EP1382599A2 - 2-(2,4 dihydroxyphenyl)-4,6 bis(3,4-dimethylphenyl)-s-triazine and 2-(2,4-dihydroxyphenyl)4(3,4-dimethylphenyl)-6-(2,3-dimethylphenyl)-s-triazine and derivatives thereof as UV-absorber