Method of producing a mineral fiber product
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United States of America Patent
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-
Feb 17, 1981
Grant Date -
N/A
app pub date -
Nov 30, 1976
filing date -
Jan 19, 1976
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosure relates to the production of a mineral fiber product for example to replace asbestos fibers in different products. In the method of production, at most 7% by weight of mineral fibers is dispersed in water which contains a wetting agent, undispersible material being then separated and the dispersion being then mechanically dewatered to a dry content of from 30 to 70% by weight and a fiber density of from 200 to 400 kg/m.sup.3. In a subsequent, separate stage, the fibers are redispersed in water substantially without the addition of wetting agent, are provided with possible additives such as cellulose fibers, are shaped, dewatered and dried.
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