WO2007055003A1 - 耐湿性脱酸素剤 - Google Patents
耐湿性脱酸素剤 Download PDFInfo
- Publication number
- WO2007055003A1 WO2007055003A1 PCT/JP2005/020540 JP2005020540W WO2007055003A1 WO 2007055003 A1 WO2007055003 A1 WO 2007055003A1 JP 2005020540 W JP2005020540 W JP 2005020540W WO 2007055003 A1 WO2007055003 A1 WO 2007055003A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxygen
- oxygen scavenger
- iron powder
- weight
- parts
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/046—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing halogens, e.g. halides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
- A23L3/3427—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O in which an absorbent is placed or used
- A23L3/3436—Oxygen absorbent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
Definitions
- the present invention relates to an oxygen scavenger having moisture resistance. More specifically, the present invention relates to an improved oxygen scavenger composition, oxygen scavenger package, and oxygen scavenging method that can maintain oxygen absorption performance over a long period of time even under high humidity where the oxygen absorption capacity per apparent volume is large. . Background art
- An oxygen scavenger using an oxidation reaction of iron powder is stored in a gas barrier container together with an article such as food to remove oxygen in the container, thereby maintaining the quality and freshness of the article such as food.
- This commercially available oxygen scavenger uses the reaction between iron powder and oxygen in the presence of moisture.
- halogenated salts such as sodium chloride and calcium chloride are usually used.
- Patent Document 1 discloses an oxygen scavenger to which an inorganic filler is added from the viewpoint of increasing the absorption rate and amount of metal and oxygen and handling.
- Patent Document 1 Japanese Patent Publication No.54-476
- the present invention solves the above-mentioned problems of oxygen scavengers in the prior art and provides oxygen absorption performance over a long period of time even in a high humidity atmosphere where the oxygen absorbing capacity per unit volume of the oxygen scavenger composition is high.
- An object is to provide an oxygen scavenger that can be maintained.
- the present inventors have found that an oxygen scavenger composition to which a water repellent is added can be used in an oxygen scavenger package even when used under high humidity. It has been found that the invaded moisture becomes water droplets on the oxygen scavenger composition and can maintain the oxygen scavenging ability over a long period of time without covering the oxygen scavenger itself, and the present invention has been reached.
- the present invention relates to an oxygen scavenger composition to which 100 parts by weight of iron powder, 0.0 to 20 parts by weight of metal halide and 0.01 to 5 parts by weight of a water repellent are added.
- the metal sarcophagus is preferably a fatty acid alkali metal salt and the fatty acid alkaline earth metal salt, and particularly preferably the fatty acid alkaline earth metal salt.
- the alkaline metal salt of stearic acid and the alkaline earth metal salt of stearic acid are preferred.
- the present invention uses a high-humidity oxygen absorber package formed by packaging the oxygen absorber composition with a breathable packaging material without blending an inorganic filler, and the oxygen absorber package. 70 to: 100.
- the present invention relates to a method for deoxidizing a space inside a gas barrier container under high humidity at / oRH.
- the oxygen scavenger composition of the present invention can maintain the oxygen absorption capacity under high humidity without adding an inorganic filler, it is 70 to 100% RH, particularly saturated or nearly saturated. Maintains oxygen absorption performance even when used in an atmosphere. Further, since it is not necessary to add an inorganic filler, the apparent usage capacity per oxygen absorption amount of the oxygen scavenger composition does not increase.
- the oxygen scavenger package of the present invention can be made compact, exhibit oxygen absorption performance over a long period of time even under high humidity, and can store medicines, foods, etc. over a long period of time.
- the oxygen-absorbing performance in a high humidity state can be exhibited without adding an inorganic filler.
- the apparent volume of the oxygen scavenger composition that exhibits the same amount of oxygen absorption is reduced from the apparent volume of the conventional oxygen scavenger composition (containing the inorganic filler).
- the amount of packaging material used when an oxygen scavenger package is obtained can be reduced.
- the iron powder that is the main component of the oxygen scavenger is not particularly limited as long as unoxidized iron is exposed on the surface. Reduced iron powder, electrolytic iron powder, sprayed iron powder, etc. are preferably used. It is done. In addition, powdered products such as pig iron and cut products can be used.
- an iron powder having an average particle diameter of 1 mm or less, preferably 500 / m or less, more preferably 100 ⁇ m or less is usually used for good contact with oxygen.
- Metal halides are oxidation promoters that help to oxidize iron powder. Salts, sodium chloride, calcium chloride, magnesium chloride, sodium bromide, odors are preferred for alkali metal or alkaline earth metal halides. Examples include calcium chloride.
- the amount of metal halide used for iron powder is in the range of 0.0:! To 20 parts by weight per 100 parts by weight of iron powder.
