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Title:
METHOD FOR PRODUCING GLASS
Document Type and Number:
Japanese Patent JP2009084073
Kind Code:
A
Abstract:

To provide a method for producing a glass which can reduce foam remaining in a glass after production.

Disclosed is a method for producing a glass where a glass raw material comprising silica sand, an alkali metal source and an alkaline-earth metal source is melted, and is subjected to decompression defoaming treatment, so as to be molded, as the alkaline-earth metal source, the one comprising the hydroxide of an alkaline-earth metal by 1 to 100 mol% expressed in terms of MO (wherein, M denotes an alkaline-earth metal element) in the alkaline-earth metal source of 100 mol% expressed in terms of MO is used, thus the content of moisture in the glass is controlled.


Inventors:
ITO HAJIME
YAMAMOTO MINEKO
AKATA SHUICHI
ANDO RYOTA
YONEZU HOSAKU
Application Number:
JP2007252271A
Publication Date:
April 23, 2009
Filing Date:
September 27, 2007
Export Citation:
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Assignee:
ASAHI GLASS CO LTD
International Classes:
C03C1/00; C03B1/00; C03C3/078; C03C3/087; C03C3/089; C03C3/091; C03C3/093
Domestic Patent References:
JP2005306719A2005-11-04
JP2001500098A2001-01-09
JP2002293547A2002-10-09
JP2002293547A2002-10-09
JP2007164985A2007-06-28
JP2004288228A2004-10-14
JP2005306719A2005-11-04
JP2001500098A2001-01-09
Foreign References:
WO2006080444A12006-08-03
WO2008132887A12008-11-06
WO2007111079A12007-10-04
WO2003104157A12003-12-18
WO2007086441A12007-08-02
WO2007111079A12007-10-04
WO2003104157A12003-12-18
WO2006080444A12006-08-03
WO2008132887A12008-11-06
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai



 
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