Enhanced oil delivery from structured surfactant formulations
OwnerPeter Hilliard, Nadia Soliman +1inventors
InventorsPeter Hilliard, Nadia Soliman, Peter Haugk
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Abstract
Novel spherulite-containing compositions are described. Methods for making spherulite-containing compositions are also described. Preferred embodiments include compositions comprising a surfactant component, a salt, and an oil phase, wherein the surfactant component comprises (a) about 6 to about 10 weight % sodium trideceth sulfate; (b) about 1.8 to about 3.0 weight % of a structuring agent; (c) about 1.1 to about 3.0 weight % of a foam booster; (d) water; and (e) about 0.2 to about 0.8 weight % of a cationic guar gum.
Claims15
A composition comprising a surfactant component, a salt, and an oil phase, wherein the surfactant component comprises (based on the total weight of the composition):
- (a) about 6 to about 10 weight % sodium trideceth sulfate;
- (b) about 1.8 to about 3.0 weight % of a structuring agent;
- (c) about 1.1 to about 3.0 weight % of a foam booster;
- (d) water;
- and
- (e) about 0.2 to about 0.8 weight % of a cationic guar gum.
A composition made by combining a surfactant component, salt and an oil phase wherein:
- (I) the surfactant component comprises (based on the total weight of the composition):
- (a) about 6 to about 10 weight % sodium trideceth sulfate;
- (b) about 1.8 to about 3.0 weight % of a structuring agent;
- (c) about 1. 1 to about 3.0 weight % of foam booster;
- (d) water;
- and
- (e) about 0.2 to about 0.8 weight % of a cationic guar gum;
- (II) the salt component is NaCl;
- (III) an oil phase comprises one or more oils selected from the group consisting of vegetable oils, mineral oils, and silicone oils;
- wherein the total oil content comprises up to about 15 weight % of the total composition;
- and
- wherein the composition is made using sequential steps comprising:
- (a1) premixing the cationic guar gum in water to hydrate and disperse said gum;
- (b1) adding the surfactant component to the (a1) component;
- (c1) adjusting the pH of the (b1) component to be in a range of 5.5±1;
- (d1) adding about 1 to about 3 weight % of the salt to the (c1) component while maintaining the salt level at or below about 6 weight %;
- (e1) applying shear to component (d1) to form the composition at a shear rate not exceeding about 20 sec−1;
- (f1) adding the oil phase to the (e1) component with mixing;
- wherein the total water content of the composition is in the range of about 55 to about 80 weight %;
- and
- wherein steps (c1) and (d1) can be reversed.
A method of making a spherulite-containing composition comprising:
- (a1) premixing a cationic guar gum in water to hydrate and disperse the gum;
- (b1) adding a surfactant component to the (a1) component;
- (c1) adjusting the pH of the (b1) component to about 5.5±1;
- (d1) adding about 1 to about 3 weight % of salt to the (c1) component while maintaining the salt level at or below about 6 weight %;
- (e1) applying shear to component (d1) to form the composition at a shear rate not exceeding about 20 sec−1;
- and
- (f1) adding an oil phase to the (e1) component with mixing.
Dependencies are inferred from the claim text.