- the water repellent added to improve the retention of oxygen scavenging ability is a substance having a water repellent function, and metal sarcophagus is particularly preferable.
- metal stalagmite metal salts of fatty acids, rosin acid and naphthenic acid are preferred.
- fatty acids used in the metal sarcophagus include butyric acid, cabronic acid, strength prillic acid, strength puric acid, lauric acid, myristic acid, palmitic acid and stearic acid, and stearic acid is preferred.
- Specific examples include barium stearate, potassium stearate, sodium stearate, calcium stearate, zinc stearate, aluminum stearate, and magnesium stearate.
- the metal forming the salt is preferably an alkali metal or an alkaline earth metal, particularly an alkali metal salt of a fatty acid or an alkaline earth metal salt of a fatty acid.
- alkali metal stearate and alkaline earth metal stearate are particularly preferred.
- alkaline earth metal stearate such as calcium stearate and magnesium stearate improves the ability retention performance when added. High safety is preferable because of its high safety. These may be used alone or in combination.
- the water repellent is appropriately selected according to the water repellent used, the application period, and the moisture content of the applied stored article. 0:! ⁇ 5 parts by weight, preferably 0.05 ⁇ :! parts by weight are added. If the addition amount is too large, the iron powder cannot effectively use the water necessary for deoxygenation, which decreases the oxygen absorption rate and increases the cost, which is not preferable.
- the oxygen scavenger composition of the present invention consists essentially of iron powder as a main component, a metal halide as an oxidation accelerator, and a water repellent.
- Iron powder, metal halide and water repellent are packaged in a breathable packaging material as a composition.
- a method of mechanically mixing iron powder, metal halide, and water repellent a method of mixing a water repellent after attaching a metal halide to iron powder, and a metal halide and a water repellent to iron powder.
- it can be produced by a method in which iron powder, metal halide and water repellent are sufficiently mixed.
- the oxygen scavenger composition of the present invention can contain additives as necessary within a range not impairing the effects of the present invention.
- additives for example, silica, alumina, activated carbon, baking soda and the like can be mixed as appropriate for the purpose of preventing odor, suppressing dust, resistance to microwaves, suppressing hydrogen generation, and the like.
- the total amount of additive is preferably 0 to 35 parts by weight, more preferably 0 to 25 parts by weight with respect to 100 parts by weight of the total amount of iron powder and metal halide.
- an inorganic filler such as silica or alumina is added to the conventional oxygen scavenger composition in order to maintain oxygen absorption performance.
- an inorganic filler such as silica or alumina
- the oxygen absorption performance is maintained, so the addition of an inorganic filler such as silica or alumina can be omitted, and the amount of oxygen absorbed The apparent capacity of the hit oxygen scavenger composition can be reduced.
- the oxygen scavenger composition used in the present invention can be filled and packaged using part or the entire surface of a breathable packaging material and used as an oxygen scavenger package.
- the breathable packaging material used at that time is as breathable as possible to obtain a sufficient oxygen absorption effect.
- Wrong packaging materials are desirable. For example, paper such as Japanese paper, Western paper, rayon paper, non-woven fabric using various fibers such as pulp, cellulose, fibers from synthetic resin, plastic fine rubber or perforated materials thereof, or calcium carbonate added. It is possible to raise the strength of a film that has been stretched, such as a stretched microphone-open porous film, or a laminate of two or more selected from these.
- the breathable packaging material is preferably a nonwoven fabric made of polyethylene or a laminate of the nonwoven fabric and the microporous film.
- the oxygen scavenger composition of the present invention can be packaged with a breathable packaging material without blending an inorganic filler into a high-humidity oxygen scavenger package.
- Such an oxygen scavenger package can be used in order to satisfactorily deoxygenate a space inside a gas barrier container under high humidity of 70 to 100% RH, particularly saturated or close to saturation.
- the oxygen scavenger composition of the present invention or the oxygen scavenger package in which the oxygen scavenger composition of the present invention is filled and packaged with a breathable packaging material is sealed and used in a gas barrier container together with a stored article.
- the shape and material of the gas barrier container to be used are not limited as long as it can be sealed and substantially has a gas barrier property, such as a metal can, a glass bottle, a plastic container, and a bag.
- multilayer sheets and films such as polyethylene terephthalate / aluminum vapor deposition / polyethylene, stretched polypropylene / polyvinyl alcohol / polyethylene, polyvinylidene chloride-coated stretched nylon / polyethylene, and nylon-based co-extruded multilayer sheet films.
- Oxygen permeability 0.05-20ml / m 2 '24hr'atm (25 ° C, 50% RH) packaging containers and bags can be used conveniently.
- the oxygen scavenger composition of the present invention suitably deoxygenates even under a high humidity of 70 to 100% RH.
- the oxygen scavenger composition of the present invention is suitably used for applications requiring moisture resistance.
