Patent ID: 7629424
Filing Date: 2009-12-08
Classification: C08F,C08J

Abstract:
1. A composition formed by combining compounds comprising: a. a metal-containing precursor unit MU comprising at least one member selected from the group consisting of  where M comprises a metal with formal valency of 0-5 selected from Zr, Hf, Ge, Ti, Sn, Zn, Ni, Nb, Eu, In, Al, Mn, Nd, Sb, Mg, or Y; Ligand A is selected individually or in combination from organic compounds with refractive index of at least 1.5; w is 1 to 5; Ligand B contains an ethylenically unsaturated functional group capable of undergoing a combining reaction; x is 0 to 4, with the proviso that x is 0 only when A contains an ethylenically unsaturated functional group capable of undergoing a combining reaction; Ligand C is selected from oxygen, sulfur, a halogen atom, or —XR b. a catalyst or an initiator capable of inducing a combining reaction of ethylenically unsaturated functional groups of the metal-containing precursor units, wherein the composition is optically clear as measured by the Transmittance Test.