Methods for reducing zirconia defects in glass sheets

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United States of America Patent

PATENT NO 9061931
APP PUB NO 20140230490A1
SERIAL NO

14264251

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Abstract

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Methods are disclosed for treating zircon-containing forming structures, e.g., zircon isopipes, with one or more treatment glass compositions in which defect-causing reactions between the zircon of the forming structure and molten glass are suppressed at the delivery temperature of the treatment glass. The treatment compositions can be used during start-up of a forming structure, between runs of the same production glass on a given forming structure, and/or when transitioning between runs of two production glasses on a given forming structure. The treatment compositions can be used with production glasses that are ion-exchangeable.

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Patent Owner(s)

  • CORNING INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ellison, Adam James Corning, US 108 2891
Kiczenski, Timothy James Corning, US 67 494
Mauro, John Christopher Corning, US 101 1305

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