WO2007125741A1 - コーティング液、それを用いたガスバリア性フィルム、ガスバリア性積層体及びガスバリア性多層フィルム、並びにそれらの製造方法 - Google Patents
コーティング液、それを用いたガスバリア性フィルム、ガスバリア性積層体及びガスバリア性多層フィルム、並びにそれらの製造方法 Download PDFInfo
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- WO2007125741A1 WO2007125741A1 PCT/JP2007/057775 JP2007057775W WO2007125741A1 WO 2007125741 A1 WO2007125741 A1 WO 2007125741A1 JP 2007057775 W JP2007057775 W JP 2007057775W WO 2007125741 A1 WO2007125741 A1 WO 2007125741A1
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- WIPO (PCT)
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- coating liquid
- polycarboxylic acid
- gas
- gas barrier
- acid polymer
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/048—Forming gas barrier coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/052—Forming heat-sealable coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2400/00—Characterised by the use of unspecified polymers
- C08J2400/10—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C08J2400/104—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing oxygen atoms
- C08J2400/105—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing oxygen atoms containing carboxyl groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/008—Additives improving gas barrier properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
Definitions
- the present invention is susceptible to deterioration due to the influence of oxygen or the like, and is used for packaging materials for precision metal parts such as foods, beverages, medicines, pharmaceuticals, and electronic parts, as well as high-temperature hot water conditions such as boil and retort sterilization.
- WO03Z091317 pamphlet (Document 1) is a film made of a polycarboxylic acid polymer and a polyvalent metal compound, and the film A film having an infrared absorption spectrum peak ratio (A1560ZA1700) of 0.25 or more is disclosed, and in the specification, a polycarboxylic acid polymer layer and a polyvalent metal compound layer adjacent to each other are laminated.
- a technique for crosslinking a polycarboxylic acid polymer with a polyvalent metal after forming a body is described.
- polycarboxylic acids include sodium hydroxide, lithium hydroxide, potassium hydroxide hydroxide, Magnesium hydroxide, calcium hydroxide, hydroxide It is described that a material partially neutralized with an alkali such as norium, aluminum hydroxide, or ammonia is used.
- gasnolia films such as those described in the above-mentioned literature and the like and packages using these films have a problem in that the performance deteriorates depending on the manufacturing process and application. I helped. That is, in the process of manufacturing the film or package, the end face of the film package comes into contact with cold water, is contaminated by the adhesion of cold water, or is washed before being sterilized by heating. In addition, when exposed to cold water, such as by dipping treatment, whitening may occur, and gas noliativity and transparency may be impaired.
- the present invention has been made in view of the above-described problems of the prior art.
- the packaging material is used for heat sterilization packaging, the packaging material is exposed to cold water of 30 ° C or lower. Even so, the occurrence of whitening is sufficiently prevented, and a coating solution for obtaining a packaging material having excellent gas noliativity and transparency, gas noria film, gas noria laminate and gas nolia multilayer film using the same.
- an object is to provide a manufacturing method thereof.
- the present inventors have found that the first solvent and 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent. And 0.5 to 0.25 chemical equivalent of zinc compound relative to the amount of carboxyl group in the polycarboxylic acid polymer, and the number average molecular weight of the polycarboxylic acid polymer is For packaging materials that use a coating solution in the range of 40,000 to 10,000,000, when the packaging material is exposed to cold water of 30 ° C or lower (for example, the end face of a film or package is cold water).
- the coating liquid of the present invention comprises a first solvent, 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent, and a carboxyl in the polycarboxylic acid polymer. Containing 0.5 to 0.25 chemical equivalent of zinc compound with respect to the amount of the group, and the number average molecular weight of the polystrengthen sulfonic acid polymer is in the range of 40,000 to 10,000,000,000. It is a thing.
- the gas barrier film of the present invention comprises a first solvent, 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent, and the polycarboxylic acid polymer in the polycarboxylic acid polymer. Containing 0.5 to 0.25 chemical equivalents of zinc compound with respect to the carboxyl group, and the number average molecular weight of the polycarboxylic acid polymer is 40,000 to 10,000,000 A layer (a) in which a coating liquid (A) force that is within the range is formed, and a support, and a layer (a) formed from the coating liquid (A) on at least one side of the support. It is what you have.
- the gas noble laminate of the present invention includes a first solvent, 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent, and the polycarboxylic acid polymer. Containing 0.5 to 0.25 chemical equivalents of zinc compound, and the number average molecular weight of the polycarboxylic acid polymer is 40,000 to 10,000,000.
- the gas barrier multilayer film of the present invention comprises the gas barrier laminate and a plastic film laminated on at least one surface of the gas barrier laminate.
- a packaging material of the present invention comprises the gas no laminate.
- a package of the present invention includes the gas no laminate.
- the method for producing a gas barrier film of the present invention includes a first solvent, 0.1 to 30 parts by mass of a polycarboxylic acid-based polymer with respect to 100 parts by mass of the solvent, and the polycarboxylic acid-based polymer. Containing 0.05 to 25.25 chemical equivalents of zinc compound with respect to the carboxyl group in the coalescence, and the polycarboxylic acid polymer has a number average molecular weight of 40,000 to 100,000,000.
- the coating liquid (A) in the range is applied to at least one side of the support and then dried. This is a method for obtaining a gas barrier film having a layer (a) formed from the coating liquid (A).
- the method for producing a gas barrier laminate of the present invention comprises a first solvent, 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent, and the polycarboxylic acid system. Containing 0.5 to 0.5 to 25 chemical equivalents of a zinc compound with respect to the carboxyl group in the polymer, and the number average molecular weight of the polycarboxylic acid polymer is 40,000 to 100,000, 000
- the coating liquid (A) and the coating liquid (B) containing the polyvalent metal compound and the second solvent are applied to at least one surface of the support and then dried, and the coating liquid ( In this method, a layer (a) formed from A) and a layer (b) formed from the coating liquid (B) have at least one pair of stacking units adjacent to each other to obtain a gas-noir laminate.
- the method for producing a gas barrier multilayer film of the present invention comprises a first solvent, 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent, and the polycarboxylic acid type 0.5-0.25 chemical equivalent of zinc compound with respect to the carboxyl group in the polymer, and the number average molecular weight of the polycarboxylic acid polymer is in the range of 40,000 to 10,000,000,000.
- the coating liquid (A) and the coating liquid (B) containing the polyvalent metal compound and the second solvent are applied to at least one side of the support and dried to form a gas noble laminate.
- a plastic film is laminated on at least one surface of the gas no laminate to obtain a gas no multilayer multilayer film.
- the packaging material using the coating liquid of the present invention is excellent in that whitening is sufficiently prevented even when the packaging material is exposed to cold water of 30 ° C or lower.
- the reason why a packaging material having gas nooricity and transparency can be obtained is not necessarily clear, but the present inventors speculate as follows.
