Patent ID: 7582148

Claim:
A wood preservative composition comprising an aqueous preservative and 0.001 to 1.0% by weight based on the total weight of the composition of a polyether-modified silicone having the general formula (1) and/or (2): wherein R 1 is each independently an alkyl, aryl, aralkyl or fluoroalkyl radical having 1 to 30 carbon atoms, R 2 is a polyoxyalkylene radical of the general formula (3): —C x H 2x O—(C 2 H 4 O) y (C 3 H 6 O) z —R 3 (3) wherein R 3 is hydrogen, a monovalent hydrocarbon radical of 1 to 30 carbon atoms, or an organic radical of the formula: R 4 —(CO)—, R 4 is a monovalent hydrocarbon radical of 1 to 10 carbon atoms, x is an integer of 2 to 5, y is an integer of 5 to 15, z is an integer of 0 to 10, p is an integer of 0 to 3, q is an integer of 1 to 2, and r is an integer of 0 to 6.