Pesticide compositions
AssigneeRohm and Haas Company
InventorsRobert Howard Gore, Ronald Joseph Kopko, Warren Harvey Machleder, William Dean Mathis, Bridget Marie Stevens, Yan Sun
Life of this patent
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Abstract
The present invention relates to pesticide compositions in which at least one of the components of the composition is a polymeric material which reduces the rate of crystallization of the pesticide active ingredient in the composition. This invention also provides a method for reducing the rate of crystallization of pesticide active ingredients and a method for controlling pests comprising applying to the pest the polymer-containing composition.
Claims10
A composition consisting essentially of:
- a) one or more pesticides;
- and
- b) a pesticide crystallization inhibiting effective amount of one or more oil-soluble polymers having a molecular weight of from 10,000 to 2,000,000 atomic mnass units and a solubility parameter of 6.9 to 9.0 selected from the group consisting of;
- 1) polymers with lipophilic character, and
- 2) polymers with both lipopliilic and hydrophilic character;
- wherein the lipophlic charactor of the polymer is derived from monomer units with hydrocarbon groups containing an average of from 8 to 24 carbon atoms selected from the group consisting of:
- i) substituted or unsubstituted (C.sub.1 -C.sub.24)alkyl esters of one or more monoethylenically unsaturated monomers selected from the group consisting of acrylic, methacrylic, fumaric, maleic, and itaconic acids;
- ii) substituted or unsubstituted (C.sub.1 -C.sub.24)alkyl amides of one or more monoethylenically unsaturated monomers selected from the group consisting of acrylic, methacrylic, fumaric, maleic, and itaconic acids;
- iii) .alpha.-olefins;
- and
- iv) vinyl alcohol esters, vinyl halides, vinyl nitriles, and vinyl carboxylates;
- and
- wherein each pesticide is soluble in at least one selected from the group consisting of;
- 1) the monomers which make up the polymer;
- 2) oligomers of approximately the same proportional monomer unit composition as the polymer;
- 3) the polymer, and
- 4) a solution of the polymer and an organic solvent;
- field wherein.
A method for reducing the rate of crystallization of a pesticide, comprising effectively homogeneously admixing the pesticide with a pesticide crystallization inhibiting effective amount of one or more oil-soluble polymers having a molecular weight of from 10,000 to 2,000,000 atomic mass units and a solubility parameter of 6.9 to 9.0 selected from the group consisting of;
- 1) polymers with lipophilic character, and
- 2) polymers with both lipophilic and hydrophilic character;
- wherein the lipophilic character of the polymer is derived from monomer units with hydrocarbon groups containing an average of from 8 to 24 carbon atoms selected from the group (consisting of:
- i) substituted or unsubstituted (C.sub.1 -C.sub.24)alkyl esters of one or more monoethylenically unsaturated monomers selected from the group consisting of acrylic, methacrylic, fumaric, maleic, and itaconic acids;
- ii) substituted or unsubstituted (C.sub.1 -C.sub.24)alkyl amides of one or more monoethylenically unsaturated monomers selected from the group consisting of acrylic, methacrylic, fumaric, maleic, and itaconic acids;
- iii) .alpha.-olefins;
- and
- iv) vinyl alcohol esters, vinyl halides, vinyl nitrites, and vinyl carboxylates;
- and
- wherein each pesticide is soluble in at least one selected from the group consisting of;
- 1) the monomers which make up the polymer;
- 2) oligomers of approximately the same proportional monomer unit composition as the polymer,
- 3) the polymer, and
- 4) a solution of the polymer and an organic solvent;
- and
- wherein there is a high interaction between the pesticides and the polymer.
Dependencies are inferred from the claim text.