Papermaking aid

Paper making and fiber liberation – Processes and products – Non-fiber additive

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Details

1621645, 1621646, 1621681, 1621682, 1621683, 1621684, 1621685, 1621686, 162175, 1621811, 1621812, 1621813, 1621814, 1621815, 1621816, 162183, D21H 328, D21H 336

Patent

active

046438017

ABSTRACT:
An improved binder for use in paper-making contains three ingredients, a cationic starch having a degree of substitution of at least 0.01, a high molecular weight anionic polymer having a molecular weight of at least 500,000 and a degree of anionic substitution of at least 0.01, and a dispersed silica having a particle size ranging from between about 1-50 nanometers.

REFERENCES:
patent: 3253978 (1966-05-01), Bodendorf et al.
patent: 4385961 (1983-05-01), Svending et al.

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