Patent ID: 6057078
Filing Date: 2000-05-02
Classification: B33Y,C07F,C08F,G03C,G03F

Abstract:
A photoinitiator comprisingA) at least one borane of the formula VI ##STR82## in which n' is a number from 0 to 50;R.sub.1 ', R.sub.2 ', R.sub.3 ' and R.sub.4 ' are phenyl or another aromatic hydrocarbon, which radicals are unsubstituted or are substituted by unsubstituted or halo-, OR.sub.6 '- and/or NR.sub.8 'R.sub.9 '-substituted C.sub.1 -C.sub.6 alkyl, OR.sub.6 ', S(O).sub.p' R.sub.7 ', OS(O).sub.2 R.sub.7 ', NR.sub.8 'R.sub.9 ', C(O)OR.sub.6 ', C(O)NR.sub.8 'R.sub.9 ', C(O)R.sub.10 ', SiR.sub.11 'R.sub.12 'R.sub.13 ', BR.sub.14 'R.sub.15 ', halogen and/or P(O).sub.q' R.sub.16 'R.sub.17 ', at least one of the radicals R.sub.1 ', R.sub.2 ', R.sub.3 ', and R.sub.4 ' being a phenyl radical which is substituted ortho to the bond to the boron atom or being another aromatic hydrocarbon radical which is sterically hindered ortho to the boron atom;p' is a number from 0 to 2;R.sub.6 ' and R.sub.7 ' independently of one another are unsubstituted or COOR.sub.7a, OH, C.sub.1 -C.sub.12 alkoxy, CN or halo-substituted C.sub.1 -C.sub.12 alkyl, phenyl or phenyl-C.sub.1 -C.sub.6 alkyl, where the radicals phenyl or phenyl-C.sub.1 -C.sub.6 alkyl are unsubstituted or substituted one to five times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy or halogen;R.sub.7a is C.sub.1 -C.sub.12 alkyl;R.sub.8 ', R.sub.9 ', R.sub.10 ', R.sub.11 ', R.sub.12 ', R.sub.13 ', R.sub.14 ' and R.sub.15 ' independently of one another are as defined for R.sub.6 ' or are C.sub.3 -C.sub.12 cycloalkyl, or R.sub.8 ' and R.sub.9 ', together with the N atom to which they are attached, form a 5- or 6-membered ring which may additionally contain O or S atoms, or R.sub.14 ' and R.sub.15 ', together with the B atom to which they are attached, form a 5- or 6-membered ring;R.sub.16 ' and R.sub.17 ' independently of one another are as defined for R.sub.10 ';q' is 0 or 1; andX' is C.sub.1 -C.sub.20 alkylene which is unsubstituted or substituted by OR.sub.6 ', S(O).sub.p' R.sub.7 ', OS(O).sub.2 R.sub.7 ', NR.sub.8 'R.sub.9 ', C(O)OR.sub.6 ', C(O)NR.sub.8 'R.sub.9 ', C(O)R.sub.10 ', SiR.sub.11 'R.sub.12 'R.sub.13 ', BR.sub.14 'R.sub.15 ', halogen or P(O).sub.q' R.sub.16 'R.sub.17 ', or X' is C.sub.1 -C.sub.20 alkylene which is interrupted by one or more groups --O--, --S(O).sub.p' -- or --NR.sub.18 '--, or X' is C.sub.3 -C.sub.12 cycloalkylene or C.sub.2 -C.sub.8 alkenylene, which radicals are unsubstituted or substituted by OR.sub.6 ', S(O).sub.p' R.sub.7 ', OS(O).sub.2 R.sub.7 ', NR.sub.8 'R.sub.9 ', C(O)OR.sub.6 ', C(O)NR.sub.8 'R.sub.9 ', C(O)R.sub.10 ', SiR.sub.11 'R.sub.12 'R.sub.13 ', BR.sub.14 'R.sub.15 ', halogen or P(O).sub.q' R.sub.16 'R.sub.17 ', or are interrupted by one or more groups --O--, --S(O).sub.p' -- or --NR.sub.18 '--,or X' is a divalent aromatic hydrocarbon radical which is unsubstituted or substituted by C.sub.1 -C.sub.6 alkyl, OR.sub.6 ', S(O).sub.p' R.sub.7 ', OS(O).sub.2 R.sub.7 ', NR.sub.8 'R.sub.9 ', C(O)OR.sub.6 ', C(O)NR.sub.8 'R.sub.9 ', C(O)R.sub.10 ', SiR.sub.11 'R.sub.12 'R.sub.13 ', BR.sub.14 'R.sub.15 ', halogen or P(O).sub.q' R.sub.16 'R.sub.17 ', or X' is a radical of the formula VII or VIII ##STR83## in which Y' is --(CH.sub.2).sub.r' --, --C(O)--, --NR.sub.18 '--, --O--, --S(O).sub.p' --, --CR.sub.19 'R.sub.20 '--, ##STR84## or ##STR85## r' is 1,2 or 3; s' is 2 or 3;R.sub.18 ' is as defined for R.sub.6 ' or is hydrogen;R.sub.19 ' and R.sub.20 ' are C.sub.1 -C.sub.6 alkyl or phenyl, or R.sub.19 ' and R.sub.20 ', together with the C atom to which they are attached, form a 5- or 6-membered ring;A' and Q' independently of one another are a direct bond, --(CH.sub.2).sub.r' --, --CH.dbd.CH-- --C(O)--, --NR.sub.18 '-- or --S(O).sub.p' --, --CR.sub.19 'R.sub.20 '--, ##STR86## or the radicals R.sub.1 ', R.sub.2 ', R.sub.3 ', R.sub.4 ' or X' form bridges to produce radicals of the formula (IX) or (X) ##STR87## in which G' is --(CH.sub.2).sub.t' --, --CHCH--, --C(O)--, --NR.sub.18 '--, --O-- or --S(O).sub.p' --, --CR.sub.19 'R.sub.20 '--, ##STR88## or ##STR89## t' is 0, 1 or 2; the radicals of the formulae (VII), (VIII), (IX) and (X) being unsubstituted or substituted on the aromatic rings by OR.sub.6 ', S(O).sub.p' R.sub.7 ', OS(O).sub.2 R.sub.7 ', NR.sub.8 'R.sub.9 ', C(O)OR.sub.6 ', C(O)NR.sub.8 'R.sub.9 ', C(O)R.sub.10 ', SiR.sub.11 'R.sub.12 'R.sub.13 ', BR.sub.14 'R.sub.15 ' or halogen and it being possible for further phenyl rings to be fused to the phenyl rings of the formulae (VII), (VIII), (IX) and (X); andB) at least one electron donor compound.