WO2004064524A1 - ガラス質抗菌剤および抗菌性製品 - Google Patents
ガラス質抗菌剤および抗菌性製品 Download PDFInfo
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- WO2004064524A1 WO2004064524A1 PCT/JP2004/000661 JP2004000661W WO2004064524A1 WO 2004064524 A1 WO2004064524 A1 WO 2004064524A1 JP 2004000661 W JP2004000661 W JP 2004000661W WO 2004064524 A1 WO2004064524 A1 WO 2004064524A1
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- glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- 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
- A01N59/08—Alkali metal chlorides; Alkaline earth metal chlorides
-
- 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
- A01N59/14—Boron; Compounds thereof
-
- 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
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/015—Biocides
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/02—Antibacterial glass, glaze or enamel
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Definitions
- the present invention relates to a vitreous antibacterial agent containing silver and zinc, a bacillary resin composition containing the antibacterial agent and an antibacterial product.
- an antibacterial metal such as silver or copper supported on apatite, zeolite, glass, zirconium phosphate, or silica gel has been known. Compared to organic antibacterial agents, these compounds have higher safety and have a longer lasting antibacterial effect because they do not volatilize or decompose, and have excellent heat resistance. Therefore, the antibacterial resin composition obtained by mixing these antibacterial agents and various high molecular compounds is used as antibacterial products processed into fibrous, film or various molded products. It is used for
- vitreous antibacterial agents containing antibacterial metals such as silver, copper, and zinc can be easily controlled according to the purpose, such as glass particle size, refractive index, and elution of antibacterial metals. Utilizing this, it is blended and used in antibacterial resin compositions for various uses.
- a vitreous antibacterial agent containing silver has been proposed (see, for example, Japanese Patent Application Laid-Open No. H03-128480).
- a vitreous antibacterial agent containing zinc at a high concentration has been proposed (for example, refer to Japanese Patent Application Laid-Open No. 2001-264438).
- vitreous antibacterial agents containing silver also referred to as silver-based vitreous antibacterial agents
- silver-based vitreous antibacterial agents have the advantage of high antibacterial effect even when the silver content is relatively low, but they have the advantage of being kneaded into resin. Due to the effects of heat and exposure to ultraviolet light after resin processing, the quality of the resin itself is often deteriorated and deteriorated, and the resin-processed product is discolored. there were.
- a glassy antibacterial agent containing only silver as an antibacterial component can be obtained by kneading a specific resin such as ABS resin and acryl resin. In some cases, the antibacterial effect was difficult to manifest.
- a vitreous antibacterial agent containing only zinc at a high concentration has little deterioration, deterioration and discoloration of the resin when kneaded into the resin, but has a lower antibacterial activity than the glass containing silver.
- the amount added to the resin must be increased, and the inherent physical properties of the resin also deteriorate.
- compositions containing phosphate eight 8 2 ⁇ a 0.2 to 5 wt%, the Z nO:! To 50 wt%, P 2 0 5 30 to 80% by weight, the C A_ ⁇ :! To 20 wt%, vitreous antibacterial agents have been proposed which contain C E_ ⁇ 2 0.1 to 5% by weight (e.g., JP-200
- Ag 20 is 0.03 to 5 mol%
- ZnO + B a ⁇ is 0 to 30 mol%
- B 2 ⁇ 3 is 0 to 20 mol%
- T i ⁇ 2 + Ce 0 is 0 to 2.5. wt%
- Mg_ ⁇ + C aO-a 20 ⁇ 55mo l% a Na 2 0 5 ⁇ 25mo 1%
- P 2 ⁇ 5 40 ⁇ 55mo l% a PbO 0
- a glassy antibacterial agent containing up to 5 mol% has been proposed (see, for example, JP-A-8-48539).
- compositions containing no phosphate, B 2 ⁇ "20 to 50 wt%, the ZnO 50 to 80 wt%, the alkaline earth metal oxide 10 wt% or less, eight 8 2 ⁇ 2 A soluble vitreous antimicrobial agent containing less than 10% by weight has been proposed.
