Bent, veneer-encapsulated heat-treated safety glass panels and methods of manufacture
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United States of America Patent
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May 14, 2019
Grant Date -
Dec 8, 2016
app pub date -
Jun 1, 2016
filing date -
Jun 3, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A laminated, bent, safety glass panel (30) for architectural or interior uses and a method of manufacturing such panels. The panel comprises a single heat-treated bent glass sheet, fully-tempered or heat-strengthened, forming a substrate (32) encapsulated by at least one thin, chemically-strengthened, glass veneer sheet (38). The veneer sheet (38), an alkali-aluminosilicate or other alkali-containing glass recipe strengthened by ion-exchange treatment, is cold-bent over a polymer interlayer (40) and permanently laminated to form a protective barrier on the heat-treated glass that dampens the explosive release of its internal residual stresses in the event of breakage thereby preventing particles dislodging and subsequent disintegration. The vulnerable perimeter (37) and perforation (45) edges of the veneer sheet (38) are equal in size or inset to the edges of the heat-treated substrate (32) with its deeper robust compressive stresses. Veneers may be laminated to both major substrate surfaces.
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Cited Art Landscape
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