Title:
LAS-TYPE FLOAT GLASS
Document Type and Number:
WIPO Patent Application WO/2010/026854
Kind Code:
A1
Abstract:
An LAS-type float glass which is substantially free from As2O3 and/or Sb2O3 and precipitates a solid solution of β-quartz or of β-spodumene as the main crystal by means of heat treatment, characterized in that when C1 represents SnO2 content [mass%] at the glass surface, C0 represents SnO2 content [mass%] at the depth of 0.5mm from the glass surface; and k represents SnO2 concentration gradient [mass%/mm] as defined by the formula: k=(C1-C0)/0.5, at least one side of the glass satisfies the relationships: k ≤ 2 and C0 ≤ 0.8.
More Like This:
Inventors:
YAMAUCHI HIDEO (JP)
NAGAKANE TOMOHIRO (JP)
NAGAKANE TOMOHIRO (JP)
Application Number:
PCT/JP2009/064185
Publication Date:
March 11, 2010
Filing Date:
August 11, 2009
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
YAMAUCHI HIDEO (JP)
NAGAKANE TOMOHIRO (JP)
YAMAUCHI HIDEO (JP)
NAGAKANE TOMOHIRO (JP)
International Classes:
C03C10/14; C03B18/02; C03C10/12
Foreign References:
| JP2001354445A | 2001-12-25 | |||
| JP2003020254A | 2003-01-24 | |||
| JP2000044282A | 2000-02-15 | |||
| JPH11507006A | 1999-06-22 | |||
| JPH11310421A | 1999-11-09 | |||
| JP3921049B2 | 2007-05-30 | |||
| JPH0420182B2 | 1992-03-31 | |||
| JPH01308845A | 1989-12-13 | |||
| JP2001354429A | 2001-12-25 | |||
| JP2001354446A | 2001-12-25 |
Other References:
See also references of EP 2322491A4
Attorney, Agent or Firm:
TANAKA HIDEYOSHI (JP)
Hideyoshi Tanaka (JP)
Hideyoshi Tanaka (JP)
Download PDF: