Nonflammable paper
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United States of America Patent
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Oct 25, 1988
Issued Date -
N/A
app pub date -
Dec 15, 1987
filing date -
Jul 26, 1985
priority date (Note) -
Expired
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Abstract
A nonflammable paper having a sufficient yield at the time of paper-making and a sufficient non-combustibility and strength even in a basis weight as low as 100 g/m.sup.2 or less is provided, which paper is obtained by dispersing in water a composition comprising 40 to 95% by weight of calcium silicate in the form of needle, plate, thin film or a secondary aggregate thereof, and aluminum hydroxide powder, in a specified ratio by weight, 5 to 30% by weight of cellulose fibers and 0 to 30% by weight of other additives, the total weight of these components being 100% by weight, followed by subjecting the dispersion to paper-making.
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