Alkali resistant, synthetic, mineral fibres
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United States of America Patent
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Jun 3, 1980
Grant Date -
N/A
app pub date -
Dec 28, 1978
filing date -
Jan 2, 1978
priority date (Note) -
Expired
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Abstract
Alkali resistant, synthetic, mineral fibres having the following composition on weight basis: SiO.sub.2 : 42-50%, Al.sub.2 O.sub.3 : 8-13%, Iron oxides (calculated as FeO): 6-11%, CaO: 4-11%, MgO: 17-22%, TiO.sub.2 : 0.5-3% and alkali metal oxides: 0.5-3.5%.
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