Cyclopropene compositions
Stabilized liquid cyclopropane compositions are provided which compromise flowable, non-aqueous dispersion concentrates comprising a) a continuous substantially water-immiscible liquid phase and b) a dispersed solid phase comprising cured polymer particles prepared from a polymerizable thermoset resin which particles contain at least one cylcopropene complex, optionally a non-porous particulate mineral, and optionally a non-cross-linkable mobile chemical distributed therein, and wherein the outside surfaces of the particles comprise a colloidal solid material. The compositions of the invention can be used directly or with dilution to combat pests or as plant growth regulators.
1. A polymer particle, comprising:
a body formed from a curable or polymerizable thermoset epoxy;
a complex of α-cyclodextrin and 1-methylcyclopropene dispersed within the body; and
a colloidal solid emulsion stabilizer on the body.
2. The polymer particle of claim 1 , further comprising at least one non-cross-linkable mobile chemical such that the extraction of this chemical from the polymer particle renders the polymer particle porous in a manner that allows the 1-methylcyclopropenediffuse out at a controlled rate.
3. The polymer particle of claim 1 , wherein the colloidal solid emulsion stabilizer is an inorganic material.
4. The polymer particle of claim 1 , wherein the curable or polymerizable thermoset epoxy comprises bisphenol A epoxy resin.
5. The polymer particle of claim 1 , wherein the curable or polymerizable thermoset epoxy comprises phenolic resin.
6. The polymer particle of claim 1 , wherein the curable or polymerizable thermoset epoxy comprises aminoplast resin.
7. The polymer particle of claim 1 , wherein the curable or polymerizable thermoset epoxy comprises unsaturated polyester or vinylester resin.
8. The polymer particle of claim 1 , wherein the curable or polymerizable thermoset epoxy comprises a biodegradable thermoset resin.
9. The polymer particle of claim 1 , wherein the curable or polymerizable thermoset epoxy comprises a cured epoxy resin polymer matrix prepared from curing an epoxy resin comprising di-and polyepoxide monomers, prepolymers or blends thereof with a hardener comprising primary and secondary amines and their adducts, cyanamide, dicyandiamide, polycarboxylic acids, anhydrides of polycarboxylic acids, polyamines, polyamino-amides, polyadducts of amines and polyepoxides, polyols or mixtures thereof.
10. The polymer particle of claim 1 , wherein the body has a size of 1-200 microns.