WO2022249909A1 - 抗ウイルス性組成物および抗ウイルス性部材 - Google Patents
抗ウイルス性組成物および抗ウイルス性部材 Download PDFInfo
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- WO2022249909A1 WO2022249909A1 PCT/JP2022/020319 JP2022020319W WO2022249909A1 WO 2022249909 A1 WO2022249909 A1 WO 2022249909A1 JP 2022020319 W JP2022020319 W JP 2022020319W WO 2022249909 A1 WO2022249909 A1 WO 2022249909A1
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- Prior art keywords
- antiviral
- antiviral composition
- shirasu
- inorganic compound
- composition
- Prior art date
Links
- 230000000840 anti-viral effect Effects 0.000 title claims abstract description 121
- 239000000203 mixture Substances 0.000 title claims abstract description 90
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- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 35
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- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 2
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- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
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- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Images
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
- A01N25/12—Powders or granules
-
- 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
- A01N61/00—Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
Definitions
- the present invention relates to antiviral compositions and antiviral members.
- pandemics have rapidly spread in a short period of time due to viruses such as novel coronavirus infection (COVID-19), severe acute respiratory syndrome (SARS), norovirus, bird flu, and bacteria such as O157. it's a problem. Since this threatens human life, countermeasures against it are urgently needed worldwide.
- COVID-19 novel coronavirus infection
- SARS severe acute respiratory syndrome
- norovirus norovirus
- bird flu bird flu
- bacteria such as O157.
- Patent Document 1 Japanese Patent Laid-Open Publication No. 2015-120896
- antiviral agents composed of inorganic oxide fine particles containing antiviral metal components such as silver, copper and zinc.
- Patent Document 2 a polymer substance in which an organic antibacterial agent component is bound to the main chain or side chain, mixed or mixed with the polymer substance Examples include adding a composition containing a bound hydrophilic substance and a curing agent to plastics, fibers, etc., and applying it to masks, filters, paints, and the like.
- metal ions such as silver, copper, and zinc have antibacterial and antifungal effects
- antibacterial metal ions are in the form of metal salts such as silver nitrate. It is added to disinfectants, disinfectants, etc., and is widely used in various fields.
- All antibacterial and antiviral agents show antibacterial and antiviral activity only against bacteria and viruses that adhere to the surface of the antibacterial and antiviral agent, and do not show any effect against bacteria and viruses floating in the air.
- Chemical agents such as hypochlorous acid and hydrogen peroxide are used to eliminate the pathogenicity of airborne microorganisms and viruses, but these chemical agents are harmful to the human body or the environment. There is a problem that the impact on Furthermore, there is a problem that the durability of the effect is low.
- metal salts are limited because they are handled in an aqueous solution, and silver nitrate has a strong mucosal irritant effect on the human body, and there are many problems with its safety.
- the antiviral composition which can adsorb
- An antiviral member can be provided.
- an antiviral composition comprising an inorganic compound having antiviral properties and a porous structure.
- the inorganic compound is composed of shirasu.
- FIG. 4 is a diagram showing an example of an antiviral member according to an embodiment of the invention
- FIG. 4 is a diagram showing an example of an antiviral member according to an embodiment of the invention
- FIG. 4 is a diagram showing an example of an antiviral member according to an embodiment of the invention
- FIG. 4 is a diagram showing the effect of the antiviral composition according to the embodiment of the present invention
- FIG. 4 is a diagram showing the effect of the antiviral composition according to the embodiment of the present invention
- FIG. 4 is a diagram showing the effect of the antiviral composition according to the embodiment of the present invention
- FIG. 4 is a diagram showing the effect of the antiviral composition according to the embodiment of the present invention
- FIG. 4 is a diagram showing the effect of the antiviral composition according to the embodiment of the present invention
- the antiviral composition 1 according to the embodiment of the present invention comprises an inorganic compound 3.
- Inorganic compound 3 has antiviral properties.
- the inorganic compound 3 has a porous structure in which many pores (bubbles) 5 are formed and a large number of minute bubbles are present.
- the antiviral composition 1 (inorganic compound 3) not only adsorbs viruses, but can also eliminate (inactivate) the adsorbed viruses.
- Inorganic compound 3 may have not only antiviral properties but also antibacterial properties.
- the "antiviral composition” may be referred to as an "antimicrobial antiviral composition.”
- the antibacterial and antiviral composition 1 can adsorb not only viruses but also bacteria, prevent growth of the adsorbed bacteria, and kill (sterilize) the adsorbed bacteria.
- the inorganic compound 3 is composed of shirasu (for example, shirasu that has not been subjected to processing such as heat treatment).
