Process for control of pitch deposition from pulps in...

Details Process for control of pitch deposition from pulps in... Process for control of pitch deposition from pulps in...

D - Textiles, Paper

21

H

9/59

D21H 17/45 (2006.01) D21H 17/37 (2006.01) D21H 17/43 (2006.01) D21H 21/02 (2006.01)

Patent

CA 2040337

An improved process for controlling natural pitch deposition in pulp and papermaking aqueous systems involves the use of ampholytic polymers containing diallyl dimethyl ammonium quaternary salts and also containing (meth) acrylic acid salts and optionally containing (alkyl) acrylic acid esters or hydroxy esters. These ampholytic polymers give improved results in terms of control of natural pitch in the manufacture of pulp and paper.

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