Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1996-01-25
1999-12-21
Levy, Neil S.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424405, 424409, 424417, 504101, 71 6411, 71 6413, A01N 2510
Patent
active
060045728
ABSTRACT:
A system to deliver a treating agent of interest to a surrounding environment over an extended period of time is described. The system comprises surrounding a treating agent or agents with one or more biodegradable materials. The biodegradable materials biodegrade at a rate that will slowly and continuously release the treating agent or agents of interest to the surrounding environment. An example of the method of the present invention is described for the treatment of wood supporting structures to prevent their decay and rotting in the earth. The method is particularly advantageous for treating wood supporting structures including, but not limited to: telephone poles, utility poles, pilings, railroad ties, posts, foundations and other building supports and the like.
REFERENCES:
patent: Re33670 (1991-08-01), Maglio
patent: 3773919 (1973-11-01), Boswell
patent: 4732762 (1988-03-01), Sjogren
patent: 4971796 (1990-11-01), Sjogren
patent: 4981696 (1991-01-01), Loomis et al.
patent: 5047243 (1991-09-01), Anfang et al.
patent: 5201925 (1993-04-01), Itzel et al.
patent: 5317834 (1994-06-01), Anderson
patent: 5484600 (1996-01-01), Sjogren
patent: 5518736 (1996-05-01), Magdassi et al.
patent: 5553438 (1996-09-01), Hsu
Harvan Donald J.
Pfaender Frederic K.
Calkins Charles W.
Levy Neil S.
Triangle Laboratories, Inc.
University of N.C. - Chapel Hill
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