- the packaging material when the packaging material is exposed to water, the swelling of the polycarboxylic acid polymer and the crosslinking derived from the polyvalent metal compound proceed simultaneously.
- the progress of crosslinking derived from the polyvalent metal compound in the layer having a polycarboxylic acid-based polymer strength is slow. Swelling of the carboxylic acid polymer occurs preferentially.
- Polycarboxylic acid polymer In the case where crosslinking derived from a polyvalent metal compound is made in the polycarboxylic acid polymer layer after the swelling of the carboxylic acid polymer has preferentially progressed, the moisture content in the polycarboxylic acid polymer layer is reduced.
- the present inventors infer that the uniform layer cannot be maintained due to the influence, and as a result, whitening occurs, and the gas noriality and transparency are impaired.
- the crosslinking derived from the polyvalent metal compound in the polycarboxylic acid layer is sufficiently advanced before the packaging material is exposed to cold water.
- the present inventors speculate that the water resistance of the polymer layer is improved, so that the occurrence of whitening can be sufficiently prevented, and a packaging material having excellent gas nooricity and transparency can be obtained. To do.
- the packaging material when used for heat sterilization packaging, the occurrence of whitening is sufficiently prevented even when the packaging material is exposed to cold water of 30 ° C or lower,
- a coating liquid for obtaining a packaging material having excellent gas-no-reality and transparency, a gas-nore film using the same, a gas-no-rear laminate, a gas-no-rear multilayer film, and a method for producing them are provided. It becomes possible to do.
- the coating liquid (A) of the present invention comprises a solvent, 0.1 to 30 parts by mass of a polycarboxylic acid polymer with respect to 100 parts by mass of the solvent, and the amount of carboxyl groups in the polycarboxylic acid polymer. And 0.5 to 0.25 chemical equivalent of a zinc compound, and the number average molecular weight of the polycarboxylic acid polymer is in the range of 0.0000 to 10,000,000.
- the first solvent according to the present invention is a medium of a polycarboxylic acid polymer to be described later and a zinc complex compound to be described later.
- a first solvent include water, methyl alcohol, ethyl alcohol, isopropyl alcohol, n-propyl alcohol, n-butyl alcohol, n -pentyl alcohol, dimethyl sulfoxide, dimethylformamide, Dimethylacetamide, toluene, hexane, heptane, cyclohexane, acetone , Methyl ethyl ketone, jetyl ether, dioxane, tetrahydrofuran, ethyl acetate, and butyl acetate.
- water, methyl alcohol, ethyl alcohol, and isopropyl alcohol are preferable from the viewpoint of the environment, and water is preferable from the viewpoint of solubility of the polycarboxylic acid polymer and the zinc compound.
- These first solvents may be used alone or in combination of two or more.
- the polycarboxylic acid polymer useful in the present invention is a polymer obtained by polymerizing a polycarboxylic acid-based polymerizable monomer, and is a polymer having two or more carboxyl groups in the molecule.
- Examples of such polycarboxylic acid-based polymers include a, j8-monoethylenically unsaturated rubonic acid (co) polymers; ⁇ , ⁇ monoethylenically unsaturated carboxylic acids and other ethylenically unsaturated polymers. Copolymers with saturated monomers; acidic polysaccharides having a carboxyl group in the molecule such as alginic acid, carboxymethylcellulose, and pectin. These polycarboxylic acid polymers may be used alone or in combination of two or more.
- ⁇ -monoethylenically unsaturated carboxylic acid examples include alicyclic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, and crotonic acid.
- examples of the ethylenically unsaturated monomer copolymerizable with these ⁇ and ⁇ monoethylenically unsaturated carboxylic acids include saturated carboxylic acid butyl esters such as ethylene, propylene and butyl acetate, and alkyl acrylate.
- acrylic acid, methacrylic acid, itaconic acid, maleic acid from the viewpoint of gas barrier properties of the obtained gas barrier film, gas barrier laminate, and gas barrier multilayer film. It is preferable to use a (co) polymer of at least one polymerizable monomer selected from the group consisting of fumaric acid and crotonic acid, and mixtures thereof.
- Acrylic acid, methacrylic acid, maleic acid Group power of force Polyacrylic acid, polymethacrylic acid, polymaleic acid, and mixtures thereof more preferably using (co) polymers of at least one polymerizable monomer and mixtures thereof selected Especially preferred to use Yes.
- a film-like molded product of the polycarboxylic acid polymer alone as a raw material is used.
- an oxygen permeation coefficient of 1000 cm 3 (S TP) ⁇ / z mZn ⁇ 'day MPa or less at a temperature of 30 ° C and a relative humidity of 0% 500 cm 3 (STP) ⁇ / z mZn ⁇ 'It is more preferable to use one that is less than day MPa 100cm 3 (STP) ⁇ / z mZn ⁇ ' It is particularly preferred to use one that is less than day MPa 70cm 3 (STP) ⁇ ⁇ Most preferably, mZm 2 'day' MPa or less is used.
- the oxygen permeability coefficient at a temperature of 30 ° C and a relative humidity of 0% is the oxygen permeability measured at a temperature of 30 ° C and a relative humidity of 0% [unit: cm 3 (STP) / m Z ⁇ day-MPa].
- the value can be calculated by multiplying the value by the film thickness (unit: ⁇ m).
- the number average molecular weight (Mn) force of such a polycarboxylic acid polymer measured by the GPC method is in the range of 0.0000 to 10,000,000. Is necessary. If the number average molecular weight is less than 40,000, the resulting gas barrier film will not be able to achieve sufficient water resistance, and a packaging material in which the occurrence of whitening will be sufficiently prevented due to poor gas noirality and transparency. Can't get. On the other hand, if it exceeds 10,000,000, the coating solution is high in viscosity and the coating suitability is impaired.
- Polycarboxylic acid polymers with different number average molecular weights may be blended in a predetermined amount! ,.
- the content of such a polycarboxylic acid polymer is in the range of 0.1 to 30 parts by mass with respect to 100 parts by mass of the solvent. It is necessary to be. When the content is less than 0.1 part by mass, sufficient gas nooriety cannot be achieved in the obtained gas barrier film. On the other hand, if it exceeds 30 parts by mass, the coating solution becomes unstable and a uniform film cannot be obtained. Further, from the viewpoint of the stability of the coating liquid and the suitability for coating, the content power of such a polycarboxylic acid polymer is not limited. It is preferable to be in the range of 0.5 to 20 parts by mass with respect to 100 parts by mass of the medium.
- the zinc compound according to the present invention means zinc oxide, hydroxide, carbonate, organic acid salt or inorganic acid salt in addition to zinc metal.
- organic acid salts include formate, acetate, oxalate, citrate, and lactate.
- inorganic acid salts include chlorides, sulfates, nitrates, and phosphates.
