Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1993-02-09
1995-03-07
Beck, Shrive
Coating processes
With post-treatment of coating or coating material
Heating or drying
427297, 427317, 427351, 427399, B05D 302, B05D 312, B05D 706
Patent
active
053956567
ABSTRACT:
A wood preservative composition which contains poly ethylene oxide along with poly vinyl pyrrolidone is applied to wood in a four-step process. In the first step, moisture and excess resin are removed from the wood. In the second step, the preservative composition is applied to the wood by pressure injection. In the third step, the container for the wood is drained and excess solution is transferred to a holding tank. In the fourth step, a catalyst, either heat or a low-pH composition, is applied to the wood to cause chemical bonding of the preservatives within and with the wood. As a part of the fourth step, excess moisture is removed from the wood by subjecting the wood to a vacuum to draw out excess moisture and then subjecting the wood to a flow of desiccated air which absorbs the moisture.
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Beck Shrive
Drew Michael
Dudash Diana
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