Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
  • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds

Definitions

• the present invention relates to a solid fungicide which acts directly on fungi which develop on and attach to the surfaces of interior and exterior building materials, and kills them, while also providing a newly cleaned surface by bleaching the action surface.
• the fungicide of the invention may be used with particular advantages in the form of a stick fungicide housed in a container.
• fungi which develop on and attach to the surfaces of interior and exterior building materials has conventionally been accomplished with a wide variety of different types of fungicides. Because fungi tend to develop in large amounts particularly on the constantly moist parts, such as the walls (particularly the joints between tiles), of bathrooms, kitchens and wash basins, a number of fungicides are normally provided in the form of combinations of strong alkalis such as sodium hydroxide with strong oxidizing agents such as hypochlorous acid salts, and this form is usually a liquid stored in container, which can be absorbed by a cloth or sponge and applied to the sections from which fungi are to be eliminated, or if the container is a spray container, a suitable amount of the liquid is sprayed for application onto those sections.
• strong alkalis such as sodium hydroxide
• strong oxidizing agents such as hypochlorous acid salts
• Wipeable type fungicides provided with felt applicators have been proposed as a means of solving the problems described above. Because such fungicides can be used with the liquid fungicide included in the applicator, it is possible to avoid the inconvenience referred to above, and they are therefore noteworthy especially since they prevent or reduce the occurrence of accidents caused by sprayed particles. Nevertheless, when the fungicide is included in an applicator, it is difficult to prevent dripping of excess liquid (liquid drip) from the applicator. Liquid drip indicates that an excess amount of the fungicide is being used, which can be economically undesirable, and it can easily be seen that as long as fungicides are in such liquid forms there will exist the danger of generation of chlorine gas by their use in admixture with acidic cleaning agents.
• Fungicides composed mainly of oxygen-based bleaching agents, particularly hydrogen peroxide reduce the danger of chloride gas generation by use of admixture with acidic cleaning agents.
• Such types of fungicides are often inadequately effective for killing large amounts of fungi because hydrogen peroxide is an alkali and unstable, rendering the fungicides themselves weakly acidic. That is, when using fungicides composed mainly of oxygen-based bleaching agents, the operation for elimination of the fungi must be carried out more frequently.
• lactic acid-based fungicides are known which contain no bleaching components, such fungicides upon killing the fungi leave the color of the fungi as a smudge, and therefore hardly result in an adequate cleaning effect.
• the above-mentioned object can be achieved by a solid fungicide characterized by containing an oxidation-type bleaching agent as an effective component and comprising a gelling agent for solidification of the bleaching agent.
• the solid fungicide of the invention is characterized by employing an oxidation-type bleaching agent as the effective component and a gelling agent for solidification of the bleaching agent.
• the oxidation-type bleaching agent used as the effective component may be any one or combination of two or more compounds appropriately selected from among those known in the field of fungicides to have excellent fungicidal and bleaching properties.
• the oxidation- type bleaching agent in the fungicide of the invention exhibits an excellent oxidizing effect, thus killing fungi while also bleaching (pigment bleaching) sections which have been blackened or otherwise colored by the fungi.
• oxidation-type bleaching agents which can be advantageously used include alkali metal salts and alkali earth metal salts, for example sodium salts, potassium salts and calcium salts, of halogen oxyacids, for example hypohalogenous acids such as hypochlorous acid and hypobromous acid, halogenous acids such as chlorous acid and bromous acid, and halogenic acids such as chloric acid and bromic acid, with preferred examples being sodium hypochlorite, potassium hypochlorite and calcium hypochlorite. .Also, other chlorine sources such as sodium chloride, calcium chloride, potassium chloride and other chlorides may also be added.
• sodium hypochlorite and/or potassium hypochlorite may be most advantageously used, and the amount of sodium hypochlorite and/or potassium hypochlorite is preferably adjusted so that the amount of available chlorine in the fungicide is at least 0.3%, and preferably so that the amount of available chlorine is at least 0.5% and less than 4.5%.
• the amount of available chlorine from the hypochlorous acid salt is under 0.3% the fungus bleaching effect will be inadequate; however, if the amount of the available chlorine is 0.5% or greater, killing and bleaching of the fungi can be expected within a waiting time of about 5 minutes.
• the amount of available chlorine increases to 4.5% or greater, it will be impossible to achieve gelatin and thus solidification of the resulting fungicide, despite the use of the gelling agent.
• Suitable gelling agents include aliphatic carboxylic acids, and preferably alkali metal salts or ammonium salts of aliphatic carboxylic acids of 8-16 carbon atoms, and 1,2-hydroxystearic acid; these compounds may be used alone or in combinations of 2 or more.