- Shirasu 3 is commonly known as white sand deposits, and is a general term for white coarse volcanic eruptions widely distributed in southern Kyushu and secondary deposits derived from them.
- the cooling of high-temperature magma causes crystallization differentiation, and the main components in the magma, SiO 2 , Al 2 O 3 , Fe 2 O 3 , MgO, CaO, Na 2 O, K 2 O, etc., gather together.
- Shirasu 3 was formed by explosive eruption shortly after crystallizing as a mineral, and is composed of approximately 30% crystal mineral and the remaining approximately 70% amorphous volcanic glass.
- This amorphous volcanic glass rapidly releases the volatile components in the magma to form a porous pumice stone, containing 65-73% SiO 2 , 12-16% Al 2 O 3 , and 2% CaO. ⁇ 4%, 3-4% Na 2 O, 2-4% K 2 O and 1-3% iron.
- plagioclase is the most common crystalline mineral, and shisopyroxene, quartz, orthopyroxene, and magnetite are also contained to some extent.
- Shirasu forms the Shirasu Plateau.
- the Shirasu Plateau extends up to 150m thick from Kagoshima Prefecture to southern Miyazaki Prefecture in Japan.
- Shirasu was deposited at once as a large amount of pyroclastic flow, so it does not mix with other soil and forms a thick stratum forming the Shirasu Plateau.
- General soil is a mixture of finely pulverized rocks and various organic substances caused by the action of plants and microorganisms.
- shirasu is powdered magma before it turns into rock, so it contains almost no nutrients (organic substances). It has become a substance. That is, shirasu is a porous material containing 60% to 80% silicic acid with volcanic glass as the main component.
- Takachiho Shirasu (Shirasu grown in Mt. Takachiho, Kyushu) are as follows in terms of % by weight.
- the ignition loss is due to sulfur trioxide (SO3) and was measured according to JIS R5202.
- Silicon (IV) oxide (SiO2) was measured by a combined weight-aggregation spectrophotometry method.
- Aluminum oxide (Al2O3), iron (III) oxide (Fe2O3), titanium (IV) oxide (TiO2), calcium oxide (CaO), magnesium oxide (MgO), sodium oxide (Na2O), potassium oxide (K2O), and manganese oxide (MnO) and phosphorus pentoxide (P2O5) were measured by hydrofluoric acid, nitric acid, and perchloric acid decomposition-ICP emission spectrometry. Chloride ions (Cl-) were eluted according to Environmental Agency Notification No. 13, and the test solution was measured by ion chromatography.
- Shirasu other than Takachiho Shirasu for example, Shirasu from Kagoshima
- those with the same composition as Takachiho Shirasu may be used instead of Takachiho Shirasu.
- shirasu the main components of shirasu are silicic acid and aluminum oxide, including plagioclase, quartz, and titanium oxide.
- silicic acid and aluminum oxide including plagioclase, quartz, and titanium oxide.
- a large number of minute air bubbles are present in the Shirasu particles.
- the dry, powdery whitebait is not suitable for paddy fields because it does not retain water well, and is often treated as troublesome, as it tends to cause landslides during heavy rains.
- Shirasu balloons may be used in place of or in addition to using Shirasu 3 that has not undergone processing such as heat treatment as it is.
- the shirasu balloon is a fine balloon-like material (fine hollow particles) obtained by baking and foaming shirasu at a high temperature of about 1000°C.
- Shirasu Balloon has various features such as colorlessness, harmlessness, low bulk specific gravity, noncombustibility, high melting point, low thermal conductivity, high chemical resistance, moisture absorption, and sound absorption.
- FIG. 1 as the inorganic compound 3, a shirasu balloon, which will be described later in detail, is shown.
- At least one additive selected from a curing agent, a plasticizer, a pigment, a reinforcing agent, a lubricant, an antioxidant, an adhesion imparting agent, and a bonding agent is added to the inorganic compound 3. good too.
- the inorganic compound (especially Shirasu balloon) 3 containing Shirasu as it is has a porous structure in which a large number of bubbles 5 and micropores/mesopores are formed. Most of the surface of the inorganic compound 3 is exposed due to the action of surface tension or the like.
- the additive only covers a small portion of the surface of the inorganic compound 3 .
- the surface of the inorganic compound 3 is not only the outer peripheral surface 7 of the inorganic compound 3 (antiviral composition 1) shown in FIG. It also includes the surfaces 13 of the pores 11 connecting the voids 5 of the .
- the hole 11 also connects the void 5 of the inorganic compound and the outside of the inorganic compound 3 .
