Papermaking aid

Details Papermaking aid Papermaking aid

1986-11-03

1988-06-14

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

106213, 106214, 1621681, 162175, 1621811, 1621812, 1621813, 1621814, 1621815, 1621816, D21H 328, D21H 336

Patent

active

047509740

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: 4272297 (1981-06-01), Brooks et al.
patent: 4388150 (1983-06-01), Sunden et al.

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