Retention aids

Details Retention aids Retention aids

1984-08-20

1985-05-07

Smith, William F.

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621685, 5253267, 526263, D21H 338

Patent

active

045156581

ABSTRACT:
Certain copolymers with lower alkyl quaternary ammonium salts of 1-acryloyl-4-methyl piperazine, particularly copolymers containing acrylamide, give outstanding results as fine and filler retention agents used in the manufacture of paper.

REFERENCES:
patent: 3284393 (1966-11-01), Vanderhoff et al.
patent: 4067876 (1978-01-01), Ferruti et al.
Pulp and Paper, Third Edition, vol. 3, edited by James P. Casey, John Wiley & Sons, New York, 1981, p. 1599, et seq.
H. Tanaka, K. Tachiki, & M. Sumimoto, Tappi, 62(1), 41-44 (1979).

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