- zinc compounds from the viewpoints of the obtained gas nore films, gas barrier laminates, gas nore properties of gas nore multilayer films, and coating solution stability (solubility of zinc compound). It is preferable to use zinc metal, zinc oxide, zinc hydroxide and zinc carbonate.
- the form of these zinc compounds may be particulate or non-particulate! /, But is preferably particulate from the viewpoint of solubility.
- the average particle size of such particles is not particularly limited, but from the viewpoint of solubility, it is preferably 50 m or less, more preferably 30 ⁇ m or less, and more preferably 10 ⁇ m or less. It is particularly preferred.
- the content power of such zinc compounds is 0.05 to 0.25 relative to the amount of carboxyl groups in the polycarboxylic acid polymer. It must be in the range of chemical equivalents. If the content is less than 0.05 chemical equivalent, sufficient water resistance cannot be achieved in the obtained gas-nore film, and the occurrence of whitening is sufficiently prevented due to poor gas-noreness and transparency. The packaging material cannot be obtained. On the other hand, if the 0.25 equivalent of chemical equivalent is exceeded, the coating solution becomes unstable and a uniform film cannot be obtained.
- the content of such zinc compounds is 0% relative to the amount of carboxyl groups in the polycarboxylic acid polymer. 07-0. It is preferably in the range of 25 to 25 equivalents, more preferably in the range of 0.1 to 0.25 equivalent of chemical equivalents.
- the resulting gas noorious film, gas barrier laminate, gas barrier is obtained.
- additives such as other polymers, softeners, stabilizers, antiblocking agents, adhesives, inorganic layered composites such as montmorillonite, etc.
- the content of the additive is in the range of 0.1 to L00 parts by mass with respect to 100 parts by mass of the polycarboxylic acid polymer.
- the gas-nore film of the present invention includes a layer (a) formed from the coating liquid (A) described above and a support described later, and the coating liquid (A) is provided on at least one side of the support. It has a layer (a) that is formed.
- the gas barrier laminate of the present invention comprises a layer (a) formed from the coating liquid (A) described above, a layer (b) formed from a coating liquid (B) described later, and a support described later.
- the layer (a) formed from the coating liquid (A) and the layer (b) formed from the coating liquid (B) are adjacent to each other on at least one surface of the support. It has a unit.
- the support according to the present invention is for sequentially laminating the layer (a) in which the aforementioned coating liquid (A) force is also formed and the layer (b) formed from the coating liquid (B) described later.
- the form of such a support is not particularly limited, and examples thereof include forms of a film such as a film, a sheet, a bottle, a cup, and a tray.
- Examples of the material of the support include metals, glasses, papers, and plastics (including metal-deposited plastics). Furthermore, among these materials, plastic materials such as low-density polyethylene, high-density polyethylene, linear low-density polyethylene, polypropylene, poly-4-methylpentene, and cyclic polyolefins such as cyclic polyolefins are used.
- such a support has improved adhesion to the layer (a) formed from the coating liquid (A) described above or a layer (b) formed from the coating liquid (B) described later.
- the surface of the support that has been subjected to surface activation treatment by corona treatment, flame treatment, plasma treatment, etc. may be used.
- the provided one may be used.
- the resin used for such an adhesive layer is not particularly limited as long as it is used for dry lamination, anchor coating, and primer.
- alkyd resin, melamine It is possible to use resin, acrylic resin, nitrified cotton, urethane resin, polyester resin, phenol resin, amino resin, fluorine resin, epoxy resin.
- the coating liquid (B) according to the present invention contains a polyvalent metal compound and a second solvent.
- a polyvalent metal compound means a single polyvalent metal atom having a metal ion valence of 2 or more, and a compound thereof.
- Examples of such polyvalent metals include alkaline earth metals such as beryllium, magnesium, and calcium; titanium, zirconium, chromium, manganese, iron, conoleto, nickel, copper, Transition metals such as zinc; aluminum.
- Examples of such a polyvalent metal compound include an oxide, hydroxide, carbonate, organic acid salt, or inorganic acid salt of the polyvalent metal; an ammonia of the polyvalent metal.
- polyvalent metal compounds it is preferable to use divalent metal compounds from the viewpoints of gas barrier properties, resistance to high-temperature steam and hot water, and manufacturability, and alkaline earth metals, cobalt It is more preferable to use nickel, copper or zinc oxides, hydroxides or carbonates; conoleto, nickel, copper or zinc ammonium complexes, or carbonates thereof.
- nickel, copper or zinc oxides, hydroxides or carbonates conoleto, nickel, copper or zinc ammonium complexes, or carbonates thereof.
- the form of such a polyvalent metal compound is preferably particulate.
- the average particle size of such polyvalent metal compound particles is preferably 1 ⁇ m or less, preferably from 5 ⁇ m or less, from the viewpoint of gas nooriety and coating suitability. More preferred is 0.1 m or less.
- Examples of the second solvent useful in the present invention include water, methyl alcohol, ethyl alcohol, isopropyl alcohol, n-propyl alcohol, n-butyl alcohol, n-pentyl alcohol, dimethyl sulfoxide, and dimethyl.
- Examples include formamide, dimethylacetamide, toluene, hexane, heptane, cyclohexane, acetone, methyl ethyl ketone, jetyl ether, dioxane, tetrahydrofuran, ethyl acetate, and butyl acetate.
- methyl alcohol, ethyl alcohol, isopropyl alcohol, toluene, and ethyl acetate are preferable from the viewpoint of coating properties
- methyl alcohol, ethyl alcohol, isopropyl alcohol, and water are preferable from the viewpoint of productivity.
- water can be used as the second solvent.
- these second solvents may be used alone or in combination of two or more.
- additives such as a resin, a dispersant, a surfactant, a softener, a stabilizer, a film-forming agent, an anti-blocking agent, and an adhesive are added.
- a resin e.g., ethylene glycol dimethacrylate
- a surfactant e.g., sodium glycol dimethacrylate
- a softener e.g., sodium glycol dimethacrylate
- a stabilizer e.g., sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite
- a coating liquid (B) for the purpose of improving coating suitability and film-forming property, it is preferable to use a mixture of soluble or dispersible resin in the solvent system used.
- the resin that is soluble or dispersible in the solvent system used in this way include, for example, alkyd resin, melamine resin, acrylic resin, nitrified cotton, urethane resin, polyester resin, phenol resin, amino acid resin.
- the resin used for coatings such as resin, fluorine resin, and epoxy resin.
- a dispersant that is soluble or dispersible in the solvent system used may be mixed and used. It is preferable.
- the dispersant soluble or dispersible in the solvent system used in this way include, for example, acrylamide, acrylic acid, acrylic acid ester, neutralized acrylic acid, allylitryl, adipic acid, adipic acid ester, adipine.
