D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
9/62
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
Bennison John James
Clifford Richard Purdie
Bennison John James
Betzdearborn Inc.
Clifford Richard Purdie
Gowling Lafleur Henderson Llp
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