摘要:
A product comprising microcapsules which themselves comprise (a) a polymeric shell; and (b) a core comprising an agrochemical which has a melting point greater than or equal to 25° C. characterised in that the agrochemical is dispersed as a solid in a hydrophobic material which has a melting point greater than or equal to 25° C. but which does not exhibit a glass transition temperature.
摘要:
An encapsulated composition of (a) a pesticide at least active via ingestion that is photolabile, and (b) at least one photoprotectant, wherein the encapsulating polymeric barrier is base triggerable is disclosed. A method for controlling damage of a material by a pest by the use of such encapsulated compositions is likewise disclosed. The composition as disclosed gives protection for beneficial arthropods and reduces workers exposure.
摘要:
A novel microcapsule comprising an encapsulated material which is enclosed within a solid permeable shell of a polymer resin having surface modifying compounds capable of reacting with isocyanate incorporated therein is disclosed. The process for producing such microcapsules is likewise disclosed.
摘要:
An encapsulated composition of (a) a pesticide at least active via ingestion that is photolabile, and (b) at least one photoprotectant, wherein the encapsulating polymeric barrier is base triggerable is disclosed. A method for controlling damage of a material by a pest by the use of such encapsulated compositions is likewise disclosed. The composition as disclosed gives protection for beneficial arthropods and reduces workers exposure.
摘要:
A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colorable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive color changing composition within a barrier layer which is substantially impermeable to the components of the color changing composition or are solid particles comprising an immobilized photosensitive color changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the color of the particles.
摘要:
A pesticidal coating composition is provided which comprises an aqueous dispersion of at least one film-forming binder and at least one microencapsulated pesticide; wherein a coating prepared from such composition is substantially water-impermeable upon curing. The present invention further provides methods of coating substrates with the pesticidal coating composition, as well as substrates coated with the composition. The pesticidal coating compositions of the invention can be applied to substrates by professionals or non-professionals by spraying, painting, rolling, or brushing, before, during, or after construction.
摘要:
Solid water-dispersible compositions containing microencapsulated pesticides are produced by spray-drying an aqueous suspension of said pesticides in the presence of a water-soluble polymer.
摘要:
A pesticidal coating composition is provided which comprises an aqueous dispersion of at least one film-forming binder and at least one microencapsulated pesticide; wherein a coating prepared from such composition is substantially water-impermeable upon curing. The present invention further provides methods of coating substrates with the pesticidal coating composition, as well as substrates coated with the composition. The pesticidal coating compositions of the invention can be applied to substrates by professionals or non-professionals by spraying, painting, rolling, or brushing, before, during, or after construction.
摘要:
A dispersion comprising a discontinuous phase of solid particles or liquid droplets in a liquid continuous phase; a polymeric dispersant having a segment soluble in the continuous phase and a segment insoluble in the continuous phase; and a network around the solid particles or liquid droplets of the discontinuous phase formed by cross-linking of the polymeric dispersant; where the cross-linking is between segments that are soluble in the continuous phase.
摘要:
Microcapsules formed from an aminoplast shell wall and an encapsulated ingredient or ingredients enclosed within the wall in which the wall contains a base-cleavable ester moiety. These capsules have been found to be sensitive to the presence of base such that in the presence of base, the capsule walls are relatively quickly disintegrated or degraded so as to produce a relatively quick release of the encapsulated materials. Microcapsules of this invention are particularly suitable for use in controlling insects having an alkaline gut such as certain lepidoptera in that the capsule shell wall may be designed so as to quickly disintegrate under the alkaline conditions present in the gut of the insect thus providing a microcapsule which is safe to handle but which is selectively effective against certain undesirable insects while not harmful to beneficial insects or insects which do not feed on the capsule materials.