Superabsorbent polymers and sunscreen actives for use in skin care compositions

• US 9,549,891 B2
• Filed: 03/15/2013
• Issued: 01/24/2017
• Est. Priority Date: 03/19/2012
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Tanner, Paul Robert, Manohar, Mridula
• Primary Examiner(s): Stevens, Mark V
• Application Number:
  US13/834,406
• Publication Number:
  US 20130243836A1
• Time in Patent Office: 1,411 Days
• US Class Current: 1/1
• CPC Class Codes: A61K 2800/412 Microsized, i.e. having sizes between 0.1 and 100 microns
• CPC Class Codes: A61K 2800/48 Thickener, Thickening system
• CPC Class Codes: A61K 2800/52 Stabilizers
• CPC Class Codes: A61K 2800/546 Swellable particulate polymers
• CPC Class Codes: A61K 2800/594 Mixtures of polymers
• CPC Class Codes: A61K 8/0241 Containing particulates characterized by their shape and/or structure see also A61K8/04, A61K8/11, and A61K8/14, further aspects are classified in A61K2800/40 and subcodes
• CPC Class Codes: A61K 8/0254 Platelets; Flakes
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61K 8/26 Aluminium; Compounds thereof
• CPC Class Codes: A61K 8/345 containing more than one hydroxy group
• CPC Class Codes: A61K 8/35 Ketones, e.g. benzophenone
• CPC Class Codes: A61K 8/37 Esters of carboxylic acids
• CPC Class Codes: A61K 8/675 Vitamin B3 or vitamin B3 active, e.g. nicotinamide, nicotinic acid, nicotinyl aldehyde tocopheryl nicotinate A61K8/678
• CPC Class Codes: A61K 8/8147 Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61K 8/91 Graft copolymers A61K8/89 takes precedence
• CPC Class Codes: A61Q 15/00 Anti-perspirants or body deodorants deodorisation of air A61L9/00
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/02 : for chemically bleaching or whitening the skin
• CPC Class Codes: A61Q 19/08 : Anti-ageing preparations

Abstract

A skin care composition having from about 0.01% to about 5%, by weight, of an superabsorbent polymer which is a sodium polyacrylate, sodium polacrylate starch, sodium acrylates crosspolymer-2 or mixtures of these and a portion of the polymer comprises a grafted starch material. The superabsorbent polymer is particulate where the particles have an average particle size in the range of from about 5μ-30μ, and the individual particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape. The particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume. Additionally, the skin care composition contains from about 0.01-10% of a dry powder that is either starch or silicone based and wherein the dry powder is coated with a silicone based material. Further there is provided a UV active.

Claims

1. A skin care composition comprising:

a. from about 0.01% to about 5%, by weight, of a superabsorbent polymer;

wherein the superabsorbent polymer is selected from the group consisting of sodium polyacrylate, sodium polyacrylate starch, sodium acrylates crosspolymer-2 and mixtures thereof, wherein the superabsorbent polymer is provided as superabsorbent particles;

b. from about 0.01-10% of a dry powder that is comprised of either a starch or a silicone and wherein the dry powder is coated with a silicone material;

c. from about 1% to about 30%, by weight, of a UV active selected from a group consisting of avobenzone, cinoxate, dioxybenzone, homosalate, menthyl anthranilate, octyl salicylate, oxybenzone, padimate O, phenylbenzimidazole sulfonic acid, sulisobenzone, trolamine salicylate, titanium dioxide, zinc oxide, diethanolamine methoxycinnamate, digalloy trioleate, ethyl dihydroxypropyl PABA, glyceryl aminobenzoate, lawsone with dihydroxyacetone, red petrolatum, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis-diethylamino hydroxybenzoyl benzoate, bis-benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, 4-methylbenzylidenecamphor, isopentyl 4-methoxycinnamate and combinations thereof; and

d. from about 20% to about 98% of water.

2. The skin care composition of claim 1 further comprising an oil phase wherein the UV active is mixed with the oil phase to form an oil-in-water or water-in-oil-in-water emulsion.

3. The skin care composition of claim 2, wherein the skin care composition further comprises from about 0.01 to about 10%, by weight, of an emulsifier.

