Emulsion for protecting timber (e.g. green timber) or timber materials against attack by wood-destroying or wood-discoloring microorganisms contains mixture of tebuconazole and propiconazole and phenol/styrene polyglycol ether derivative

摘要

Emulsion of an aqueous or an aqueous-organic continuous phase and an organic discontinuous phase, the latter containing: (a) tebuconazole and propiconazole; (b) one phenol/styrene polyglycol ether (I); and optionally (c) an organic solvent immiscible with water, is new. An emulsion consists of an aqueous or aqueous-organic continuous phase and an organic discontinuous phase. The organic discontinuous phase comprises: (a) mixture of active compounds tebuconazole and propiconazole; (b) phenol/styrene polyglycol ether of formula (I); and optionally (c) water-immiscible organic solvent. where the mixture of tebuconazole and propiconazole (a) is dissolved completely in (b) or (b) and (c) with a content of 0.1, preferably 1, particularly 10 wt.% at 20 deg C based on the total weight of the organic phase. m = 2.7; n = 2-13 (preferably 10). An Independent claim is included for preparation of the emulsion by dissolving tebuconazole and propiconazole in water with concomitant use of water-immiscible organic solvent at 20-200 deg C, optionally filtering the solution while hot, emulsifying the resulting solution into aqueous or aqueous-organic phase, and cooling the resulting emulsion to 10-70 (preferably less than 60) deg C followed by optional filtration.