Ultraviolet light curable coating compositions comprise an ultraviolet light curable component which shrinks upon curing, a component which is not significantly ultraviolet light curable and a photoinitiator. As the composition is cured by exposure to ultraviolet light, the curable component and the...http://www.google.de/patents/US4005244?utm_source=gb-gplus-sharePatent US4005244 - Ultraviolet light curable opacifying compositions