- Ag 2 ⁇ is 0.05 to 5% by weight
- Zn ⁇ is 0 to 30% by weight
- Mg ⁇ + Ca ⁇ + Ba ⁇ is 0 to 20%.
- B 2 vitreous antimicrobial agent containing ⁇ 3 10-60% by weight has been proposed (e.g., see JP 2000- 203876).
- vitreous antimicrobial agent mainly composed of P 2 ⁇ 5 containing silver are known to be inferior in hot water resistance.
- the glass to the B 2 0 3 as a main component hardness hard, polished metallic surfaces of the mixer and a resin molding machine for use in processing kneading the resin, abrasion metal powder tree fat composition , A problem arises in that the final resin product is darkened.
- the B 2 ⁇ 3 also is contained in the large amount of glass, there may be a problem due to poor ones as well as resistance to hot water resistance composed mainly of P 2 ⁇ 5 occurs.
- the glass skeleton forming component a is P 2 ⁇ 5 and B 2 ⁇ 3 as low a concentration as possible to keep such only lever, upon which it is impossible to contain a large amount of Z N_ ⁇ concentration relatively glass in the composition, It cannot solve problems such as warm water resistance, discoloration, and hardness when blended into resin processed products.
- a composition containing a high concentration of zinc and containing silver that is easy to reduce can be easily manufactured in small quantities at the laboratory level, but in the case of commercial production of several hundred kg or more, There was a problem that the glass was colored. Therefore, it has not been easy to mass-produce an antibacterial agent composed of glass containing silver having a high antibacterial effect and a high concentration of zinc.
- An object of the present invention is to provide a glassy antibacterial agent which exhibits high antibacterial properties when mixed with various resins, has excellent discoloration resistance and hot water resistance, and can be easily produced even in a commercial production volume. Is what you do.
- Another object of the present invention is to provide an antibacterial resin composition and an antibacterial product containing the vitreous antibacterial agent.
- the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a specific glass having a limited glass composition range can solve the above-mentioned problems, and have completed the present invention. That is, the present invention, when the whole of the glass component and 1 00 wt%, the Ag 2 O 0. 1 to 2 wt%, the ZnO 40. 5 to 49 wt%, S I_ ⁇ 2 6-9. 5% by mass, The B 2 ⁇ 3 30. 5-39. 5% by weight, an alkaline earth metal oxide 2-10 wt%, a vitreous antimicrobial agent containing Contact and Na 2 ⁇ 6-7.
- vitreous antimicrobial agent placing serial above 1, wherein the glass component further comprises a C E_ ⁇ 2 0.0 1-5% by weight.
- vitreous antibacterial agent according to 1 above wherein the vitreous antibacterial agent is in a powder form, and has an average particle size of 0.1 to 30 im.
- An antibacterial resin composition containing the vitreous antibacterial agent according to any one of the above 1 to 3 in an amount capable of expressing a fungus function.
- An antibacterial resin composition containing the glassy antibacterial agent according to any one of the above 1 to 3, in an amount of 0.03 to 5 parts by mass relative to 100 parts by mass of the antibacterial resin composition.
- the antibacterial agent of the present invention is a vitreous antibacterial agent containing at least Ag and Zn.
- Ag 2 ⁇ is 0.1 to 2% by mass
- Z ⁇ the 40.5 to 49 wt%
- the S I_ ⁇ 2 from 6 to 9.5 wt%
- B 2 0 3 to 30. 5 39.5 wt%
- the alkaline earth metal oxide 2-10% by weight and Na 2 ⁇ a from 6 to 7.
- the glass component is Ag 2 ⁇ , ZnO, Si 0. 2, B 2 ⁇ 3, made alkaline earth metal oxides and N a 2 ⁇ , including C E_ ⁇ 2 as necessary.
- the vitreous antibacterial agent can contain various oxidizing agents, additives, and other glass-forming components in addition to these glass components.
- a g 2 ⁇ content in vitreous antimicrobial agent in a component that imparts antibacterial performance of the present invention 0.1 to 2 wt% Deari, preferably 0.4 to 1.5 wt% More preferably, it is 0.6 to 1.4% by mass.
