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US 11,376,758 B2Granted
Treatment of wooden materials
OwnerKell Thomasinventor
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Abstract
The present invention relates to improved methods of treating wooden materials. By the method of the invention, the wooden material is subjected to vacuum, overpressure and increased temperature, and subjected to ultrasound. Ultrasound is applied while the wooden material is covered by a liquid at a suitable overpressure and at a suitable temperature for a suitable period of time.
Claims12
A method for the treatment of a wooden material, the method comprising the steps of:
- a) subjecting the wooden material to a vacuum,
- b) supplying a liquid to the wooden material, while maintaining the vacuum,
- c) subjecting the wooden material to an overpressure at a temperature between 70° C. and 220° C. at which the liquid does not reach its boiling point,
- d) subjecting the wooden material to ultrasound, while maintaining the over pressure, at a temperature between 70° C. and 220° C.
1 more element
Dependencies are inferred from the claim text.