- the inorganic compound 3 has an average particle size of 250 ⁇ m or less. More specifically, the average particle size of the inorganic compound 3 is 1 ⁇ m to 250 ⁇ m or less, or 5 ⁇ m to 250 ⁇ m or less, or 10 ⁇ m to 250 ⁇ m or less, or 20 ⁇ m to 250 ⁇ m or less, or 50 ⁇ m to 250 ⁇ m or less, or 100 ⁇ m or more. It is in the form of particles of 250 ⁇ m or less, or 150 ⁇ m to 250 ⁇ m or less.
- the "average particle size" means, for example, the particle size at an integrated value of 50% in the particle size distribution determined by a laser diffraction/scattering method.
- the inorganic compound 3 may be particulate with an average particle size of 200 ⁇ m or less. More specifically, the average particle size of the inorganic compound 3 is 1 ⁇ m to 200 ⁇ m or less, or 5 ⁇ m to 200 ⁇ m or less, or 10 ⁇ m to 200 ⁇ m or less, or 20 ⁇ m to 200 ⁇ m or less, or 50 ⁇ m to 200 ⁇ m or less, or 100 ⁇ m or more. It may be in the form of particles of 200 ⁇ m or less, or 150 ⁇ m to 200 ⁇ m or less.
- the average particle size of this Shirasu Balloon is 145 ⁇ m or less (for example, 5 ⁇ m to 145 ⁇ m or less, more preferably 105 ⁇ m to 145 ⁇ m or less).
- an antiviral member (antibacterial and antiviral member) 17 can be obtained by placing an antiviral composition (antibacterial and antiviral composition 1) on a base material 15. good.
- the form of the antiviral member 17 and the antiviral composition 1 is not particularly limited, and may be fiber, fabric such as nonwoven fabric, mesh, film, coating, thin film, sheet, mass (see FIG. 4), wall, Various shapes such as particles, rods, plates, sponges, solutions, paints, gels, and creams can be mentioned.
- the antiviral composition 1 can also be preferably used by dissolving or dispersing it in water or a mixture of an organic solvent such as alcohol and water and spraying it.
- the antiviral member 17 (antiviral composition 1) may be formed into fibers and used as a fabric.
- the antiviral composition 1 is applied to the surface.
- a fiber (antiviral composition-attached fiber) 21 is created (see FIG. 2).
- the fibers 21 may be made into fabric in the usual manner. Further, by attaching the antiviral composition 1 to an untreated cloth using, for example, an additive, a processed cloth having the antiviral composition 1 on the surface of the cloth may be obtained.
- the above-mentioned processed fabric can easily add antiviral performance to ordinary fabric.
- methods for applying the antiviral composition 1 to the processed fabric include dipping, spraying, printing, and coating.
- the above-mentioned processed fabric includes all fabric structures regardless of whether they are woven fabrics, knitted fabrics, or non-woven fabrics.
- Materials for the fabric include natural fibers such as cotton, hemp, and wool; regenerated fibers such as rayon; semi-synthetic fibers such as acetate and triacetate; and synthetic fibers such as polyester, nylon, acrylic, polypropylene, and polyethylene. .
- the antiviral composition 1 may be included in a coating for coating, or a coating for coating containing the antiviral composition 1 (antiviral composition-containing coating for coating) 23 may be converted into a processed coating ( An antiviral composition-containing processed coating film) 25 may be prepared (see FIG. 3).
- the antiviral composition-containing coating material 23 and the antiviral composition-containing processed coating film 25 prepared from the antiviral composition-containing coating material 23 are formed into a film to form an object 27 to be coated. (corresponding to the base material 15). This makes it possible to easily and extensively impart antiviral performance to the object 27 to be coated.
- the antiviral composition-containing processed coating film 25 also includes a sheet containing the antiviral composition 1 .
- the antiviral composition 1 was applied to the object 27 to be coated by coating, spraying, or the like. After that, a method of drying may be mentioned.
- Materials such as paper, metal, and plastic can be used as the object 27 to be coated, and flat surfaces such as sheets and films and non-flat surfaces such as doorknobs, straps, and handrails can also be used.
- the antiviral composition 1 may also be contained in wall covering materials.
- a wall covering material containing the antiviral composition 1 is used, for example, for interior and exterior wall surfaces of buildings such as houses.
- the wall covering material containing the antiviral composition and the interior and exterior walls made from this wall covering material, it is possible to easily and extensively add antiviral performance to the wall structure.
- the antiviral composition 1 is applied to the base material (object to be coated) that constitutes the wall by coating, spraying, troweling, etc., and then dried. methods and the like.
- the above-mentioned wall structure it can be used for stone walls, brick walls, decorative mortar, diatomaceous earth walls, sand walls, tile walls, natural wood walls, printed decorative plywood, and decorative steel plates.