4. The skin care composition of claim 3, wherein the emulsifier is selected from a group consisting of ethers of glycerol, polyglycerol, sucrose, glucose, or sorbitol;

esters of glycerol, polyglycerol, sucrose, glucose, or sorbitol; and

mixtures thereof.

5. The skin care composition of claim 1 further comprising from about 0.1% to about 20%, by weight, of a silicone elastomer.

6. The skin care composition of claim 1, wherein the UV active is selected from a group consisting of avobenzone, homosalate, octyl salicylate, oxybenzone, phenylbenzimidazole sulfonic acid, titanium dioxide, zinc oxide, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis diethylamino hydroxybenzoyl benzoate, bis benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, isopentyl 4-methoxycinnamate and combinations thereof.

7. The skin care composition of claim 2, further comprising a solvent which is selected from a group consisting of di-isopropyl adipate, butyl phthalimide, isopropyl phthalimide, phenylethyl benzoate, dicaprylyl carbonate, isopropyl lauroylsarcosinate, isononyl isononanoate, butyl octylsalicylate, dioctyl malate, dicaprylyl maleate, isopropyl isostearate, propylene glycol dicaprate, esters of C12-C15 alcohol benzoates, isosorbide diesters, and derivatives and mixtures thereof.

8. The skin care composition of claim 1 further comprising a photostabilizer.

9. The skin care composition of claim 8 wherein the photostabilizer is selected from a group consisting of methoxycrylene, diethylhexyl 2,6-naphthalate, diethylhexyl syringylidenemalonate, and combinations thereof.

10. The skin care composition of claim 1 further comprising an active or agent selected from a group consisting of sugar amines, vitamins, oil control agents, humectants, emollients, photosterols, hexamidine compounds, tightening agents, anti-wrinkle actives, anti-atrophy actives, flavonoids, N-acyl amino acid compounds, retinoids, peptides, particulate materials, anti-cellulite agents, desquamation actives, anti-acne actives, anti-oxidants, radical scavengers, conditioning agents, anti-inflammatory agents, tanning actives, skin lightening agents, botanical extracts, antimicrobial actives, antifungal actives, antibacterial actives, antiperspirant actives, sensates, preservatives, anti-dandruff actives, substantivity polymers, detersive surfactants, and combinations thereof.

11. The skin care composition of claim 10 wherein the vitamins are selected from vitamin B3 compound, ascorbic acid, tocopherol acetate, panthenol, dexpanthenol, magnesium ascorbyl phosphate, sodium ascorbyl phosphate, retinyl propionate, and combinations thereof.

12. The skin care composition of claim 1 further comprising an active or agent which is selected from the groups consisting of glucosamine, glucosamine derivatives, salts of dehydroacetic acid, salicylic acid, hexamidine diisethionate, salts of dialkanoyl hydroxyproline, N-acyl phenylalanine, dipeptides, pentapeptides, titanium dioxide, iron oxide, zinc oxide, butylated hydroxytoluene, dihydroxyacetone, and combinations thereof.

13. The skin care composition of claim 2 wherein the oil phase is from about 1% to about 60%, by weight, of the emulsion.

14. The skin care composition of claim 1 wherein one or more of the UV active is encapsulated.

15. The skin care composition of claim 5 wherein the silicone elastomer is a non-emulsifying elastomer.

16. The skin care composition of claim 15 wherein the non-emulsifying elastomer is selected from the group consisting of dimethicone crosspolymers, dimethicone/vinyl dimethicone crosspolymers, copolymers, and their derivatives, C30-45 alkyl cetearyl dimethicone crosspolymer, cetearyl dimethicone crosspolymer, copolymers, and their derivatives, dimethicone/phenyl vinyl dimethicone crosspolymer, vinyl dimethicone/lauryl dimethicone crosspolymer, copolymers, and their derivatives and mixtures thereof.

17. The skin care composition of claim 5 wherein the silicone elastomer is an emulsifying elastomer.

18. The skin care composition of claim 17 wherein the emulsifying elastomer is selected from the group consisting of polyoxyethylene silicone elastomer, polyglycerin-modified silicone elastomers, alkyl-containing polyoxyethylene silicone elastomers, alkyl-containing polyglycerin-modified silicone elastomers, polyoxypropylene silicone elasotmer, and mixtures thereof.