- it is suitable for long-term storage of foods such as rice cakes, cooked rice, ham, and prepared dishes.
- An oxygen scavenger composition was prepared by adding 0.2 g of calcium stearate powder (manufactured by Sakai Chemical Industry Co., Ltd., occupancy rate of 99 wt% of particles having a particle size of 75 ⁇ m or less) and mixing well. The obtained oxygen scavenger composition 1.
- 80 g of air-permeable surface using a non-breathable laminated film made of PET / LLDPE / EVA on one side and a breathable laminated film made of polyethylene nonwoven fabric on one side has a long side of 40 mm X
- a rectangular bag with a short side of 37 mm was filled with a four-sided seal to form an oxygen scavenger package.
- Moisturized wet cotton impregnated with 10 ml of water and the oxygen scavenger package are placed in a 130 mm x 140 mm gas barrier bag (polyvinylidene chloride-coated stretched nylon Z polyethylene laminate film), and the two are separated by a resin net. Sealed with 5 ml of air.
- This sealed bag (hereinafter referred to as a moisture transfer treatment bag) was stored in a constant temperature bath at 35 ° C for 5 days, 7 days or 9 days to cause moisture transfer to the oxygen scavenger under saturated humidity conditions.
- the oxygen scavenger of the present invention achieves complete oxygen scavenging within 24 hours (oxygen concentration within the sealed gas barrier bag is 0.01% or less) after leaving it in a high-humidity atmosphere for 5 days or more. It was confirmed that it was retained.
- An oxygen scavenger and oxygen scavenger package were prepared in the same manner as in Example 1 except that the calcium stearate used in Example 1 was replaced with magnesium stearate, barium stearate, potassium palmitate and sodium laurate, respectively.
- the produced oxygen scavenger package was tested in the same manner as in Example 1 to evaluate the ability to absorb oxygen. Results in Table 1 Shown in The oxygen scavenger of the present invention achieves complete oxygen scavenging within 24 hours (Oxygen concentration in sealed gas bag) is less than 0.01% even after being left in a high humidity atmosphere for 5 days or more. It was confirmed that the ability was retained.
- Example 1 Same as Example 1 except that the same amount of calcium bromide used in Example 1 was replaced with the same amount of calcium bromide, and the amount of calcium stearate added was changed to 0.05 g, 0.5 g or 1. Og.
- An oxygen scavenger and oxygen scavenger package were prepared. The produced oxygen scavenger package was tested in the same manner as in Example 1 to evaluate the ability to absorb oxygen. The results are shown in Table 1.
- the oxygen scavenger of the present invention achieves complete oxygen scavenging within 24 hours (oxygen concentration within the sealed gas barrier bag is 0.01% or less) even after being left in a high-humidity atmosphere for 5 days or more. It was confirmed that it was retained.
- Example 1 An oxygen scavenger and oxygen scavenger package were prepared in the same manner as in Example 1 except that the calcium stearate used in Example 1 was not used.
- Gas barrier bag polyvinyl chloride vinylidene-coated stretched nylon / polyethylene laminate film
- One oxygen scavenger package prepared in the same manner as in Example 1 was directly placed on 1050 g of cooked rice in 220 mm x 330 mm. And sealed. After this sealed container was stored at 25 ° C for 30 days, the oxygen concentration in the sealed container was measured and found to be less than 0.1%, and the flavor of the cooked rice was good. When the oxygen scavenger package was taken out and examined, no generation of soot was observed. The cooked rice that had been in contact with the oxygen scavenger package did not show any abnormal appearance and was tested by the Rodin force method, but no iron reaction was detected.
