Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1984-03-26
1986-07-08
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
D21H 358
Patent
active
045991391
ABSTRACT:
Dewatering of wet paper webs in general and particularly under high vacuum is improved by the addition of a Mannich acrylamide polymer having a molecular weight of not greater than about 300,000 to an aqueous slurry of papermaking fibers having a pH less than about 5.5.
American Cyanamid Company
Chin Peter
Van Riet Frank M.
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