Refractory object, glass overflow forming block, and process of forming and using the refractory object

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United States of America Patent

PATENT NO 9796630
APP PUB NO 20160060172A1
SERIAL NO

14873427

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A refractory object can include at least 10 wt % Al2O3. Further, the refractory object may contain less than approximately 6 wt % SiO2 or may include a dopant that includes an oxide of Ti, Mg, Ta, Nb, or any combination thereof. In an embodiment, at least approximately 1% of the Al2O3 in the refractory object can be provided as reactive Al2O3. In another embodiment, the refractory object may have a density of at least approximately 3.55 g/cc, a corrosion rate of no greater than approximately 2.69 mm/year, or any combination of the foregoing. In a particular embodiment, the refractory object can be used to form an Al—Si—Mg glass sheet. In an embodiment, the refractory object may be formed by a process using a compound of Ti, Mg, Ta, Nb, or any combination thereof.

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Patent Owner(s)

Patent OwnerAddress
SAINT-GOBAIN CERAMICS & PLASTICS INCWORCESTER MA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Citti, Olivier Wellesley, US 43 212
Kazmierczak, Andrea L Marlborough, US 8 29

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