Microencapsulated organophosphorus insecticidal composition for

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants

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424405, 424409, A01N 2534

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active

048897191

ABSTRACT:
A microencapsulated insecticidal composition has excellent residual effect which comprises an organophosphorus insecticide encapsulated in a wall formed of a polyurea and having an average particle diameter of not more than 80 .mu.m, a wall thickness of not more than 0.3 .mu.m and a ratio of an average particle diameter/wall thickness of not less than 250.

REFERENCES:
patent: 3429827 (1969-02-01), Raas
patent: 4219570 (1980-08-01), Inazuka et al.
patent: 4285720 (1981-08-01), Scher
patent: 4460722 (1984-07-01), Igarashi et al.
patent: 4557755 (1985-12-01), Takabashi et al.
patent: 4652574 (1987-03-01), Kato et al.

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