- Ag 2 ⁇ ⁇ ⁇ is difficult to vitrify, and if it is more than 2% by mass, non-vitrified metallic silver may precipitate. In some cases, the deposited metal silver causes a problem such as coloring the glass.
- the content of Ag 2 ⁇ ⁇ is less than 0.1% by mass, the antibacterial property of the vitreous antibacterial agent of the present invention may be insufficient.
- the content of ZnO in the vitreous antimicrobial agent of the present invention together with the A g 2 0 a component that imparts antimicrobial performance 40. a 5 to 49 wt%, preferably from 42 to 48.5 wt%, More preferably, it is 43 to 48% by mass. If the Zn content is more than 49% by mass, vitrification becomes extremely difficult, and the glass may be colored when the molten glass is cooled during mass production. On the other hand, if Zn ⁇ is less than 40.5% by mass, the antibacterial properties of the glass of the present invention may be insufficient.
- S i 0 2 component in vitreous antimicrobial agent of the present invention is a component for forming the skeleton of glass, the content of S I_ ⁇ 2 vitreous antimicrobial agent in the present invention, 6 to 9.5 wt% And preferably 6.5 to 9% by mass, and more preferably 7 to 8.5% by mass.
- B 2 ⁇ 3 component in vitreous antimicrobial agent of the present invention is a component for forming the skeleton of glass, the content of B 2 ⁇ 3 in vitreous antimicrobial agent of the present invention, from 30.5 to 39.5 Mass%, It is preferably 30.9 to 35.5% by mass, and more preferably 31.0 to 34.5% by mass. 13 2 ⁇ 3 is blended more than 39.5 wt%, the content of this color in the vitreous antimicrobial agent addition combined resin processed product darkening of the antimicrobial component terms of tendency to darken increases Z n O
- antibacterial properties especially after warm water or hot water treatment, become difficult to manifest due to the relative decrease in
- the B 2 0 3 is less than 5 wt% 30.
- the vitrification becomes extremely difficult, glass on cooling the molten glass in mass production there may occur a problem that coloration.
- antibacterial properties after hot or hot water treatment may be difficult to develop.
- Alkaline earth metal oxides in the vitreous antibacterial agent of the present invention include MgO, CaO, Sr ⁇ , and Ba ⁇ , and in consideration of the vitrification and the coloration resistance of the glass itself. Preferably it is C aO or B a ⁇ .
- the content ratio of alkaline earth metal oxide in the vitreous antibacterial agent is 2 to 10% by mass, a preferable ratio is 3 to 8% by mass, and a more preferable ratio is 4 to 7.5% by mass. .
- the ratio of antibacterial components such as ZnO is relatively reduced, and the antibacterial effect is less likely to be exhibited.
- the proportions of B 2 ⁇ 3 and S i ⁇ 2 decrease, making vitrification difficult.
- vitrification may be difficult even when the content of the alkaline earth metal oxide is less than 2% by mass.
- N a 2 ⁇ content of in vitreous antimicrobial agent of the present invention is 6-7. 5 wt%.
- the vitreous antimicrobial agent containing more than the Na 2 ⁇ 7.5 wt%, relative proportions of the Z-N_ ⁇ an antibacterial component is decreased, or summer antimicrobial effect is hardly expressed, B 2 ⁇ 3 and ratio of the glass skeleton forming component of S i 0 2 is reduced, there is a case where vitrification becomes difficult.
- Na2 ⁇ is less than 6% by mass, the manifestation of the antibacterial effect may be insufficient.
- the content of C E_ ⁇ 2 in vitreous antimicrobial agent of the present invention is preferably a 01-5 wt% 0.1, more preferably 0.01 to 2 mass%.
- the C e 0 2 vitreous antimicrobial agent containing more than 5 wt%, the proportion of other vitreous antimicrobial component is relatively essential is decreased, or summer antimicrobial effect is hardly expressed, glass framework forming component In some cases, it may be difficult to glass. On the other hand, when Ce 2 is not contained, the glass itself may be easily colored.
- the vitreous antibacterial agent in the present invention is difficult to vitrify because of a small amount of a glass skeleton forming component. Sometimes.
