US5017365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunscreen composition and applicator system
Assignee: SOLARCARE INCORPORATED N/K/A SOLARCARE TECHNOLOGIES Corp A PA CORP
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Filing: 1990-10-03
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Granted: 1991-05-21
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Expires: 2010-10-03
Abstract
Abstract Sunscreen compositions are made capable of rapid, uniform and stable diffusion in emulsified form in fibrous sheet applicator and of drying on the skin to non-tacky, non-greasy films, by emulsifying (1) about 1-25 wt. % of a substantially water-insoluble UV absorbing component capable of absorbing in at least the 290-320 nm range, (2) about 5-20 wt. % of a cosmetically acceptable alcohol, (3) about 1-10 wt. % of a nonionic emulsifier component, (4) about 0.01-0.5 wt. % of a hydrophilic acrylic acid polymer having a molecular weight of at least about 4.5×10 5 , (5) an effective amount of an alkaline neutralizer for the acrylic acid polymer, (6) about 2.5-20 wt. % of an emollient component and (7) at least about 50 wt. % water. Fibrous sheets impregnated with the compositions can be packaged in vapor-and moisture impermeable containers for stable storage and convenient use.
Inventors
- 👤 Raymond S. Niedbala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:37
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0208; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/40; A61K8/45; A61K8/72; A61K8/81; A61K8/8141; A61K8/8147; A61Q; A61Q17/00; A61Q17/04; Y; Y10; Y10S; Y10S206/00; Y10S206/812
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
A sunscreen package comprising a fibrous sheet impregnated with a sunprotective, aqueous based emulsion, said impregnated sheet incorporated in a vapor and moisture impermeable container, said aqueous based emulsion having a specific gravity of 0.90-1.05 and comprising: (1) about 1-25 wt. % of a substantially water insoluble UV absorbing component capable of absorbing in at least the 290-320 nm range; (2) about 5-20 wt. % of a cosmetically acceptable alcohol; (3) about 1-10 wt. % of a nonionic emulsifier component; (4) about 0.01-0.5 wt. % of a hydrophilic acrylic acid polymer having a molecular weight of at least about 4.5×10 5 ; (5) an effective amount of an alkaline neutralizer for the acrylic acid polymer; (6) about 2.5-20 wt. % of an emollient component; and (7) at least about 50 wt. % water.
Claim 2
Dependent Claim
133 words
A sunscreen package comprising a fibrous sheet impregnated with a sunprotective, aqueous based emulsion, said impregnated sheet incorporated in a vapor and moisture impermeable container, said aqueous based emulsion having a specific gravity of 0.90-1.05 and comprising: (1) about 1-25 wt. % of a substantially water insoluble UV absorbing component capable of absorbing in at least the 290-320 nm range; (2) about 5-20 wt. % of a cosmetically acceptable alcohol; (3) about 1-10 wt. % of a nonionic emulsifier component; (4) about 0.01-0.5 wt. % of a hydrophilic acrylic acid polymer having a molecular weight of at least about 4.5×10 5 ; (5) an effective amount of an alkaline neutralizer for the acrylic acid polymer; (6) about 2.5-20 wt. % of an emollient component; and (7) at least about 50 wt. % water.
Claim 3
Dependent Claim
12 words
The package of claim 1 wherein the cosmetically acceptable alcohol is ethanol.
Claim 4
Dependent Claim
28 words
The package of claim 1 wherein the UV-absorbing component (1) of the emulsion is selected from at least one of ethylhexyl p-methoxycinnamate, octyl dimethyl p-aminobenzoic acid and oxybenzone.
Claim 5
Dependent Claim
18 words
The package of claim 1 wherein the nonionic emulsifier (3) of the emulsion is a fatty alcohol ethoxylate.
Claim 6
Dependent Claim
16 words
The package of claim 1 wherein the neutralizer (5) of the emulsion is a polyoxyethylene cocoamine.
Claim 7
Dependent Claim
37 words
The package of claim 1 wherein the nonionic emulsifier (3) of the emulsion comprises about 1-5 wt. %, the acrylic acid polymer (4) comprises about 0.015-0.1 wt. % and the emollient (6) comprises about 5-15 wt. %.
Claim 8
Dependent Claim
24 words
The package of claim 1 wherein the nonionic emulsifier (3) is a polyoxyethylene stearyl ether, and the alkaline neutralizer (6) is a polyoxyethylene cocoamine.
Claim 9
Dependent Claim
80 words
The package of claim 1 wherein the UV absorbing component (1) is selected from at least one of ethylhexyl p methoxycinnamate, octyl dimethyl p-aminobenzoic acid and oxybenzone, the nonionic emulsifier (3) is a fatty alcohol ethoxylate, the molecular weight of the acrylic acid polymer is about 4.5×10 5 to 5×10 6 , the neutralizer (5) is a polyoxyethylene cocoamine, and the emollient (6) is selected from at least one of a fatty alcohol, a fatty acid glyceride and a polysiloxane.
Claim 10
Dependent Claim
29 words
The package of claim 8 wherein the fatty alcohol (6) is cetyl alcohol or isostearyl alcohol, the fatty acid glyceride is glyceryl stearate and the polysiloxane is methylphenyl polysiloxane.
References Cited (Backward Citations)
US3185628A
Cited
US3103682A
Cited
US3821363A
Cited
US3499575A
Cited
US3978204A
Cited
US3912667A
Cited
US4069309A
Cited
US3965518A
Cited
US4254102A
Cited
US4344930A
Cited
US4299005A
Cited
US4396028A
Cited
US4454889A
Cited
US4559225A
Cited
US4683134A
Cited
US4759652A
Cited
US4925029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |