# US 11,304,887 B2 · Synergistic photoprotective compositions

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- Number: US 11,304,887 B2
- Document ID: US11304887B2
- Status: Granted
- Kind: B2
- Application number: 16/844,527
- Filed: 2020-04-09
- Published: 2020-07-23
- Granted: 2022-04-19
- Earliest claimed: 2013-04-01
- Assignees: Edgewell Personal Care Brands, LLC
- Applicants: Edgewell Personal Care Brands, LLC
- Inventors: Laura Spaulding; James SaNogueira; Geng Li
- Web page: https://patentgrep.com/patent/US11304887B2

## CPC

- A61K 8/585: {Organosilicon compounds}
- A61K 8/26: Aluminium; Compounds thereof
- A61K 8/28: Zirconium; Compounds thereof
- A61K 8/29: Titanium; Compounds thereof
- A61K 8/35: Ketones, e.g. benzophenone
- A61K 8/40: containing nitrogen (quinones containing nitrogen A61K8/355)
- A61K 8/85: Polyesters
- A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K 8/894: modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
- A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
- A61K 2800/594: Mixtures of polymers
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

A photoprotective composition can be utilized for a variety of cosmetic compositions. A photoprotective composition comprises one or more photoactive agents, and a synergistic combination of polymers. The photoprotective composition can provide a substantially a complete film. The photoprotective composition may comprise an alkyl dimethicone, a polymer with ester linkages, and a phenyl silicone or stearate. The photoprotective composition can further comprise abietic acid and ester derivatives. The photoprotective composition can be a liquid such that it is easily and consistently dispensed from a bottle, pump or spray.

## Claims

### Claim 1

A photoprotective composition, comprising:
at least one photoactive agent present in an amount of about 0.1 to about 40 wt. %, based on a total weight of the photoprotective composition;
a combination of polymers comprising:
an alkyl-dimethicone comprising an alkyl-dimethicone having a hydrophilic group, an alkyl-PPG dimethicone, an alkyl-PEG dimethicone, or combinations thereof, present in an amount greater than zero and less than or equal to 5 wt. %, based on a total weight of the photoprotective composition;
a polymer with ester linkages present in an amount greater than zero and less than or equal to 5 wt. %, based on a total weight of the photoprotective composition, comprising polyglyceryl stearate/isostearate dilinoleate crosspolymer in semi-solid form, polyglyceryl stearate/isostearate dilinoleate crosspolymer in liquid form, polyglyceryl stearate/isostearate dilinoleate crosspolymer in solid form, or combinations thereof; and
phenylisopropyl dimethicone present in an amount greater than zero and less than or equal to 5 wt. %, based on a total weight of the photoprotective composition; and
an abietic acid ester present in an amount greater than zero and less than or equal to 5 wt. %, based on a total weight of the photoprotective composition,
wherein said photoprotective composition is an anyhydrous, single phase, homogenous composition.

### Claim 2 (depends on 1)

The photoprotective composition of claim 1, wherein said at least one photoactive agent is selected from the group consisting of p-aminobenzoic acid and derivatives thereof, butyl methoxydibenzoylmethane, benzophenones, hydroxy-substituted benzophenones, methoxy-substituted benzophenones, benzophonone-1, benzophenone-2, benzophenone-3, benzophenone-4, benzophenone-6, benzophenone-8, benzophenone-12, methoxycinnamate, ethyl dihdroxypropyl-p-aminobenzoate, glyceryl-p-aminobenzoate, homosalate, methyl anthranilate, octocrylene, octyl dimethyl-p-aminobenzoate, octyl methoxycinnamate, octyl salicylate, 2 phenylbenzimidazole-5-sulphonic acid, triethanolamine salicylate, 3-(4-methylbenzylidene)-camphor, red petrolatum,3-(4-methylbenzyldine)boran-2-one(methylbenzindinecamphor), benzotriazole, salicylates, phenylbenzimidazole-5-sulfonic acid, methylene bis-benzotriazolyl tetramethylbutyl phenol, 4-isopropyldibenzoymethane, butylmethoxydibenzoylmethane, octocrylene, octisalate, oxybenzone, bis-ethylhexyloxyphenol methoxy triazine, 4-isopropyl-dibenzoylmethane, metal oxides, zinc oxide, octyltriethoxy silanol, titanium dioxide, alumina, triethoxysilane, or combinations thereof.

### Claim 3 (depends on 1)

The photoprotective composition of claim 1, wherein said alkyl dimethicone comprises lauryl PEG-8 dimethicone.

