Title:
LOW THERMAL EXPANSION FILLER, METHOD FOR PRODUCING SAME, AND GLASS COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2010/131731
Kind Code:
A1
Abstract:
Disclosed are a low thermal expansion filler for obtaining a low thermal expansion glass that has low thermal expansion coefficient and excellent fluidity in a molten state, and a glass composition which contains the filler.
Specifically disclosed is a low thermal expansion filler which is composed of a hexagonal zirconium phosphate powder that has a specific particle size distribution wherein particles having a particle size of not less than 0.8 µm but not more than 50 µm are not less than 95% by volume. The low thermal expansion filler exhibits excellent fluidity and low thermal expansion characteristics when blended in a glass. Also specifically disclosed is a glass composition which contains the low thermal expansion filler.
Inventors:
SUGIURA Koji (C/O TOAGOSEI CO. LTD, 1-1, Funami-cho, Minato-k, Nagoya-shi Aichi 27, 〒4550027, JP)
Application Number:
JP2010/058156
Publication Date:
November 18, 2010
Filing Date:
May 14, 2010
Export Citation:
Assignee:
TOAGOSEI CO., LTD. (1-14-1, Nishi-Shimbashi Minato-ku Tokyo, 19, 〒1058419, JP)
東亞合成株式会社 (〒19 東京都港区西新橋一丁目１４番１号 Tokyo, 〒1058419, JP)
東亞合成株式会社 (〒19 東京都港区西新橋一丁目１４番１号 Tokyo, 〒1058419, JP)
International Classes:
C01B25/45; C03C8/24; C04B35/447; H01J5/20; H01J11/02; H01J29/86
Claims:
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