Patent ID: 7232646

Claim:
A biocompatible, low viscosity, radiation curable formulation comprising: a) 55 to 95 weight percent of a monomeric or oligomeric dimethacrylate of bisphenol-A or bisphenol-F; b) 0 to 20 weight percent of a urethane methacrylate with a functionality n<4 and a viscosity <15 Pa s; c) 2 to 15 weight percent of a monomeric or aliphatic or cycloaliphatic dimethacrylate with a viscosity <5 Pa s; d) 0 to 15 weight percent of a monofunctional methacrylate with a viscosity <3 Pa s; e) 0.5 to 6 weight percent of one or a combination of photoinitiators effective to form free radicals; f) 0.001 to 2 weight percent of the free radical inhibitor 2,2,6,6-tetramethylpiperdine-1-yloxy which can be present in combination with known inhibitors; g) 0 to 40 weight percent of fillers; h) 0 to 5 weight percent of color pigments; and i) 0 to 5 weight percent of usual additives like UV stabilizers or flow additives.