- the addition of Ag 2 ⁇ ⁇ which is easily reduced tends to cause difficulty in coloring and vitrification. Therefore, by adding a specific oxidizing agent to the vitreous antibacterial agent raw material mixture, it is possible to reduce the Ag 2 ⁇ ⁇ ⁇ and to prepare a vitreous antibacterial agent without coloring and stable antibacterial activity.
- this oxidizing agent examples include ammonium nitrate, sodium nitrate, zinc nitrate, silver nitrate, barium nitrate, calcium nitrate, nitrate such as calcium nitrate, antimony oxide, and arsenic compounds, but are not safe and remain in the glass. Nitrate is most preferred because it has no effect.
- the mixing ratio of this oxidizing agent to the glassy antibacterial agent is preferably 20% by mass or less based on the glass component.
- Glass component essential in the present invention A g 2 0, Z N_ ⁇ , S I_ ⁇ 2, B 2 0 3, but like Al force Li earth metal oxides and N a 2 ⁇ , each glass component If is within the composition range of the present invention, other glass-forming components can be added as desired. However, A 1 2 ⁇ 3 and P 2 0 5 is a tendency to reduce the hot water resistance of the vitreous antimicrobial agent of the present invention is a high damage undesirable components.
- Z R_ ⁇ 2, T I_ ⁇ 2 include optionally, L i 2 0 and K 2 0 and so-called "modified component" such as a fluorine compound such as fluoride Natoriumu and aluminum fluoride as appropriate It can be contained.
- the hot water resistance of the glass is lowered or the present invention is not effective.
- the content in the glass component is preferably set to 2% by mass or less, more preferably 1% by mass or less, because characteristics in the invention may be impaired.
- the glassy antibacterial agent of the present invention is blended with a resin, it is usually used in the form of a powder. Generally, it is preferable that the average particle diameter is 30 im or less due to dispersion processing into the resin.
- the glassy antibacterial agent of the present invention has an average particle size of from 15 to 15 m, since the finer the particle size, the easier it is to cause resin discoloration and a tendency to cause poor workability due to secondary aggregation and the like. More preferably, Further, in the vitreous antibacterial agent of the present invention, a lump formed by cooling after melting is used. If the particle size of the glass is adjusted by grinding, coarse particles may be mixed. Therefore, it is preferable to remove the coarse particles by passing through a sieve after the pulverization.
- the average particle size refers to an average particle size based on volume measured by a laser diffraction method.
- a known production method can be employed.
- a glass raw material mixture or a mixture obtained by adding an oxidizing agent to this raw material mixture is melted at 900 to 170 ° C. in a melting furnace, and then the melt is quenched to obtain a mixture.
- the desired glass powder can be obtained by crushing the lump glass.
- Antibacterial agent of the present invention in order to exhibit to the excellent antibacterial properties compared with the conventional, often containing Yuryou of Z N_ ⁇ , S i 0 2 and B 2 ⁇ 3 concentration prior a glass skeleton forming component Vitrification may be difficult, especially during mass production at commercial level, as it is lower than glassy antibacterial agents. From this, a glassy material can be easily obtained by melting at an appropriate melting temperature and using a quenching means suitable for the cooling characteristics of the melt. If the cooling speed is low, some of the raw material components may precipitate and become colored, or the glass may become partially non-glass, resulting in a non-uniform composition.
- the cooling effect In order to enhance the cooling effect, it is effective to increase the contact area between the melt and the cooling body.For example, it is necessary to pass the glass melt at high speed through a metal nozzle cooled by a coolant such as water. Thus, an extremely large cooling effect can be obtained, and if this cooling method is used, vitrification becomes easy. Further, when cooled by this method, the glass that has come out between the rollers is formed into a thin plate, so that it can be extremely easily crushed into a powder.
- the antibacterial agent of the present invention is kneaded into a resin, the antibacterial performance is exhibited by the antibacterial agent present on the surface of the resin molded product. However, when the resin molded product is subjected to friction, washing or washing, the antibacterial agent is not used. It may fall off from the surface of the resin molded product. When shedding is significant, the antibacterial effect decreases, and the effect may disappear in a very short time.
