Infrared (IR) absorbing polyvinyl butyral composition, sheet thereof and laminate containing the same
AssigneeSolutia Inc.
InventorW. Keith Fisher
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Abstract
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.
Claims15
A polyvinyl butyral composition comprising melt processable polyvinyl butyral resin containing an infrared absorbing effective amount of
- (i) lanthanum hexaboride present in an amount between about 0.005 and about 0.1 percent by weight of the composition, or
- (ii) a mixture of lanthanum hexaboride present in an amount between about 0.001 and about 0.1 percent by weight of the composition and at least one selected from the group consisting of indium tin oxide and antimony tin oxide, said indium tin oxide and/or antimony tin oxide present in said mixture in an amount of about 0.05 to about 2.0 percent by weight of the composition
- dispersed in said polyvinyl butyral.
A polyvinyl butyral sheet containing an infrared absorbing effective amount of (i) lanthanum hexaboride or (ii) a mixture of lanthanum hexaboride and at least one selected from the group consisting of indium tin oxide and antimony tin oxide dispersed in said polyvinyl butyral sheet, wherein said sheet is extruded.
A glass laminate comprising two sheets of glass with a sheet disposed therebetween comprised of a polyvinyl butyral resin containing an infrared absorbing effective amount of (i) lanthanum hexaboiide or (ii) a mixture of lanthanum hexaboride and at least one selected from the group consisting of indium tin oxide and antimony tin oxide dispersed in said sheet, wherein said sheet is extruded.
Dependencies are inferred from the claim text.