Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1989-07-17
1991-12-24
Simmons, David A.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
1621681, 162176, 162177, 162199, 162DIG4, D21D 300
Patent
active
050749617
ABSTRACT:
The invention is a process for controlling pitch deposition from pulp in papermaking systems, by an effective amount of a polymer having methyl ether groups pendant to the backbone of the polymer to the pulp term "polymer". A preferred embodiment of the invention is controlling pitch deposition by adding an effective amount of a water soluble cellulose ether.
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Dreisbach David D.
Gomes Gilbert S.
Betz Laboratories Inc.
Dang Thi
Ricci Alexander D.
Simmons David A.
Von Neida Philip H.
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