Microencapsulated fungicide

Details Microencapsulated fungicide Microencapsulated fungicide

1986-11-07

1990-04-10

Lovering, Richard D.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

264 47, 42840221, A01N 2534, B01J 1302

Patent

active

049159470

ABSTRACT:
There are disclosed microcapsules containing a phytotoxic compound of the formula: ##STR1## where x is oxygen or sulfur and R is alkyl, alkoxy, alkylamino, halo, nitro or hydrogen, and the microcapsule walls comprise resinous polycondensates which are crosslinked polyurea, crosslinked polyamide or crosslinked polyamide-polyurea wherein the degree of crosslinking is about 25-100%, the walls are about 10 to about 30% of the total weight of the microcapsules, and the microcapsules have an average size ranging from about 7 to about 25 microns in diameter.

REFERENCES:
patent: 3577515 (1971-05-01), Vandegaer
patent: 4000290 (1976-12-01), Itzerott
patent: 4155741 (1979-05-01), Scher et al.
patent: 4479961 (1984-10-01), Martin
patent: 4640709 (1987-02-01), Beestman
R. C. Koestler: "A Theory of Mechanism of Action of Encapsulated Herbicides and Insecticides", 3rd International Controlled Release Pesticide Symposium, Sep. 1976.

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