Wood preservative composition and wood treatment method
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsKazuyuki Matsumura, Akira Yamamoto
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Abstract
A wood preservative composition comprising an aqueous preservative and 0.001-1.0 wt % of a polyether-modified silicone having a specific structure is provided. The polyether-modified silicone reduces the surface tension of the composition and helps the preservative penetrate deeply into the wood interior.
Claims7
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 R1 is each independently an alkyl, aryl, aralkyl or fluoroalkyl radical having 1 to 30 carbon atoms, R2 is a polyoxyalkylene radical of the general formula (3):
- —CxH2xO—(C2H4O)y(C3H6O)z—R3 (3)
- wherein R3 is hydrogen, a monovalent hydrocarbon radical of 1 to 30 carbon atoms, or an organic radical of the formula:
- R4—(CO)—, R4 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.
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 formula
Dependencies are inferred from the claim text.