C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
167/314, 260/477
C07C 69/736 (2006.01) A61Q 17/04 (2006.01) C07C 45/45 (2006.01) C07C 49/83 (2006.01) C07C 49/84 (2006.01) C07C 229/60 (2006.01)
Patent
CA 1324154
- 1 - Abstract The present invention relates to novel chromophore- containing compounds useful as sunscreen agents which have the ability to absorb both UVA and UVB wavelength radiation. These compounds comprise a specific type of UVA-absorbing chromophore covalently bonded to a specific type of UVB-absorbing chromophore. The chromophore moieties are covalently bonded together such that the electron systems of these moieties are directly coupled to thereby form a new chromophore. Typical of such compounds is Image ; or Image ; where B is a single bond or a linking moiety group selected from -O- and -NR-, wherein R is H or a C1-20 alkyl group; A is an R group; A2 is selected from -OR or -NR2; and B is selected from -NR- or -O-.
540715
Kirby Eades Gale Baker
The Procter & Gamble Company
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