Stable cationic-inversed anionic latices

Details Stable cationic-inversed anionic latices Stable cationic-inversed anionic latices

1986-12-31

1988-09-13

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524724, 524853, 526220, C08K 516, C08J 2300, C08F 200

Patent

active

047711000

ABSTRACT:
A stable anionic acrylic latex is prepared by first preparing a cationic acrylic latex by free radical polymerization of a mixture of ethylenically unsaturated monomers, at least one of which contains a carboxylic acid group, in an aqueous acidic medium and in the presence of an externally added cationic surfactant, and then adding a base to said cationic acrylic latex in an amount sufficient to form an anionic acrylic latex having a pH of about 7 or higher.

REFERENCES:
patent: 3963688 (1976-06-01), Lorenz et al.
McCutcheon's Functional Materials, North American edition, 1982.

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