WO1999003349A1 - Inhibiteur de croissance de thiobacillus thiooxidans, composition de ciment, et structure a base de ciment - Google Patents
Inhibiteur de croissance de thiobacillus thiooxidans, composition de ciment, et structure a base de ciment Download PDFInfo
- Publication number
- WO1999003349A1 WO1999003349A1 PCT/JP1998/003147 JP9803147W WO9903349A1 WO 1999003349 A1 WO1999003349 A1 WO 1999003349A1 JP 9803147 W JP9803147 W JP 9803147W WO 9903349 A1 WO9903349 A1 WO 9903349A1
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- Prior art keywords
- water
- group
- cement
- powder
- component
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 43
- 239000003966 growth inhibitor Substances 0.000 title abstract description 19
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- 239000000843 powder Substances 0.000 claims abstract description 46
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/128—Heterocyclic nitrogen compounds
-
- 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
- A01N59/16—Heavy metals; Compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/08—Acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/67—Biocides
Definitions
- Ciobacillus Chooxydans growth inhibitor
- the present invention relates to a Ciobacillus thioxidans growth inhibitor, a cement composition containing the growth inhibitor, and a cement structure.
- the growth can be effectively inhibited in the growth area of C. typhoidans, and there is no problem of environmental pollution even in the use under acidic conditions.
- the present invention relates to a growth inhibitor, a cement composition, and a cement structure that can be effectively used to prevent deterioration of a cement structure such as a concrete sewer pipe that comes into contact with the body or sewage.
- heavy metal ions kill biooxidizing bacteria of the genus Ciobacillus. This bactericidal action is due to the direct action of heavy metal ions on bacteria. Since heavy metals are ionized and eluted, a large amount of heavy metals must be used. The eluted heavy metal ions have a very bad environmental effect depending on the type, and cannot be used in sewage treatment facilities.
- nickel or its oxides have a reduced inhibitory activity against the genus Tiobacillus as pH shifts to the acidic side, and their effects are hardly exhibited below pH 3. Therefore, the effect can be sufficiently maintained in the place where the sewage is in contact with the sewage and the neutrality is maintained.However, the acid part not directly in contact with the sewage, or the sewage is temporarily acidified. In this case, almost no inhibitory activity is obtained.
- a metal such as nickel that is insoluble in water and soluble in sulfuric acid is exposed under strong acidity, it is eluted as metal ions, which is environmentally unfavorable. In addition, elution with metal ions reduces the amount of the inhibitor itself, which may make it difficult to maintain the inhibitory activity against the genus Tiobacillus for a long period of time.
- CHOXIdans under acidic conditions of not more than neutral pH and not more than pH 4 and maintain its effect for a long period of time.
- CHOBATILLUS ⁇ To provide a CHOIXIDANS growth inhibitor.
- Another object of the present invention is to provide a growth inhibitor of chobacillus thioxidans which can be easily dispersed by being added to and mixed with a concrete material or a mortar material containing cement, water and aggregate. It is in.
- Still another object of the present invention is to provide a cement structure that can be effectively used as a material for a cement structure in which deterioration due to Ciobacillus choxidans is effectively prevented.
- An object of the present invention is to provide a growth inhibitor having a good dispersibility even when added to a cement.
- Another object of the present invention is to provide a concrete, mortar, or other cement that can effectively prevent degradation due to C. cholesterol and CHOXIDANCE, and that can suppress degradation for a long period of time even in a sewage treatment facility or the like where it can become acidic.
- An object of the present invention is to provide a cement structure and a cement composition for easily preparing such a cement structure.
- the present inventors have proposed that a conventionally proposed growth inhibitor of Ciobacillus sp.
- Oxidizing bacteria containing nickel as an active ingredient for example, has a cement structure that is almost neutral, such as one that directly comes into contact with sewage or the like. It was confirmed that the effect could be sufficiently obtained in the place where H was maintained.
- this growth inhibitor containing nickel is located close to the sewage treatment facility, and the surface of the structure is not in direct contact with the sewage due to the influence of air sulfide, etc. It was also confirmed that the growth-inhibiting activity, particularly against C. cholesterol, was reduced or hardly obtained under the environment.
