Drilling mud compositions containing high molecular weight poly

Details Drilling mud compositions containing high molecular weight poly Drilling mud compositions containing high molecular weight poly

1988-03-04

1989-02-14

Schofer, Joseph L.

Textiles: spinning, twisting, and twining

252 8514, 524447, 524555, C08K 310

Patent

active

048047937

ABSTRACT:
The inverse emulsion polymerization of a monomer of the formula ##STR1## wherein R and R.sup.1 represent hydrogen or a C.sub.1 -C.sub.4 a lkyl group, using a surfactant system having a hydrophilic-lipophilic balance value from 4 to 9, an azo-type free radical initiator and certain hydrocarbon liquids to yield a water-in-oil emulsion of a homopolymer of at least 10.sup.6 average molecular weight, the emulsion having a viscosity less than 10 cps, at 15% solids, 60 rpm Brookfield and 20.degree. C.

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