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

1994-08-05

1997-03-11

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252340, 525 32, B01D 1704, C08G 6391, C08L 6700

Patent

active

056097948

ABSTRACT:
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) esterifying 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 polyhydric material.

REFERENCES:
patent: 2950299 (1960-08-01), Kirkpatrick
patent: 3424565 (1969-01-01), Ptacek et al.
patent: 3557017 (1971-01-01), Mange et al.
patent: 3835060 (1974-09-01), Maddox et al.
patent: 4465817 (1984-08-01), Billenstein et al.
patent: 5164116 (1992-11-01), Berkhof et al.
patent: 5460750 (1995-10-01), Diaz-Arauzo
patent: 5472617 (1995-12-01), Barthold et al.
patent: 5505878 (1996-04-01), Taylor et al.

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