WO2006095641A1 - 酸素吸収剤 - Google Patents
酸素吸収剤 Download PDFInfo
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- WO2006095641A1 WO2006095641A1 PCT/JP2006/304045 JP2006304045W WO2006095641A1 WO 2006095641 A1 WO2006095641 A1 WO 2006095641A1 JP 2006304045 W JP2006304045 W JP 2006304045W WO 2006095641 A1 WO2006095641 A1 WO 2006095641A1
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- Prior art keywords
- oxygen
- aluminum
- oxygen absorbent
- absorbent
- aluminum compound
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- 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- A23B2/00—Preservation of foods or foodstuffs, in general
- A23B2/70—Preservation of foods or foodstuffs, in general by treatment with chemicals
- A23B2/704—Preservation of foods or foodstuffs, in general by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B2/708—Preservation of foods or foodstuffs, in general 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
- A23B2/712—Preservation of foods or foodstuffs, in general 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
- A23B2/717—Oxygen absorbent
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- 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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- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0248—Compounds of B, Al, Ga, In, Tl
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- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0281—Sulfates of compounds other than those provided for in B01J20/045
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- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0288—Halides of compounds other than those provided for in B01J20/046
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- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0292—Phosphates of compounds other than those provided for in B01J20/048
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- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0296—Nitrates of compounds other than those provided for in B01J20/04
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- 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- 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
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- 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
- B01J2220/42—Materials comprising a mixture of inorganic materials
Definitions
- the present invention relates to an oxygen absorbent containing a mixture containing aluminum as a main component, an oxygen absorbing method using the mixture, and a heat generation method.
- the present invention relates to an oxygen absorbent that is included when packaging food or the like and can suitably prevent oxidative deterioration of contents.
- oxygen absorbers that can prevent changes and the like are frequently used.
- these oxygen absorbents are, for example, those based on inorganic oxygen absorbents such as iron powder and silicon fine powder, and those based on organic oxygen absorbents such as ascorbic acid and unsaturated fatty acids.
- Patent Document 4 discloses an oxygen absorbent comprising a simple metal, water, and a reaction promoting substance.
- a simple metal an aluminum force is used as an example of a reaction accelerator.
- Aluminum sulfate is mentioned.
- Reference 4 there is no specific disclosure of these combinations in Reference 4.
- Patent Document 5 discloses a method of efficiently generating hydrogen by mixing aluminum and aluminum bemite, which is an aluminum compound, in a spec mill and putting the pelletized water into water. ing.
- This hydrogen generation method is a method of increasing the hydrogen generation efficiency by introducing the above composition into a large amount of water to minimize the diffusion of oxygen. Therefore, there is no disclosure regarding oxygen absorption.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9-117660
- Patent Document 2 Japanese Patent Laid-Open No. 3-137935
- Patent Document 3 Special Table 2001-525449
- Patent Document 4 Japanese Patent Laid-Open No. 54-11089
- Patent Document 5 Special Table 2004-505879
- the present invention provides an oxygen absorbent, an oxygen absorption method, and the like, which have the same characteristics as the prior art, such as easy disposal and non-detection of metal detectors, and have greatly improved oxygen absorption capacity per unit mass of aluminum. It is an object to provide a heat generation method.
- the mixture (X) of aluminum (A) and aluminum compound (B) is an oxygen absorbent that exhibits oxygen absorption performance, and has reached the present invention.
- the present invention is as follows.
- An oxygen absorbent comprising a mixture (X) of aluminum (A) and an aluminum compound (B).
- a bag-like oxygen absorbent in which the oxygen absorbent according to any one of (1) to (12) is enclosed in a breathable bag.
- the substrate is impregnated or coated with the coating type oxygen absorbent ( ⁇ ) described in (15) or (16) above. Cloth oxygen absorber.
- a container comprising the oxygen-absorbing material as described in (17) or (18) above or a lid material thereof.
- An oxygen-absorbing sheet or film comprising at least one layer comprising the resin-based oxygen absorbent (Z) according to (21).
- a container comprising the oxygen-absorbing sheet or film according to (22) or (23).
- the oxygen absorbent in the present invention contains a mixture of aluminum (A) and an aluminum compound (B).
- the oxygen absorbent of the present invention has characteristics of easy disposal, convenience, and non-sensing of metal detector.
- the oxygen absorbent of the present invention exhibits a large oxygen absorption performance because it exhibits the maximum oxygen absorption ability of aluminum. For this reason, since oxygen in the package is removed by adding a small amount, the oxygen absorbent of the present invention is relatively inexpensive.
- the absolute amount of metal used in the package is reduced, it is excellent in that it is possible to inspect for contamination of food without being detected even when the oxygen absorbent is put on a general-purpose metal detector. ing.
- the oxygen absorbent according to the present invention is almost insoluble in a neutral solution such as water, and therefore has excellent hygiene. .
- the mixture (X) can also be used as a heating element using heat generated when oxygen is absorbed in the presence of moisture.
- FIG. 1 is an oxygen absorption curve of oxygen absorbents of examples and comparative examples of the present invention.
- the oxygen absorbent of the present invention contains a mixture (X) of aluminum (A) and an aluminum compound (B). Each of these two substances is in an independent form.
- Aluminum (A) and aluminum compound (B) may be in the form of particles such as powder, fibers, or porous bodies.
- aluminum (A) and aluminum compound (B) may be in the form of a solution as long as they can be dispersed in a solvent that can contribute to oxygen absorption reaction such as water.
- Fig. 1 shows the oxygen absorption curve of each oxygen absorbent, and the vertical axis represents the amount of oxygen absorbed (V) (cc / g) after the lapse of an arbitrary time calculated by the evaluation method described later.
