| 摘要 |
<p>The invention relates to copolymerizable photo initiators of the general formula I (I) in which R1 and R2 are each H, C1-C6-alkyl, R3 is H, C1-C6-alkyl, C1-C6-alkanoyl or the group Z, R4 is H, halogen, C1-C12-alkyl, C1-C12-alkoxy, C1-C12-alkylthio or the group -X¢(CH2CH2-O)n-Z!m and X is O, S or N n is the numbers 0 to 4, m is the number 1 for X = O and S or the numbers 1 and 2 for X = N : Z is the group -CO-CR=CR'R" with R, R', R" each being H or CH3, always at least one of the radicals R3 or R4 containing the group Z.</p> |
