申请人:Merck Patent Gesellschaft mit bescrankter Haftung
公开号:US04922004A1
公开(公告)日:1990-05-01
The invention relates to copolymerizable photoinitiators of the general formula I ##STR1## in which R.sup.1 and R.sup.2 are each H, C.sub.1 -C.sub.6 -alkyl or phenyl, R.sup.3 is H, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkanoyl or the group Z, R.sup.4 is H, halogen, C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.12 -alkoxy, C.sub.1 -C.sub.12 -alkylthio or the group --X[(CH.sub.2 --CH.sub.2 --O).sub.n --Z].sub.m and X os O, S or N n is an integer from 0 to 4, m is the integer 1 for X=O and S or the integer 1 or 2 for X=N, Z is the group --CO--CR.dbd.CR'R" with R, R', R" each being H or CH.sub.3, always at least one of the R.sup.3 or R.sup.4 groups containing the group Z.
本发明涉及一般式I的共聚光引发剂,其中R.sup.1和R.sup.2分别为H、C.sub.1-C.sub.6烷基或苯基,R.sup.3为H、C.sub.1-C.sub.6烷基、C.sub.1-C.sub.6烷基、C.sub.1-C.sub.6酰基或基团Z,R.sup.4为H、卤素、C.sub.1-C.sub.12烷基、C.sub.1-C.sub.12烷氧基、C.sub.1-C.sub.12烷硫基或基团--X[(CH.sub.2--CH.sub.2--O).sub.n--Z].sub.m,其中X为O、S或N,n为0至4的整数,m为X=O和S时为整数1,X=N时为整数1或2,Z为--CO--CR.dbd.CR'R"基团,其中R、R'、R"分别为H或CH.sub.3,始终至少一个R.sup.3或R.sup.4基团含有Z基团。