Water-based microemulsions of a triazole fungicide

Details Water-based microemulsions of a triazole fungicide Water-based microemulsions of a triazole fungicide

1992-10-22

1994-07-05

Cintins, Marianne M.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer derived solely from...

514383, 514937, 514938, 514942, A01N 2500, A01N 4364

Patent

active

053267893

ABSTRACT:
Clear, stable, efficacious, aqueous microemulsions of an active triazole fungicide, e.g. penconazole, optionally with another agriculturally active chemical, are provided herein. The aqueous microemulsions are obtained by providing an inert matrix composition comprising a defined mixture of nonionic surfactants, including a C.sub.6 -C.sub.18 alkylpyrrolidone, e.g. octylpyrrolidone, an alkylphenol ethoxylated alcohol having an HLB.gtoreq.6, preferably 10-20, e.g. nonylphenol ethoxylated alcohol with 9 EOs, and an anionic surfactant selected from a salt of dodecyl sulfate, dodecylbenzene sulfonate, dodecyltoluene sulfonate and lignin sulfonate, preferably sodium dodecyl sulfate, and water, optionally with a C.sub.1 -C.sub.4 alkylpyrrolidone, e.g. N-methylpyrrolidone, and water. The inert matrix composition is admixed with a triazole fungicide, present in a C.sub.1 -C.sub.4 alkylpyrrolidone, if not already present in the inert matrix composition, to form a microemulsion concentrate. Upon dilution with water, a stable, aqueous microemulsion is formed characterized by having a high loading of triazole fungicide e.g. 1-25% (before dilution), preferably about 14%.

REFERENCES:
patent: 4840663 (1989-06-01), Quadranti et al.

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