Dry emollient compositions
First Claim
1. A dry composition comprising solid particles of jojoba esters and fatty alcohols carrying an active ingredient selected from the group consisting of fragrances, vitamins, medicaments, botanical exracts, ultraviolet radiation absorbers, cosmeceuticals, glitter, high loads of pigment for color delivery to skin, spices, spice extracts, herbs, and herb extracts, wherein said jojoba esters and fatty alcohols comprise at least 10% by weight of said particles and further comprise:
- a. a partially saturated jojoba wax ester selected from the group consisting of at least one of the general formulae R1—
COO—
CH2—
R2 or R2—
COO—
CH2—
R1, b. an alkyl ester selected from the group consisting of at least one of the general formulae R1—
COO—
R4 or R2—
COO—
R4 and c. a fatty alcohol selected from the group consisting of at least one of the general formulae R1—
CH2—
OH or R2CH2—
OH, d. or various combinations thereof, wherein R4 comprises CnH2n+1;
n=1 to 12 R1 comprises CH3—
(CH2)7—
CH═
CH—
CH2(CH2)x—
, and R2 comprises CH3—
(CH2)y—
wherein x is 6, 8, 10 and/or 12, and y is 16, 18, 20 and/or 22.
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Accused Products
Abstract
The present invention are dry-feel emollient compositions comprising jojoba oil based esters that have use in personal care, cosmetic, cosmaceutical and pharmaceutical products. These compositions are essentially solid at room temperature, can be provided in various shapes and sizes (especially as particulates such as spheres), and can be produced from combinations of fatty alcohols, isopropyl esters and wax esters obtained from the oil contained in the seed of the jojoba plant. These new compositions also increase the range of applications for cosmetic compositions through an emollient that is more polar and hydrophilic than is found in jojoba oils. The compositions of the present invention may be obtained by a novel process of a base catalyzed alcoholysis reaction between jojoba oil and an alcohol, such as isopropyl alcohol. These components, whether exclusively jojoba esters or when combined with other carrier and vehicle components (including other emollients or binders) can form excellent carrier composition for use in the cosmetic, personal care and/or pharmaceutical field. Typical materials with which the compositions of the present invention may be blended include, but are not limited to, cosmetic oils and waxes, both natural and synthetic, (including hydrogenated or partially hydrogenated oils), silicone oils, mineral oils, long chain esters, vitamins, long chain fatty acids, cosmeceuticals, pigments, botanical extracts, esters and ethers, dimers, trimers, oligomers, and polymers, and the like. The proportions of the jojoba esters should be chosen to provide the dry-feel to the composition, which is highly desired. This will usually require a weight percent that ranges from 10% to 100% by weight of carrier material in the composition.
20 Citations
14 Claims
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1. A dry composition comprising solid particles of jojoba esters and fatty alcohols carrying an active ingredient selected from the group consisting of fragrances, vitamins, medicaments, botanical exracts, ultraviolet radiation absorbers, cosmeceuticals, glitter, high loads of pigment for color delivery to skin, spices, spice extracts, herbs, and herb extracts, wherein said jojoba esters and fatty alcohols comprise at least 10% by weight of said particles and further comprise:
-
a. a partially saturated jojoba wax ester selected from the group consisting of at least one of the general formulae R1—
COO—
CH2—
R2 or R2—
COO—
CH2—
R1,b. an alkyl ester selected from the group consisting of at least one of the general formulae R1—
COO—
R4 or R2—
COO—
R4 andc. a fatty alcohol selected from the group consisting of at least one of the general formulae R1—
CH2—
OH or R2CH2—
OH,d. or various combinations thereof, wherein R4 comprises CnH2n+1;
n=1 to 12R1 comprises CH3—
(CH2)7—
CH═
CH—
CH2(CH2)x—
, andR2 comprises CH3—
(CH2)y—wherein x is 6, 8, 10 and/or 12, and y is 16, 18, 20 and/or 22. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification