Molluscicidal water distribution system components

Details Molluscicidal water distribution system components Molluscicidal water distribution system components

1991-11-08

1993-07-20

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

424406, 424486, 5147724, 523122, A01N 2534, C08L 2306

Patent

active

052291251

ABSTRACT:
A polymer resin-molluscicidal composite for preventing and controlling damage to water distribution systems caused by Dreissena polymorpha, the zebra mussel, and other undesirable sessile mollusks is provided. The composite is preferably formed of an ultra-high molecular weight polyethylene and 0.1 to 20 weight percent of a water insoluble, high melting point molluscicide which is preferably a metal salt or complex of an organic sulfur compound. Alkyldithiocarbamates, tetraalkylthiuram sulfides and the metal salts and complexes thereof are preferred molluscicides. The molluscicidal composite may be formed into structural components, such as valves, or into linings, coatings and encapsulators.

REFERENCES:
patent: 2875834 (1959-03-01), Shumard
patent: 3143460 (1964-08-01), Pearce
patent: 3417181 (1968-12-01), Cardarelli
patent: 3857934 (1974-12-01), Bernstein et al.
patent: 4324784 (1982-04-01), Naito et al.
patent: 4918147 (1990-04-01), Yamamori et al.
patent: 5062967 (1991-11-01), Muia et al.
patent: 5096601 (1992-03-01), Muia et al.

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