Patent ID: 6335027
Filing Date: 2002-01-01
Classification: A01N,Y10S,Y10T

Abstract:
An article of manufacture consisting essentially of a porous, degradable or soluble container having therein a composition of matter consisting essentially of a complex for treating a population of one or more aquatic organisms in a column of water, said complex consisting essentially of at least one controlled delivery system wherein said controlled delivery system consists essentially of an admixture of at least one carrier component, at least one bioactive agent as a component selected for treating a population of one or more aquatic organisms and at least one organic plasticizer coating component for regulating the controlled release rate and release profile of said bioactive agent, said components being selected to sink or float so that said complex will permeate and remain in any planar or volumetric segment of a water column for a period of time sufficient to effectively treat a population of one or more aquatic organisms wherein said carrier consists essentially of from about 50% to about 99% by weight of silicas, cellulose fibers, metal oxides, clays, infusorial earth, slag, lava, paper, hydrophobic wood pin chips, vermiculite, cork, corn cobs, bagasse, seeds, seed hulls, carbon materials, starches, modified starches, carrageenan, algin, xanthates, agar, fluorinated polymeric materials, plaster, gypsum, cement, concrete, asphalt, wood, fiber glass, glass, metals, metal alloys, clothing fabrics, mineral aggregate, leather, natural fibers, synthetic fibers, liposomes, lipospheres, or food proteins and combinations thereof, an optional joint-function carrier/coating which is a polyvinyl alcohol polymer, polyethylene oxide, hydroxpropyl methyl cellulose, cetyl alcohol, stearyl alcohol, and combinations thereof where said bioactive agent is present in an amount from about 0.0001% to about 50% by weight and are insecticides, toxicants, monomolecular surface films, petroleum oils, insect growth regulators, plant growth regulators, animal growth regulators, microbial control agents, medicaments, antibiotics, pathogens, parasites, bactericides, viricides, fungicides, algaecides, herbicides, nematicides, amoebicides, miticides, acaricides, predicides, schistisomicides, molluscicides, larvicides, pupicides, ovicides, adulticides, nymphicides, attractants, repellents, growth stimulants, feeding stimulants, nutrients, hormones, chemosterilants, pheromones, fragrances, flavorants, food additives and combinations thereof, from about 1.0% to about 50% by weight of said organic plasticizer coating component wherein said organic plasticizer is water soluble or biodegradable or erodible, for regulating the controlled release rate and release profile of said bioactive agent where said plasticizer is acetate, adipate, azeleate, benzoate, caprylamide, capramide, caprate, citrate, cocoate, fumarate, glutarate, glycolate, heptanoate, isobutyrate, isophthalate, laurate, linoleate, maleate, mellitate, myristate, octanoate, oleate, palmitate, pelargonate, phosphate, phthalate, ricinoleate, sebacate, stearate, succinate, toluate, tallate, decanoate, or epoxidized vegetable oils, a toluamide or chlorinated paraffins, for regulating the controlled release rate and release profile of said bioactive agent, said components being selected so that said complex will remain in an application site for a period of time sufficient to effectively treat a population of one or more terrestrial organisms, and wherein said composition is free of superabsorbent polymers.