Intimate care lubricant compositions and methods for making same
AssigneeChemsil Silicones, Inc.
InventorDuane Krzysik
Life of this patent
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Abstract
Silicone-in-water emulsions and methods for making same, are disclosed which are useful and effective as lubricants for use in intimate care applications, as a skin condition, as a surgical lubricant and/or as a carrier for an active topical pharmaceutical agent. In preferred examples, the emulsions of the present invention are flowable, have a viscosity of equal to or below about 15,000 centipoise (cP), and are stable upon storage for at least about 1 year.
Claims21
A low-viscosity, substantially clear or translucent silicone-in-water emulsion composition comprising an amount of water and,
- about 0.1% to about 1% by weight of a rheology modifier,
- about 1% to about 6% by weight of an emulsifier component consisting of one or more non-ionic surfactant component;
- about 15% to about 60% by weight of one or more silicone lubricants present in a water-immiscible silicone phase;
- and
- an amount of one or more water-miscible refractive index (RI) adjusting agent (“RIAA”) sufficient to render the composition substantially clear or translucent;
- the low-viscosity, substantially clear or translucent silicone-in-water emulsion composition having an average diameter of the dispersed phase silicone droplets in the range between about 200 nm and about 500 nm and effective as a lubricant suitable for use in intimate care applications;
- said low-viscosity, substantially clear or translucent silicone-in-water emulsion composition
- (i) having a viscosity of 15,000 cPa or less, and
- (ii) remaining stable for at least 1 year at room temperature.
A low-viscosity, substantially clear or translucent silicone-in-water emulsion composition comprising a water phase and a water-immiscible silicone phase, comprising:
- about 15% to about 60% by weight of one or more silicone lubricants;
- about 1% to about 6% by weight of an emulsifier component comprising at least one non-ionic surfactant;
- about 0.1% to about 0.8% by weight of a rheology modifier component;
- a sufficient quantity of one or more water-soluble refractive index adjusting agent (“RIAA”) other than water to cause the refractive index of the water phase to substantially match the refractive index of the silicone phase of the composition;
- and
- water in a sufficient quantity so that the composition totals 100% by weight, the low-viscosity, substantially clear or translucent silicone-in-water emulsion composition
- (i) having an average diameter of the dispersed phase silicone droplets in the range between about 200 nm and about 500 nm,
- (ii) having a viscosity of 15,000 cPa or less,
- (iii) remaining stable for at least 1 year at room temperature, and
- (iv) being suitable for use as a lubricant in one or more intimate care applications.
Dependencies are inferred from the claim text.