Patent ID: 6984483
Filing Date: 2006-01-10
Classification: C09D

Abstract:
1. A composition comprising a photoinitiator and a silicic acid polycondensate, wherein the silicic acid polycondensate is produced by a process comprising condensing one or more organically modified silanediols of the general formula I with one or more organically modified silanes of the general formula II wherein said condensing is performed without adding water the molar ratio of, wherein said silanediols of the general formula I to said silanes of the general formula II is 1:1, wherein up to 90 mole percent of said silane of the general formula II is optionally replaced by one or more co-condensable compounds selected from the group consisting of boron compounds, aluminum compounds, silicon compounds, germanium compounds, titanium compounds and zirconium compounds, and wherein Ar is a radical comprising 6 to 20 carbon atoms and one or more aromatic groups, R is an organic radical comprising 2 to 15 carbon atoms and one or more epoxy groups and/or one or more C═C double bonds, R′ is methyl or ethyl, wherein said photoinitiator is present in said composition in a quantity effective for photochemical curing via UV.