Wood impregnation

Details Wood impregnation Wood impregnation

1982-06-16

1984-08-21

Lusignan, Michael R.

Coating processes

Vacuum utilized prior to or during coating

Organic base

427351, 427440, B05D 118, B05D 312

Patent

active

044669984

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.

REFERENCES:
patent: 2799597 (1957-07-01), Walker et al.
patent: 2909450 (1959-10-01), Goldstein
patent: 3200003 (1965-08-01), Bescher

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