Alkanolamide surfactant emulsions and process therefor
AssigneeMcIntyre Group, Ltd.
InventorsJohn Gray, Eugene D'Aversa
Life of this patent
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Abstract
Phase stable, pumpable, liquid, high solids, aqueous monoalkanolamide surfactant emulsions are disclosed for use as cold mixable monoalkanolamide delivery systems for separately prepared aqueous formulations containing at least one principal surfactant. The monoalkanolamide surfactant emulsions comprise at least one monoalkanolamide characterized in its unemulsified form by having an amide content of at least about 85% and by being substantially solid and water insoluble at a temperature below about 30° C., and at least one monoalkanolamide emulsifying surfactant and, surprisingly, remain homogeneous, pourable, and pumpable at a total solids content of at least 20 weight percent at a temperature in the range of about zero ° C. to about 30° C.
Claims29
A liquid monoalkanolamide surfactant emulsion useful as an aqueous monoalkanolamide delivery system in a cold mixing process, the liquid monoalkanolamide surfactant emulsion consisting of:
- (a) a monoalkanolamide, which in unemulsified form is substantially solid and water insoluble at a temperature below about 30° C.;
- (b) a monoalkanolamide emulsifying effective amount of an amphoteric emulsifying surfactant;
- and on a total monoalkanolamide surfactant emulsion basis,
- (c) a water soluble inorganic electrolyte salt present in an amount of not more than about 10 weight percent;
- (d) a non-surfactant organic solvent present in an amount of not more than about 15 weight percent;
- (e) an optional fragrance;
- and
- (f) the balance being a sufficient amount of water to obtain a total solids content in the range of about 20 to about 60 weight percent;
- wherein the liquid monoalkanolamide surfactant emulsion is cold mixable into a separately prepared liquid aqueous formulation containing at least one principal surfactant to form a finished product, and is phase stable and pumpable at a temperature in the range of about zero to about 30° C.
A liquid monoethanolamide surfactant emulsion useful as an aqueous monoethanolamide delivery system in a cold mixing process, the liquid monoethanolamide surfactant emulsion consisting of:
- (a) about 6 to about 25% by weight of a monoethanolamide on a total monoethanolamide surfactant emulsion weight basis, wherein the monethanolamide, in unemulsified form is substantially solid and water insoluble at a temperature below about 30° C.;
- (b) about 5 to about 30% by weight of monoalkanolamide emulsifying effective amount of a zwitterionic emulsifying surfactant;
- and on a total monoethanolamide surfactant emulsion weight basis,
- (c) a water soluble inorganic electrolyte salt present in an amount of not more than about 10 weight percent;
- (d) a non-surfactant organic solvent present in an amount of not more than about 15 weight percent;
- (e) an optional fragrance;
- and
- (f) the balance being a sufficient amount of water to obtain a total solids content in the range of about 20 to about 60 weight percent;
- wherein the liquid monoethanolamide surfactant emulsion is cold mixable into a separately prepared liquid aqueous formulation containing at least one principal surfactant to form a finished product, and is phase stable and pumpable at a temperature in the range of about zero to about 30° C.
A liquid monoethanolamide surfactant emulsion useful as an aqueous monoethanolamide delivery system in a cold mixing process, the liquid monoethanolamide surfactant emulsion consisting of:
- (a) about 6 to about 25% by weight of a monoethanolamide on a total monoethanolamide surfactant emulsion weight basis, wherein the monethanolamide, in unemulsified form is substantially solid and water insoluble at a temperature below about 30° C.;
- (b) about 5 to about 30% by weight of a monoalkanolaniide emulsifying effective amount of an amphoteric emulsifying surfactant;
- and on a total monoethanolamide surfactant emulsion weight basis,
- (c) a water soluble inorganic electrolyte salt present in an amount of not more than about 10 weight percent;
- (d) a non-suifactant organic solvent present in an amount of not more than about 15 weight percent;
- (e) an optional fragrance;
- and
- (f) the balance being a sufficient amount of water to obtain a total solids content in the range of about 20 to about 60 weight percent;
- wherein the liquid monoethanolamide surfactant emulsion is cold mixable into a separately prepared liquid aqueous formulation containing at least one principal surfactant to form a finished product, and is phase stable and pumpable at a temperature in the range of about zero to about 30° C.
Dependencies are inferred from the claim text.