In a negative acting photoimageable composition comprising an acid functional bi nder polymer having a T g between about 60 and about 90.degree.C, photopolymerizable .alpha.,.beta.-ethylenically unsaturated compounds, and photoinitiator, at least a portion of the photopolyme rizable compounds are isocyanate trimers having tri-.alpha.,.beta.-ethylenically unsatur ated functionality and a weight average molecular weight of at least about 1000.
PHOTOIMAGEABLE COMPOSITIONS CONTAINING PHOTOPOLYMERIZABLE URETHANE OLIGOMERS AND LOW TG BINDER POLYMERS