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Title:
ガラス板の製造方法
Document Type and Number:
Japanese Patent JP5704500
Kind Code:
B2
Abstract:

To promote recycling of an alkali-free glass, to invent a method for manufacturing a glass sheet with excellent dislvability of a glass batch, to increase recycling rate of the alkali-free glass, and to reduce production cost of a glass sheet having a high strain point.

The method for manufacturing the glass sheet comprises: blending glass raw materials and preparing the glass batch; subsequently melting the glass batch in a glass-melting furnace; and shaping the melt into the glass sheet. Here, the alkali-free glass is used as a portion of the glass raw materials. The glass raw materials are blended so that the glass sheet acquires a glass composition comprising, in mass% calculated in terms of oxides, 40-75% SiO2, 1-18% Al2O3, 0.1-12% B2O3, 5-30% RO, 0-10% MgO, 0-20% CaO, 0-15% SrO, 0-15% BaO and 0-25% Na2O+K2O.

COPYRIGHT: (C)2011,JPO&INPIT


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Inventors:
Six cars Masato
Takanori Hironori
Application Number:
JP2009282722A
Publication Date:
April 22, 2015
Filing Date:
December 14, 2009
Export Citation:
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Assignee:
Nippon Electric Glass Co., Ltd.
International Classes:
C03C3/091; C03C1/00; C03C3/093; H01J9/24; H01J11/22; H01J11/34; H01J17/16; H01L31/04; H01L31/06; H01M14/00
Domestic Patent References:
JP2005213132A
JP2009280425A
JP2008001589A



 
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