Soluble oil concentrate and emulsifier system used therein
AssigneeConoco Inc.
InventorsAlbert M. Durr, Jr., Bryant J. Hardy
Life of this patent
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Abstract
The combination of a conventional emulsifier package for soluble oils and a synergistic combination of (a) an oxazoline derivative and an amide and (b) an ether sulfate ammonium salt surfactant. The oxazoline drivative and amide contain straight or branched chain alcohol and fatty acid substituents. The ether sulfate ammonium salt surfactant contains a mixture of alkyl groups. The combination is incorporated with a base oil to produce soluble oil concentrate.
Claims10
An emulsifier composition for soluble oil which comprises emulsifiers for soluble base oil in combination with an emulsion-stabilizing amount of (a) a mixture of an oxazoline derivative with straight or branched chain alcohol and fatty acid substituents and an amide with straight or branched chain alcohol and fatty acid substituents and (b) an ether sulfate ammonium salt surfactant containing a mixture of alkyl groups;
- wherein the oxazoline derivative has the formula ##STR4## in which R is a straight or branched chain alcohol substituent having from 1 to about 10 carbon atoms and R.sub.1 is a straight or branched chain fatty acid substituent having from 3 to about 20 carbon atoms;
- the amide has the formula ##STR5## in which R is a straight or branched chain alcohol substituent having from 3 to 20 carbon atoms and R.sub.1 is the same as in the oxazoline;
- and the ether sulfate ammonium salt has the formula:
- ##STR6## where R is a mixture of alkyl groups having 3 to about 20 carbon atoms.
A soluble oil concentrate comprising:
- (a) a base oil,
- (b) emulsifiers, and
- (c) an emulsion-stabilizing amount of (i) a mixture of an oxazoline derivative with straight or branched chain alcohol and fatty acid substituents and an amide with straight or branched chain alcohol and fatty acid substituents and (ii) an ether sulfate ammonium salt surfactant containing a mixture of alkyl groups.
A soluble oil concentrate comprising:
- (a) a paraffin base oil
- (b) an emulsifier mixture comprising an organic sulfonate, fatty and rosin acids, an alkali metal hydroxide, an alkylol amine and an alkylene glycol
- (c) an emulsion-stabilizing amount of (i) a mixture of an oxazoline derivative with straight or branched chain alcohol and fatty acid substituents and an amide with straight or branched chain alcohol and fatty acid substituents and (ii) an ether sulfate ammonium salt surfactant containing alkyl groups of 3 to about 20 carbon atoms wherein each of (i) and (ii) comprise from 0.1 to 4.0 percent by weight of the soluble base oil.
Dependencies are inferred from the claim text.