- nickel powder cysteine powder and nickel or nickel cysteine A combination of a derivative powder with a tungsten powder and / or a substantially water-insoluble tundastane compound powder and / or a tungstate that is water-soluble and reacts with cement to be substantially water-insoluble.
- the present inventors have studied diligently to make the inhibitory effect of the above-mentioned Tiobacillus thioxidans growth inhibitor more effective on a cement structure such as a concrete structure or a mortar structure.
- a cement structure such as a concrete structure or a mortar structure.
- this problem is solved by making the substantially water-insoluble powder in the inhibitor into a water-dispersed state in advance for the purpose of easily dispersing the inhibitor in a concrete material or a mortar material.
- the present invention was completed by finding what could be done.
- a first component selected from the group consisting of a nickel phthalocyanine powder, a nickel phthalocyanine derivative powder, and a mixture thereof; a tungsten powder; a substantially water-insoluble tungsten compound powder; And a second component selected from the group consisting of tungstates which are substantially water-insoluble when reacted with cement and mixtures thereof.
- the first component, the second component, water, and a dispersant for dispersing a water-insoluble powder among the first component and the second component in water further provides a Ciobacillus thioxidans growth inhibitor in the form of an aqueous dispersion.
- a cement an aggregate, water, the first component, the second component, and a water-insoluble powder among the first component and the second component And a dispersant for dispersing the cement, wherein the composition is in a fluid state.
- a cement structure obtained by curing the cement composition A body is provided.
- FIG. 3 is a graph showing the relationship between the pH of each metal or metal compound and the amount of elution performed in Reference Example.
- FIG. 4 is a graph showing the amount of calcium ions eluted over time when each of the cement structures performed in Examples 14 to 17 and Comparative Example 8 were immersed in a culture solution of NBI-13 strain. .
- the inhibitor of the present invention when mixed with a structural material such as concrete, mortar, or a polymer material in a sewage treatment plant or the like, causes one of the causes of deterioration of the structural material, the growth of Ciobacillus chooxydans. Acts to inhibit This effect occurs not only in structures that come into direct contact with sewage, but also in the vicinity of sewage treatment facilities, where the surface of the structures is under acidic conditions of pH 4 or lower due to the effects of airborne hydrogen sulfide and the like. Also works effectively, effectively preventing the deterioration of the structure.
- the inhibitor of the present invention When the inhibitor of the present invention is present in a cement structure such as concrete or mortar, it is hardly eluted in sewage or the like, and is less likely to elute as metal ions even under acidic conditions. Etc. as active ingredients. Therefore, the inhibitory activity is maintained for a long time. Instead of such a metal ion, the metal itself inhibits the growth of C. cholesterol.
- the light active ingredient has, for example, almost no inhibitory activity against gram-negative bacteria such as Escherichia coli and gram-positive bacteria S. aureus, and shows almost no bactericidal activity against T. cholesterol. Although the principle of such an action is not clear, as described above, the active ingredient does not directly act on the C.
- the inhibitor of the present invention comprises: a first component selected from the group consisting of a nickel phthalocyanine powder, a nickel phthalocyanine derivative powder, and a mixture thereof; a tungsten powder; a substantially water-insoluble tungsten compound powder; It contains both a tungstate, which is water-soluble and is substantially water-insoluble upon reacting with the cement, and a second component selected from the group consisting of mixtures thereof.
- the nickel phthalocyanine powder is a powder of a compound in which a nickel atom is coordinated to a phthalocyanine skeleton having no substituent. This nickel phthalocyanine powder is water-insoluble and is also substantially water-insoluble in acids.
- the Nikerft mouth cyanine derivative powder is a powder of a compound having a substituent atom other than a hydrogen atom or a substituent other than a hydrogen atom on the benzene ring of a Nikerft mouth cyanine derivative molecule, and is usually water-insoluble. It is a compound that hardly dissolves in acids.
- Substituent atoms or substituents of the nickel phthalocyanine derivative include halogen atoms such as fluorine, chlorine, bromine, and iodine; methyl, ethyl, propyl, butyl, sec-butyl and tert-butyl.
