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US 5,684,096 AGranted
Adducts of polyalkylene glycol and diglycidyl ether
AssigneeNalco/Exxon Energy Chemicals, L.P.
InventorsGrahame N. Taylor, Richard Mgla
Life of this patent
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Abstract
Water-in-oil emulsions are broken by the use of adducts prepared by reacting high molecular weight polyalkylene glycol with ethylene oxide, or diglycidyl ether, or both ethylene oxide and diglycidyl ether. The adduct demulsifiers may be used alone or as a blend with other demulsifiers.
Claims5
An agent for demulsifying water-in-oil emulsions comprising an adduct of:
- (a) a polyalkylene glycol having a molecular weight of greater than 8,000 and up to 18,000 and wherein the alkylene group is from 3 to 4 carbon atoms, and
- (b) diglycidyl ether;
- said adduct having the following formula:
- ##STR8## where R is CH.sub.3 or C.sub.2 H.sub.5, n is an integer having a value range defined by the molecular weight of (a),
- X is selected from the group consisting of bis-phenol A;
- (CH.sub.2).sub.p ;
- and ##STR9## where p is an integer ranging from 1 to 10;
- s is an integer ranging from 1 to 100.
5 more elements
Dependencies are inferred from the claim text.