High standard viscosity quaternary Mannich microemulsions

Details High standard viscosity quaternary Mannich microemulsions High standard viscosity quaternary Mannich microemulsions

1996-06-04

2000-03-14

Reddick, Judy M.

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...

210733, 210734, 524555, 524812, 524801, 524827, C08J 300

Patent

active

060374063

ABSTRACT:
Inverse microemulsions having a Standard Viscosity of at least about 3.3 cps are disclosed which comprise an aqueous phase of dispersed micelles containing water and an (alk)acrylamide-based polymer substituted with at least 1 mole percent of quaternized tertiary aminomethyl groups, wherein said microemulsion is derived from a microemulsion containing greater than about 20 percent, by weight, and less than about 40 percent, by weight, of aqueous phase polymer solids, based on said microemulsion. A method of making said microemulsions and use thereof to dewater dispersions of suspended solids are also taught.

REFERENCES:
patent: 4956399 (1990-09-01), Kozakiewicz et al.
patent: 5037881 (1991-08-01), Kozakiewicz et al.
patent: 5132023 (1992-07-01), Kozakiewicz et al.
patent: 5380444 (1995-01-01), Ryan et al.
patent: 5512184 (1996-04-01), Ryan et al.

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