Patent ID: 8318870

Claim:
A composition comprising: a) at least one free-radically polymerizable monomer M; b) at least one free-radical former; c) at least one epoxy resin A which has an average of more than one epoxy group per molecule; and d) at least one compound of the formula (I) where the R 1 radical is a hydrocarbyl radical having 1 to 6 carbon atoms; the R 3 , R 4 , R 5 , R 6 , R 7 and R 8 radicals are each independently a hydrogen atom or a hydrocarbyl radical having 1 to 6 carbon atoms; and the R 2 and R 9 radicals are each independently a hydrogen atom or a hydrocarbyl radical having 1 to 6 carbon atoms or a radical of the formula (II) where the R 10 radical is a hydrogen atom or a methyl group, wherein the R 2 and/or R 9 radicals are a radical of the formula (II).