Surfactants

Details Surfactants Surfactants

C - Chemistry, Metallurgy

11

D

134/50, 134/3.3

C11D 1/76 (2006.01) B01F 17/00 (2006.01) C10M 173/00 (2006.01)

Patent

CA 1126123

Compositions useful as surfactants in the emulsification of oils in aqueous media are obtained by blending two types of polyester which are the products of condensation of an alk(en)yl succinic anhydride with a polyalkylene glycol, the one type being derived from an anhydride in which the alk(en)yl group contains 40-500 carbon atoms, e.g. polyisobutenyl succinic anhydride, and the other type being derived from an anhydride in which the alk(en)yl group contains 8-18 carbon atoms, e.g. dodecenyl succinic anhydride. The compositions are superior in effect to either type of polyester separately, in enabling emulsions of high stability to be produced with a low energy input.

323599

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