Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Reexamination Certificate
2010-03-08
2010-11-02
Lorengo, Jerry (Department: 1793)
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
C423S635000, C501S135000, C174S255000
Reexamination Certificate
active
07824642
ABSTRACT:
A forsterite powder with superior characteristics which can be sintered at a relatively low temperature can be economically produced, when a magnesium source, a silicon source, and copper particles are mixed to prepare a mixed powder containing 300 to 2,000 ppm by weight of the copper particles, and the mixed powder is fired. The magnesium source used is preferably Mg(OH)2, and the silicon source used is preferably SiO2. A polycrystalline forsterite powder is preferably produced. The magnesium source, the silicon source, and the copper particles can be mixed in the presence of a solvent to prepare the mixed powder. The forsterite powder preferably contains 300 to 2,000 ppm by weight of copper, has a particle size of 0.20 to 0.40 μm and has a crystal size of 0.034 to 0.040 μm.
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Mori Naoya
Moriya Yoichi
Dickstein & Shapiro LLP
Lee Rebecca
Lorengo Jerry
Murata Manufacturing Co. Ltd.
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