Paper making and fiber liberation – Processes and products – Reclamation – salvage or reuse of materials
Patent
1997-09-10
1999-11-23
Nguyen, Dean T.
Paper making and fiber liberation
Processes and products
Reclamation, salvage or reuse of materials
162199, 162DIG4, D21F 166, D21C 502
Patent
active
059893923
ABSTRACT:
A method is disclosed for controlling anionic trash and pitch deposition and treating coated broke which comprises the step of adding a polyammonium quaternary to a pulp and papermaking system. The polyammonium quaternary, which may be either branched or crosslinked, comprises at least one cationic monomer, preferably diallyldimethylammonium chloride, and at least one branching or crosslinking monomer, preferably N,N,N-triallylamine or N,N,N-triallylamine hydrochloride.
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Cramm Jeffrey R.
Sherman Laura M.
St. John Michael R.
Tang Jiansheng
Breininger Thomas M.
Brumm Margaret M.
Cummings Kelly L.
Nalco Chemical Company
Nguyen Dean T.
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