Methods for inhibiting barium sulfate deposition using a poly(am

Details Methods for inhibiting barium sulfate deposition using a poly(am Methods for inhibiting barium sulfate deposition using a poly(am

1992-08-24

1993-10-26

Jones, W. Gary

Paper making and fiber liberation

Processes and products

Non-fiber additive

162166, 1621682, 162199, D21H 1756

Patent

active

052562530

ABSTRACT:
The present invention provides for methods of inhibiting the formation and deposition of barium sulfate on the surfaces of papermaking systems. The inventive treatments comprise adding an effective amount of a poly(amine) compound to the papermaking systems. Representative polymers include polyallylamine, polytrimethylallylammonium chloride and polyvinylamine.

REFERENCES:
patent: 3549548 (1970-12-01), Newman
patent: 4190462 (1980-02-01), De Jong et al.
patent: 4765867 (1988-08-01), Dreisbach et al.
patent: 4937002 (1990-06-01), Bainbridge et al.
patent: 5038861 (1991-08-01), Shuler
patent: 5059333 (1991-10-01), Hen
Sanborn, J. R., "Non Biological Deposits Associated w/ Slime Problems", Paper Trade J., Mar. 29, 1965, pp. 42-43.

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