Organic pigments

Details Organic pigments Organic pigments

1981-12-30

1984-09-04

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621682, 1621683, 1621685, 427391, 428407, 428511, 428513, 428514, 4285371, D21H 382

Patent

active

044695551

ABSTRACT:
Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.

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