• the amount of the gelling agent in the fungicide is preferably adjusted so that the amount is 0.3-20%, and more preferably 0.5-10%. Actually, if the amount of the gelling agent is under 0.3% it will be impossible to adequately maintain the solid state of the fungicide, thus hampering its feeding out from the container during use. Conversely, if the amount of the gelling agent increases to 20% or greater, the fungicide will become too hard, preventing application of an adequate amount of the fungicide to the desired areas when used, and requiring repeated applications in order to apply the desired amount of the effective component.
• the fungicide of the invention may have a variety of compositions which include the above-mentioned bleaching agent and gelling agent, but preferably comprises a base, an oxidation-type bleaching agent, a gelling agent, a surfactant, a humectant, a thickener and water.
• the base is used in the fiingicide of the invention for a two-fold function, i.e., for achieving the purposes of inhibiting growth of fungi and preventing decomposition of the oxidation-type bleaching agent, specifically of hypochlorous acid metal salts. Consequently, according to the invention, when the base is added to the fiingicide its amount is preferably adjusted so that he final pH value of the fungicide is higher than 11, and more preferably in the range of 12-13.
• the amount of base added is generally preferred for the amount of base added to be adjusted so as to produce a pH value at least higher than 11, and more preferably a pH value in the range of 12-13.
• the surfactant used as necessary in the fungicide of the invention serves the purpose of improving the cleaning property, and any desired non-ionic, anionic, cationic or amphoteric surfactant may be used.
• Suitable surfactants which may be mentioned include, but are not limited to, the following examples: non-ionic surfactants such as alkyl phenols and ethylene oxide addition products; anionic surfactants such as alkylbenzene sulfonate, cationic surfactants such as alkyltrimethylammonium, and amphoteric surfactants such as amino acid types.
• the amount of surfactant to be added to the fungicide may be selected as desired.
• the humectant which may also be used if necessary serves the purpose of preventing drying out of moisture during storage, and any common humectant may be used, including glycerine and polyethylene glycol.
• the amount of the humectant to be added may also be selected as desired depending on the need.
• the thickener is added for the purpose of complementing the gelling property to provide spreadability which an ensured a smooth, uniform distribution.
• thickeners which may be advantageously used in the fungicide of the invention include, but are not limited to, the following: organic thickeners such as polyacrylic acid and polysaccharide compounds, and inorganic thickeners such as synthetic mica and synthetic smectite.
• the amount of thickener to be added may be selected as desired depending on the need.
• the fiingicide of the invention may be prepared by combining the above- mentioned components in the desired manner.
• a fungicide precursor is prepared by combining all of the components except the gelling agent in the desired order.
• a solid fungicide with the desired shape may be obtained.
• the fungicide of the invention is preferably provided in solid form, and more preferably in stick form.
• the stick-shaped fungicide is preferably housed in a container in a manner which allows its gradual feeding out during use.
• the stick may have the shape of a smaller cylinder or small prism, but is preferably a small cylinder to allow easier feeding out from the container. If the stick is a small cylinder, its dimensions are preferably a 10-30 mm diameter and a 50-150 mm length for better handleability, but diameters of smaller than 10 mm may also be employed if necessary for use in narrow areas from which fungi are to be eliminated.
• the fungicide of the invention may be applied for elimination of fungi in the same manner as, but more easily then, common fungicides.
• fungicide for removal of fungi developing on bathroom walls, a prescribed amount of the fungicide is fed out from the stick container and applied so that the fungicide is rubbed onto the joint sections between wall tiles.
• a few applications of the fungicide, such as once or twice, will normally be sufficient, but repeated application is also possible if necessary.
• the fungicide may be adequately applied at a low thickness so long as the fungicide contacts the fungi. After the fungicide
• -6- has been applied, it is left to stand to allow sufficient action on the fungi.
• the standing time need only be a short time, usually about 5-6 minutes.
• Progress of the fungicidal effect may be easily confirmed in a visual manner based on fading of color of the fungi, i.e. depigmentation of the fungi. .
• the fungicide adhering to the wall is removed by washing.
• An advantage of the fungicide of the invention is that it can be easily removed by water washing alone, and particularly, water washing may be advantageously accomplished by spraying lukewarm water onto the applied sections with a shower or the like. Subsequent drying may be achieved by allowing the sections to stand.
• Example 1 The following reagent grade compounds were combined in the amounts indicated.
• the resulting fungicide was thinly applied to the fungi-rich joints of tiles in a bathroom and allowed to .stand for 5 minutes. .After application of the fungicide, the fungi color gradually faded, becoming virtually colorless after 5 minutes.
