Patent ID: 6727043
Filing Date: 2004-04-27
Classification: B33Y,G03F

Abstract:
A photosensitive composition comprising:(a) a cycloaliphatic diepoxide; (b) an acrylic material selected from the group consisting of aromatic acrylic material, cycloaliphatic acrylic material, or combinations thereof, (c) a polytetrahydrofuran polyether polyol having a molecular weight in the range of 250 to 2900; (d) at least one cationic photoinitiator; (e) at least one free-radical photoinitiator; and (f) an aliphatic (meth)acrylate selected from the group consisting of aliphatic trifunctional (meth)acrylates, aliphatic tetrafunctional (meth)acrylates, and aliphatic pentafunctional (meth)acrylates.