Plasticized polyvinyl butyral sheet containing epoxy resin

Stock material or miscellaneous articles – Composite – Of epoxy ether

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428426, 428432, 428433, 428436, 428437, 428469, 428699, 428701, 428702, 428913, 359359, 359360, 359580, B32B 2738, G02B 5428

Patent

active

055298486

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.

REFERENCES:
patent: 4782216 (1988-11-01), Woodard
patent: 4799745 (1989-01-01), Meyer et al.
patent: 5061568 (1991-10-01), Kessel

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