US4810490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunscreen composition
Assignee: Chesebrough Ponds Inc
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Filing: 1987-06-04
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Granted: 1989-03-07
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Expires: 2007-06-04
Abstract
Abstract Clear, water-proof sunscreen compositions, including a film-forming resin, a solvent, an ultra-violet sunscreening agent and emollients are disclosed. The compositions when spread on the skin leave an elegant non-greasy, non-tacky film with a superior resistance to removal by water and which provide prolonged high level protection for human skin to ultraviolet radiation.
Inventors
- 👤 Richard P. Dixon
- 👤 Mary E. Foxx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:46
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/92; A61K8/922; A61Q; A61Q17/00; A61Q17/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
A clear sunscreen composition consisting essentially of from about 0.1% to about 10.0% by weight of the methyl ester of hydrogenated wood rosin, from about 10.0% to about 90.0% by weight of an organic solvent for said methyl ester selected from the group consisting of aliphatic hydrocarbons, ethers, esters, ketones, mineral oil and ethanol, from about 5.0% to about 60.0% by weight of an emollient material selected from the group consisting of hydrocarbon waxes, hydrocarbon oils, fatty acid esters of low molecular weight alcohols and volatile silicone fluids and from about 1.0% to about 20.0% by weight of an ultraviolet absorbing sunscreen selected from the group consisting of octyl-dimethyl-p-aminobenzoate, pentyl and 2-ethylhexyl esters of 4-(dimethylamino) benzoic acid, dioxybenzone, ethylhexyl-p-methoxy-cinnamate, ethyl-4-bis (hydroxypropyl) aminobenzoate, 3,3,5-trimethylcyclohexyl salicylate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl salicylate and mixtures thereof.
Claim 2
Dependent Claim
131 words
A clear sunscreen composition consisting essentially of from about 0.1% to about 10.0% by weight of the methyl ester of hydrogenated wood rosin, from about 10.0% to about 90.0% by weight of an organic solvent for said methyl ester selected from the group consisting of aliphatic hydrocarbons, ethers, esters, ketones, mineral oil and ethanol, from about 5.0% to about 60.0% by weight of an emollient material selected from the group consisting of hydrocarbon waxes, hydrocarbon oils, fatty acid esters of low molecular weight alcohols and volatile silicone fluids and from about 1.0% to about 20.0% by weight of an ultraviolet absorbing sunscreen selected from the group consisting of octyl-dimethyl-p-aminobenzoate, pentyl and 2-ethylhexyl esters of 4-(dimethylamino) benzoic acid, dioxybenzone, ethylhexyl-p-methoxy-cinnamate, ethyl-4-bis (hydroxypropyl) aminobenzoate, 3,3,5-trimethylcyclohexyl salicylate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl salicylate and mixtures thereof.
Claim 3
Dependent Claim
11 words
The sunscreen composition of claim 1 wherein said solvent is ethanol.
Claim 4
Dependent Claim
18 words
The sunscreen composition of claim 1 wherein said ultraviolet sunscreening agent is a mixture of octyl-dimethyl-p-aminobenzoate and dioxybenzone.
Claim 5
Dependent Claim
13 words
The sunscreen composition of claim 1 wherein said emollient is a volatile silicone.
Claim 6
Dependent Claim
11 words
The sunscreen composition of claim 4 wherein said emollient is cyclomethicone.
Claim 7
Dependent Claim
13 words
The sunscreen composition of claim 4 wherein said composition additionally includes a plasticizer.
Claim 8
Dependent Claim
13 words
The sunscreen composition of claim 6 wherein said plasticizer is a silicone resin.
References Cited (Backward Citations)
US2260173A
Cited
US3014957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |