High strength ceramic fiber board
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United States of America Patent
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Dec 28, 1993
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N/A
app pub date -
Nov 12, 1991
filing date -
Nov 12, 1991
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Abstract
A high strength ceramic fiber board having a green strength of at least 300 psi and a green density of less than about 22 lb/ft.sup.3 ; and having a composition comprising 65-97.5% wt. ceramic fiber, 1-10% wt. PVA fiber, 0.5-10% wt. cationic starch, 0-25% wt. clay filler and 1.0-15% wt. colloidal silica.
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