Stable concentrates and emulsions of water-insoluble organic pes

Details Stable concentrates and emulsions of water-insoluble organic pes Stable concentrates and emulsions of water-insoluble organic pes

1989-08-30

1992-02-18

Lee, Lester L.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

424405, 424407, 424419, 523122, A61K 3174, A61K 3178, A01N 2700, A01N 2900

Patent

active

050892592

ABSTRACT:
Stable, aqueous emulsion formulations of water-insoluble organic pesticides are formed from a mixture of (1) a water-insoluble organic pesticide, (2) a water based structured particle latex containing nonionic particles to which is bound a layer containing stabilizing pH independent ionic groups chemically bound at or near the surface of the polymer particles, and optionally a cosolvent and/or cosurfactant for the pesticide. The resulting product is much more stable to coalescence than emulsions made with conventional surfactants.

REFERENCES:
patent: 3400093 (1968-09-01), Feinberg
patent: 4036788 (1977-07-01), Steckler
patent: 4199363 (1980-04-01), Chen
patent: 4203716 (1980-05-01), Chen
patent: 4303642 (1981-12-01), Kangas
patent: 4337185 (1982-06-01), Wessling
patent: 4427819 (1984-01-01), Wessling et al.
Rogiers et al., "Novel Trends in Dispersants", Sixth International Congress of Pesticidal Chemistry, Ottawa, Canada, Aug. 10-15, 1986.

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