- Pentyl Group Pentyl Group, hexyl group, heptyl group, octyl group, stearyl group, trichloromethyl group, cyclopropyl group, 1,3-cyclohexagenyl group, 2-cyclopentenyl-1-yl group, 2,4- Substituted or unsubstituted alkyl groups such as cyclopentadiene 1-yridenyl group; methoxy group, ethoxy group, propoxy group, n-butoxy group, sec-butoxy group, tert-butoxy group, pentyloxy group, A substituted or unsubstituted alkoxy group such as a hexyloxy group, a stearyloxy group, or a trifluoromethoxy group; a methylthio group, an ethylthio group, a propylthio group, a butylthio group, a sec-butylthio group, a
- Substituted amino group carbocyclic aromatic amino group such as diphenylamino group, ditolylamino group; bis (acetoxoxymethyl) amino group, bis (acetoxitytyl) amino group, bis (acetoxyl) Mono- or di-substituted amino groups such as cypropyl) amino group, bis (acetooxybutyl) amino group and dibenzylamino group; substitution of phenoxy group, p-tert-butylphenoxy group and 3-fluorophenoxy group Substituted or unsubstituted aryloxy, phenylthio, substituted or unsubstituted 3-fluorophenylthio, etc.
- arylthio group phenyl group, biphenyl group, triphenyl group, tetraphenyl group, 3-nitrophenyl group, 4-methylthiophenenyl group, 3,5-dicyanophenyl group, o — Tolyl group, m-tolyl group, p-tolyl group, xylyl group, 0-tamenyl group, m-cumenyl group, p-cumenyl group, mesityl group, pentalenyl group, indul group, naphthyl group , Azulenyl, heptalenyl, acenaphthenyl, phenalenyl, fluorenyl, anthryl, ant Laquinonyl group, 3-methylanthryl group, phenanthryl group, triphenylene group, pyrenyl group, crysenyl group, 2-ethyl-1 crysenyl group, piceninole
- the first component exhibits a growth-inhibiting activity against C.bacillus thioxidans, particularly in an environment near neutrality.
- the average particle size of the first component is not particularly limited.
- the average particle size is 0.0 1 ⁇ 1 ⁇ , especially l / ⁇ ! ⁇ 0.1 mm; ⁇ preferred! ⁇ .
- the tungsten powder is insoluble in water and hardly soluble in acids.
- the tungsten compound powder is a substantially water-insoluble powder, and preferably has little solubility in an acid.
- Unatangusuten compounds for example, W 28 ⁇ 58 (- are referred to as "Bull one Okisai do" in general), W0 3 and tungsten acid; calcium tungstate (C tungstate such aWOj Examples thereof include salts, and mixtures thereof, etc.
- a tungstate that is water-soluble and becomes substantially water-insoluble when reacted with cement can also be used.
- the second component has a growth inhibitory activity against Tiobacillus thioxidans under acidic conditions, particularly under acidic conditions of pH 4 or less.
- the average particle size of the powder is not particularly limited.
- the powder is mixed with a cement structure, the growth inhibitory effect is effectively exerted, and a portion in the structure at the time of molding the structure is used.
- the particle size blended at the desired position is preferred. Specifically, 1 / ⁇ ! ⁇ 0.2 mm is preferred.
- the effective concentration is l / mol / l or more, particularly lOlOO / zmolZ, with respect to the growth environment of Ciobacillus choxoxidans.
- the range where l is preferable.
- using the inhibitor of the present invention to prevent the cement structure from deteriorating due to Ciobacillus thioxidans it is necessary to add 0.001 to 100 parts by weight of cement in the cement structure.
- a sufficient growth inhibitory effect can be obtained even in a range of from 1.0 to 1.0 part by weight, particularly in a small range of 0.0001 to 0.1 part by weight.
- the effect can be remarkably maintained as compared with the conventional corrosion-resistant material coating.
- the mixing ratio of the first component and the second component is preferably such that the weight ratio of the first component to the second component is in the range of 1: 0.1 to 1.0.
