Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1988-07-06
1989-12-26
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424405, 424409, A01N 2534
Patent
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.
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patent: 4557755 (1985-12-01), Takabashi et al.
patent: 4652574 (1987-03-01), Kato et al.
Kasamatsu Kiyoshi
Manabe Yukio
Ohtsubo Toshiro
Takeda Hisami
Tsuda Shigenori
Page Thurman K.
Prater P. L.
Sumitomo Chemical Company Ltd.
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