- the axis is time.
- (A) in 1 is the oxygen absorption curve of the oxygen absorbent of the present invention (Example 1)
- (b) is the oxygen absorption curve of the oxygen absorbent consisting of aluminum and calcium oxide
- (c) is The oxygen absorption curve of an oxygen absorbent consisting of aluminum and sodium chloride (Comparative Example 2)
- (d) shows the oxygen absorption curve of an iron-based oxygen absorbent (Comparative Example 3).
- the oxygen absorption curve (a) of the oxygen absorbent of the present invention shown in Fig. 1 has the largest gradient from 10 to 15 minutes after the start of measurement.
- the oxygen absorption rate obtained from the tangent of the oxygen absorption curve (a) at that time is 160 cc / g'hr.
- Aluminum (A) and aluminum compound (B) are each independently Although it does not cause an oxygen absorption reaction even if it is put in water, the oxygen absorber according to the present invention containing the mixture (X) is exposed to oxygen in the presence of water, so that aluminum can be obtained in an extremely short time of 10 to 15 minutes. It is surprising that mu (A) oxidizes violently.
- the oxygen absorbent of the present invention absorbed 250 to 300 cc / g of oxygen after 3 hours. Eventually, in 60 hours, the oxygen absorption amount of the oxygen absorbent of the present invention almost reached saturation and became 515 cc / g. This oxygen absorption is 83 of the theoretical maximum oxygen absorption (620 ccZg) of aluminum. / 0 .
- an oxygen absorber composed of aluminum and calcium oxide (Comparative Example 1: curve (b)) or an oxygen absorbent composed of aluminum and sodium chloride (Comparative Example 2: curve (c))
- it hardly absorbs oxygen, and the oxygen absorption performance is of a level that is clearly different from that of the present invention.
- Comparative Example 1 and Comparative Example 2 were less than 5% with respect to the theoretical maximum oxygen absorption amount of aluminum, and aluminum was not effectively used for oxygen absorption.
- the iron-based oxygen absorbent (Comparative Example 3: curve (d)) was inferior in both oxygen absorption and oxygen absorption rate to the oxygen absorbent of the present invention.
- the present invention has an oxygen absorption amount and an oxygen absorption rate much higher than those of conventional oxygen-absorbing agents as well as conventional techniques using aluminum, and is extremely superior. I understand.
- Aluminum (A) is an oxygen-absorbing substance, and is oxidized when aluminum comes into contact with oxygen molecules, and consequently plays a role of absorbing oxygen gas. Aluminium) may be one that does not have an oxide film formed on its surface, but it may be used as it is when a thin oxide film naturally formed on the surface by exposure to oxygen in the air during production. In addition, impurities such as other metals contained in aluminum (A) tend to hinder oxygen absorption, so aluminum purity is better. The amount is desirably 95% by mass or more, more desirably 99% by mass or more.
- the form of aluminum (A) be, for example, a foil shape, a fiber shape, a particle shape, a fine particle shape, or a powder shape. In addition, even a lump of particles or powder Good. Taking the ease of production into consideration, it is desirable to form fine particles.
- the upper limit of the average particle size of the aluminum particles is preferably 1000 / im or less, more preferably 300 / im or less. Particularly preferred is 100 / im or less.
- the lower limit of the average particle size of aluminum particles is preferably 0.1 lzm or more. Particularly preferably, it is 3 ⁇ m or more.
- Such aluminum (A) can be obtained by various methods such as a normal atomizing method and a crushing method.
- aluminum (a) may be pretreated with alkali, surface treatment agent, or the like, but it is not necessary.
- Aluminum (A) is almost completely absorbed by not only the surface but also the inside of metal aluminum due to oxygen absorption in the coexistence of the aluminum compound (B) (and moisture (E)) described later. It can be oxidized to. Therefore, even if the original aluminum (A) was a spherical particle with a certain average particle diameter, after sufficient oxygen absorption, almost the whole was formed into an aggregate of aluminum oxide powders similar to iron red coral. Change. It is difficult for this aggregate to collapse easily or to retain its original shape. Therefore, it is possible to cause oxidation to a point close to the theoretical value (upper limit) of oxygen absorption calculated from the aluminum equivalent, and the oxygen absorption performance (oxygen absorption rate, oxygen absorption amount) is greatly improved.
- the aluminum compound (B) is an oxidation accelerator for the aluminum (A), and has the action of oxidizing the aluminum (A) not only to the surface but also to the inside in the presence of water.
- the aluminum compound (B) is preferably one having a mass ratio of 1: 9 to 8: 2 between the aluminum element and the other elements bonded to the aluminum element.
- the oxygen absorbent performance of the oxygen absorbent of the present invention is enhanced. More preferably, it is 2: 8-7: 3. More preferably, it is 3: 7 to 6: 4, most preferably 3: 7 to 5.5: 4.5 is there.
- the oxidation number of the aluminum element in the aluminum compound (B) may be 1, 2, or 3, but an oxidation number of 3 is preferable.
- Suitable aluminum compounds (B) include aluminum oxides, hydroxides, aluminates, aluminosilicates, sulfates, nitrates, phosphates, halides, acetates, and the like. Of these, oxides or hydroxides are preferred.
- Examples of aluminum oxides or hydroxides include anhydrous aluminum compounds such as Hiichi Alumina, ⁇ -Alumina, ⁇ -Anolemina, ⁇ -Alumina, / c-Alumina, ⁇ -Alumina, and the like.
- Trihydrates of aluminum compounds such as To, etc., and A10 ( ⁇ H) or AlO
- Monohydrate, monohydrate of aluminum compounds such as diaspore, and even todite (5A1
- monohydrate is preferred among hydrates in which ⁇ -alumina is preferred among anhydrous oxides.