- Acid neutralized product azelaic acid, abietic acid, aminododecanoic acid, arachidic acid, arlyamine, arginine, arginic acid, albumin, ammonia, itaconic acid, itaconic acid ester, itaconic acid neutralized product, ethylene oxide, ethylene glycol , Ethylenediamine, oleic acid, kaolin, casein, strength prillic acid, strength prolatatam, xanthan gum, citrate, glycine, cristobalite, glycerin, glycerin ester, glucose, crotonic acid, kainic acid, saccharose, salicylic acid, cycloheptene, oxalic acid, Starch, stearic acid, sebacic acid, cellulose, ceresin, sorbitanate, sonolebitan stearate, sorbitan permelate, sonolebitan behenate, sorbitan laurate,
- It is preferably in the range of 1 to 50% by mass with respect to the total mass of (B), more preferably in the range of 3 to 45% by mass, and in the range of 5 to 40% by mass. Particularly preferred.
- the gas-nore film of the present invention comprises the layer (a) formed from the coating liquid (A) described above and the support described above, and the coating liquid (A) is provided on at least one surface of the support. It has a layer (a) to be formed.
- the thickness of the layer (a) in which the coating liquid (A) force is also formed is 0.01 to 10 m.
- a range of 0.05 to 5 ⁇ m is more preferable, and a range of 0.05 to 1 ⁇ m is particularly preferable.
- the temperature is 30.
- oxygen permeability at 0% relative humidity is preferably 1000 cm 3 (STP) / m 2 day ⁇ MPa or less 500 cm 3 (STP) Zm 2 'day' MPa or less is more preferred It is particularly preferably 100 cm 3 (STP) / 2 ⁇ day ⁇ MPa or less, and most preferably 70 cm 3 (STP) / 2 ⁇ day 'MPa or less.
- the layer (a) formed from the coating liquid (A) obtained by removing the support from such a gas barrier film has oxygen permeation at a temperature of 30 ° C. and a relative humidity of 0%.
- the degree is 1000 cm 3 (STP) Zm 2 'day MPa or less 500 cm 3 (STP) Zm 2 ' day MPa or less is more preferable 100 cm 3 (STP) Zm 2 'day' 70cm 3 (STP) Zm 2 ⁇ day ⁇ MPa or less is the most preferred!
- the gas noble laminate of the present invention comprises a layer (a) formed by the aforementioned coating liquid (A) force, a layer (b) formed from the aforementioned coating liquid (B), and the aforementioned support.
- the layer (a) formed from the coating liquid (A) and the layer (b) formed from the coating liquid (B) are adjacent to each other on at least one surface of the support. It has a unit.
- the thickness of the layer (a) on which the coating liquid (A) force is also formed is preferably in the range of 0.01 to 10 m, more preferably in the range of 0.05 to 5 ⁇ m. A range of 05 to 1 ⁇ m is particularly preferable.
- the thickness of the layer (b) formed from the coating liquid (B) is in the range of 0.01 to 10 111 from the viewpoint of gas barrier properties and productivity. It is particularly preferably in the range of 0.05 to 5 m, particularly preferably in the range of 0.05 to 1 ⁇ m.
- the lamination mode of the layer (a) formed from the coating liquid (A) and the layer (b) formed from the coating liquid (B) may be, for example, one side of the support.
- the oxygen permeability at a temperature of 30 ° C and a relative humidity of 0% is preferably 1000 cm 3 (STP) / m 2 ⁇ day ⁇ MPa or less, 500 cm 3 (STP) / ⁇ day ⁇ MPa or less is more preferable, 100 cm 3 (STP) / ⁇ day • MPa or less is particularly preferable, and 70 cm 3 (STP) / ⁇ ⁇ day ⁇ MPa or less Most preferably.
- packaging materials for precision metal parts such as foods, beverages, chemicals, pharmaceuticals and electronic parts
- it can be suitably used as a packaging material for articles that require treatment (heat sterilization) under high-temperature hot water conditions such as retort sterilization, or a package thereof.
- a packaging material is sufficient to prevent whitening even when the packaging material is exposed to cold water of 30 ° C or lower, for example, when the packaging material is used for heat sterilization packaging.
- it since it has excellent gas barrier properties and transparency, it can be suitably used as a packaging material particularly for heat sterilization packaging.
- the gas nore multilayer film of the present invention comprises the gas nore laminate described above and a plastic film laminated on at least one surface of the gas barrier laminate.
- Such a plastic film is appropriately selected in accordance with purposes such as imparting strength, providing sealing properties, easy opening when sealing, imparting design properties, imparting light blocking properties, imparting moisture resistance, and the like.
- a film made of the same material as the plastics in the support described above can be used.
- Such plastic films may be used alone or in a laminate of two or more.
- the thickness of such a plastic film is preferably 1 to 1000 ⁇ m, more preferably 5 to 500 m, and particularly preferably 5 to 200 m. 5 to 150 / zm is most preferable.
- the oxygen permeability at a temperature of 30 ° C. and a relative humidity of 0% is preferably 1000 cm 3 (STP) / m 2 ⁇ day ⁇ MPa or less, and 500 cm 3 (STP ) / ⁇ Day ⁇ MPa or less, more preferably 100 cm 3 (STP) / 2 ⁇ day MPa or less, particularly preferably 70 cm 3 (STP) Zm 2 'day' MPa or less preferable.
- the oxygen permeability in a high humidity atmosphere at a temperature of 30 ° C and a relative humidity of 80% is 100 cm 3 (STP) / m 2 ⁇ day ⁇ MPa or less, preferably 70cm 3 (STP) / ⁇ ⁇ day ⁇ MPa or less, more preferably 50cm 3 (STP) Zm 2 'day MPa or less Good.
- the lamination mode of the plastic film in such a gas barrier multilayer film is not particularly limited.
- polyethylene terephthalate Z layer (a) Z layer (b) Z Polyolefin, nylon Z layer (a) Z layer (b) Z polyolefin, polypropylene Z layer (a) Z layer (b) Z polyolefin, paper Z layer (a) Z layer (b) Z polyolefin, polyethylene terephthalate Z layer (A) Z layer (b) Z layer (a) Z polyolefin, polyethylene terephthalate / layer ( a ) / layer (b) / nylon / polyolefin, polyethylene terephthalate Z layer (a) Z layer (b) Z metal deposited nylon Z polyolefin is preferred, and is listed as a laminated form.
- polyethylene terephthalate Z layer (a) Z layer (b) Z polyolefin, polyethylene terephthalate Z layer (a) Z layer (b) Z nylon Z polyolefin, polyethylene terephthalate Z layer (a) Z layer (b) Polyethylene terephthalate Z layer (a) Z layer (b) Z polyolefin, polyethylene terephthalate Z layer (a) Z layer (b) Z nylon Z polyolefin is particularly preferred.
