Vesiculated polymer granules

Details Vesiculated polymer granules Vesiculated polymer granules

1988-12-16

1989-05-02

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 62, 521 63, 521 64, 521 841, 521149, C08J 936

Patent

active

048268810

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), Gilfan
patent: 4278575 (1981-07-01), Nakamura et al.

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