Patent ID: 6034150
Filing Date: 2000-03-07
Classification: C07D,C08F

Abstract:
A method of photopolymerizing a photopolymerizable vinyl compound having at least one ethylenically unsaturated double bond, comprising exposing photopolymerizable vinyl compound to radiation in the presence of a maleimide compound of the formula ##STR13## wherein: (a) each R.sub.1 and R.sub.2 is independently selected from the group consisting of hydrogen, linear or branched C1 to C4 alkyl, and halogen;(b) R is linear or branched C1 to C10 alkylene, oxygen, sulfur, nitrogen, or --SiH.sub.2 --; and(c1) when R is C1 to C10 alkylene, FG is a functional group selected from the group consisting of --OR.sub.3, --SR.sub.3, --SiH.sub.2 R.sub.3, --OC(O)N(R.sub.3).sub.2, --OC(O)C(.dbd.CHR.sub.3)R.sub.3, --OC(O)R.sub.3, --C(O)R.sub.3, --N(R.sub.3).sub.2, --C(O)OR.sub.3, --NCO, --C(O)N(R.sub.3).sub.2, --OC(O)OR.sub.3, --CN, halogen, --CH.sub.2 N-aryl-FG', --CH.sub.2 N-aryl-R.sub.3 -FG', sulfonic acid, quaternary ammonium, and salts thereof, in which each R.sub.3 is selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, arylalkyl, and alkylaryl, with the proviso that when R is --OR.sub.3, then R.sub.3 is not hydrogen, or when R is --OC(O)N(R.sub.3).sub.2, then R.sub.3 is not aryl, or when R is --OC(O)R.sub.3, then R.sub.3 is not alkyl, and in which FG' is selected from the group consisting of --OR.sub.3, --SR.sub.3, --SiH.sub.2 R.sub.3, --OC(O)N(R.sub.3).sub.2, --OC(O)C(.dbd.CHR.sub.3)R.sub.3, --OC(O)R.sub.3, --C(O)R.sub.3, --N(R.sub.3).sub.2, --C(O)OR.sub.3, --NCO, --C(O)N(R.sub.3).sub.2, --OC(O)OR.sub.3, --CN, halogen, sulfonic acid, and quaternary ammonium, or(c2) when R is oxygen, sulfur, nitrogen, or --SiH.sub.2 --, FG is selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, alkylaryl, arylalkyl, alkyl-FG"", and aryl-FG"", wherein FG"" is the same as FG' as defined in (c1) above, or(c3) FG is a functional group as defined in (c1) in combination with a polyethylene glycol derived spacer group linking said maleimide unit with at least one other maleimide unit to form a di- or multifunctional maleimide compound.