Method of treating wood

US8771551B2 · kind B2 · utility

Assignee

• Metsäliitto Osuuskunta · FI

Inventor

• Antti Korpela · Kairokoski, FI

Key dates

• Filing date: Jun 5, 2009
• Grant date: Jul 8, 2014
• Expiry date: Mar 28, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B27K2240/70
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

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.