| 摘要 |
Wood is coated or impregnated with a silicone emulsion composition comprising (A) an organopolysiloxane having at least two silicon-bonded hydroxyl groups, (B) the reaction product of an amino-containing organoalkoxysilane and an acid anhydride, and optionally, (C) an epoxy-containing organoalkoxysilane and/or a partial hydrolyzate thereof, (D) colloidal silica and/or polysilsesquioxane, and (E) a curing catalyst, components (A) to (E) being emulsified and dispersed in water in the presence of a surfactant. The modified wood prevents water absorption, has dimensional stability and when previously impregnated with chemicals, is effective for preventing the chemicals from being leached out.
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