Patent ID: 7875564

Claim:
A multilayer fire-resistant material, comprising: two or more layers formed of homogeneous or heterogeneous materials, with at least one layer being an organic/inorganic composite; wherein the organic/inorganic composite comprises: an organic component of a polymer, oligomer, or copolymer having a first reactive functional group of isocyanate, epoxy, hydroxyl or amino; and inorganic particles having a second reactive functional group of hydroxyl, amino, carboxylic acid, isocyanate, or epoxy; wherein the inorganic particles are chemically bonded to the organic component via a reaction between the first and the second reactive functional groups, provided that (a) when the first reactive functional group is isocyanate, the second reactive functional group is hydroxyl; (b) when the first reactive functional group is epoxy, the second reactive functional group is amino; (c) when the first reactive functional group is hydroxyl, the second reactive functional group is carboxylic acid or isocyanate; and (d) when the first reactive functional group is amino, the second reactive functional group is epoxy.