Plasticized polyvinyl butyral sheet containing epoxy resin
AssigneeMonsanto Company
InventorJohn J. D'Errico
Life of this patent
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Abstract
Plasticized polyvinyl butyral sheet containing epoxy resin in amount effective, after prolonged exposure to light, to counteract reduction of adhesion between the sheet and a photoreactive component with which it will be in potential contact. The photoreactive component is typically a dielectric such as a metal oxide layer of a heat-wave-reflective or electrically conductive multi-layer coating, which coating can optionally be supported on (a) a thermoplastic substrate sandwiched between two of such polyvinyl butyral sheets forming a prelaminate for use as a constituent of a laminated glazing panel or (b) a glass sheet component of such glazing panel.
Claims10
Plasticized polyvinyl butyral sheet containing glass adhesion control agent and epoxy resin from about 3 to about 7 parts by weight per 100 parts by weight of polyvinyl butyral to counteract a light induced reduction of adhesion between the sheet and a photoreactive component of a heat-wave-reflective or electrically conductive coating.
Plasticized polyvinyl butyral sheet containing diepoxide of poly(oxypropylene) glycol in an amount of about 3 to about 7 parts by weight per 100 parts by weight of polyvinyl butyral.
Dependencies are inferred from the claim text.