Method for preparing pre-reacted batches of raw materials for the production of glass formulas
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United States of America Patent
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Mar 19, 2002
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N/A
app pub date -
May 3, 1999
filing date -
May 3, 1999
priority date (Note) -
Expired
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Abstract
A method for preparing pre-reacted batches of raw materials substantially free from carbon dioxide for the production of glass formulas, comprising: mixing stoichiometric amounts of substances containing molecular systems of silica-sodium, silica-sodium-calcium, silica-sodium-magnesium, silica-calcium-magnesium, silica-sodium-calcium-magnesium and mixtures thereof, having reaction temperatures which do not form a liquid phase, which are selected from invariant points or from points on a line connecting invariant points of phase diagrams of said molecular systems, to complete a desired molecular glass formula.
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