Patent ID: 7959723

Claim:
A method of protecting wood, comprising the step of treating wood with a composition comprising: (a) at least one biocide, (b) at least one dialkylamide, and (c) optionally, a cosolvent selected from the group consisting of fatty acid alkyl esters and N-methylpyrrolidone(NMP), wherein said dialkylamide is represented by formula (II), in which R 4 , R 5 , R 6 and R 7 independently represent C 1 -C 4 alkyl or hydroxyalkyl, and X stands for an alkylene group having 1 to 12 carbon atoms, or by formula (III), R 8 CO—NR 9 R 10 (III) in which R 8 CO stands for a hydroxysubstituted acyl moiety having 1 to 22 carbon atoms and R 9 and R 10 independently represent C 1 -C 4 alkyl or hydroxyalkyl.