• the sodium hypochlorite aqueous solution, sodium hydroxide and synthetic smectite were added in their prescribed amounts to the prescribed amount of water, and mixed after placement in a glass container (washed commercially available mayonnaise bottle). Solutions with each of the components dissolved therein were obtained. For preparation of fungicide sample 2-1, the subsequent preparation steps were omitted since completely uniform dissolution of the components could not be achieved at this stage. For fungicide samples 2-2 to 2-7, sodium myristate was then added to the solution in the prescribed amounts, and the mixture was heated to 85-90°C. This gave viscous, milky white solutions.
• the fungicidal action of each of the obtained fungicides were evaluated based on the degree of color fading.
• each of the fungicides was thinly applied thereon as a stripe and allowed to stand for 5 minutes.
• the violet color of the veneer panel slowly faded after application of the fungicides.
• Visual examination of the color fading from the veneer panel gave the results listed in Table 2 below.
• Fungicides (fiingicide samples 2-2 to 2-4) whose effectiveness (satisfactory color fading) had been evaluated in the simulation fungicide test described above were thinly applied to the fungi-rich joints of tiles in a bathroom and allowed to stand for 5 minutes. ..After application of the fungicide, the fungi color gradually faded, becoming virtually colorless after 5 minutes. Upon then spraying warm water from a shower onto the sites where the fungicide had been applied, complete washing and removal was possible without residue of the fungicide. The results obtained are listed in Table 2.
• fungicides it is preferred for fungicides to have their compositions adjusted so that the available chlorine contents are within the ranges of the fungicides of the invention, i.e. it is preferred for sodium hypochlorite and (or) potassium hypochlorite to be added so that the available chlorine content is at least 0.3%, and even more preferred for sodium hypochlorite and (or) potassium hypochlorite to be added so that the available chlorine content is at least 0.5%. With an available chlorine content of under 0.3% the bleaching of the fungi will be
• fungicides with available chlorine contents of at least 0.5% can offer bleaching and elimination of fungi within a waiting time of about 5 minutes.
• the sodium hydroxide was added in its prescribed amounts to the prescribed amount of water, and each mixture was placed in a glass container.
• the prescribed amount of sodium myristate was added to the mixture which was then heated to 85-90°C.
• the prescribed amount of sodium hypochlorite the solution was heated to 85-90°C. All of the components dissolved, giving a viscous, milky white solution.
• the subsequent preparation steps were omitted since completely uniform dissolution of the components could not be achieved at this stage.
• the fungicides prefferably be prepared by adding sodium hypochlorite and (or) potassium hypochlorite so that the available chlorine content is less than 4.5%.
• Example 2 The procedure described in Example 2 was repeated.
• reagent grade sodium hydroxide reagent grade sodium myristate
• synthetic smectite tradename: SWN, product of Cope Chemical Co.
• the sodium hypochlorite aqueous solution, synthetic smectite and sodium hydroxide were added in their prescribed amounts to the prescribed amount of water, and mixed after placement in a glass container.
• the prescribed amount of sodium myristate was added to each solution which was then heated to 85-90°C. All of the components dissolved, giving a viscous, milky white solution.
• Each of the resulting viscous solutions was packed into an oven-preheated plastic container for stick glue having an inner diameter of 21 mm and a depth of 50 mm, and allowed to cool to room temperature.
• the fungicides it is preferred for the fungicides to be prepared by adding the fatty acid alkali metal salts sodium stearate and sodium myristate so that the alkali metal salt content is in the range of 0.3-20%, and more preferably so that the fatty acid alkali metal salt content is in the range of 0.5-10%.
• the fungicides contained these gelling agents at less than 0.3% the solid state could not be adequately maintained, and it was difficult to feed out the container-housed fungicide during use.
• fungicide As explained above, by using a fungicide according to the invention, its effective component acts directly on fungi and kills them while also providing a newly cleaned surface by bleaching the action surface, to allow reliable fungicidal and cleaning operations through safe and easy use without waste.

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• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Health & Medical Sciences (AREA)
• Dentistry (AREA)
• Zoology (AREA)
• Plant Pathology (AREA)
• Environmental Sciences (AREA)
• Engineering & Computer Science (AREA)
• Agronomy & Crop Science (AREA)
• Wood Science & Technology (AREA)
• Pest Control & Pesticides (AREA)
• Toxicology (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Dispersion Chemistry (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Detergent Compositions (AREA)

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• 1998
  • 1998-03-20 JP JP10072584A patent/JPH11293281A/ja active Pending
• 1999
  • 1999-03-16 WO PCT/US1999/005764 patent/WO1999046985A1/en not_active Application Discontinuation
  • 1999-03-16 AU AU30077/99A patent/AU3007799A/en not_active Abandoned
  • 1999-03-16 JP JP2000536237A patent/JP2002506793A/ja active Pending
  • 1999-03-16 EP EP99911437A patent/EP1063884A1/en not_active Withdrawn
  • 1999-03-16 BR BR9908937-8A patent/BR9908937A/pt not_active IP Right Cessation
  • 1999-03-16 KR KR1020007010185A patent/KR20010041886A/ko not_active Application Discontinuation
  • 1999-03-16 CN CN99804103A patent/CN1293539A/zh active Pending

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