- applications of the antiviral composition 1 include wall materials, floor materials, curtains, clothes, laundry paste, softeners, soaps, trash cans, food packaging materials, bandages, bandages, filters (air purifiers), bedding ( blankets, duvets, sheets), seat sheets (car seats, train seats, aircraft seats), sponges (for cleaning, washing dishes, filtering materials), diapers, cleaning tools, pollution diffusion prevention materials, sprays, and the like.
- the block-shaped antiviral composition 1 shown in FIG. 4 may be molded into an appropriate shape, and the molded product may be used as an ornament to be placed indoors or a monument to be installed outdoors.
- the Shirasu plaster wall using the antiviral composition 1 is also created in the same way as the Satsuma Nakakirishima wall using the antiviral composition 1.
- the Shirasu plaster wall consists of 80% (wt%) shirasu (whitebait) dried after removing impurities, 15% (wt%) slaked lime, and 4% (wt%) reinforcing material such as straw or hemp. %) and 1% (wt %) of a pigment coloring material are mixed with an appropriate amount of water and kneaded to obtain a paste.
- FIG. 5 shows the result of measuring the infectivity titer (phage Q ⁇ ) on the surface of the test piece.
- the phage infectivity titer PFU/test piece
- Fig. 6 shows the results of measuring the infectivity titer (phage Q ⁇ ) inside the test piece.
- phage Q ⁇ infectivity titer
- FIG. 7 shows the measurement results of the infectivity titer (feline coronavirus) on the surface of the test piece.
- the feline coronavirus infectious titer (TCID50/test piece) is between 10 5 and 10 6 . Even with the passage of time, in the wallpaper according to the comparative example, almost no inactivation of feline coronavirus was observed. A reduction of 98% or more in the feline coronavirus infection titer is observed on the Shirasu plaster wall. Note that the contact time in FIG. 7 is 1 minute.
- FIG. 8 shows the results of measuring the infectivity titer (feline coronavirus) inside the test piece.
- the feline coronavirus infectious titer (TCID50/test piece) is between 10 5 and 10 6 .
- TCID50/test piece the feline coronavirus infectious titer
- TCID50/test piece the feline coronavirus infectious titer
- the contact time in FIG. 8 is also 1 minute.
- the inorganic compound 3 has antiviral properties and has a porous structure.
- viruses floating in the air can be physically adsorbed to the surface (including micropores and mesopores) of the inorganic compound 3 and disappear.
- the antiviral composition 1 also has antibacterial properties, it can also adsorb bacteria floating in the air on the surface, prevent the growth of the bacteria, and kill the adsorbed bacteria. .
- the inorganic compound 3 is composed of shirasu, so the antiviral composition 1 can be produced from common materials at low cost.
- shirasu which is mainly composed of SiO 2 and Al 2 O 3 , as a material for expressing antibacterial and antiviral properties, it can absorb and eliminate bacteria and viruses floating in the air. is obtained, and high immediate effect can be realized.
- the antiviral composition 1 contains Shirasu, the growth of bacteria and viruses can be suppressed. It is also superior in handleability and safety compared to conventional antibacterial and antiviral materials.
- the antiviral composition 1 at least one additive selected from a curing agent, a plasticizer, a pigment, a reinforcing agent, a lubricant, an antioxidant, an adhesion imparting agent, and a bonding agent is added to the inorganic compound 3.
- the form of the antiviral composition 1 can be appropriately changed, and the usability of the antiviral composition 1 can be improved.
- the additive is added, most of the surface of the inorganic compound 3 is exposed, so functions of the antiviral composition 1 such as adsorptivity are hardly impaired.
- the average particle size of the inorganic compound 3 is 250 ⁇ m or less. can be expressed. In addition to being excellent in handleability and safety, even a small amount can exhibit excellent antibacterial and antiviral performance by dispersing or dissolving in a solvent. When the average particle size is 250 ⁇ m or less, the effect can be exhibited in as short a time as 1 minute after contact with the virus.
- the antiviral composition 1 if the antiviral composition 1 is placed on the base material 15, the form of the antiviral member provided with the antiviral composition 1 can be appropriately changed, and the antiviral composition 1 can be used. The usability of the composition 1 (antiviral member) can be improved.
- the antiviral composition which can adsorb
- the effect is that an antiviral member can be provided.