- the antibacterial agent of the present invention When the antibacterial agent of the present invention is kneaded into a resin or the like, the dispersibility of the antibacterial agent and the antibacterial agent from the surface of the resin composition are improved by improving the adhesion or adhesion between the antibacterial agent and the resin. Can be prevented from falling off.
- a surface treating agent such as a silane coupling agent silicone oil.
- the surface treatment agent used in the present invention may be appropriately selected depending on the application, the type of resin, the processing method, and the like, and any treatment agent conventionally used for surface treatment of inorganic powders may be used. Yes, there is no particular limitation.
- the surface treatment agent examples include vinylsilanes such as pinyltriethoxysilane and vinyltrimethoxysilane, and (meth) acryloxysilanes such as a-methacryloxypropyltrimethoxysilane and a-glycidoxypropyltrimethoxysilane.
- Coupling agents such as glycidoxysilanes, tetraethoxysilane, tetraisopropoxide titanium, aluminum dimethylate, and silicone oils such as dimethyl silicone, methyl phenyl silicone, methyl hydrogen silicone, reactive silicone, and non-reactive silicone And the like.
- the surface treatment method is not particularly limited, and may be any method conventionally known as a surface treatment method for inorganic powders. Examples include dry, wet, spray, and gasification methods.
- As an efficient surface treatment method there is a method in which when a glass is pulverized into a powder, a mixture obtained by mixing a surface treatment agent together with a lump of glass is pulverized by a pulverizer. Using this method, surface treatment can be performed at the same time.
- the antibacterial agent of the present invention can be used alone, but when used in combination with other antibacterial agents, the antibacterial properties can be further enhanced to meet various processing and required performance.
- an inorganic compound carrying silver and / or zinc or an organic antibacterial agent can be used.
- the inorganic compounds that support silver and / or zinc include the following. That is, inorganic adsorbents such as activated alumina and silica gel, inorganic ion exchangers such as zeolite, calcium phosphate, zirconium phosphate, titanium phosphate, potassium titanate, hydrated bismuth, hydrated zirconium, and hydrotalcite are used. is there.
- the addition of zinc oxide or a vitreous antibacterial agent having a different glass composition from the vitreous antibacterial agent of the present invention may have a further improved antibacterial effect by blending one having a different particle size or solubility.
- an organic antibacterial agent or a bioproofing agent by adding an organic antibacterial agent or a bioproofing agent, the effect can be improved quickly and the anti-capillary effect can be improved.
- organic antibacterial agent and the like examples thereof include the following. Quaternary ammonium salt compounds, glycerin fatty acid esters (eg, fatty acid monoglycerides), biguanide compounds, bronopol, phenolic compounds Compounds, anilide compounds, iodine compounds, imidazole compounds, thiazole compounds, isothiazolone compounds, triazine compounds, nitrile compounds, chitosan, troborone compounds and organometallic compounds (zinc pyrithione, OBPA) There is.
- additives may be added to the antibacterial agent of the present invention as needed in order to improve the processability of kneading into resin and other physical properties.
- pigments such as zinc oxide and titanium oxide
- inorganic ion exchangers such as zirconium phosphate zeolite
- dyes antioxidants, light stabilizers, flame retardants, antistatic agents, foaming agents, and enhanced impact resistance.
- an antimicrobial resin composition By blending the antimicrobial agent of the present invention with a resin, an antimicrobial resin composition can be easily obtained.
- the type of resin that can be used is not particularly limited, and may be any of a natural resin, a synthetic resin, and a semi-synthetic resin, and may be any of a thermoplastic resin and a thermosetting resin.
- Specific resins may be molding resins, fiber resins, or rubbery resins, such as polyethylene, polypropylene, chloride chloride, ABS resin, AS resin, MBS resin, nylon resin, polyester, and polychlorinated resin.
- the antibacterial agent of the present invention can be compounded with fibers such as natural fibers to produce antibacterial fibers.