- the aluminum oxide is more preferably a hydrate, most preferably bemite.
- the aluminum compound ( ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ) may contain one or more metal elements having a high ionization tendency as elements other than aluminum in order to increase the oxygen absorption rate.
- the metal element having a high ionization tendency include potassium, calcium, sodium, magnesium, zinc, chromium, manganese, iron (II) and the like.
- the form of the aluminum compound ( ⁇ ) is preferably a form having a large surface area and high dispersibility so that a contact point with the surface of the aluminum ( ⁇ ) is easily generated.
- a fibrous shape, a particulate shape, a fine particle shape, a powder shape, and the like can be cited.
- examples of the particle shape include a spherical shape, a needle shape, a scale shape, and an indefinite shape.
- the average particle diameter in the case of the particle shape is preferably 0.01 zm to 1000 zm, more preferably 0.05 111 to 500 111. Particularly preferably, the thickness is 0.1 ⁇ m to 200 ⁇ m.
- Aluminum compound (B), aluminum in order to ensure the contact between (A), aluminum Niumu compound (B) is preferably at a specific surface area of force lm 2 Zg or more per lg instrument 10 m 2 / More preferably, it is g or more. Particularly preferred is 50 m 2 / g or more.
- the average particle diameter and specific surface area of the aluminum compound (B) mean the average particle diameter and specific surface area of the massive particles in which the crystals of the aluminum compound (B) are chemically or physically bonded.
- the crystal grain size is generally several nanometers to several tens of nanometers, and the average particle diameter measured is several lOnm to several millimeters because of its tendency to agglomerate.
- the BET specific surface area of the aggregated particles tends to increase as the crystal size decreases.
- the aluminum compound (B) preferably has a pH of 3 to 11 when the lg is dispersed in lOOcc of water.
- the hydrogen generation reaction that is a side reaction of the oxidation reaction of aluminum is suppressed to some extent. More preferably, it is 4-9.
- the aluminum compound (B) can be produced, for example, through a dry or wet chemical reaction, and if necessary, subjected to a drying treatment, a firing treatment, a purification treatment, a pulverization treatment and the like.
- the mass ratio of aluminum (A) to aluminum compound (B) is preferably 3: 7 to 7: 3.
- the ratio of ano-reminium (A) is large, the amount of oxygen that can be absorbed increases, while the oxygen absorption rate decreases, and in particular, the oxygen absorption rate at the initial stage of absorption decreases.
- the reverse is true when the proportion of the aluminum compound (B) is large.
- the mixing ratio may be appropriately determined according to the specifications required for the oxygen absorbent, taking into account the surface area of aluminum).
- the oxygen absorbent of the present invention may contain an electrolyte (C).
- the electrolyte (C) plays a role of further promoting the oxygen absorption rate of the oxygen absorbent.
- Examples include alkali metal, alkaline earth metal oxides, hydroxides, halides, carbonates, sulfates, phosphates, silicates, and organic acid salts.
- the electrolyte (C) may be mixed with the oxygen absorbent as it is solid, or the electrolyte (C) dissolved and dispersed in water may be used as the oxygen absorbent. You can mix them.
- a hydrogen generation reaction may occur as a side reaction in the oxidation reaction of aluminum.
- the oxygen absorbent according to the present invention has a pH indicated when the oxygen absorbent lg is dispersed in lOOcc water. It may be adjusted to a neutral range by adding a buffer or the like, or added with a hydrogen generation inhibitor (D).
- the hydrogen generation inhibitor (D) silver oxide, platinum, titanium, zeolite, activated carbon, sulfide, phosphoric acid and its salt, oxalic acid and its salt, tartaric acid and its salt, carbonic acid and its salt, sulfur Acids and salts thereof, benzoic acids and salts thereof, saturated linear primary amines (CH (CH) nCH
- Examples include elements, imidazolines, aliphatic aldehydes, aromatic aldehyde phenols, tannins, and the like.
- the form of the hydrogen generation inhibitor (D) is not particularly limited, but may be a form that can be easily dispersed in the oxygen absorbent.
- it may be in the form of particles such as powder, a carrier on which particles are supported, a fiber, or a porous body, or in the form of a solution as long as it can be dissolved in water, which is a solvent that can contribute to the oxygen absorption reaction. good.
- the hydrogen generation inhibitor (D) is preferably contained in the oxygen absorbent in the range of 0.000000001 mass% to 10 mass%. Within this range, the desired hydrogen generation suppression effect can be obtained, and the oxygen absorption efficiency can be improved. More preferably, it is from 0.00011 mass% to 5 mass%, and further preferably from 0.000000001 mass% to 1 mass%.
- the oxygen absorbent of the present invention may contain an anti-sparking agent for a microwave oven or an additive for improving performance in addition to the above-mentioned additives.
- the oxygen absorbent of the present invention may be pre-added with a stoichiometrically necessary amount of moisture (E) for the oxygen absorption reaction of aluminum (A) in accordance with the application. . It is preferable that water (E) is contained in the oxygen absorbent in an amount of 5% to 85% by weight. 10% to 70% The mass% is more preferable. By adjusting the amount of moisture (E) added within this range, the hydrogen generation reaction can be suppressed while maintaining high oxygen absorption performance. As a method of addition, water) may be added directly, or it may be added on a water retention agent or carrier. Also, an aqueous solution or an aqueous dispersion in which an additive such as the hydrogen generation inhibitor (D) is dissolved or dispersed can be used.
- any component for example, an aluminum compound (B) is added to water ( After dispersing in E), a method such as adding aluminum (A) while stirring the dispersion may be used.
- a water retention agent is a gel thickener that is hydrophilic, has a higher weight than its own weight, and can form a zonore or gel while retaining moisture.
