Patent ID: 8481241

Claim:
A radiation curing composition suitable for building a three dimensional object by a solid freeform method, the composition comprising: one or more meth(acrylic)mono-functional monomers where a respective polymer has a Glass Transition Temperature higher than about 60° C.; one or more meth(acrylic)di-functional oligomers where a respective polymer has a Glass Transition Temperature lower than about 40° C.; and an acrylated silicon oligomer, wherein the concentration of said one or more meth(acrylic)mono-functional monomers is at least 20% by weight relative to the total weight of the composition and the concentration of said one or more meth(acrylic)di-functional oligomers is at least 20% by weight relative to the total weight of the composition; and wherein the composition has a viscosity of about 50-500cps at ambient temperature.