Demulsifier for water-in-oil emulsions, and method of use

Details Demulsifier for water-in-oil emulsions, and method of use Demulsifier for water-in-oil emulsions, and method of use

C - Chemistry, Metallurgy

08

G

C08G 63/91 (2006.01) B01D 17/04 (2006.01) B01D 17/05 (2006.01) C08G 65/329 (2006.01) C10G 33/04 (2006.01)

Patent

CA 2151762

A water-in-oil demulsifier is prepared by (a) reacting a high molecular weight polyalkylene glycol (PAG) with ethylene oxide (EO) to form a PAG/EO adduct, (b) reacting esterification of the PAG/EO adduct with a diacid anhydride to form a diester, (c) reacting the diester with a vinyl monomer, and (d) additional esterification of the step (c) product with a polyhedric material.

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