AMPS copolymer emulsions with improved stability

Details AMPS copolymer emulsions with improved stability AMPS copolymer emulsions with improved stability

1991-03-27

1993-02-09

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...

524505, C08J 302

Patent

active

051853957

ABSTRACT:
Copolymer water-in-oil emulsions of 2-acrylamido-2-methylpropane sulphonic acid (AMPS) monomer and an anionic comonomer such as methacrylic acid are prepared with substantially less coagulum formation by means of a specific dual surfactant system. The resultant emulsions have enhanced long-term storage stability.

REFERENCES:
patent: 4203877 (1980-05-01), Baker
patent: 4918123 (1990-04-01), Yang et al.

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