Polymeric compositions and methods of using them

Details Polymeric compositions and methods of using them Polymeric compositions and methods of using them

1986-10-28

1988-10-11

Michl, Paul R.

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...

524460, 524556, 524560, 524801, 524923, C08F 614, C08F 624, C08F 222

Patent

active

047772000

ABSTRACT:
Dispersions in water-immiscible liquid of water-soluble or water-swellable polymer particles are stabilized by use of an aqueous emulsion of water insoluble viscosifying polymer particles that are swellable or soluble in the water-immiscible liquid. After adding the emulsion to the water-immiscible liquid, water is removed from around the particles of the viscosifying polymer, preferably by absorption into the water swellable or soluble polymer particles. Water-immiscible liquids in general can be thickened particularly effectively by use of an aqueous emulsion of water insoluble viscosifying polymer particles that are swellable but insoluble in the water-immiscible liquid. These insoluble particles have a dry size below 10 .mu.m and are formed from monomers of which 80 to 100% are hydrophobic, 30 to 100% are polar and hydrophobic, 0 to 20% are hydrophilic and not more than 30% by weight are aromatic.

REFERENCES:
patent: 4138381 (1979-02-01), Chang
patent: 4336173 (1982-06-01), Ugelstad
patent: 4459378 (1984-07-01), Ugelstad
patent: 4460732 (1984-07-01), Buscall
patent: 4530956 (1985-07-01), Ugelstad
patent: 4654397 (1987-03-01), Mueller-Mall

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