Patent ID: 7256232
Filing Date: 2007-08-14
Classification: C04B,C08K,C09D,C23C

Abstract:
1. A coating precursor, comprising: a silicone resin selected from the group consisting of polymethylsiloxanes, polymethylsilsesquioxanes, and mixtures thereof, the silicone resin comprising a proportion of OH groups substituted for methyl groups between about 0.5% and about 2%, a mineral filler, and an organic solvent in which the resin is soluble and the mineral filler is suspendable, the silicone resin and the mineral filler producing a solid layer on a substrate after the organic solvent has evaporated, and being chemically reactive so as to produce a cohesive refractory layer on the substrate after calcining, said cohesive refractory layer containing, by weight, about 5 to 25% silica from decomposition of the silicone resin and about 75 to 95% of said mineral filler.