- a synthetic polymer such as polyacrylate or carrageenan is used.
- polysaccharides such as
- Examples of the carrier include fiber products having water retention properties such as absorbent cotton, woven fabric and non-woven fabric, activated carbon zeolite, diatomaceous earth, activated clay, silica, talc, gypsum, calcium silicate, calcium chloride, graphite and carbon.
- Examples thereof include inorganic powders such as black and carbon nanotubes or inorganic particulates.
- One type of water retention agent or carrier can be used, and two or more types can be used in combination.
- moisture (E) is not necessarily added to the oxygen absorbent according to the present invention, and moisture separated from an article to be packaged such as a food packaged together with the oxygen absorbent or when the packaging bag is packed.
- Oxygen absorption reaction may be performed by using water vapor remaining in the air or water vapor that passes through the packaging bag and enters the bag after packaging.
- the oxygen absorbent of the present invention can be obtained by mixing the above-mentioned components at a predetermined ratio, and stirring and homogenizing.
- stirring may be performed while simultaneously pulverizing aluminum (A), aluminum compound (B), and the like.
- the mixing and homogenization treatment should be performed in an oxygen-free atmosphere using an inert gas such as nitrogen gas or argon gas, or carbon dioxide gas.
- an inert gas such as nitrogen gas or argon gas, or carbon dioxide gas.
- the oxygen absorbent of the present invention may be enclosed in a bag made of a breathable material and used as a bag-like oxygen absorbent.
- a bag made of a breathable material and used as a bag-like oxygen absorbent.
- polyethylene, polypropylene, ethylene Films made of thermoplastic resin such as butyl acetate copolymer, polystyrene, polyester, paper, woven fabric, non-woven fabric, microporous membrane, etc., or their multi-layer strength can be produced.
- the bag may be pierced or scratched.
- the breathability of the breathable bag is preferably such that the Gurley air permeability in accordance with JIS-P-8117 is 100 000 seconds / 100 ml air or less.
- Examples of the shape of the bag made of a breathable material include a quadrangle, a triangle, a sphere, an ellipse, a rectangular parallelepiped, and a cone. If the size of the breathable bag is too small, the risk of accidental eating increases. However, if the size of the air-permeable bag is too large, there is a problem that the appearance of the packaged body is impaired. Therefore, it may be selected as appropriate in consideration of the oxygen absorption performance, the bulkiness of the oxygen absorbent, the size of the packaged body, and the like. Also, the oxygen absorbent of the present invention may be sandwiched between at least two substrates and used as an oxygen absorbent sheet.
- the base material is made of, for example, a film made of a thermoplastic resin such as polyethylene, polypropylene, ethylene-butyl acetate copolymer, polystyrene or polyester, paper, woven fabric, non-woven fabric, microporous membrane, or a multilayered body thereof, and oxygen.
- Oxygen gas permeation rate is 5,000ml / m 2 / day / MPa or more and water vapor transmission rate is 500g / m 2 'according to JIS-Z-0208-1976 (temperature / humidity condition B) from the point of smooth absorption reaction It is preferable that it is 24 hours or more.
- the binder (F) may be added to the mixture (X) to be used as the coating type oxygen absorbent (Y).
- the binder (F) plays a role of improving ease of application, printing, etc. by making the oxygen absorbent into a solution or a paste.
- binder (F) examples include the following thermoplastic resins, thermosetting resins, and water-soluble polymers.
- thermoplastic resin examples include polyethylene resin, polypropylene resin, polystyrene resin, methacrylic resin, polychlorinated bur resin, polyamide resin, polycarbonate resin, polyethylene terephthalate resin, polybutylene terephthalate resin, and cellulose acetate resin.
- thermosetting resins include urea resins, melamine resins, xylene resins, phenol resins, polyurethane resins, and unsaturated polyester resins. These single resins or copolymer resins may be used alone or A combination of these Can be mentioned.
- Water-soluble polymers include hydrophilic natural polymers or derivatives thereof (starch, corn starch, sodium alginate, gum arabic, guar gum, locust bean gum, quince seed, carrageenan, galactan, pectin, mannan, Gelatin, casein, albumin, collagen, dextrin, xanthan gum, etc.), cellulose derivatives (methyl methanolose, ethinoresenorelose, hydroxyethinoresenorelose, force noreoxymethinoresenolate, senorelose sulphate, Hydroxypropinoresenorelose, etc.), vinylenoreanolic polymers (polybulal alcohol, ethylene-butyl alcohol copolymer, etc.), ethylene polymers (ethylene monomaleic anhydride copolymer, etc.), vinyl acetate Copolymerization (Butyl acetate-methyl acrylate copolymer, etc.), polyalkylene oxide (polyethylene oxide,
- the water-soluble polymer is preferable because it helps to disperse the mixture (X) and also holds and supplies moisture necessary for the oxidation action of the aluminum (A) and the aluminum compound (B).
- the mixing ratio of the mixture (X) to the binder (F) is 15 to 99% by mass for the mixture (X) and! It is preferable that it is 85 mass%.
- the ratio of the mixture (X) is large, since the mass of the mixture (X) is large, an effective oxygen absorption capacity can be obtained with a small amount of the coating-type oxygen absorbent (Y). Force, while the mixture When the ratio of (X) is too large, the amount of binder (F) becomes too small, and the mixture (X) is held by the binder (F). The opposite is true if the ratio of the knuckers (F) is large.
- the binder (F) is a water-soluble polymer
- the ratio of the mixture (X) becomes too large, the amount of water supported and supplied decreases.
- the ratio of the binder (F) becomes too large, the amount of water carried and supplied becomes too large to effectively suppress the hydrogen generation reaction.
