Accelerated fixing of chromate-containing wood preservative salts
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United States of America Patent
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-
Dec 29, 1987
Grant Date -
N/A
app pub date -
Mar 12, 1986
filing date -
Mar 22, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Accelerated fixing of chromate-containing wood preservative salts, in which freshly impregnated timbers are subjected to fixing with superheated steam, is carried out by a process wherein the freshly impregnated timbers are subjected beforehand to a heat treatment in which both the wood surface and the internal walls of the heating chamber are heated to 60.degree.-100.degree. C., preferably 80.degree.-95.degree. C., and the timbers are then treated with superheated steam in a conventional manner.
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