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US 2020/0398455 A1Published application
Treatment of wood with aldehyde and isocyanate
AssigneeHeartwood Sustainable Industries (Pty) Ltd
InventorsGoddeti Siva Mohan Reddy, Steven Chiuta, Tebogo Ankie Khoza
Life of this patent
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Abstract
A method of treating wood includes subjecting the wood to a vacuum environment, and thereafter contacting the wood under positive pressure with an aldehyde and an isocyanate, both the aldehyde and the isocyanate being in liquid form.
Claims15
A method of treating wood, the method including
- subjecting the wood to a vacuum environment;
- and
- thereafter, contacting the wood under positive pressure for a period no more than 60 minutes with glyoxal and diphenylmethane-4,4′-diisocyanate, both the glyoxal and the diphenylmethane-4,4′-diisocyanate being in liquid form.
Dependencies are inferred from the claim text.