Controlled release microcapsules

Details Controlled release microcapsules Controlled release microcapsules

1992-03-27

1994-03-08

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

424405, 424418, 514774, 514963, A01N 2528

Patent

active

052925331

ABSTRACT:
Microcapsules are prepared by encapsulating a core material with a capsule shell wall containing glutamldehyde crosslinked gelatin and at least one water soluble plasticizer that reduces the permeability of the Crosslinked gelatin. Optionally, the capsule shell wall also contains a feeding deterrent that dissuades accidental ingestion of the microcapsule. Upon exposing the microcapsules to water, the plasticizer is removed malting the shell wall permeable whereby the encapsulated core material is released. Materials such as insecticides, herbicides, plant growth regulating agents, and fungicides may be encapsulated and released at a controlled location, time and rate.

REFERENCES:
patent: 3872024 (1975-03-01), Horger
patent: 3886084 (1975-05-01), Vassiliades
patent: 3956172 (1976-05-01), Sacki et al.
patent: 4082688 (1978-04-01), Egawa et al.
patent: 4251195 (1981-02-01), Suzuki et al.
patent: 4269729 (1981-05-01), Maruyama et al.
patent: 4273672 (1981-06-01), Vassiliades
patent: 4303548 (1981-12-01), Shimazaki et al.
patent: 4376113 (1983-03-01), Suglia et al.
patent: 4394287 (1983-07-01), Scarpelli
patent: 4402856 (1983-09-01), Schnoring et al.
patent: 4460563 (1984-07-01), Calanchi
patent: 4460722 (1984-07-01), Igarashi et al.
patent: 4481157 (1984-11-01), Morishita et al.
patent: 4696822 (1987-09-01), Matsumura et al.
patent: 4808408 (1989-02-01), Baker et al.
patent: 4946624 (1990-08-01), Michael
Usher, B. F., et al., "Oral Dosing of Insects with Feeding Deterent Compounds", Entomologia Experimentalsis et Applicata, 52(2) 1989 pp. 119-134, (Abstract provided).

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