Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1987-09-08
1989-01-03
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524158, 524161, 524457, 524505, 524747, 526209, C08L 000
Patent
active
047957727
ABSTRACT:
A stable latex composition possessing a viscosity of less than about 50 cp. comprised of an ethylacrylate/methylacrylic acid/ acrylic acid polymer and co-surfactant system comprising a nonylphenol polyethylene oxide ether sulfate and a propoxylated, ethoxylated propylene glycol nonionic surfactant block polymer useful for increasing the viscosity of water that is injected into subterranean petroleum bearing formations for the enhanced recovery of the petroleum.
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Reddick J. M.
Schofer Joseph L.
Thompson Alan H.
Union Oil Company of California
Wirzbicki Gregory F.
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