Water-soluble polymers plus natural resins as sizing agents

Details Water-soluble polymers plus natural resins as sizing agents Water-soluble polymers plus natural resins as sizing agents

1987-01-29

1988-09-27

Lieberman, Allan M.

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621683, 162180, D21D 300, D21H 334, D21H 338, D21H 344

Patent

active

047739673

ABSTRACT:
The present invention relates to mixtures of water-soluble synthetic anionic polymers consisting of at least 80%-wt acrylamide and/or methacrylamide and sizing media based on partly or totally saponified natural resins as well as the use of such mixtures in the production of paper and cardboard in order to reduce the absorbency and improve the dry strength of these products.

REFERENCES:
patent: 2343095 (1941-02-01), Smith
patent: 3804788 (1974-04-01), Fonaoka et al.
patent: 4328141 (1982-05-01), Farewell et al.
patent: 4333795 (1982-06-01), Street
Kirk/Othmer, vol. 17, p. 478 (1968).

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