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
シラスは、シラス台地を形成しているものである。シラス台地は、日本国の鹿児島県から宮崎県南部にかけて最大150mの厚さになっている。
近年、シラスの表面で酸化還元反応が起こり、これにより、シラスの抗菌抗ウイルス性が確認された。また、シラス3の粒子内には、詳しくは後述するシラスバルーンほどではないにしろ、微小な気泡5が多数存在している。これにより、シラス3は、多孔質な構造になっており、そのミクロ孔・メソ孔で物理吸着が起き、空気中のウイルス等に対して、吸着性を発揮することができる。
図2や図3で示すように、抗ウイルス性組成物(抗菌抗ウイルス性組成物1)を基材15に設置することで、抗ウイルス性部材(抗菌抗ウイルス性部材)17を得てもよい。
得られた抗ウイルス性組成物1を用いた薩摩中霧島壁や白洲漆喰壁を、たとえば厚み約12mm程度の石膏ボード、ベニヤ板、コンクリート板、モルタル耐水合板、石綿板等の下地の上に厚み約5mm程度にコテ等で塗布さる。この後、乾燥させることにより抗菌抗ウイルス性壁材を得た。なお、抗菌抗ウイルス性壁材から一辺が1.0cmの平面正方形状を切り出すことで試験片とした。
本国際特許出願は米国指定に関し、2021年5月28日に出願された日本国特許出願第2021-089882号について米国特許法第119条(a)に基づく優先権の利益を援用し、当該開示内容を引用する。
Claims (5)
- 抗ウイルス性を備え、多孔質構造を有する無機化合物を有する抗ウイルス性組成物。
- 前記無機化合物はシラスで構成される請求項1に記載の抗ウイルス性組成物。
- 前記無機化合物に、硬化剤、可塑剤、顔料、補強剤、滑剤、酸化防止剤、密着性付与剤、接合剤のうちの少なくとも1つの添加剤が添加される請求項1または請求項2に記載の抗ウイルス性組成物。
- 前記無機化合物は、この平均粒子径が250μm以下の粒子状である請求項1~3のいずれか1項に記載の抗ウイルス性組成物。
- 基材と、前記基材に設置されている請求項1~4のいずれか1項に記載の抗ウイルス性組成物と、を有する抗ウイルス性部材。
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KR1020237042979A KR20240005960A (ko) | 2021-05-28 | 2022-05-16 | 항바이러스성 조성물 및 항바이러스성 부재 |
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JP2021-089882 | 2021-05-28 | ||
JP2021089882A JP2022182364A (ja) | 2021-05-28 | 2021-05-28 | 抗ウイルス性組成物および抗ウイルス性部材 |
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Citations (3)
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JP2007537203A (ja) * | 2004-05-12 | 2007-12-20 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | 抗菌性酸化ケイ素フレーク |
JP2016193803A (ja) * | 2015-03-31 | 2016-11-17 | 住友大阪セメント株式会社 | ドロマイトの多孔質化方法、多孔質ドロマイト材の製造方法、該製造方法により得られた多孔質ドロマイト材及び該多孔質ドロマイト材の利用方法 |
JP2022024524A (ja) * | 2020-07-28 | 2022-02-09 | 株式会社エーアンドエーマテリアル | 抗菌消毒性担持体及びその製造法 |
-
2021
- 2021-05-28 JP JP2021089882A patent/JP2022182364A/ja active Pending
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2022
- 2022-05-16 KR KR1020237042979A patent/KR20240005960A/ko unknown
- 2022-05-16 WO PCT/JP2022/020319 patent/WO2022249909A1/ja active Application Filing
- 2022-05-18 TW TW111118541A patent/TW202312873A/zh unknown
Patent Citations (3)
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JP2007537203A (ja) * | 2004-05-12 | 2007-12-20 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | 抗菌性酸化ケイ素フレーク |
JP2016193803A (ja) * | 2015-03-31 | 2016-11-17 | 住友大阪セメント株式会社 | ドロマイトの多孔質化方法、多孔質ドロマイト材の製造方法、該製造方法により得られた多孔質ドロマイト材及び該多孔質ドロマイト材の利用方法 |
JP2022024524A (ja) * | 2020-07-28 | 2022-02-09 | 株式会社エーアンドエーマテリアル | 抗菌消毒性担持体及びその製造法 |
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ANONYMOUS: "Kaken's Iodine Disinfectants: Sterilization of 1 in 10 million parts in 10 minutes", NIHON KEIZAI SHIMBUN. KITA-KANTO REGIONAL PAGE, NIHON KEIZAI SHIMBUN, JP, JP, pages 1 - 1, XP009542642, Retrieved from the Internet <URL:https://www.nikkei.com/article/DGKKZO54641920R20C20A1L60000/> * |
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KR20240005960A (ko) | 2024-01-12 |
JP2022182364A (ja) | 2022-12-08 |
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