INFRARED (IR) ABSORBING POLYVINYL BUTYRAL COMPOSITION, SHEET THEREOF AND LAMINATE CONTAINING THE SAME

摘要

A polyvinyl butyral composition is disclosed which is comprised of polyvinyl butyral resin containing an IR absorbing effective amount of lanthanum hexaboride or a mixture of lanthanum hexaboride and at least one of tin oxide and antimony tin oxide. Also disclosed are a sheet of the IR absorbing polyvinyl butyral and a glass laminate having the IR absorbing polyvinyl butyral sheet disposed between two sheets of glass.