.01)

Patent

CA 2100414

A method for controlling pitch in papermaking systems which comprises the step of adding a hydrophobic polyelectrolyte copolymer coagulant to pulp and paper process water. The hydrophobic polyelectrolyte copolymer coagulant comprises diallyldimethylammonium chloride and a hydrophobic monomer selected from the group consisting of: quaternized dimethylaminoethylacrylates and quaternized dimethylaminoethylmethacrylates.

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