US5152983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunscreen compositions comprising pongomol
Assignee: Givaudan Nederland Services BV
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Filing: 1990-11-09
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Granted: 1992-10-06
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Expires: 2010-11-09
Abstract
Abstract A sunscreen composition suitable for topical application to human skin or hair, to provide protection from excessive exposure to ultra-violet rays, comprises: i) an effective amount of a substituted 1,3-diketone having an ultra-violet absorption band within the range of from 250 to 500 nm, and an extinction coefficient E of from 5,000 to 70,000; and ii) a physiologically acceptable vehicle for the substituted 1,3-diketone.
Inventors
- 👤 Mayara E. N. Nambudiry
- 👤 Visweswaria N. Collur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:42
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/49; A61K8/4973; A61K8/96; A61K8/97; A61K8/9783; A61K8/9789; A61K8/9794; A61Q; A61Q17/00; A61Q17/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
48 words
A sunscreen composition suitable for topical application to human skin or hair to provide protection from excessive exposure to ultra-violet rays, which comprises: (i) an effective amount of a substituted 1,3-diketone which is 1,3-propanedione, 1-(4-methoxy-5-benzofuranyl)-3-phenyl having the structure: ##STR8## (ii) a physiologically acceptable vehicle for the substituted 1,3-diketone.
Claim 2
Dependent Claim
48 words
A sunscreen composition suitable for topical application to human skin or hair to provide protection from excessive exposure to ultra-violet rays, which comprises: (i) an effective amount of a substituted 1,3-diketone which is 1,3-propanedione, 1-(4-methoxy-5-benzofuranyl)-3-phenyl having the structure: ##STR8## (ii) a physiologically acceptable vehicle for the substituted 1,3-diketone.
Claim 3
Dependent Claim
20 words
A composition according to claims 1, in which the 1,3-diketone forms from 0.01 to 15% by weight of the composition.
Claim 4
Dependent Claim
16 words
A composition according to claim 1, which is in the form of a cream or lotion.
References Cited (Backward Citations)
US3275520A
Cited
US3448190A
Cited
FR2285853A1
Cited
GB1473483A
Cited
US4489057A
Cited
EP0020274A1
Cited
GB2073018A
Cited
US4814162A
Cited
US4426380A
Cited
US4656029A
Cited
EP0238302A1
Cited
US4988501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |