Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2001-05-04
2003-04-01
Pryor, Alton (Department: 1616)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S472000
Reexamination Certificate
active
06541512
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to methods of preventing pest feed harm on a fibrous product and compositions preventing pest feed harm on a fibrous product.
BACKGROUND OF THE INVENTION
It is known that certain pests, such as the larvae of pests, feed on fibrous products, leaving pest feed harm on the fibrous product. In enclosed storage spaces of dress cabinets, empenthrin has been heretofore well utilized to maintain for an extended amount of time a pesticidal and pest repellent effect. To provide the pesticidal and pest repellent effect, empenthrin is usually set at the targeted area and allowed to continuously vaporize. Such a pest repellency effect typically allows empenthrin to be utilized to prevent pest feed harm on fibrous materials kept in small and enclosed storage spaces. It has been conventional rule of thumb that a compound necessitates a pest repellency effect to sufficiently prevent the pest feed harm on fibrous materials.
In utilizing empenthrin in a larger storage space, empenthrin has been inefficient in that a large amount of empenthrin is needed to sufficiently prevent pest feed harm on the fibrous products. A compound that efficiently prevents the pest feed harm in such larger storage spaces would be useful. This is particularly so, since it is becoming more popular to store fibrous products in larger storing places such as in walk-in closets or in a somewhat wide-open space such as in directly hanging clothes in a room.
Such inefficiencies also generally disqualify empenthrin as an effective compound preventing the pest feed harm on fibrous products, when the fibrous products include furnishings such as carpet, floor rugs and the like. The furnishings are generally placed in wide-open spaces in which a large amount of empenthrin is needed to prevent the pest feed harm thereon. It would be useful to provide an efficient compound that can prevent the pest feed harm in such wide-open spaces.
U.S. Pat. No. 5,532,365 describes the compound 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine as having a pesticidal controlling effect directed to various pests. JP-10-139604A describes that because 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine has no pest repellency effect, 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine can completely exterminate insanitary pests such as mosquitoes, house flies, cockroaches and the like.
SUMMARY OF THE INVENTION
The present invention provides methods of preventing pest feed harm on a fibrous product and compositions preventing pest feed harm on a fibrous product. The methods comprise applying to a fibrous product, an effective amount of 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine. The compositions comprise a carrier and as an active ingredient 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine. The present invention also provides uses of 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine for preventing pest feed harm on a fibrous product.
DETAILED DESCRIPTION OF THE INVENTION
The methods and compositions of the present invention can efficiently prevent pest feed harm on a fibrous product, when the fibrous product is in an enclosed storage space, in a large storage space or in a wide-open space. In efficiently preventing pest feed harm on the fibrous product, the methods and compositions of the present invention typically achieve a prevention of the pest feed harm continuously over an extended period. Further, the methods and compositions of the present invention avoid causing discomfort to humans or animal, when the human or the animal is extensively in contact with the treated fibrous product. When applied to the fibrous material, 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine can also be innocuously supported on the fibrous material.
In the present method, 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine can be applied to the fibrous product as is, but can also be formulated into a composition and then applied to then fibrous product. When formulated into a composition, 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine is typically formulated with an a solid carrier, a liquid carrier, adjuvant or the like. Such compositions may contain 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine at an amount of about 0.005 to 50% by weight, but is not limited thereto since the effective amount of 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine therein may vary with the specific composition form thereof or the specific method employed to prevent pest feed harm.
As such compositions, for example, there can be mentioned liquid compositions such as emulsifiable concentrates, oily compositions and suspensions; wettable powders, microencapsulated compositions, foamy compositions, aerosols and the like.
Such formulations can be formulated with conventional techniques, for example, by mixing 1-methyl-2-nitro-3-[(3-tetrahydrofuryl)methyl]guanidine with the solid carrier or liquid carrier. If needed, there may be mixed therewith an adjuvant such as an emulsifier, sticking agent and the like.
As examples of the carrier, the following are mentioned. As the solid carrier, for example, there is mentioned naturally-occurring or synthetic minerals, such as clays, kaolin, talc, bentonite, sericite, quartz, sulfur, active carbon, calcium carbonate, diatomaceous earth, pumice, calcite, meerschaum, dolomite, silica, alumina, vermiculite and pearlite; fine granules such as sawdust, corncob, coconut shell and tobacco foliage; gelatin; vaseline; methylcellulose; lanolin; lard; cyclodextrin and the like. As liquid carriers, for example, there is mentioned aromatic or aliphatic hydrocarbons such as xylene, toluene, alkylnaphthalene, phenylxylylethane, kerosene, gas oils, hexane and cyclohexane; halogenated hydrocarbons such as chlorobenzene, dichloromethane, dichloroethane and trichloroethane; alcohols such as methanol, ethanol, isopropyl alcohol, butanol, hexanol, benzyl alcohol and ethylene glycol; ethers such as diethyl ether, ethyleneglycol dimethyl ether, diethyleneglycol monomethyl ether, diethyleneglycol monoethyl ether, propyleneglycol monomethyl ether, tetrahydrofuran and dioxane; esters such as ethyl acetate and butyl acetate; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone; nitriles such as acetonitrile and isobutylonitrile; acid amides such as dimethylsulfoxide, N,N-dimethylformamide and N,N-dimethylacetamide; botanical oils such as soy bean oil and cotton seed oil; essential oils such as orange oil, hyssop oil and lemon oil; water and the like.
Further, it is worth noting that the compositions may also utilized therein a propellant. Exemplarily of the compositions that may utilize the propellant therein include the foamy compositions, aerosols and the like. As the propellant in such foamy compositions or in such aerosols, for example, there is mentioned propane gas, butane gas, chlorofluorohydrocarbons, liquefied petroleum gases, dimethyl ether and the like.
As the adjuvants, for example, there is mentioned non-ionic emulsifiers such as polyoxyethylene fatty acid esters and polyoxyethylene fatty acid alcohol ethers; ionic emulsifiers such as alkylsulfonate salts, alkylsulfate salts and arylsulfonate salts; dispersing agents such as ligninsulfonate salts and methylcellulose; sticking agents such as carboxymethylcellulose, gum arabic, polyvinyl alcohol and polyvinylacetate; coloring agents such as iron oxide, titanium oxide, Persian blue, alizarine dye, azo dye and phthalocyanine dye; buffers such as acetate salts and sodium citrate; pH controlling agents such as citric acid, adipic acid, fumaric acid, malic acid, gluconic acid, and acetic acid; anti-corrosive agents; preservatives; antioxidants such as butylhydroxyanisol (BHA), dibutylhydroxytoluene (BHT), tocopherol and &ggr;-oryzanol; deodorants and the like.
In the present invention, as fibrous products subject to prevention of pes
Sembo Satoshi
Sugano Masayo
Birch Stewart Kolasch & Birch, LLP.
Pryor Alton
Sumitomo Chemical Company Limited
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