- the pH of the water-soluble polymer refers to the pH when 2 g of the water-soluble polymer is dispersed in 100 g of water.
- the P H of the water-soluble polymer aqueous solution is large in water, to facilitate the supply of oxygen required for the oxidation of the aluminum contact).
- an electrolyte to the binder (F) for the purpose of adjusting the pH of the aqueous polymer solution.
- the electrolyte added at this time include alkali metal oxides, alkaline earth metal oxides, hydroxides, halides, carbonates, nitrates, phosphates, silicates, and organic acid salts. . These may be used alone or in combination of two or more.
- a suitable viscosity of the water-soluble polymer is ImPa's to: 10, OOOmPa's when 2 g of the water-soluble polymer is dispersed in 100 g of water at 23 ° C.
- the binder (F) is a thermoplastic resin
- a resin having a permeation rate of 5,000 ml / m 2 / day / MPa or more and a moisture permeability of 500 gZm 2 '24 hr or more according to JIS-Z-0208-1976 (temperature and humidity condition B) is preferable.
- the coating type oxygen absorbent (Y) of the present invention may be used by dispersing in water or an organic solvent for the purpose of improving coating properties.
- organic solvent include ethers, aromatic hydrocarbons, ketones, alcohols, esters, amides, animal and vegetable oils, and the like.
- the viscosity of the coating type oxygen absorbing material (Y) used for coating is preferably adjusted in the range of 1 to 1,000 mPa ⁇ s, and in the range of 10 to 800 mPa ⁇ s from the viewpoints of coatability and dispersibility. It is preferable to be adjusted to. A particularly preferable viscosity adjustment range is 50 to 500 mPa's.
- the coating-type oxygen absorbent (Y) can also be used as an oxygen-absorbing material by coating or impregnating the base material surface.
- the base material is preferably a food-contactable material from the viewpoint of safety.
- heat such as polyethylene, polypropylene, ethylene monoacetate copolymer, polystyrene, polyester, etc.
- films made of a plastic resin, paper, woven fabric, non-woven fabric, microporous membrane, and a multilayer body thereof.
- the shape of the substrate is preferably a film or a sheet from the viewpoint of coating, and a larger coating area is preferable from the viewpoint of oxygen absorption performance. Therefore, after applying the coating oxygen absorber (Y) to a sheet or film-like substrate, the sheet or film is made uneven by using a method such as pressure forming or vacuum forming, or the coating oxygen absorber (Y It is also possible to stack a large number of substrates coated with) to make a thick sheet. Further, the obtained sheet or film can be processed into a container, a lid material, a cap seal or the like.
- the substrate coated or impregnated with the coating type oxygen absorbent (Y) may be used alone or in an intermediate layer of a multilayer sheet.
- a substrate coated with a coated oxygen absorbent (Y) (single layer or multilayer material)
- a substrate / substrate impregnated with a coated oxygen absorbent (Y) (single layer material or multilayer material)
- Base material (single layer or multilayer material) / coating type oxygen absorbent
- Substrate coated with Y) (single layer material or multilayer material) (coating layer is located in the middle), substrate (single layer material or multilayer material) / substrate impregnated with coating type oxygen absorbent (Y) / Structure of substrate (single layer material or multilayer material) etc.
- a layer containing an oxygen gas barrier resin (oxygen barrier layer) contains a coating type oxygen absorbent (Y). It is preferable to use the outer layer rather than the layer.
- the resin used for the oxygen-nora layer is a high-density polyethylene resin (HDPE), a polypropylene resin (PP), an ethylene-butyl alcohol copolymer resin (EVOH, etc.), a polyamide resin.
- HDPE high-density polyethylene resin
- PP polypropylene resin
- EVOH ethylene-butyl alcohol copolymer resin
- a polyamide resin e.g.
- Polyethylene terephthalate (modified) resin PET, etc.
- PET Polybutylene terephthalate (modified) resin
- PBT Polybutylene terephthalate (modified) resin
- PEST aliphatic polyester resins
- the coating-type oxygen absorbent (Y) may be treated in a drying step after impregnating the substrate surface or the substrate.
- Conditions for the drying process may be appropriately selected depending on the type and amount of binder (F), the amount of water'solvent, etc., and the drying temperature, air volume, wind speed, etc. may be selected as appropriate. It is preferable to dry in an inert gas such as carbon dioxide gas.
- the method of applying the coating type oxygen absorbent (Y) to the base material is performed manually using a hand roller, a spray gun, a flow gun, a spatula, a trowel, a comb iron, a caulking gun or the like. It can also be applied using a coater such as a flow coater, knife coater, gravure roll, hot melt applicator, etc., depending on the application area, viscosity, etc. of the coating type oxygen absorbent (Y). You can choose.
- the coating amount of the coating type oxygen absorbent (Y) to the base material is expressed by the coating thickness and the coating area, and can be appropriately selected depending on the application, coating method, and desired oxygen absorption performance. For example, when the coating thickness is reduced from the viewpoint of suppressing cracking and peeling because the substrate is a thin film
- the amount of oxygen absorbed can be adjusted by adjusting the coating area.
- the coating-type oxygen absorbent (Y) is used as an ink
- additives additives, antifriction agents, drying regulators, stabilizers for expressing functions such as color and gloss
- Additives such as additives may be added as long as the effects of the present invention are not impaired.
- the mixture (X) may be kneaded with a thermoplastic resin and used as the resin-type oxygen absorbent (Z).
- the resin-type oxygen absorbent (Z) can also be formed into a film or sheet by a melt film-forming method such as a calendar method or a T-die method.
