Appeal No. 94-2881
Application 07/790,729
The Claimed Subject Matter
The claims on appeal are directed to a water dilutable agricultural composition and process
for producing the same. The composition comprises a first dispersed aqueous phase comprising latex
particles (e.g. polystyrene) and a first agriculturally active component (e.g. allethrin, chloropyrifos,
malathion, or tridiphane) and a continuous aqueous phase or second dispersed phase comprising a
second active component which can be a pesticide or fertilizer, the second active component being
physico-chemically, chemically or biologically incompatible with the first active component. Claims
9 and 11 are illustrative of the claimed subject matter:
9. A process for producing an agricultural composition comprising at least a
first active pesticidal component, and at least one other active component which is a
second pesticidal component or a fertilizer, the other active component being physico-
chemically, chemically or biologically incompatible with the first pesticidal
component, which process comprises,
forming an emulsion comprising the first pesticidal component and a
surfactant, and combining the emulsion with a latex and the second active component
so as to form a composition having a continuous aqueous phase, and at least a first
dispersed phase, the first dispersed phase containing particles derived from the latex,
wherein the said first pesticidal component is present in the composition
substantially wholly within the said first dispersed phase, and,
wherein the said at least one other active ingredient is present in the
continuous aqueous phase or in a second dispersed phase.
11. A water dilutable agricultural pesticidal composition in the form of an
aqueous latex dispersion, which dispersion is comprised of a dispersed phase which
is comprised of latex particles derived from said latex; a continuous aqueous phase
and at least one emulsifying surfactant which is an ethoxylated alcohol, an alkoxylated
alcohol, an alkoxylated alkyl phenol, an [sic] polyaryl phenol, a half ester
sulphosuccinate or a phosphated polyglycol ether and which is compatible with the
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Last modified: November 3, 2007