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...
Patent
1982-05-03
1984-08-14
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...
524110, 524111, 524140, 524233, 524236, 524251, 524574, 524577, 524565, 524583, 524586, C08K 505
Patent
active
044658010
ABSTRACT:
The present invention relates to a process for the viscosification of an aqueous liquid which includes the steps of forming a solvent system of an organic liquid or oil and a polar cosolvent, the polar cosolvent being less than about 15 weight percent of the solvent system, a viscosity of the solvent system being less than about 100 cps; dissolving a neutralized sulfonated polymer in the solvent system to form a solution, a concentration of the neutralized sulfonated polymer in the solution being about 0.01 to about 0.5 weight percent, a viscosity of the solution being less than about 200 cps; and admixing or contacting said solution with about 5 to about 500 volume percent water, the water being immiscible with the organic liquid and the polar cosolvent and neutralized sulfonated polymer transferring from the organic liquid to the water phase, thereby causing the water phase to thicken.
REFERENCES:
patent: 3216962 (1965-11-01), Gatza
patent: 3287306 (1966-11-01), Hatch et al.
patent: 3629175 (1971-12-01), Moore et al.
patent: 3679641 (1972-07-01), Takeya
patent: 4322329 (1982-03-01), Lundberg et al.
Lundberg Robert D.
Peiffer Dennis G.
Walker Thad O.
Exxon Research & Engineering Co.
Nanfeldt Richard E.
Sarofim N.
Schofer Joseph L.
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