Richard J Lessard

US Patent:

57283206, Mar 17, 1998

Filed:

Feb 11, 1997

Appl. No.:

8/798253

Inventors:

Robert J. Fiocco - Summit NJ
Kenneth W. Becker - Houston TX
Gerard P. Canevari - Cranford NJ
Richard R. Lessard - Morristown NJ

Assignee:

Exxon Research & Engineering Company - Florham Park NJ

International Classification:

B01F 1710
E02B 1504

US Classification:

252312

Abstract:

An improved dispersant formulation for dispersing oil which contains a mixture of a sorbitan monoester of an aliphatic monocarboxylic acid, a polyoxyethylene adduct of a sorbitan monoester of an aliphatic monocarboxylic acid, an alkali metal salt of a dialkyl sulfosuccinate, a polyoxyethylene adduct of a sorbitan triester or a sorbitol hexaester of an aliphatic monocarboxylic acid and a solvent comprising at least one of a propylene glycol ether, ethylene glycol ether, water, alcohol, glycol, and a paraffinic hydrocarbon.

US Patent:

56184689, Apr 8, 1997

Filed:

Jun 22, 1994

Appl. No.:

8/263974

Inventors:

Gerard P. Canevari - Cranford NJ
Robert J. Fiocco - Summit NJ
Kenneth W. Becker - Houston TX
Richard R. Lessard - Morristown NJ

Assignee:

Exxon Research and Engineering Company - Florham Park NJ

International Classification:

B01F 1710
E02B 1504

US Classification:

252354

Abstract:

An improved dispersant formulation for dispersing oil which contains a mixture of a sorbitan monoester of an aliphatic monocarboxylic acid, a polyoxyethylene adduct of a sorbitan monoester of an aliphatic monocarboxylic acid, a water-dispersible salt of a dialkyl sulfosuccinate, a polyoxyethylene adduct of a sorbitan triester or a sorbitol hexaester of an aliphatic monocarboxylic acid and a glycol ether which has a maximum water solubility of 25 ml/100 ml as solvent.