Method of manufacturing improved mineral board
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United States of America Patent
Stats
-
Oct 27, 1981
Issued Date -
N/A
app pub date -
Oct 17, 1979
filing date -
Dec 7, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of producing an improved mineral board and the resulting product are disclosed. According to the present invention, the board is predominantly composed of perlite and a binder therefor, preferably urea-formaldehyde resin. The perlite is crushed after the composition is in its final shape but before the binder is set whereby its strength is substantially increased. The composition and process of making the board substantially reduce energy costs as compared to known methods for making wet-process mineral boards. The product composition may include up to 95% perlite by weight.
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- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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