- the inhibitor of the present invention may further comprise, if necessary, water and a dispersant for dispersing a water-insoluble powder of the first component and the second component in water.
- a dispersant for dispersing a water-insoluble powder of the first component and the second component in water may further comprise, if necessary, water and a dispersant for dispersing a water-insoluble powder of the first component and the second component in water.
- It can also be an inhibitor in a water-dispersed state that can be easily added to water.
- the preferred aqueous dispersion state is a state in which the first component and the second component are uniformly dispersed in water or a part thereof is dissolved, and the dispersed state can be maintained at room temperature for 60 days or more. Things are desirable.
- the dispersant examples include a concrete admixture such as a high-performance water reducing agent and a fluidizing agent, or a complex thereof. Specific examples include naphthalene sulfonate, melamine sulfonate, lignin sulfonate, polycarboxylate, polyol, oxycarboxylic acid, rhodane compound, triazone compound, and mixtures thereof. Also, a commercially available concrete admixture can be used as it is.
- the mixing ratio of water and the dispersant is 100 to 100 parts by weight of the first component and the second component, and water is 50 to 100 parts by weight.
- Parts by weight, preferably 100 to 300 parts by weight, and the dispersing agent is preferably 50 to 500, particularly preferably 100 to 500.
- the dispersant is dissolved in water, and then the second component is mixed and dispersed or dissolved, and then the first component is gradually dissolved. And stirring and dispersing.
- the cement composition of the present invention comprises a cement, an aggregate, water, the first component, the second component, and a water-insoluble material among the first component and the second component. And a dispersant for dispersing the powder of the composition, and the composition is in a fluid state. Therefore, this cement composition is suitable for transportation in a mixer truck or the like. Further, when producing the cement structure, the first component and the second component are prevented from being separated from or coagulated from other components, and therefore, it is necessary to use this cement composition. Thus, the cement structure can be manufactured by a normal raw concrete placing method.
- the cement is not particularly limited, and various cements such as portland cement, mixed cement, special cement and the like can be used.
- the particle size of the aggregate can be appropriately selected according to the target structure.
- Preferred examples of the first component, the second component, and the dispersant include those described in the above specific examples.
- the mixing ratio of coarse aggregate and aggregate such as Z or fine aggregate is in the range of 50 to 500 parts by weight with respect to 100 parts by weight of cement. It is preferable to select appropriately according to the purpose. It is preferable that the mixing ratio of water is appropriately selected from the range of 20 to 80 parts by weight based on 100 parts by weight of cement according to the purpose. It is preferable that the mixing ratio of the first component is appropriately selected from the range of 0.05 to 2 parts by weight based on 100 parts by weight of cement according to the purpose. It is preferable that the mixing ratio of the second component is appropriately selected from the range of 0.05 to 2 parts by weight based on 100 parts by weight of the cement according to the purpose. It is preferable that the mixing ratio of the dispersant is appropriately selected from the range of 50 to 100 parts by weight based on 100 parts by weight of the first component and the second component according to the purpose.
- the preparation of the cement composition of the present invention is not particularly limited as long as each component can be in a fluidized state in which each component is dispersed or partially dissolved.
- the cement composition of the present invention may contain various other additives, if necessary, as long as the purpose is not impaired.
- the other additives include an air entraining agent, a water reducing agent, a fluidizing agent, and the like, which are usually added to a concrete structure or a mortar structure.
- the mixing ratio of the other additives can be appropriately selected according to the obtained structure.
- the cement structure of the present invention is a concrete structure or a mortar structure obtained by curing the cement composition.
- the cement composition can be cured by a known casting method, a compaction method, a molding and curing method, or the like.
- the molding and curing can be performed by a centrifugal molding method or the like.
- the curing conditions are not particularly limited, and conditions suitable for the intended cement structure can be appropriately selected.
- the cement structure of the present invention inhibits the growth of Tiobacillus ′ thioxidans, with the compounded first component and the second component hardly being eluted as metal ions, and Since the deterioration is prevented or suppressed, it can be effectively used not only in places where sewage treatment facilities are in direct contact with sewage, but also in places where surfaces not in contact with sewage are acidified.
