Patent ID: 6180672
Filing Date: 2001-01-30
Classification: A01N,B27K,C07C,Y10S

Abstract:
A wood preservative having biocidal properties, comprising, in aqueous solution, at least one quaternary ammonium compound of the formula: ##STR3##wherein R.sup.1 is a C.sub.8-18 -alkyl group or an optionally substituted benzyl group, R.sup.2 is a C.sub.1-4 alkyl group, R.sup.3 is a C.sub.1-4 -alkyl group or a group of the formula --[CH.sub.2 --CH.sub.2 --O].sub.n --H, R.sup.4 is a C.sub.1-4 -alkyl group, n is a number from 0.5 to 8, and A.sup.- is the anion of an organic monocarboxylic acid which contains 2 to 12 C atoms and carries at least one hydroxyl, amino or sulfonic acid group, and one or more other biocide comprising at least one copper compound and/or zinc compound and/or one or more auxiliaries from the group consisting of defoamers, antioxidants, dyestuffs or fragrances, and, if appropriate, one or more water-miscible organic solvents.