| 摘要 |
In a negative acting photoimageable composition comprising an acid functional binder polymer, photopolymerizable .alpha.,.beta.-ethylenically unsaturated comp ounds, and photoinitiator, at least a portion of the photopolymerizable compounds are isocy anate trimers having tri-acrylate functionality. Further, the composition contains a d ibenzoate plasticizer.
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