- the inhibitor of the present invention contains the first component and the second component, which are specific metal compounds. Inhibits the growth of chooxydans sufficiently. In addition, since these components exhibit growth inhibitory activity with little elution as metal ions from the cement structure, their effects are maintained for a long period of time. Therefore, the cement structure of the present invention in which a small amount of the inhibitor of the present invention is added to a cement structure such as a concrete structure or a mortar structure in a sewage treatment plant or the like, the growth of Ciobacillus thioxidans can be achieved. It can be sufficiently inhibited, and does not substantially reduce the strength of the structure itself.
- the cement composition of the present invention is a fluid in which the first component and the second component, which are the active components of the inhibitor, are dispersed or partially dissolved, the cement structure of the present invention It is effective to manufacture the whiskers, and it is possible to transport them in a flowing state without separation by a single mixer or the like.
- NBI-3 strain A yellow colony of Ciobacillus chooxydans obtained by the culture was isolated, and this isolate was designated as NBI-3 strain.
- Nickel powder (N i), tungsten powder (W), the W 28 0 58 powder and Stevenage Kerufuta Roshianin powder was added different sulfuric acid solution of p H, the relationship between p H and elution of the metal or metal compound It was measured. The results are shown in Figure 3.
- Figure 3 yo Ri, W, W 28 0 S 8 and nickel phthalocyanine were not ⁇ throat eluted in the acidic region.
- Ni hardly dissolves near neutrality, but elutes significantly in the acidic region.
- each specimen was placed in the previously prepared thiosulfate medium, and 13 NBI strains prepared in Example 1 were added, followed by culturing for 24 hours at 30.
- the amount of calcium eluted from the specimen was determined by measuring the amount of change in calcium ion in the medium using an atomic absorption spectrometer (product name “AA-625-01”, manufactured by Shimadzu Corporation). It was determined by measuring the wavelength.
- L OOO gZml was used as the calcium ion standard solution for atomic absorption.
- the pH of the medium after completion of the culture was 6.0.
- Figure 4 shows the measurement results for each specimen.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50690099A JP3320074B2 (ja) | 1997-07-14 | 1998-07-14 | チオバチルス・チオオキシダンス生育阻害剤、セメント組成物及びセメント構造体 |
EP98931089A EP0956770A4 (en) | 1997-07-14 | 1998-07-14 | GROWTH INHIBITOR FORT THIOBACILLUS TIOOXIDANS, CEMENT COMPOSITIONS AND STRUCTURE |
AU81303/98A AU725092B2 (en) | 1997-07-14 | 1998-07-14 | Thiobacillus thiooxidans growth inhibitor, cement composition, and cement structure |
US09/269,147 US6224658B1 (en) | 1997-07-14 | 1998-07-14 | Thiobacillus thiooxidansgrowth inhibitor, cement composition, and cement structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/188686 | 1997-07-14 | ||
JP18868697 | 1997-07-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999003349A1 true WO1999003349A1 (fr) | 1999-01-28 |
WO1999003349A8 WO1999003349A8 (fr) | 1999-04-01 |
Family
ID=16228069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/003147 WO1999003349A1 (fr) | 1997-07-14 | 1998-07-14 | Inhibiteur de croissance de thiobacillus thiooxidans, composition de ciment, et structure a base de ciment |
Country Status (8)
