Delivery systems for active ingredients including sunscreen actives and methods of making same
AssigneeShamrock Technologies, Inc.
InventorsDouglas S. Deblasi, Manshi Sui, Roy Pe
Life of this patent
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Abstract
The present invention provides methods of making delivery systems for active ingredients including hydrogenated jojoba and sunscreen actives. The recrystallization process of the present invention produces small particle size alloys from molten mixtures and recrystallized small particle size dispersions from high temperature solvent solutions. The invention further provides delivery systems for active ingredients such as sunscreen actives.
Claims26
A delivery system for at least one sunscreen active, said delivery system comprising, alloy particulates comprising (i) crystals or droplets of at least one sunscreen active and (ii) crystals of at least one organic wax lubricant.
A delivery system for at least one organic sunscreen active, said delivery system comprising,
- (A) at least one liquid solvent;
- and
- (B) alloy particulates dispersed in said liquid solvent, said particulates comprising,
- (i) crystals or droplets of at least one organic sunscreen active;
- and
- (ii) crystals of at least one organic wax lubricant;
- wherein said at least one lubricant is capable of functioning as a cosolvent to enable said at least one sunscreen active, which is not readily soluble alone, to be dissolved readily in said at least one solvent at an elevated temperature range.
A delivery system for at least one inorganic sunscreen active, said delivery system comprsing,
- (A) at least one liquid solvent;
- (B) alloy particulates dispersed in said liquid solvent, said particulates comprising,
- (i) crystals of at least one organic wax lubricant;
- and
- (ii) crystals of at least one sunscreen active embedded within said crystals of at least one organic wax lubricant.
A delivery system for at least one sunscreen active, said delivery system comprising, composite particulates comprising (i) crystals or droplets of at least one sunscreen active and (ii) crystals of at least one organic wax lubricant.
A delivery system for at least one organic sunscreen active, said delivery system comprising,
- (A) at least one liquid solvent;
- and
- (B) composite particulates dispersed in said liquid solvent, said particulates comprising,
- (i) crystals or droplets of at least one organic sunscreen active;
- and
- (ii) crystals of at least one organic wax lubricant;
- wherein said at least one lubricant is capable of functioning as a cosolvent to enable said at least one sunscreen active, which is not readily soluble alone, to be dissolved readily in said at least one solvent at an elevated temperature range.
A delivery system for at least one inorganic sunscreen active, said delivery system comprising,
- (A) at least one liquid solvent;
- and
- (B) composite particulates dispersed in said liquid solvent, said particulates comprising,
- (i) crystals of at least one organic wax lubricant;
- and
- (ii) crystals of at least one sunscreen active embedded within said crystals of at least one organic wax lubricant.
Dependencies are inferred from the claim text.