Patent ID: 8268293
Filing Date: 2012-09-18
Classification: A61K,A61P,A61Q,C07C,C09K

Abstract:
1. A method of achieving UV-A or UV-B protection comprising employing compounds which do not themselves exhibit significant UV absorption in the UV-A or UV-B region, but are reactive under use conditions, for the development of UV-A or UV-B protection during use wherein said compounds are compounds of the formula I where Ar stands for an unsubstituted or mono- or polysubstituted aromatic ring or condensed ring systems having 6 to 18 C atoms, at least one ring of which has an aromatic character and in which one or two CH groups per ring may be replaced by C═O, N, O or S and, in addition, one or two CH R where m stands for an integer from the range from 1 to 30, and A X stands for a group selected from —H, —CN, —C(═O)—R Y stands for H or Ar, Z R or salts of the compounds of the formula I.