Country | Link |
---|---|
US (1) | US6224658B1 (ja) |
EP (1) | EP0956770A4 (ja) |
JP (1) | JP3320074B2 (ja) |
KR (1) | KR100326651B1 (ja) |
CN (1) | CN1084592C (ja) |
AU (1) | AU725092B2 (ja) |
ID (1) | ID22151A (ja) |
WO (1) | WO1999003349A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6992091B2 (en) | 2002-09-12 | 2006-01-31 | Bristol-Myers Squibb Company | N-ureidoalkyl-piperidines as modulators of chemokine receptor activity |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0881198B1 (en) * | 1996-02-13 | 2003-01-22 | Toyo Ink Manufacturing Co., Ltd. | Deterioration preventive for concrete or mortar and method for preventing deterioration of concrete or mortar |
US6402243B1 (en) * | 2001-07-20 | 2002-06-11 | Lausan Chung-Hsin Liu | Safety harness structure for rocking chairs |
KR100841789B1 (ko) | 2007-02-13 | 2008-06-27 | 주식회사 석진레미콘 | 국문 : 구조용 항균 레디믹스트 콘크리트 제조방법 |
DE102013114575A1 (de) * | 2013-12-19 | 2015-06-25 | AMiSTec GmbH & Co. KG | Verfahren zum Herstellen eines antimikrobiell wirksamen Verbundwerkstoffs und antimikrobiell wirksamer Verbundwerkstoff |
CN114620987B (zh) * | 2022-04-28 | 2023-06-30 | 广西壮族自治区水利科学研究院 | 一种具备微生物腐蚀效果的海洋混凝土 |
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JPH04149053A (ja) * | 1990-10-12 | 1992-05-22 | Hazama Gumi Ltd | コンクリート、モルタル又は高分子材料の劣化防止方法 |
JPH0672815A (ja) * | 1992-08-31 | 1994-03-15 | Hazama Gumi Ltd | 含硫鉱物の劣化防止方法 |
JPH1025142A (ja) * | 1996-07-08 | 1998-01-27 | Toyo Ink Mfg Co Ltd | コンクリート又はモルタル用劣化防止剤、それを含有するコンクリート、モルタル |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0881198B1 (en) * | 1996-02-13 | 2003-01-22 | Toyo Ink Manufacturing Co., Ltd. | Deterioration preventive for concrete or mortar and method for preventing deterioration of concrete or mortar |
WO1998014061A1 (fr) * | 1996-09-30 | 1998-04-09 | Hazama Corporation | Inhibiteur de croissance de bacterie d'oxydation du soufre |
-
1998
- 1998-07-14 ID IDW990093A patent/ID22151A/id unknown
- 1998-07-14 EP EP98931089A patent/EP0956770A4/en not_active Withdrawn
- 1998-07-14 KR KR1019997002091A patent/KR100326651B1/ko not_active Expired - Fee Related
- 1998-07-14 US US09/269,147 patent/US6224658B1/en not_active Expired - Fee Related
- 1998-07-14 WO PCT/JP1998/003147 patent/WO1999003349A1/ja not_active Application Discontinuation
- 1998-07-14 JP JP50690099A patent/JP3320074B2/ja not_active Expired - Fee Related
- 1998-07-14 AU AU81303/98A patent/AU725092B2/en not_active Ceased
- 1998-07-14 CN CN98801294A patent/CN1084592C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04149053A (ja) * | 1990-10-12 | 1992-05-22 | Hazama Gumi Ltd | コンクリート、モルタル又は高分子材料の劣化防止方法 |
JPH0672815A (ja) * | 1992-08-31 | 1994-03-15 | Hazama Gumi Ltd | 含硫鉱物の劣化防止方法 |
JPH1025142A (ja) * | 1996-07-08 | 1998-01-27 | Toyo Ink Mfg Co Ltd | コンクリート又はモルタル用劣化防止剤、それを含有するコンクリート、モルタル |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6992091B2 (en) | 2002-09-12 | 2006-01-31 | Bristol-Myers Squibb Company | N-ureidoalkyl-piperidines as modulators of chemokine receptor activity |
Also Published As
Publication number | Publication date |
---|---|
AU725092B2 (en) | 2000-10-05 |
CN1239405A (zh) | 1999-12-22 |
KR20000068546A (ko) | 2000-11-25 |
JP3320074B2 (ja) | 2002-09-03 |
EP0956770A1 (en) | 1999-11-17 |
WO1999003349A8 (fr) | 1999-04-01 |
KR100326651B1 (ko) | 2002-03-02 |
ID22151A (id) | 1999-09-09 |
EP0956770A4 (en) | 2004-08-18 |
US6224658B1 (en) | 2001-05-01 |
CN1084592C (zh) | 2002-05-15 |
AU8130398A (en) | 1999-02-10 |
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