- the resin-type oxygen absorbent (Z) has a mixture (X) of 5 to 80% by mass and a thermoplastic resin of 20 to 20% when the sum of the mixture (X) and the thermoplastic resin is 100% by mass. It is preferably composed of 95% by mass.
- the thickness of the film or sheet formed by the resin-type oxygen absorbent (Z) is not particularly limited, but is preferably in the range of 0.01 mm to 5 mm.
- the film or sheet obtained from the resin-type oxygen absorbent (Z) of the present invention may be used as a single layer, or a layer or oxygen barrier made of the same or other thermoplastic resin. It can also be used by being laminated with a layer composed of layers.
- the above-described oxygen barrier layer is used more than the layer containing the resin-type oxygen absorbent (Z).
- it is preferably used for the outer layer.
- the inner layer has an oxygen transmission rate of 000 ml / m 2 Zday / MPa or more for the purpose of smoothly carrying out the oxygen absorption reaction of the oxygen absorbent.
- the moisture permeability according to JISZ0208-1976 is preferably 500 g / m 2 ′ 24 hr or more.
- the method of laminating can be performed using a method such as wet lamination, dry lamination, extrusion lamination, and the like.
- the layer to be laminated is only on one side of the layer containing the resin-type oxygen absorbent (Z). Again, both sides are good.
- the obtained sheet or film composed of the resin-type oxygen absorbent (Z) is made uneven by using a method such as pressure forming or vacuum forming, or processed into a container or a lid. Is also possible.
- Sheets and films comprising the substrate coated with the coating-type oxygen absorbent (Y) and the resin-type oxygen absorbent (Z) are (i) boxes, cups, trays, tubes, bottles, bags, etc. (Iii) a lid that covers at least a part of the upper part of the container; (iii) a container such as a can or bottle filled with a product such as a pharmaceutical, beverage, dairy product or processed food; Or, for the purpose of labeling or decoration, the cap seal is used to seal the head where the mouth is formed, and (iv) it is further processed into a label type oxygen absorber by applying an adhesive.
- the layer containing aluminum (A) and the layer containing aluminum compound (B) may be processed separately and then contacted to be used as an oxygen absorber.
- a base material layer made of paper, resin, a combination thereof or the like is laminated on at least one surface of the oxygen absorbing material. It may be used as a sheet or a film, or these may be processed using the method described above and used as a container.
- the oxygen absorbent of the present invention has high oxygen absorption performance as described above, it is suitably used for packaging contents in which an oxidizing atmosphere is not preferred.
- an oxidizing atmosphere for example, chemicals, photographic drugs, IC manufacturing chemicals such as chemicals that are easily oxidizable or hate oxidation, beverages, alcoholic beverages, foods that require fragrances such as food, or contact with oxygen-containing atmospheres
- chemicals, photographic drugs, IC manufacturing chemicals such as chemicals that are easily oxidizable or hate oxidation
- beverages, alcoholic beverages foods that require fragrances such as food, or contact with oxygen-containing atmospheres
- Examples include small precision machinery parts, metal materials, and aerobic fungi that require prevention of reproduction.
- rice paste As food, rice paste, prepared dishes, rice cakes such as bamboo shoots, bamboo rings, etc., confectionery such as crepes, cakes and waffles, Japanese confectionery such as kintsuba and buns, dairy products such as cheese and yogurt, and livestock meat such as sausages Processed products, delicacies such as sushi, udon, buckwheat, ramen, pasta and other semi-ginger and ginger.
- Sample particles dispersed in water using sodium hexametaphosphate as a dispersant were measured for particle size distribution using a laser diffraction particle size distribution analyzer SALD — 2200 (trade name) manufactured by Shimadzu Corporation.
- SALD — 2200 laser diffraction particle size distribution analyzer
- the container body is made of glass
- the lid is made of PMMA
- the lid packing is made of silicone.
- X month same diameter X height (mm) ⁇ 98 ⁇ ⁇ 113 X 158, capacity l, 300cc storage airtight container with air and a predetermined amount of oxygen absorbent sump nore are sealed and left in a 23 ° C atmosphere
- the oxygen gas concentration in the container after the lapse of an arbitrary time was measured by an oxygen and carbon dioxide concentration meter checkpoint (trade name) manufactured by PBI Dansensor. Oxygen absorption after an arbitrary time (V)
- V ⁇ (C -C) ⁇ 100 ⁇ X V ⁇ x
- the initial oxygen absorption rate (S 1) is the amount of oxygen absorbed from 3 hours after the start of measurement.
- (V) is converted to an average value per hour.
- the absorption rate (S) was Occ / (g'hr).
- An oxygen absorbent was prepared by mixing 5 g of the activated charcoal produced and evaluated in the same manner as in Example 1.
- the maximum oxygen absorption (V) is 26ccZg, and the initial oxygen absorption rate (S) is Occ / (g'hr).
- Example 1 From the evaluation results of Example 1 and Comparative Examples:! To 3, it can be seen that the present invention is remarkably superior to the prior art.
- the oxygen absorbent in Example 1 was 515 cc / g, which was about 83% of the theoretical maximum oxygen absorption of aluminum, compared to 620 cc / g, which is the theoretical maximum oxygen absorption of aluminum.
- the maximum oxygen absorption amounts of Comparative Examples 1 and 2 were 0.16% and 4% of the theoretical maximum oxygen absorption amount, respectively.
- Example 1 has a much superior oxygen absorption performance than the iron-based oxygen absorbent.
- the initial oxygen absorption rate (S 1) was 14.5 ccZ (g′hr).
- the oxygen absorption rate (S 1) was 0 cc / (g ′ hr).
- the oxygen absorber was prepared by mixing lg with pure water. As a result of evaluation in the same manner as in Example 1, almost no oxygen was absorbed. Therefore, the maximum oxygen absorption amount (V) was OccZg, and the initial oxygen absorption rate (S) was 0.
