Vesiculated polymer granules

Details Vesiculated polymer granules Vesiculated polymer granules

1989-02-02

1990-04-17

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621687, 1621811, D21H 360

Patent

active

049177656

ABSTRACT:
Vesiculated granules of cross-linked carboxylated polyester resin prepared by the free radical polymerization of a dispersion of an ethylenically unsaturated monomer, a carboxylated unsaturated polyester resin having an acid value of from 5-50 mg KOH/g and an alkyl acryloyl derivative. Aqueous compositions comprising the granules are used in conjunction with fibrous cellulosic or non-cellulosic materials for the preparation of paper containing the vesiculated polymeric granules dispersed therein. The paper has improved optical opacity.

REFERENCES:
patent: 3822224 (1974-07-01), Gillan et al.
patent: 3933579 (1976-01-01), Kershaw et al.

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