- the method for producing a gas barrier film of the present invention comprises the step of applying the coating liquid (A) described above to at least one side of the above-mentioned support and then drying to form a layer (a) formed from the coating liquid (A) This is a method of obtaining a gas noorious film having
- the method of applying the coating liquid (A) is not particularly limited !, but, for example, a hair knife coater, direct gravure coater, gravure offset, arc gravure coater, top feed reverse coater, bottom Examples include feed reverse coaters and nozzles, and reno-slow roll coaters such as feed reno-cut scouters; coating using a five-row roll coater, lip coater, bar coater, bar reverse coater, and die coater.
- the method of drying the coating liquid (A) is not particularly limited, but a method of natural drying, a method of drying in an oven set at a predetermined temperature, a dryer attached to a coater, for example, Examples of the method include using an arch dryer, a floating dryer, a drum dryer, and an infrared dryer.
- the drying temperature is preferably 40 to 350 ° C. 45 to 325 ° C. It is particularly preferable that the temperature is 50 to 300 ° C.
- the drying time is preferably 0.5 seconds to 10 minutes, more preferably 1 second to 5 minutes, and particularly preferably 1 second to 1 minute! /.
- the method for producing a gas- noble laminate of the present invention comprises applying the coating liquid (A) and the coating liquid (B) described above to at least one side of the support and then drying the coating liquid (A).
- a gas nozzle having at least one pair of stacked units in which the layer (a) formed from A) and the layer (b) formed from the coating liquid (B) are adjacent to each other. This is a method for obtaining a conductive laminate.
- Examples of the method of applying the coating liquid (A) and the method of drying include the methods described above.
- a method of applying the coating liquid (B) and a method of drying the method similar to the method of applying the coating liquid (A) and the method of drying in the method for producing a gas barrier film described above are used.
- Other examples include vapor phase coating methods such as vapor deposition, sputtering, and ion plating.
- the coating liquid (A) and the coating liquid (B) are applied in the order of coating the coating liquid (A) on at least one surface of the support and drying the coating liquid (A).
- the liquid (B) may be applied and dried.
- At least one surface of the support may be coated with the coating liquid (B) and dried, and then the coating liquid (A) is applied and dried. Do it.
- the method for producing a gas no multilayer multilayer film of the present invention is a method for obtaining the gas no multilayer multilayer film described above by laminating a plastic film on at least one side of the gas barrier laminate described above.
- a known laminating method can be appropriately selected and is not particularly limited, and examples thereof include a dry laminating method, a wet laminating method, and an extrusion laminating method.
- the oxygen permeability coefficient of the starting polycarboxylic acid polymer was measured by the following method.
- a solution obtained by diluting 5 parts by mass of polyacrylic acid (polycarboxylic acid polymer) with 100 parts by mass of water is used on a corona-treated surface of a biaxially stretched polyester film (support) with a thickness of 12 m.
- the oxygen permeability coefficient was measured using a film sample that had been coated and dried at 90 ° C for 30 seconds. That is, oxygen permeation tester (OX-TRAN2Z20; manufactured by MOCON) was used to measure the oxygen permeability of the film sample at a temperature of 30 ° C. and 0% relative humidity (RH) on both sides.
- OX-TRAN2Z20 oxygen permeation tester
- a coating solution (A) was prepared in the same manner as in Example 1 except that 0.20 chemical equivalent of zinc oxide was used relative to the amount of carboxyl groups of polyacrylic acid.
- polyacrylic acid (Alon A—10H)
- polyacrylic acid manufactured by Polysciences, Mn: 50, 000, oxygen permeability coefficient 50 cm 3 (STP) mZm 2 'day' MPa
- STP oxygen permeability coefficient 50 cm 3
- a coating solution (A) was prepared in the same manner as in Example 2.
- a comparative coating solution (A) was prepared in the same manner as in Example 1 except that 0.30 chemical equivalent of zinc oxide was used relative to the amount of carboxyl groups of polyacrylic acid.
- * 2 Indicates the chemical equivalent of the sulfurous compound to the carboxyl group of the polycarboxylic acid.
- the coating liquid (A) obtained in Example 2 was applied to the corona-treated surface of a 12-m thick biaxially stretched polyester film (support) using a Mayer bar and dried at 90 ° C for 30 seconds. After drying, a gas nore film having a thickness of 0.3 ⁇ m of the layer (a) formed from the coating liquid (A) was obtained.
- a gas-nore film was obtained in the same manner as in Example 4 except that the coating liquid (A) obtained in Example 3 was used in place of the coating liquid (A) obtained in Example 2.
- polyacrylic acid manufactured by Toagosei Co., Ltd., Aalon A-10H, Mn: 200, 000, oxygen permeability 50 cm 3 (STP) ⁇ / ⁇ ⁇ 2 (1 & ⁇ ⁇ ⁇ &) 5 parts by weight in water
- a comparative coating solution ( ⁇ ) was prepared by diluting with 100 parts by mass, and the obtained comparative coating solution ( ⁇ ) was used instead of the coating solution ( ⁇ ) obtained in Example 2.
- a comparative gas noorious film was obtained in the same manner as in Example 4 except that it was used.
- polyacrylic acid manufactured by Toagosei Co., Ltd., Aaron ⁇ -10 ⁇ , ⁇ : 200,000, oxygen permeability coefficient 50cm 3 (STP) ⁇ / ⁇ ⁇ 2 ⁇ (1 & ⁇ ⁇ ⁇ &) 5 parts by weight in water Dilute with 100 parts by mass, and then add 0.03 chemical equivalent of zinc oxide to the amount of carboxyl groups in polyacrylic acid and stir at room temperature for 2 days to prepare a comparative coating solution ( ⁇ ). Then, in place of the coating solution ( ⁇ ) obtained in Example 2, the comparative coating solution ( ⁇ ) obtained was used in the same manner as in Example 4 except that the comparative gas nooricity was used. A film was obtained.
- STP oxygen permeability coefficient 50cm 3
- polyacrylic acid manufactured by Toagosei Co., Ltd., Aalon A-10H, Mn: 200, 000, oxygen permeability 50 cm 3 (STP) ⁇ / ⁇ ⁇ 2 (1 & ⁇ ⁇ ⁇ &) 5 parts by weight in water
- 0.03 chemical equivalent of magnesium hydroxide was added to the amount of carboxyl groups of polyacrylic acid, and the mixture was stirred at room temperature for 2 days.
- the coating solution ( ⁇ ) obtained in Example 2 instead of the coating solution ( ⁇ ) obtained in Example 2, the comparative coating solution ( ⁇ ) obtained was used in the same manner as in Example 4 for comparison. A gas-nore film was obtained.
