Pitch control aid

D - Textiles – Paper – 21 – H

Patent

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D21H 17/06 (2006.01) A01N 25/08 (2006.01) D21H 21/02 (2006.01) D21H 17/02 (2006.01) D21H 17/07 (2006.01)

Patent

CA 1288907

ABSTRACT PITCH CONTROL AID A method of controlling pitch in an aqueous system involved in paper making as described which comprises adding a cationically modified tannin to the system.

565339

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