Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1980-03-21
1982-04-06
Smith, William F.
Paper making and fiber liberation
Processes and products
Non-fiber additive
162180, D21H 334, D21H 336
Patent
active
043234259
ABSTRACT:
This invention relates to improved rosin sizes, and to improved methods for preparing sized paper. In one embodiment, sized paper is prepared by adding the improved rosin size and a polyamine retention aid to a pulp slurry before sheet formation, without the use of aluminum sulfate. In another embodiment, paper is surface-sized with the improved rosin size in the absence of both aluminum sulfate and retention aids.
REFERENCES:
patent: 2772966 (1956-12-01), Daniel et al.
patent: 3376159 (1968-04-01), Drennen et al.
patent: 3406139 (1968-10-01), Hurwitz et al.
Hotz et al., Paper Trade Journal, Feb. 20, 1941, pp. 95-99.
Dowthwaite Edwin
Hiskens Ian R.
Scullin James P.
Smith William F.
Spath Thomas E.
Tenneco Chemicals Inc.
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