- polyacrylic acid manufactured by Toagosei Co., Ltd., Aaron ⁇ -10 ⁇ , ⁇ : 200,000, oxygen permeability coefficient 50cm 3 (STP) ⁇ / ⁇ ⁇ 2 ⁇ (1 & ⁇ ⁇ ⁇ &) 5 parts by weight in water Dilute with 100 parts by mass, and then add 0.03 chemical equivalent of hydroxyl power to the amount of carboxyl group of polyacrylic acid and stir at room temperature for 2 days. Then, instead of the coating solution ( ⁇ ) obtained in Example 2, the comparative coating solution ( ⁇ ) obtained was used in the same manner as in Example 4 for comparison. A gas noorious film was obtained.
- STP oxygen permeability coefficient 50cm 3
- polyacrylic acid manufactured by Nippon Pure Chemical Co., Ltd., Jurimer AC-10L, Mn: 25,000, oxygen permeability coefficient 50cm 3 (STP) ⁇ / ⁇ ⁇ 2 ⁇ (1 & ⁇ ⁇ ⁇ &) 5 parts by mass Dilute with 100 parts by weight of water, then add 0.10 chemical equivalents of zinc oxide to the amount of carboxyl groups in polyacrylic acid, and stir at room temperature for 2 days. Then, instead of the coating solution ( ⁇ ) obtained in Example 2, the comparative coating solution ( ⁇ ) obtained was used in the same manner as in Example 4 for comparison. A gas noorious film was obtained.
- STP oxygen permeability coefficient 50cm 3
- the obtained gas-nore film was immersed in cold water at a temperature of 20 ° C. for 1 second, and the taken-out sample was used as a film sample to measure oxygen permeability, and the water resistance of the gas barrier film was evaluated based on the measured value. . That is, oxygen permeation tester (OX-TRAN2Z20; MOCON The oxygen permeability of the film sample was measured at a temperature of 30 ° C. and 0% relative humidity (RH) on both sides. If the measured value of oxygen permeability is less than 50 cm 3 (STP) Zm 2 'day y MPa, it is judged as ⁇ passed'', and if the measured oxygen permeability is 50 cm 3 (STP) / 2 It was determined as “failed”. Table 2 shows the results obtained and the compositions of the coating solutions used in the examples and comparative examples. In addition, Table 2 shows the results of measuring oxygen permeability of a biaxially stretched polyester film with a thickness of 12 m as Reference Example 1.
- * 4 Indicates the chemical equivalent of the metal compound relative to the carboxyl group of the polycarboxylic acid.
- Example 2 the coating solution (A) obtained in Example 2 was applied to the corona-treated surface of a biaxially stretched polyester film (support) having a thickness of 12 / zm using a Mayer bar, and the temperature was 90 °. After drying for 30 seconds at C, a layer (a) formed from a coating solution (A) having a thickness of 0.3 ⁇ m was formed.
- a coating liquid (B) obtained by dispersing 10 parts by mass of zinc oxide fine particles having an average particle diameter of 20 nm in 100 parts by mass of water was applied to the surface of the layer (a) using a Mayer bar, and the temperature was 90
- a layer (b) formed from a coating solution (B) having a thickness of 0.5 m was formed by drying at ° C for 30 seconds to produce a gas no laminate.
- a gas-noir laminate was produced in the same manner as in Example 6 except that the coating liquid (A) obtained in Example 3 was used in place of the coating liquid (A) obtained in Example 2.
- the coating liquid (A) used in Comparative Example 2 (Comparative Example 8), the coating liquid used in Comparative Example 3 (A) (Comparative Example 9), Coating liquid (A) used in Comparative Example 4 (Comparative Example 10), Coating liquid used in Comparative Example 5 (A) (Comparative Example 11), Coating liquid used in Comparative Example 6 (A) (Comparative Example 12)
- a comparative gas barrier laminate was produced in the same manner as in Example 6 except that the coating liquid (A) (Comparative Example 13) used in Comparative Example 7 was used.
- the oxygen permeability was measured using the obtained gas barrier laminate as a film sample.
- the oxygen permeability of the film sample was measured using an oxygen permeation tester (OX-TRAN2Z20; manufactured by MOCON) at a temperature of 30 ° C and 0% relative humidity (RH) on both sides.
- the unit is cm 3 (STP) / m 2 'day'MPa.
- the appearance of the film sample was visually observed to evaluate the water resistance of the gas-nominated laminate. Film sample is not whitened and transparent A case where no badness of brightness was observed was judged as “pass”, and a case where transparency of the film sample due to whitening or film destruction was seen was judged as “fail”.
- Table 3 shows the results obtained and the compositions of the coating solutions used in Examples and Comparative Examples.
- the amount of polyacrylic acid in the coating liquid (A) is 5 parts by mass with respect to 100 parts by mass of water.
- the coating solution (A) obtained in Example 2 was applied to the corona-treated surface of a biaxially stretched polyester film (support) having a thickness of 12 / zm using a Mayer bar, and the temperature was 90 °. After drying for 30 seconds at C, a layer (a) formed from a coating solution (A) having a thickness of 0.3 ⁇ m was formed. Next, a zinc oxide fine particle toluene dispersion (manufactured by Sumitomo Osaka Cement Co., Ltd., zinc oxide dispersion paint ZR133, solid content concentration 33% by mass) was applied to the surface of the layer (a) using a Mayer bar. Then, it was dried at a temperature of 90 ° C. for 30 seconds to form a layer (b) formed from a coating solution (B) having a thickness of 0.5 m, thereby preparing a gas nori laminate.
- a zinc oxide fine particle toluene dispersion manufactured by Sumitomo Osaka Cement
- a gas-nominated laminate was produced in the same manner as in Example 8, except that the coating liquid (A) obtained in Example 3 was used instead of the coating liquid (A) obtained in Example 2.
- the coating liquid (A) used in Comparative Example 2 (Comparative Example 14), the coating liquid used in Comparative Example 3 (A) (Comparative Example 15), Coating liquid (A) used in Comparative Example 4 (Comparative Example 16), Coating liquid used in Comparative Example 5 (A) (Comparative Example 17), Coating liquid used in Comparative Example 6 (A) (Comparative Example 18)
- a comparative gas no laminate was produced in the same manner as in Example 8 except that the coating liquid (A) (Comparative Example 19) used in Comparative Example 7 was used.
- the obtained gas nori laminate was immersed in cold water at 20 ° C. for 3 minutes as a film sample, and water resistance and oxygen permeability after immersion in cold water were evaluated or measured. That is, the appearance of the film sample after immersion in cold water was visually observed to evaluate the water resistance of the gas barrier laminate.
- the case where the film sample was not whitened and the transparency was not bad was judged as “good”, and the case where the film sample was whitened was judged as “whitened”. Also, with the above
- the gas barrier laminate of the present invention has excellent water resistance and gas nore properties even when exposed to cold water. Therefore, according to the present invention, even when the packaging material is exposed to cold water of 30 ° C. or less, the occurrence of whitening is sufficiently prevented, and the packaging has excellent gas strength and transparency. It was confirmed that the material could be obtained.