### Claim 4 (depends on 1)

The photoprotective composition of claim 1, wherein said at least one photoactive agent comprises: homosalate in amount greater than zero and less than or equal to 15 wt. %, octisalate in an amount greater than zero and less than or equal to 5 wt. %, octocrylene in an amount greater than zero and less than or equal to 10 wt. %, avobenzone in an amount greater than zero and less than or equal to 5 wt. %, oxybenzone in an amount greater than zero and less than or equal to 0.5 wt. %, and bis-ethylhexyloxyphenol methoxyphenyl triazine in an amount greater than zero and less than or equal to 2.0 wt. %, based on a total weight of the photoprotective composition.

### Claim 5 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition further comprises an abietic acid or ester derivative comprising hydrogenated methyl abietate, hydrogenated glyceryl abietate, or combinations thereof.

### Claim 6 (depends on 1)

The photoprotective composition of claim 1, wherein said alkyl dimethicone is present in an amount greater than zero and less than or equal to 1.5 wt. %, based on a total weight of the photoprotective composition.

### Claim 7 (depends on 1)

The photoprotective composition of claim 1, wherein said polymer with ester linkages is present in an amount greater than zero and less than or equal to 1.5 wt. %, based on the total weight of a photoprotective composition.

### Claim 8 (depends on 1)

The photoprotective composition of claim 1, wherein said phenylisopropyl dimethicone is present in an amount greater than zero and less than or equal to 1.5 wt. %, based on a total weight of the photoprotective composition.

### Claim 9 (depends on 1)

The photoprotective composition of claim 1, wherein said abietic acid ester is present in an amount greater than zero and less than or equal to 1.5 wt. %, based on a total weight of the photoprotective composition.

### Claim 10 (depends on 1)

The photoprotective composition of claim 1, further comprising one or more components selected from the group consisting of solvent, emulsifier, silicone, thickening agent, emollient, SPF booster, moisturizer, humectant, film former/waterproofing agent, bio-active, pH adjuster/chelating agent, preservative, fragrance, effect pigment, color additive, lubricant, elastomer, antioxidant, vitamin, or combinations thereof.

### Claim 11 (depends on 10)

The photoprotective composition of claim 10, wherein said an emulsifier is selected from the group consisting of lauryl PEG-8 dimethicone, cetyl PEG/PPG-10/1 dimethicone, sodium lauroyl sarcosinate, or combinations thereof.

### Claim 12 (depends on 1)

The photoprotective composition of claim 1, further comprising at least one propellant, wherein said at least one propellant is selected from the group consisting of: isobutene, propane, dimethyl ether, tetrafluoroethane, 1,1-difluoroethane, and combinations thereof.

### Claim 13 (depends on 12)

The photoprotective composition of claim 12, wherein said photoprotective composition comprises a concentrate and said at least one propellant, wherein the ratio of said photoprotective composition and said propellant is between about 2.5:1 and about 1.25:1.

### Claim 14 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition provides a critical wavelength of greater than or equal to 370 nm.

### Claim 15 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition provides a critical wavelength of greater than or equal to 390 nm.

### Claim 16 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition provides a 1/3 UVAPF/SPF ratio.

### Claim 17 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition sustains a Sun Protection Factor of 15, 30, 50, or 50+ for a period of 40 minutes and/or 80 minutes.

### Claim 18 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition sustains a Sun Protection Factor of 15, 30, 50, or 50+ for a period of 40 minutes, 80 minutes, and/or four (4) hours.

### Claim 19 (depends on 1)

The photoprotective composition of claim 1, wherein said photoprotective composition is substantially free of preservatives, is substantially free of surfactants, is substantially free of alcohol, is substantially free of emulsifiers, is a skin-protectant, or combinations thereof.

### Claim 20

A photoprotective composition, comprising:
at least one photoactive agent present in an amount of about 0.1 wt. % to about 40 wt. %, based on a total weight of the photoprotective composition;
a combination of polymers comprising:
lauryl PEG-8 dimethicone present in an amount greater than zero and less than or equal to about 1.5 wt. %, based on a total weight of the photoprotective composition;
polyglyceryl-3 stearate/isostearate dilinoleate crosspolymer present in an amount greater than zero and less than or equal to about 1.5 wt. %, based on a total weight of the photoprotective composition; and
phenylisopropyl dimethicone present in an amount greater than zero and less than or equal to about 1.5 wt. %, based on a total weight of the photoprotective composition; and
hydrogenated methyl abietate or hydrogenated glyceryl abietate present in an amount greater than zero and less than or equal to 5 wt. %, based on a total weight of the photoprotective composition,
wherein said photoprotective composition is an anhydrous, single phase, homogenous composition.

### Claim 21 (depends on 20)

The photoprotective composition of claim 20, wherein the at least one photoactive agent comprises homosalate, octisalate, octocrylene, avobenzone, or combinations thereof.
