Method of treating wood
AssigneeMetsäliitto Osuuskunta
InventorAntti Korpela
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Abstract
A method of protecting wood. According to the method, an aqueous dispersion of alkyl ketene dimer is applied onto the surface of the wood. By means of this treatment, the surface becomes hydrophobic and the contact angle of water in the form of drops on the treated wooden surface exceeds 100°. Such drop-shaped water does not penetrate into the treated surface, nor into for instance a crosscut end of sawn timber. Instead, the water disappears from the surfaces by evaporation.
Claims20
A method of protecting a sawn wood product, comprising the step of applying an aqueous dispersion consisting essentially of alkyl ketene dimer onto an untreated surface of the sawn wood product in order to improve water repellency thereof.
A sawn wood product, consisting essentially of
- a piece of sawn wood having an untreated surface which has not been treated against the harmful effects of microorganisms;
- an alkyl ketene dimer coating on the untreated surface;
- wherein alkyl ketene dimer is deposited on the untreated surface in an amount of 0.5-30 g/m2.
Dependencies are inferred from the claim text.