- the mixing ratio of the antibacterial agent of the present invention in the antibacterial resin composition of the present invention is preferably 0.35 to 5 parts by mass, more preferably 0.1 to 2.0 parts by mass, per 100 parts by mass of the antibacterial resin composition. 0 parts by mass is more preferred.
- the amount is less than 0.3 parts by mass, the antibacterial property of the antibacterial resin composition is insufficient.
- the amount is more than 5 parts by mass, the antibacterial effect is hardly improved, which is uneconomical, and the physical properties of the resin may be significantly reduced.
- any known method can be adopted as a processing method of blending the antibacterial agent of the present invention with a resin to form a resin molded product.
- a processing method of blending the antibacterial agent of the present invention with a resin to form a resin molded product For example, (1) an impregnating agent for facilitating adhesion between the antibacterial agent powder and the resin; a dispersant for improving the dispersibility of the antibacterial agent powder; using a pelletized resin or a powdery resin with a mixer; A method of directly mixing, (2) a method of mixing as described above, forming the mixture into a pellet with an extrusion molding machine, and then compounding the molded product with a pellet resin;
- the antibacterial agent is converted into a high-viscosity liquid such as a polyol.
- any known processing techniques and machines can be used in accordance with the characteristics of various resins, and mixing and mixing while heating and pressurizing or depressurizing at an appropriate temperature or pressure.
- it can be easily prepared by a kneading method, and the specific operation thereof may be performed by a conventional method, such as lump, sponge, film, sheet, thread, pipe, or a composite thereof. It can be formed into a form.
- the antimicrobial product obtained in this manner has excellent antimicrobial properties and discoloration resistance, which are the components of the antimicrobial agent, so that when the antimicrobial agent and the resin are mixed, The antibacterial resin composition does not deteriorate during storage or use.
- the use form of the antibacterial agent of the present invention is not particularly limited, and is not limited to being blended with a resin molded product or a polymer compound. It can be appropriately mixed with other components or combined with other materials depending on the application for which anti-capi, anti-algal and anti-bacterial properties are required. For example, it can be used in various forms such as powder, powder dispersed liquid, granular, aerosol, and liquid.
- the antibacterial agent of the present invention can be used in various fields requiring antifungal, antialgal, and antibacterial properties, that is, electrical appliances, kitchen products, textile products, house building materials products, toiletry products, paper products, toys, leather products, It can be used as stationery and other products. More specific examples include appliances such as dishwashers, dish dryers, refrigerators, washing machines, pots, TVs, personal computers, boombox, cameras, video cameras, water purifiers, rice cookers, vegetable cutters, registers, There are futon dryers, fax machines, ventilation fans, air conditioners, and other kitchen products. There are rice scoop, paul, mizukiri-an, triangular corner, yuzushireir, gohan-an, drainer bag, etc.
- Textile products include shower curtains, futon cotton, air-conditioning filters, stockings, socks, towels, sheets, futon covers, pillows, gloves, clothing, curtains, omu, bandages, masks, sportswear, etc.
- Products include decorative panels, wallpapers, floorboards, window films, handles, carpets, mats, artificial marble, handrails, joints, tiles, waxes, and others.
- Toiletries include toilet seats, bathtubs, tiles, pots, trash, toilet brushes, bath lids, pumice stones, stone containers, bath chairs, clothes ovens, showers, wash basins, and paper products.
- wrapping paper medicine wrapping paper, medicine boxes, sketchbooks, medical records, notebooks, origami, etc.
- Toys include dolls, stuffed animals, paper clay, blocks, puzzles, etc.
- leather products include shoes, shinto, belts, watch bands, and other interior goods, chairs, groups, hanging leather, etc.
- Sttationary items include pole pens, mechanical pens, pencils, erasers, crayon, paper, notebooks, and flexible items. Discs, rulers, sticky notes (eg post-it), staples, etc.
- Vitreous antimicrobial agent of the present invention containing a high concentration of Z N_ ⁇ and an appropriate amount of A g 2 ⁇ has a high antibacterial effect are useful as antibacterial agents capable of coping with various resins types.
- ZnO has an effect on a wide range of resin types and an effect on Staphylococcus aureus. Easy, A g 2 0 is particularly effective is easily expressed tendency in E. coli in Orefuin resins, species in the resin type.