- the coating solution (A) obtained in Example 2 was applied to the corona-treated surface of a biaxially stretched polyester film (support) having a thickness of 12 / zm using a Mayer bar, and the temperature was 90 °. After drying for 30 seconds at C, a layer (a) formed from a coating solution (A) having a thickness of 0.3 ⁇ m was formed. Next, a coating liquid (B) obtained by dispersing 10 parts by mass of zinc oxide fine particles having an average particle diameter of 20 nm in 100 parts by mass of water is applied to the surface of the layer (a) using a Mayer bar. Then, it was dried at a temperature of 90 ° C.
- an urethane adhesive was applied to the surface of the layer (b), and then a polypropylene film having a thickness of 60 ⁇ m was laminated to prepare a gas no multilayer film.
- a urethane adhesive (Takelac A-620, hardener: Takenate A-65, made by Mitsui Takeda Chemical Co., Ltd.) is applied to the corona-treated surface of a 12 m thick biaxially stretched polyester film (support). Coating was performed using a Mayer bar to a thickness of 1 ⁇ m, and dried at a temperature of 90 ° C. for 30 seconds to form an anchor coat layer. Then, a gas-nore multilayer film was produced in the same manner as in Example 10 except that the coating liquid (A) was applied to the surface of the anchor coat layer.
- the coating liquid (A) was applied to the surface of the anchor coat layer.
- a gas multilayer multilayer film was prepared in the same manner as in Example 10 except that the coating liquid (A) obtained in Example 3 was used instead of the coating liquid (A) obtained in Example 2. [0101] (Example 13)
- a gas-noisy multilayer film was produced in the same manner as in Example 10 except that a biaxially stretched polyamide film having a thickness of 15 ⁇ m was used instead of the biaxially stretched polyester film having a thickness of 12 ⁇ m.
- a urethane adhesive Takelac A-620, hardener: Takenate A-65, manufactured by Mitsui Takeda Chemical Co., Ltd.
- the coating was applied using a Mayer bar to a thickness of 1 ⁇ m and dried at 90 ° C. for 30 seconds to form an anchor coat layer.
- a gas-nore multilayer film was produced in the same manner as in Example 10 except that the coating liquid (A) was applied to the surface of the anchor coat layer.
- the coating liquid (A) used in Comparative Example 2 (Comparative Example 20), the coating liquid used in Comparative Example 3 (A) (Comparative Example 21), Coating liquid (A) used in Comparative Example 4 (Comparative Example 22), Coating liquid used in Comparative Example 5 (A) (Comparative Example 23), Coating liquid used in Comparative Example 6 (A) (Comparative Example 24)
- a gas multilayer multilayer film for comparison was produced in the same manner as in Example 10 except that the coating liquid (A) (Comparative Example 25) used in Comparative Example 7 was used.
- the gas permeability multilayer film thus obtained was used as a film sample to measure oxygen permeability.
- the temperature was 30 using an oxygen permeation tester (OX-TRAN2Z20; manufactured by MOCON).
- the oxygen permeability of the film sample was measured under the conditions of C, both sides 0% relative humidity (RH).
- the unit is cm 3 (STP) Zm 2 'day' MPa.
- STP cm 3
- the external appearance of the film sample was visually observed to evaluate the water resistance of the gas no multilayer multilayer film. If the film sample is not whitened and does not show any bad transparency, it is judged as “Pass”, and if the film sample shows bad transparency due to whitening or film destruction, it is judged as “Fail”. It was determined.
- Table 5 shows the results obtained and the composition of the support and coating liquid (A) used in the examples and comparative examples.
- the amount of polyacrylic acid in the coating solution (A) is 5 parts by mass with respect to 100 parts by mass of water.
- the coating solution (A) obtained in Example 2 was applied to the corona-treated surface of a biaxially stretched polyester film (support) having a thickness of 12 / zm using a Mayer bar, and the temperature was 90 °. After drying for 30 seconds at C, a layer (a) formed from a coating solution (A) having a thickness of 0.3 ⁇ m was formed. Next, on the surface of the layer (a), a zinc oxide fine particle toluene dispersion (manufactured by Sumitomo Osaka Cement Co., Ltd., zinc oxide-dispersed paint ZR133, solid content concentration 33 mass%) is used with a Mayer bar.
- a zinc oxide fine particle toluene dispersion manufactured by Sumitomo Osaka Cement Co., Ltd., zinc oxide-dispersed paint ZR133, solid content concentration 33 mass
- a gas barrier laminate was produced.
- a urethane adhesive was applied to the surface of the layer (b), and then a polypropylene film having a thickness of 60 m was laminated to prepare a gas no multilayered film.
- a urethane adhesive (Takelac A-620, hardener: Takenate A-65, made by Mitsui Takeda Chemical Co., Ltd.) is applied to the corona-treated surface of a 12 m thick biaxially stretched polyester film (support). Coating was performed using a Mayer bar to a thickness of 1 ⁇ m, and dried at a temperature of 90 ° C. for 30 seconds to form an anchor coat layer. Then, a gas-nore multilayer film was produced in the same manner as in Example 15 except that the coating liquid (A) was applied to the surface of the anchor coat layer.
- the coating liquid (A) was applied to the surface of the anchor coat layer.
- a gas multilayer multilayer film was produced in the same manner as in Example 15 except that the coating liquid (A) obtained in Example 3 was used instead of the coating liquid (A) obtained in Example 2. .
- Example 15 In the same manner as in Example 15, except that a biaxially stretched polyamide film having a thickness of 15 ⁇ m was used in place of the biaxially stretched polyester film having a thickness of 12 ⁇ m, a gas-nore multilayer film was used. Rum was made.
- a urethane adhesive Takelac A-620, hardener: Takenate A-65, manufactured by Mitsui Takeda Chemical Co., Ltd.
- the coating was applied using a Mayer bar to a thickness of 1 ⁇ m and dried at 90 ° C. for 30 seconds to form an anchor coat layer.
- a gas-nore multilayer film was produced in the same manner as in Example 15 except that the coating liquid (A) was applied to the surface of the anchor coat layer.
- the coating liquid (A) used in Comparative Example 2 (Comparative Example 26), the coating liquid used in Comparative Example 3 (A) (Comparative Example 27), Coating liquid (A) used in Comparative Example 4 (Comparative Example 28), Coating liquid used in Comparative Example 5 (A) (Comparative Example 29), Coating liquid used in Comparative Example 6 (A) (Comparative Example 30)
- a gas multilayer multilayer film for comparison was produced in the same manner as in Example 15 except that the coating liquid (A) (Comparative Example 31) used in Comparative Example 7 was used.
- the oxygen permeability (temperature 30 ° C, humidity 80% RH) in a high humidity atmosphere was measured. That is, using an oxygen permeation tester (OX-TRAN2Z20; manufactured by MOCON), the oxygen permeability of the film sample was measured under the conditions of a temperature of 30 ° C. and 80% relative humidity (RH) on both sides.
