Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1997-12-04
1999-07-20
Levy, Neil S.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424405, 424406, 424407, 424419, 424420, 4241951, 424DIG10, 514649, A01N 2528
Patent
active
059253703
ABSTRACT:
A biorepellent matrix structure comprises a resin and first and second micapsules suspended in the resin. The first and second microcapsules each includes a first shell and a second shell, respectively, containing a biorepellent material that is released upon penetration of any of the first and second shells, as for example, by a biological organism. The biorepellent material, such as capsaicin, diffuses through the first and second shells at different rates. The different diffusion rates of the biorepellent material together provide a biorepellant matrix structure that exhibits long term protection against the formation of biological organisms that would otherwise accumulate on the matrix structure, and deters organisms from gnawing or chewing the matrix structure.
REFERENCES:
patent: 5322862 (1994-06-01), Kurata et al.
patent: 5698209 (1997-12-01), Shono et al.
Bullat David M.
Vasishtha Niraj
Fendelman Harvey
Kagan Michael A.
Levy Neil S.
Lipovsky Peter A.
The United States of America as represented by the Secretary of
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