Patent ID: 8088467

Claim:
A curable composition for use as a data storage material in an optical storage medium comprising: 50 to 65 wt % of an oligomer; 10 to 20 wt % of a low T g monomer having a T g of 0 to −80° C., wherein the low T g monomer is selected from 2(2-ethoxyethoxy) ethyl acrylate, isodecyl acrylate and combinations thereof; 9 to 14 wt % of a high T g monomer having a T g of 50 to 140° C., wherein high T g monomer is isobornyl acrylate; 10 to 16 wt % of a difunctional monomer selected from 1,6-hexanediol diacrylate, tricyclododecanedimethanol diacrylate and combinations thereof; 4 to 9 wt % of a photo initiator; and 0.1 to 1.5 wt % of a mold release additive; wherein the curable composition when uncured has a viscosity of 1 to 3,000 mPa·s at 25° C.; and, wherein the dynamic storage modulus, E′, of the curable composition when cured is 5 to 100 MPa at the temperature of T peak +60° C.