Wood impregnation
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United States of America Patent
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-
Aug 21, 1984
Grant Date -
N/A
app pub date -
Jun 16, 1982
filing date -
Jun 16, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Water-borne preservative salts are used to impregnate wood by the empty-cell pressure impregnation method without the precipitation of water-borne salts such as chromium, copper and arsenic when wood sugars enter the treating solution during the kickback or pressure release phase of the empty-cell cycle. The lack of precipitation is obtained by maintaining the preservative salts solution at a temperature between about 40.degree. F. and about 70.degree. F.
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Cited Art Landscape
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