Claims
- 1. A compound represented by formula II: ##STR13## wherein R.sup.1, R.sup.2 and R.sup.3 are low molecular weight alkyl radicals, and
- R.sup.6 is a R.sup.6 is a 2-thienyl radical optionally substituted with low molecular weight alkyl radicals or is is a (3,5-di-t-butyl)-4-alkoxyphenyl radical.
- 2. The compound of claim 1, wherein R.sup.6 is a 2-thienyl radical optionally substituted with low molecular weight alkyl radicals.
- 3. The compound of claim 1, wherein R.sup.6 is a (3,5-di-t-butyl)-4-hydroxyl phenyl radical.
- 4. The compound of claim 1, wherein R.sup.6 is an unsubstituted 2-thienyl radical.
- 5. The compound of claim 1, wherein R.sup.6 is a 2-thienyl radical substituted with low molecular weight alkyl radicals.
- 6. The compound of claim 1, wherein R.sup.1, R.sup.2 and R.sup.3 have 1 to 4 carbon atoms.
- 7. The compound of claim 1, wherein R.sup.1, R.sup.2 and R.sup.3 are each methyl.
- 8. The compound of claim 2, wherein R.sup.1, R.sup.2 and R.sup.3 are each methyl.
- 9. The compound of claim 3, wherein R.sup.1, R.sup.2 and R.sup.3 are each methyl.
- 10. The compound of claim 1, wherein R.sup.6 is a 2-thienyl radical substituted with a methyl radical.
- 11. A cosmetic composition, comprising the compound of claim 1 and a cosmetically acceptable carrier.
- 12. The cosmetic composition of claim 11, wherein the cosmetically acceptable carrier comprises an oil phase.
- 13. The cosmetic composition of claim 11, which is a sunscreen.
- 14. A method of protecting skin from UV radiation, comprising applying an effective amount of the compound of claim 1 to the skin.
- 15. A method of protecting skin from UV radiation, comprising applying an effective amount of the composition of claim 11 to the skin.
Priority Claims (1)
Number |
Date |
Country |
Kind |
196 34 229 |
Aug 1996 |
DEX |
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Parent Case Info
This application is a division of 08/916,361, filed Aug. 22, 1997, allowed.
US Referenced Citations (7)
Foreign Referenced Citations (4)
Number |
Date |
Country |
1 251 590 |
Dec 1960 |
FRX |
2 118 798 |
Nov 1971 |
DEX |
948627 |
Feb 1964 |
GBX |
1 309 349 |
Mar 1973 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Popandova-Yambolieva et al, "Reaction of pivaloylacetonitrile with aromatic aldehydes", CA 119:180490, 1993. |
Divisions (1)
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Number |
Date |
Country |
Parent |
916361 |
Aug 1997 |
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