Patent ID: 8252784

Claim:
A composition comprising (A) at least one compound of the formula I wherein R 4 and R 6 together form a C 2 -C 6 alkylene bridge which is unsubstituted or is substituted by one or more C 1 -C 4 alkyl radicals; R 5 and R 7 together form a C 2 -C 6 alkylene bridge which is unsubstituted or is substituted by one or more C 1 -C 4 alkyl radicals; R 2 and R 3 independently of one another are hydrogen, C 1 -C 18 alkyl or phenyl which phenyl is unsubstituted or is substituted one or more times by C 1 -C 18 alkyl, CN, OR 12 , SR 12 , halogen or C 1 -C 18 haloalkyl; R 1 is unsubstituted phenyl, naphthyl, phenanthryl, anthryl, thienyl, thianthrenyl, anthraquinonyl, xanthenyl, thioxanthyl, phenoxathiinyl, carbazolyl, fluorenyl or phenoxazinyl; or phenyl, naphthyl, phenanthryl, anthryl, thienyl, thianthrenyl, anthraquinonyl, xanthenyl, thioxanthyl, phenoxathiinyl, carbazolyl, fluorenyl or phenoxazinyl substituted one or more times by C 1 -C 18 alkyl, C 2 -C 18 alkenyl, C 1 -C 18 haloalkyl, NO 2 , NR 10 R 11 , CN, OR 12 , SR 12 , C(O)R 13 , C(O)OR 14 , halogen or a radical of the formula II or R 1 is a radical of the formula III R 10 , and R 11 independently of one another are hydrogen or C 1 -C 18 alkyl; R 12 , R 13 and R 14 independently of one another are hydrogen or C 1 -C 18 alkyl; R 15 is C 1 -C 18 alkyl, OH, CN, OR 10 , halogen or a radical of formula II; and n is 0 or 1; and (B) at least one anionically polymerizable or crosslinkable monofunctional or polyfunctional organic monomer, oligomer or polymer, wherein component (A) is present in an amount of from 0.01 to 20% by weight based on component (B).