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US 7,740,906 B2Granted
Wood preservatives
AssigneeRohm and Haas Company
InventorsJohn William Ashmore, Tirthankar Ghosh, Jose Pineda Lalas
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Abstract
A method for preserving wood by contacting wood with a composition comprising an aqueous polymer dispersion, at least one surfactant, and a wood preservative.
Claims5
A method for preserving wood;
- said method comprising contacting wood with a composition comprising:
- (a) an aqueous styrene-acrylic polymer emulsion having an average particle size less than 1000 nm, in which the polymer has a Tg no greater than 39° C.;
- (b) at least one surfactant selected from among nonionic and anionic surfactants;
- and
- (c) at least one wood preservative selected from among halogenated isothiazolone biocides, halogenated carbamate fungicides and azole fungicides.
2 more elements
Dependencies are inferred from the claim text.