Hydrophobic polyelectrolyte coagulants for the control of pitch

Details Hydrophobic polyelectrolyte coagulants for the control of pitch Hydrophobic polyelectrolyte coagulants for the control of pitch

1992-07-14

1993-09-21

Jones, W. Gary

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621816, 162199, 162DIG4, D21H 1745

Patent

active

052465470

ABSTRACT:
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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patent: 4968435 (1990-11-01), Neff et al.
patent: 5006596 (1991-04-01), Chen et al.
patent: 5152903 (1992-10-01), Neff et al.

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