Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1990-11-15
1991-11-05
Moezie, F. T.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424 78, 424DIG10, 424455, 514764, 514765, 514766, A01N 2534
Patent
active
050630598
ABSTRACT:
Microencapsulated pyrethroidal cockroach-controlling composition is provided, which has an excellent residual effect. The composition comprises phenylxylylethane and a pyrethroidal compound and is encapsulated in microcapsules formed of a polyurethane wall which have an average particle diameter of not more than 80 .mu.m, a wall thickness of not more than 0.3 .mu.m, and a value of the average particle diameter/wall thickness of 100-400.
REFERENCES:
patent: 4670246 (1987-06-01), Dahl et al.
CA 99(25):208147e, Sumitomo Chem. Co., Polyurethane encapsulated organophosphorus, 1983.
CA 85(25):187799m, Barber, Insecticidal comp. in microcapsule form, 1975.
CA 91(11):85299f, Fuyama, Slow releasing pyrethriod insecticide, 1979.
Chemical Abstracts, vol. 91, No. 11, 10th Sep. 1979, p. 237, Abstract No. 85120r, Columbus Ohio, US, "Evaulation of encapsulated . . . ".
Chemical Patents Index, Basic Abstracts Journal, section C, week B24, 8th Aug. 1979, abstract no. 44920B/24, Derwent Publications Ltd. London.
Kawada Hitoshi
Ohtsubo Toshiro
Shinjo Goro
Tsuda Shigenori
Tsuji Kozo
Moezie F. T.
Sumitomo Chemical Co,. Ltd.
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