- the oxygen scavenger composition of the present invention can maintain the oxygen absorption capacity under high humidity without adding an inorganic filler, and even when used in a high humidity atmosphere of about 70 to 100% RH. Maintain absorption performance. Moreover, since it is not necessary to mix
- the oxygen scavenger package of the present invention can be compact and can be used for a long time even under high humidity. It exhibits oxygen absorption performance and can store medicines and foods for a long period of time. Oxygen absorption performance in a high humidity state can be exhibited without blending an inorganic filler, and the apparent volume can be reduced as compared with a conventional oxygen scavenger composition blended with an inorganic filler. As a result, it is possible to reduce the amount of packaging material used in the oxygen scavenger package.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087011006A KR101399135B1 (ko) | 2005-11-09 | 2005-11-09 | 내습성 탈산소제 |
US12/092,996 US7947197B2 (en) | 2005-11-09 | 2005-11-09 | Moisture-resistant deoxidant |
PCT/JP2005/020540 WO2007055003A1 (ja) | 2005-11-09 | 2005-11-09 | 耐湿性脱酸素剤 |
CNA2005800520081A CN101304806A (zh) | 2005-11-09 | 2005-11-09 | 耐湿性脱氧剂 |
EP05806175A EP1952882B1 (en) | 2005-11-09 | 2005-11-09 | Moisture-resistant deoxidant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/020540 WO2007055003A1 (ja) | 2005-11-09 | 2005-11-09 | 耐湿性脱酸素剤 |
Publications (1)
Publication Number | Publication Date |
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WO2007055003A1 true WO2007055003A1 (ja) | 2007-05-18 |
Family
ID=38023013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/020540 WO2007055003A1 (ja) | 2005-11-09 | 2005-11-09 | 耐湿性脱酸素剤 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7947197B2 (ja) |
EP (1) | EP1952882B1 (ja) |
KR (1) | KR101399135B1 (ja) |
CN (1) | CN101304806A (ja) |
WO (1) | WO2007055003A1 (ja) |
Families Citing this family (17)
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US11786036B2 (en) | 2008-06-27 | 2023-10-17 | Ssw Advanced Technologies, Llc | Spill containing refrigerator shelf assembly |
US8286561B2 (en) | 2008-06-27 | 2012-10-16 | Ssw Holding Company, Inc. | Spill containing refrigerator shelf assembly |
AU2009302329B2 (en) | 2008-10-07 | 2015-10-29 | Ssw Advanced Technologies, Llc | Spill resistant surfaces having hydrophobic and oleophobic borders |
MX343584B (es) | 2009-11-04 | 2016-11-10 | Ssw Holding Co Inc | Superficies de equipos de coccion que tienen una estructura para la contencion de derrames y metodos de fabricarlas. |
BR112012023312A2 (pt) | 2010-03-15 | 2019-09-24 | Ross Tech Corporation | desentupidor e métodos de produção de superfícies hidrofóbicas |
BR112013021231A2 (pt) | 2011-02-21 | 2019-09-24 | Ross Tech Corporation | revestimentos super-hidrofóbicos e oleofóbicos com sistemas ligantes de baixo voc |
WO2012169616A1 (ja) * | 2011-06-09 | 2012-12-13 | 三菱瓦斯化学株式会社 | 脱酸素剤組成物、及び、これを用いた脱酸素剤包装体、並びに脱酸素する方法 |
DE102011085428A1 (de) | 2011-10-28 | 2013-05-02 | Schott Ag | Einlegeboden |
CN102511896B (zh) * | 2011-12-02 | 2013-08-07 | 华南理工大学 | 一种双功能快速除湿脱氧剂及其制备方法 |
WO2013090939A1 (en) | 2011-12-15 | 2013-06-20 | Ross Technology Corporation | Composition and coating for superhydrophobic performance |
WO2014003852A2 (en) | 2012-06-25 | 2014-01-03 | Ross Technology Corporation | Elastomeric coatings having hydrophobic and/or oleophobic properties |
JP5626488B2 (ja) | 2012-08-02 | 2014-11-19 | 三菱瓦斯化学株式会社 | 酸素吸収剤の製造方法 |
CN104028209A (zh) * | 2014-06-09 | 2014-09-10 | 应关雄 | 一种水膜吸氧剂及其制备方法 |
EP3281625B1 (en) * | 2015-04-07 | 2020-02-26 | Nipro Corporation | Oral film preparation |
JP6690201B2 (ja) * | 2015-11-20 | 2020-04-28 | 三菱瓦斯化学株式会社 | 脱酸素剤組成物及び脱酸素剤 |
CN109090422A (zh) * | 2018-08-08 | 2018-12-28 | 广东广益科技实业有限公司 | 一种环保脱氧剂及其制备方法 |
EP3900811A4 (en) * | 2018-12-18 | 2022-01-12 | Mitsubishi Gas Chemical Company, Inc. | DEOXIDIZING COMPOSITION |
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2005
- 2005-11-09 CN CNA2005800520081A patent/CN101304806A/zh active Pending
- 2005-11-09 US US12/092,996 patent/US7947197B2/en active Active
- 2005-11-09 EP EP05806175A patent/EP1952882B1/en active Active
- 2005-11-09 KR KR1020087011006A patent/KR101399135B1/ko active IP Right Grant
- 2005-11-09 WO PCT/JP2005/020540 patent/WO2007055003A1/ja active Application Filing
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EP0370802A1 (en) | 1988-11-24 | 1990-05-30 | Sumitomo Chemical Company, Limited | Oxygen absorbing thermoplastic resin sheet |
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Publication number | Publication date |
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KR101399135B1 (ko) | 2014-05-26 |
US7947197B2 (en) | 2011-05-24 |
EP1952882A1 (en) | 2008-08-06 |
CN101304806A (zh) | 2008-11-12 |
EP1952882B1 (en) | 2012-04-11 |
US20090095941A1 (en) | 2009-04-16 |
EP1952882A4 (en) | 2010-03-10 |
KR20080066780A (ko) | 2008-07-16 |
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