Resins, useful for breaking crude oil emulsions, are prepared by condensation of a disubstituted phenol aromatic amine, benzoic acid or amide with formaldehyde followed by alkoxylation

摘要

Resins useful in methods of breaking oil-water emulsions. The resins obtained by reacting a compound of formula 1 with an aldehyde and alkoxylating, in any order:wherein X is -NHR1; -COOH; or -CONHR2; andis ortho-, meta- or para- to X and is a radical of -O-R3; -C(O)R4; -OC(O)R5; -NR6R7; wherein R1-R7 values are defined herein.