- Example 2 From the evaluation results of Example 2 and Comparative Examples 4 and 5 above, when the aluminum (A) and the aluminum compound (B) coexist like the oxygen absorbent of Example 2, the oxygen absorbent Showed excellent oxygen absorption performance. By the way, like the oxygen absorbents in Comparative Examples 4 and 5, when aluminum (A) or aluminum compound (B) was used alone, oxygen absorption reaction hardly occurred. It is surprising that when aluminum (A) and aluminum compound (B) coexist, the oxygen absorption performance is remarkably excellent.
- Example 2 The oxygen absorbent described in Example 2 was kept in a 70 ° C. nitrogen atmosphere for 10 minutes. Thereafter, this oxygen absorbent was taken out into the atmosphere and evaluated in the same manner as in Example 1. As a result, the maximum oxygen absorption (V) was 361 cc / g (after 24 hours), and the initial oxygen absorption rate (V)
- Example 3 As described above, in Example 3, it can be seen that the oxygen absorption rate immediately after the start of the reaction is more excellent by maintaining the state exposed to a high temperature environment.
- Example 4 As described above in Example 4, even when a zeolite which is a tectoaluminosilicate is used as the aluminum compound (B), the oxygen absorption amount and the oxygen absorption rate are far superior to those of the prior art. It was found to have performance.
- the average particle size is 8 ⁇ m.
- An oxygen absorbent was prepared by gently mixing 1.0g of ⁇ ⁇ _001 powder (trade name) and 1.5g of pure water with a spoon. As a result of the same evaluation as in Example 1, the maximum oxygen absorption (V
- Alkaline '8F02A (trade name) made by Eda'Dara Niyura Japan Co., Ltd. with an average particle size of 8 / im, pH 4.3, average particle size 54 ⁇ , specific surface area 105m 2 / g and crystal size 0.0 4 / im Sasol's bermite powder 'DISPERAL40 (trade name) 1 ⁇ 0g, pure water 1 ⁇
- the degree (S) was 2.4 cc / (g'hr).
- the same operation as in Example 6 was repeated except that the specific surface area was changed to 0, specific surface area 110 m 2 / g).
- the maximum oxygen absorption (V) is 355ccZg (after 23 hours), and the initial oxygen absorption rate (S) is 4
- Example 6 the boehmite powder was replaced with ⁇ -alumina powder TM-300 (trade name) manufactured by Daimei Chemical Industries with a pH of 7.2, a specific surface area of 190 m 2 Zg, and an average particle size of 0.007 xm.
- Alumina Powder TM— DAR (trade name), ⁇ Alumina Powder TM— 100J (trade), manufactured by Daimei Chemical Co., Ltd., with a pH of 7.2, a specific surface area of 110 m 2 / g, and an average particle size of 0.014 / m
- Maximum oxygen absorption (V) and initial oxygen absorption rate (S) are 327cc / g and 42 CC Z (g-
- Example 6 the chemical formula of the main component of boehmite powder is represented by Al Si O (OH).
- Example 6 the chemical formula of the main component of boehmite powder is represented by Al Si O (OH).
- the initial oxygen absorption rate (S) was Occ / (g-hr).
- Example 5 to Example 10 aluminum (A) and an aluminum compound were used without performing treatment such as exposing the metal surface of aluminum (A) by acid / alkali treatment or grinding treatment. It has been found that the oxygen absorbent of the present invention exhibits excellent oxygen absorption performance only by lightly mixing (B) with a spoon.
- Example 5 the aluminum was replaced with aluminum manufactured by Eka 'Darani Yura Japan, Inc. having an average particle size of 3 ⁇ m, and aluminum manufactured by Eka' Granulla Japan, Inc. having an average particle size of 50 ⁇ m Replaced by 75 ⁇ Classified (trade name), Eka with an average particle size of 100 zm. Aluminum made by Graniura Ichi Japan Co., Ltd. Replaced by 400 xm (400/60 ⁇ m) The same operation as in Example 5 was repeated. Maximum oxygen absorption (V) and
- the aluminum powder produced by the atomization method exhibits excellent oxygen absorption performance particularly when the average particle diameter of aluminum (A) is 100 ⁇ m or less. I understood it.
- the oxygen absorbent described in Example 2 is made of polyester Z non-woven fabric Z polyethylene with pores made in Gurley type air permeability according to JIS-P-8117 of 8,000 seconds. It was sealed in a 5cm x 5cm bag formed by sealing, and the temperature change on the surface of the bag was measured with a thermometer ondori TR-71S (trade name) manufactured by T & D. As a result, the temperature of the bag surface increased by about 10 ° C. As described above, from Example 12, it was found that the oxygen absorbent of the present invention can also be used as a heating element.
- the present invention can be used as an oxygen-absorbing material and a heat-generating material, and can be suitably used particularly in the field of oxygen-absorbing agents that absorb oxygen gas inside the package.
