Invention Grant
- Patent Title: LAS-type float glass
- Patent Title (中): LAS型浮法玻璃
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Application No.: US13062564Application Date: 2009-08-11
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Publication No.: US08507392B2Publication Date: 2013-08-13
- Inventor: Hideo Yamauchi , Tomohiro Nagakane
- Applicant: Hideo Yamauchi , Tomohiro Nagakane
- Applicant Address: JP Shiga
- Assignee: Nippon Electric Glass Co., Ltd.
- Current Assignee: Nippon Electric Glass Co., Ltd.
- Current Assignee Address: JP Shiga
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2008-229660 20080908
- International Application: PCT/JP2009/064185 WO 20090811
- International Announcement: WO2010/026854 WO 20100311
- Main IPC: C03C10/12
- IPC: C03C10/12 ; C03C10/14

Abstract:
An LAS-type float glass, which is substantially free of As2O3 and/or Sb2O3 and precipitates a β-quartz solid solution or a β-spodumene solid solution as a main crystal by heat treatment, wherein, when C1 [mass %] represents the content of SnO2 at a glass surface, C0 [mass %] represents the content of SnO2 at a depth of 0.5 mm from the glass surface, and k [mass %/mm] represents an SnO2 concentration gradient defined by k=(C1-C0)/0.5, the LAS-type crystallized glass satisfies relationships of K≦2 and C0≦0.8 with respect to at least one surface thereof.
Public/Granted literature
- US20110160033A1 LAS-TYPE FLOAT GLASS Public/Granted day:2011-06-30
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