Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1989-01-06
1990-05-08
Schofer, Joseph L.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424409, 424DIG10, 424 43, 424 45, 514918, 514919, 514939, 514531, 514938, 514521, 514718, 514731, A01N 2500, A01N 2534, A01N 2502, A61L 904
Patent
active
049236989
ABSTRACT:
A film-forming bioactive composition for control of crawling insects and the like is disclosed. Also disclosed are methods of producing and utilizing the bioactive composition. The bioactive composition comprises a water-in-oil emulsion, a bioactive ingredient dispersed throughout the emulsion, and a lubricating agent also dispersed throughout the emulsion. The water-in-oil emulsion comprises a continuous phase, an aqueous discontinuous phase, and an emulsifier system for dispersing the discontinuous phase throughout the continuous phase. The bioactive composition of the present invention is characterized in that after particles of the instant bioactive composition have been applied to a surface, a substantial portion of the continuous and discontinuous phases will evaporate over time, leaving a residual film on the surface. Such film comprises the emulsifier system, the bioactive ingredient, and the lubricating agent. The film not only effectively and substantially adheres to the surface for an extended period of time while retaining a high degree of residuality, but the surface-applied bioactive ingredient-containing residue is itself sufficiently slippery to pests such as crawling insects and the like, thereby providing a substantial and effective positive barrier for controlling crawling pests of this type.
REFERENCES:
patent: 3303091 (1967-02-01), Marlander et al.
patent: 4439342 (1984-03-01), Albanese
Pili-Curtis Carmen
S. C. Johnson & Son Inc.
Schofer Joseph L.
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