Rohm and Haas Company

Other

Bing Yu

John R Mattox

The invention concerns a method of protecting wood comprising the steps of (a) treating said wood with a composition consisting essentially of (i) 4,5-dichloro-2-n-octyl-3-isothiazolone and optionally one or more other preservative compounds; (ii) a surfactant system consisting of at least one surfactant selected from the group consisting of sulfated anionics, sulfonated anionics, sulfosuccinated anionics, quaternary ammonium cationics, and amphoterics; and (iii) at least one non-polar organic solvent and (b) allowing said solvent to evaporate from said wood.

Low leaching compositions for wood

The invention concerns a wood preservative composition consisting essentially of (a) 4,5-dichloro-2-n-3-isothiazolone and optionally one or more other preservative compounds; (b) a surfactant system consisting of at least one surfactant selected from the group consisting of sulfates anionics, sulfonated anionics, sulfosuccinated anionics, quaternary ammonium cationics, and amphoterics; and (c) at least one non-polar organic solvent.

Microemulsions of water-insoluble active ingredients, employing a special surfactant system and solvent system. These microemulsions remain thermodynamically stable over a wide range of water dilutions.

Fully water-dilutable microemulsions

A biocidal composition comprising a dry, water soluble mixture of a solid bromide and a stable, solid peracetylperoxyborate compound useful as a chlorine-free water treatment system, said peracetylperoxyborate composition generating hypobromous acid upon addition of water. Methods of treating water with said compositions are also disclosed.

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Horsham, PA, United States of America

Bing Yu