E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
31/31
E21B 43/22 (2006.01)
Patent
CA 1242575
A B S T R A C T AQUEOUS PETROLEUM SULPHONATE SURFACTANT SYSTEMS CONTAINING PHENYLETHERSULPHONATE COSURFACTANTS An aqueous petroleum sulphonate surfactant system containing an alkylpolyalkoxyphenylethersulphonate cosurfactant has a salt tolerance comparable to one containing NECDOL?25-3S and has greater heat stability.
460068
Shell Canada Limited
Smart & Biggar
LandOfFree
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