Patent ID: 8455607
Filing Date: 2013-06-04
Classification: C08G,C08J,C08K,C08L,H01L

Abstract:
1. A curable liquid polysiloxane/TiO 2 composite for use as a light emitting diode encapsulant, comprising: a polysiloxane with TiO wherein the polysiloxane has an average compositional formula: wherein each R wherein each Z is independently selected from a hydroxyl group and a C wherein 0≦a≦0.005; wherein 0.8495≦b≦0.9995; wherein 0.0005≦c≦0.10; wherein 0<d≦0.15; wherein each x is independently selected from 0, 1 and 2; wherein each y is independently selected from 1, 2 and 3; wherein a+b+c+d=1; wherein the polysiloxane comprises, as initial components: wherein each R wherein the D units contain >1 ppb to ≦100 ppm in combined total of all target contaminants having formulae selected from wherein R 10 is selected from a phenol-oxy-phenyl group and a phenyl-oxy-(hydroxy)phenyl group and wherein R 11 is a hydroxyphenyl group; wherein the curable liquid polysiloxane/TiO