- An antibacterial agent containing both of these antibacterial components at high concentrations is considered to exhibit a high Fanglia effect.
- Example 2 600 kg of a glass raw material composition having the composition of Example 2 shown in Table 1 was operated in the same manner as in Example 1 to obtain a vitreous antibacterial agent powder.
- Comparative Examples 1, 2, 5 and 6 were carried out in the same manner as in Example 1 except that a glass raw material composition (each 10 O kg) having the composition shown in Table 1 was used to obtain a vitreous powder.
- a glass raw material composition each 10 O kg
- Comparative Examples 3, 4, 7, 8 and 9 were manufactured in the same manner as in Example 1 except that a glass raw material composition having the composition shown in Table 1 was used, and a vitreous powder was obtained.
- Comparative Examples 3 and 4 the glass was partially colored yellow during cooling after melting, and in Comparative Examples 8 and 9, the entire glass was colored pale yellow during cooling after melting.
- colored glass is used for white to light colored resin processed products, it changes the color of the resin processed product to yellow, so in many cases it cannot actually be used, but various evaluations were carried out. did.
- Example 3 Preparation of test molding plate, coloring property, antibacterial property test, hot water resistance test
- polypropylene resin Glycol-co-propylene resin manufactured by Grand Polymer Co., Ltd.
- Examples 1 and 2 and Comparative Example 1 were used.
- a comparative molding plate (No. a) was injection-molded in the same manner using only polypropylene resin without any glass.
- the antibacterial activity (initial antibacterial effect and antibacterial effect after immersion in warm water) of the molded plate was evaluated in accordance with JIS Z2801.
- the specific operation of the method for evaluating antimicrobial activity is as follows.
- the surviving bacteria on the sample are washed out with 10 ml of a culture medium for measuring the number of bacteria (SCD LP liquid medium).
- the number of viable cells was measured by the pour plate method using a medium (37 ⁇ , 2 days) and converted to the number of viable cells per sample.
- the antibacterial evaluation results obtained as described above were compared with the difference between the logarithmic value of the viable cell count of each molded plate and the logarithmic value of the viable cell count of the comparative molded plate No. a for each resin. And are shown in Table 2. The difference between the increase and decrease values indicates that the larger the value, the higher the antibacterial effect.
- the number of bacteria immediately after the inoculation was 2.0 ⁇ 10 5 for E. coli and 3.7 ⁇ 10 5 for Staphylococcus aureus per plate, indicating the production of E. coli and Staphylococcus aureus on the molded plate No. a for comparison. number of bacteria are each, 1. 5 X 10 7, 2. 7 X 1 0 5, a comparative molding plate after the plate No. ⁇ 16 hour immersion treatment in deionized water for 50 ° C N o.
- the viable cell counts of Escherichia coli and Staphylococcus aureus were 1.3 ⁇ 10 7 and 2.6 ⁇ 10 5 , respectively.
- Each molded plate was immersed in deionized water at 50 for 16 hours.
- the antimicrobial activity was similarly evaluated using the molded plate after the hot water immersion treatment as a sample.
- the results are shown in Table 2. Compared with the initial effect, it is possible to determine the hot water resistance of the antibacterial effect based on the degree of decrease in the antibacterial effect after the hot water immersion treatment. In addition, the color tone of each molded plate after the hot water test was visually observed.
- the molded plates (Nos. 1 and 2) containing the antibacterial agents composed of the glasses of Examples 1 and 2 of the present invention had excellent performance in both antibacterial properties and coloring resistance.
- the molding plate containing a combination of antibacterial agent made of glass of Comparative Example 3 containing a large amount of S i 0 2 (No. 5)
- the initial effect is anti-bacteria after hot water test
- the effect was significantly reduced.
- the color tone of the molded plate after the hot water test was slightly yellow.
- the antimicrobial agent of the present invention contains P 2 O 5 and B 2 O. From the glass of Comparative Example 5 containing no The molded plate containing the antibacterial agent (No. 7) had a sufficient antibacterial effect, but the molded plate turned yellow after the hot water test.
