Patent ID: 8026293

Claim:
A composition of a photoactive mixture, comprising: one or more monomers, each monomer consisting of a polyhedral silsesquioxane oligomer, each polyhedral silsesquioxane oligomer having one or more polymerizable groups, wherein each of said one or more polymerizable group is bound to a different silicon atom of a respective polyhedral silsesquioxane oligomer; one or more polymerizable monomeric diluents, said monomeric diluents constituting at least 50% by weight of the composition; (a) one or more photoacid generators, (b) one or more photoinitiators, or (c) a mixture of one or more photoacid generators and said one or more photoinitiators; and wherein said photoactive mixture has a viscosity of about 50 centipoise or less at about 20° C.