Zinc oxide-alumina-silica-based crystallized glass

Details Zinc oxide-alumina-silica-based crystallized glass Zinc oxide-alumina-silica-based crystallized glass

2007-01-30

2007-01-30

McNeil, Jennifer C (Department: 1775)

Stock material or miscellaneous articles

Composite

Of quartz or glass

C428S434000, C501S004000, C501S007000, C501S055000, C501S068000, C501S069000, C501S072000

Reexamination Certificate

active

11150906

ABSTRACT:
A zinc oxide-alumina-silica-based crystallized glass is provided, containing zinc oxide, alumina and silica as main components, and zirconia as a nucleating agent. The main components are provided in a ratio of 20–30% by mass of zinc oxide, 15–25% by mass of alumina and 50–60% by mass of silica to amount to 100% by mass in total. The nucleating agent is contained in an amount of 3–6 parts by mass based on 100 parts by mass of the main components. The crystallized glass also includes at least one modification component selected from the group consisting of lithium oxide, sodium oxide, potassium oxide, diphosphorus pentoxide, niobium oxide and tantalum oxide in addition to the main components and the nucleating agent.

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patent: 2002-109923 (2002-04-01), None
patent: 2003-051210 (2003-02-01), None

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