Patent ID: 6537729
Filing Date: 2003-03-25
Classification: B33Y,G03F

Abstract:
A photosensitive composition comprising:(a) a cycloaliphatic diepoxide; (b) a polyfuntional (meth)acrylate selected from the group consisting of 1,4 cyclohexanedimethanol diacrylate, dipentaerythritol monohydroxypenta(meth)acrylate, and trimethylolpropane triacrylate; (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 acrylate of bisphenol A diepoxide.