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Polymers & Plastics (AREA)
- Food Science & Technology (AREA)
- Wood Science & Technology (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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112006000198T DE112006000198T5 (de) | 2005-03-07 | 2006-03-03 | Sauerstoffabsorbiermittel |
| JP2007507077A JP4357563B2 (ja) | 2005-03-07 | 2006-03-03 | 酸素吸収剤 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005062600 | 2005-03-07 | ||
| JP2005-062600 | 2005-03-07 | ||
| JP2005-218588 | 2005-07-28 | ||
| JP2005218588 | 2005-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006095641A1 true WO2006095641A1 (ja) | 2006-09-14 |
Family
ID=36953241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/304045 Ceased WO2006095641A1 (ja) | 2005-03-07 | 2006-03-03 | 酸素吸収剤 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080096047A1 (ja) |
| JP (1) | JP4357563B2 (ja) |
| DE (1) | DE112006000198T5 (ja) |
| TW (1) | TW200640569A (ja) |
| WO (1) | WO2006095641A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017104805A (ja) * | 2015-12-09 | 2017-06-15 | 大日本印刷株式会社 | 酸素吸収材料および包装材料 |
| JP2017221943A (ja) * | 2017-08-31 | 2017-12-21 | 大日本印刷株式会社 | 酸素吸収材料および包装材料 |
| JP2020075207A (ja) * | 2018-11-06 | 2020-05-21 | 凸版印刷株式会社 | 脱酸素剤の製造方法、脱酸素剤、脱酸素剤包装体、及び食品包装体 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9662869B2 (en) * | 2007-02-08 | 2017-05-30 | Meissner Filtration Products, Inc. | Multilayer film, method of making the same and containers formed from the same |
| US20110139670A1 (en) * | 2009-12-14 | 2011-06-16 | Dean Intellectual Property Services, Inc. | Food packaging closure with an oxygen scrubbing function |
| CO6380009A1 (es) * | 2010-08-13 | 2012-02-15 | Perilla Jorge Alberto Medina | Compuesto absorbedor de oxigeno encapsulado en una matriz de silica y metodo para producirlo |
| CN104245588B (zh) * | 2012-01-31 | 2016-03-02 | 萨索尔烯烃及表面活性剂有限公司 | 触变剂和使用方法 |
| US11407880B2 (en) * | 2014-12-24 | 2022-08-09 | Kuraray Co., Ltd. | Polymethallyl alcohol resin composition and molding containing same |
| JP6680694B2 (ja) | 2014-12-24 | 2020-04-15 | 株式会社クラレ | ポリメタアリルアルコール樹脂組成物及びそれを用いた成形体 |
| CN116785925B (zh) * | 2023-05-26 | 2024-07-05 | 东莞市欣荣天丽科技实业有限公司 | 一种低温脱氧剂及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03137935A (ja) * | 1989-10-25 | 1991-06-12 | Mitsubishi Gas Chem Co Inc | 脱酸素剤 |
| JPH09234363A (ja) * | 1996-02-29 | 1997-09-09 | Toppan Printing Co Ltd | 酸素吸収性樹脂組成物およびその製造方法 |
| JP2003205583A (ja) * | 2002-01-11 | 2003-07-22 | Mitsubishi Gas Chem Co Inc | 脱酸素性多層フィルム |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230595A (en) * | 1978-03-13 | 1980-10-28 | Teijin Limited | Oxygen scavenging and heat-generating compositions, and deoxygenating and heat-generating structures |
| TW232671B (ja) * | 1990-01-16 | 1994-10-21 | Idemitsu Petrochemical Co | |
| US5667863A (en) * | 1991-01-07 | 1997-09-16 | Multisorb Technologies, Inc. | Oxygen-absorbing label |
| DE69909902T2 (de) * | 1998-06-03 | 2004-05-06 | Mitsubishi Gas Chemical Co., Inc. | Sauerstoffabsorbierende Zusammensetzung, Sauerstoffabsorbierendes Harz und Konservierungsverfahren |
| US6582676B2 (en) * | 2000-08-14 | 2003-06-24 | The University Of British Columbia | Hydrogen generation from water split reaction |
| US6440385B1 (en) * | 2000-08-14 | 2002-08-27 | The University Of British Columbia | Hydrogen generation from water split reaction |
-
2006
- 2006-03-03 JP JP2007507077A patent/JP4357563B2/ja not_active Expired - Fee Related
- 2006-03-03 US US11/885,786 patent/US20080096047A1/en not_active Abandoned
- 2006-03-03 DE DE112006000198T patent/DE112006000198T5/de not_active Ceased
- 2006-03-03 WO PCT/JP2006/304045 patent/WO2006095641A1/ja not_active Ceased
- 2006-03-07 TW TW095107605A patent/TW200640569A/zh unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03137935A (ja) * | 1989-10-25 | 1991-06-12 | Mitsubishi Gas Chem Co Inc | 脱酸素剤 |
| JPH09234363A (ja) * | 1996-02-29 | 1997-09-09 | Toppan Printing Co Ltd | 酸素吸収性樹脂組成物およびその製造方法 |
| JP2003205583A (ja) * | 2002-01-11 | 2003-07-22 | Mitsubishi Gas Chem Co Inc | 脱酸素性多層フィルム |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017104805A (ja) * | 2015-12-09 | 2017-06-15 | 大日本印刷株式会社 | 酸素吸収材料および包装材料 |
| WO2017098777A1 (ja) * | 2015-12-09 | 2017-06-15 | 大日本印刷株式会社 | 酸素吸収材料および包装材料 |
| JP2017221943A (ja) * | 2017-08-31 | 2017-12-21 | 大日本印刷株式会社 | 酸素吸収材料および包装材料 |
| JP2020075207A (ja) * | 2018-11-06 | 2020-05-21 | 凸版印刷株式会社 | 脱酸素剤の製造方法、脱酸素剤、脱酸素剤包装体、及び食品包装体 |
| JP7286946B2 (ja) | 2018-11-06 | 2023-06-06 | 凸版印刷株式会社 | 脱酸素剤の製造方法、脱酸素剤、脱酸素剤包装体、及び食品包装体 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2006095641A1 (ja) | 2008-08-14 |
| DE112006000198T5 (de) | 2008-02-21 |
| US20080096047A1 (en) | 2008-04-24 |
| TW200640569A (en) | 2006-12-01 |
| JP4357563B2 (ja) | 2009-11-04 |
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