US 9,801,806 B2 · Compositions for application to the skin for reducing adhesion of pollution particles on skin and methods of preparing same

Abstract

Provided in various embodiments are compositions for topical application to the skin of a mammal, methods for their preparation, and their uses in skin care compositions to reduce adhesion of unwanted particles to the skin. When a hydrophobic non-volatile solvent and a hydrophobic non-volatile high melting point material with a melting point in the range of 60° C. and 100° C. are combined with a hydrophobic volatile solvent which compatibilizes the hydrophobic non-volatile solvent and the hydrophobic non-volatile high melting point material and the hydrophobic non-volatile high melting point material is selected to be at least partially incompatible with the hydrophobic non-volatile solvent in the absence of the hydrophobic volatile solvent, the resulting composition may be applied to skin to reduce adhesion of unwanted particles to the skin.

Claims18

Dependent claims

A composition for topical application to the skin of a mammal comprising:

(a) a hydrophobic non-volatile solvent;
(b) a hydrophobic non-volatile high melting point material, wherein the hydrophobic non-volatile high melting point material has a melting point in the range of 60° C. and 100° C., wherein the hydrophobic non-volatile high melting point material comprises an acrylic copolymer with dendrimeric silicone groups comprising an acrylates/polytrimethylsiloxymethacrylate copolymer;
and
(c) a hydrophobic volatile solvent comprising isododecane, wherein the hydrophobic volatile solvent compatibilizes the hydrophobic non-volatile solvent and the hydrophobic non-volatile high melting point material;
and
wherein the hydrophobic non-volatile high melting point material is selected to be at least partially incompatible with the hydrophobic non-volatile solvent in the absence of the hydrophobic volatile solvent,
where the acrylates/polytrimethylsiloxymethacrylate copolymer and isododecane are present in an amount of at least 5 weight % of the composition.

4 more elements

A method for forming a protective film on the skin of a mammal, comprising topically administering to the skin a composition comprising:

(a) a hydrophobic non-volatile solvent;
(b) a hydrophobic non-volatile high melting point material, wherein the hydrophobic non-volatile high melting point material has a melting point in the range of 60° C. and 100° C., wherein the hydrophobic non-volatile high melting point material comprises an acrylic copolymer with dendrimeric silicone groups comprising an acrylates/polytrimethylsiloxymethacrylate copolymer;
and
(c) a hydrophobic volatile solvent comprising isododecane, wherein the hydrophobic volatile solvent compatibilizes the hydrophobic non-volatile solvent and the hydrophobic non-volatile high melting point material;
and
wherein the non-volatile high melting point material is selected to be at least partially incompatible with the hydrophobic non-volatile solvent and the one or more emulsifying systems in the absence of the hydrophobic volatile solvent;
and
where the acrylates/polytrimethylsiloxymethacrylate copolymer and isododecane are present in an amount of at least 5 weight % of the composition, and wherein the composition creates a protective film on the skin that minimizes adhesion of unwanted particles.

5 more elements

Dependencies are inferred from the claim text.

Compositions for application to the skin for reducing adhesion of pollution particles on skin and methods of preparing same

Life of this patent

Compositions for application to the skin for reducing adhesion of pollution particles on skin and methods of preparing same

Life of this patent

Abstract

Claims18