- the molded plate (No. 8 or 9) containing the antibacterial agent composed of the glass of Comparative Example 6 or 7 containing a large amount of alkaline earth metal oxide or Na 20 was Although there was an initial antibacterial effect, the antibacterial effect decreased after the hot water test, and the color tone of the molded plate was slightly yellow.
- the glass of Comparative Example 8 or 9 containing a large amount of Z ⁇ or Ag 2 ⁇ is colored, and the molded plates (Nos. 10 and 11) containing these antibacterial agents are Although the antibacterial effect was sufficient, the color tone of the molded plate was yellow.
- the silver- and zinc-containing glassy antibacterial agent of the present invention can be produced at a commercial level without coloring.
- the antibacterial agent of the present invention has a high antibacterial effect, can maintain the antibacterial effect for various resin types for a long time, and has color resistance, so that the antibacterial agent used in a wide range of fields can be used. It is extremely useful as an agent.
- an antibacterial resin composition having excellent durability such as antibacterial properties, discoloration resistance and hot water resistance can be easily obtained.
- antibacterial products containing the antibacterial agent of the present invention are excellent in antibacterial properties, discoloration resistance and durability.
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- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Agronomy & Crop Science (AREA)
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- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Geochemistry & Mineralogy (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/543,100 US7514093B2 (en) | 2003-01-24 | 2004-01-26 | Vitreous antimicrobial agent and antimicrobial product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-016274 | 2003-01-24 | ||
JP2003016274A JP4388282B2 (ja) | 2003-01-24 | 2003-01-24 | 抗菌効果に優れる銀系ガラス質抗菌剤 |
Publications (1)
Publication Number | Publication Date |
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WO2004064524A1 true WO2004064524A1 (ja) | 2004-08-05 |
Family
ID=32767464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/000661 WO2004064524A1 (ja) | 2003-01-24 | 2004-01-26 | ガラス質抗菌剤および抗菌性製品 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7514093B2 (ja) |
JP (1) | JP4388282B2 (ja) |
KR (1) | KR101081785B1 (ja) |
CN (1) | CN1323588C (ja) |
TW (1) | TWI325853B (ja) |
WO (1) | WO2004064524A1 (ja) |
Cited By (1)
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EP1829921A3 (en) * | 2006-01-19 | 2012-02-29 | Bianchi Vending Group S.P.A. | Components of vending machines for food use and method for manufacturing said components |
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CN115594407B (zh) * | 2022-10-20 | 2024-02-06 | 安徽正合雅聚新材料科技有限公司 | 一种以含磷的硼铝硅酸盐玻璃为载体的载银玻璃抗菌剂与抗菌制品 |
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2003
- 2003-01-24 JP JP2003016274A patent/JP4388282B2/ja not_active Expired - Fee Related
-
2004
- 2004-01-19 TW TW093101304A patent/TWI325853B/zh not_active IP Right Cessation
- 2004-01-26 US US10/543,100 patent/US7514093B2/en not_active Expired - Fee Related
- 2004-01-26 WO PCT/JP2004/000661 patent/WO2004064524A1/ja active Application Filing
- 2004-01-26 CN CNB2004800027579A patent/CN1323588C/zh not_active Expired - Lifetime
- 2004-01-26 KR KR1020057013470A patent/KR101081785B1/ko active IP Right Grant
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EP1829921A3 (en) * | 2006-01-19 | 2012-02-29 | Bianchi Vending Group S.P.A. | Components of vending machines for food use and method for manufacturing said components |
Also Published As
Publication number | Publication date |
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JP2004262763A (ja) | 2004-09-24 |
TW200418741A (en) | 2004-10-01 |
US20060127498A1 (en) | 2006-06-15 |
CN1741742A (zh) | 2006-03-01 |
TWI325853B (en) | 2010-06-11 |
US7514093B2 (en) | 2009-04-07 |
JP4388282B2 (ja) | 2009-12-24 |
KR101081785B1 (ko) | 2011-11-09 |
KR20050094457A (ko) | 2005-09-27 |
CN1323588C (zh) | 2007-07-04 |
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