- the unit is cm 3 (STP) Zm 2 • day'MPa.
- Table 6 shows the results obtained and the compositions of the support and the coating liquid (A) used in Examples and Comparative Examples.
- the amount of polyacrylic acid in the coating liquid (A) is 5 parts by mass with respect to 1 part of water 1 O Og.
- * 12 Indicates the chemical equivalent of the gold salt compound relative to the carboxyl group of polyacrylic acid.
- Example 16 The polypropylene film surfaces of the gas barrier multilayer film obtained in Example 16 were heat-sealed with an impulse sealer to produce a three-sided seal patch of size 25 cm ⁇ 15 cm. Thereafter, this bouch was filled with 200 g of water and hermetically sealed to obtain a package.
- the obtained package was immersed in water at 20 ° C for 24 hours, and the appearance and oxygen permeability of the package after the immersion treatment were evaluated or measured. That is, when the appearance of the package after the immersion treatment was visually evaluated, the transparency of the package was good. Also, when the oxygen permeability was measured using the impulse sealer, the part that had been heated by the impulse sealer was cut out from the package after the immersion treatment, and the oxygen permeability was measured using it as a sample, the oxygen permeability was 18 cm 3 (STP) Zm 2 'day MP a. The oxygen permeability was measured using an oxygen permeability tester (OX-TRAN2Z20; manufactured by MOCON) under the conditions of a temperature of 30 ° C. and 0% relative humidity (RH) on both sides.
- OX-TRAN2Z20 oxygen permeability tester
- the obtained package was sterilized using a high-pressure kettle at a temperature of 120 ° C and a pressure of 2.5 kgZcm 2 for 30 minutes.
- the appearance and oxygen permeation of the package after sterilization were performed.
- the degree was evaluated or measured by the same method as described above. As a result, the transparency of the package after the sterilization treatment was good.
- the oxygen permeability of the sample cut out from the package after sterilization was 10 cm 3 (STP) / m 2 ⁇ day ⁇ MPa.
- the present invention for example, when a packaging material is used for heat sterilization packaging, whitening even when the packaging material is exposed to cold water of 30 ° C or lower.
- the coating liquid for obtaining a packaging material having gasnolianess and transparency that is sufficiently prevented from generating gas, and a gasnolia film, a gas barrier laminate and a gasnolia multilayer film using the same, and production thereof It becomes possible to provide a method.
- the present invention is susceptible to deterioration due to the influence of oxygen and the like, and is processed under high-temperature hot-water conditions such as packaging materials for precision metal parts such as foods, beverages, chemicals, pharmaceuticals, and electronic parts, boil, retort sterilization, etc. It is useful as a technique for packaging materials for articles that require heat sterilization, and is particularly useful as a technique for packaging materials for heat sterilization packaging applications.
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- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Wrappers (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07741211.2A EP2014730B1 (en) | 2006-04-26 | 2007-04-06 | Coating liquid, gas barrier film, gas barrier laminate and gas barrier multilayer film each using the coating liquid, and their production methods |
US12/226,712 US7807272B2 (en) | 2006-04-26 | 2007-04-06 | Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methods |
JP2008513128A JP5278802B2 (ja) | 2006-04-26 | 2007-04-06 | コーティング液、それを用いたガスバリア性フィルム、ガスバリア性積層体及びガスバリア性多層フィルム、並びにそれらの製造方法 |
Applications Claiming Priority (2)
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JP2006-121602 | 2006-04-26 | ||
JP2006121602 | 2006-04-26 |
Publications (1)
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WO2007125741A1 true WO2007125741A1 (ja) | 2007-11-08 |
Family
ID=38655276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/057775 WO2007125741A1 (ja) | 2006-04-26 | 2007-04-06 | コーティング液、それを用いたガスバリア性フィルム、ガスバリア性積層体及びガスバリア性多層フィルム、並びにそれらの製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7807272B2 (ja) |
EP (1) | EP2014730B1 (ja) |
JP (1) | JP5278802B2 (ja) |
WO (1) | WO2007125741A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010061705A1 (ja) | 2008-11-25 | 2010-06-03 | 株式会社クレハ | コーティング液、ガスバリア性積層体 |
WO2010074341A1 (ja) | 2008-12-26 | 2010-07-01 | 花王株式会社 | セルロース繊維の懸濁液とその製造方法及び膜状成形体とその製造方法 |
JP2013203467A (ja) * | 2012-03-29 | 2013-10-07 | Toppan Printing Co Ltd | 液体用紙容器 |
US8808816B2 (en) | 2006-12-01 | 2014-08-19 | Toppan Printing Co., Ltd. | Coating liquid, gas-barrier multilayer structure and gas-barrier shaped article therefrom, and process for producing gas-barrier multilayer structure |
JP2016159916A (ja) * | 2015-02-27 | 2016-09-05 | 日本テトラパック株式会社 | 包装容器用シーリングテープ及び包装容器 |
JPWO2022075030A1 (ja) * | 2020-10-08 | 2022-04-14 |
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WO2011023587A2 (de) | 2009-08-24 | 2011-03-03 | Basf Se | Verwendung von polyelektrolytkomplexen zur herstellung von polymerfolien mit sauerstoffbarriereeigenschaften |
DK2723565T3 (en) | 2011-06-22 | 2015-06-01 | Basf Se | COATED, polymeric oxygen barrier properties |
US9574100B2 (en) | 2011-06-22 | 2017-02-21 | Basf Se | Coated polymer foils with oxygen barrier properties |
CN106995510B (zh) * | 2016-01-26 | 2020-12-25 | 上海新健利新材料科技有限公司 | 水性钢结构防腐蚀水分散体涂料及其制备方法和应用 |
JP7467937B2 (ja) * | 2020-01-27 | 2024-04-16 | Toppanホールディングス株式会社 | ガスバリア性積層体、その製造用のコーティング液、包装材料、包装体及び包装物品 |
JP7088361B1 (ja) * | 2021-04-22 | 2022-06-21 | 凸版印刷株式会社 | ガスバリア性積層体、包装材料、包装体及び包装物品 |
CN115568417B (zh) * | 2022-10-24 | 2023-09-05 | 广西南亚热带农业科学研究所 | 一种澳洲坚果液体喷雾授粉方法 |
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WO2000006619A1 (en) | 1998-07-27 | 2000-02-10 | E.I. Du Pont De Nemours And Company | Mixed-metal-neutralized-copolymer-resins for metal coating powder applications |
EP1086981A1 (en) | 1998-04-15 | 2001-03-28 | Kureha Chemical Industry Co., Ltd. | Gas-barrier films |
WO2003091317A1 (en) * | 2002-04-23 | 2003-11-06 | Kureha Chemical Industry Company, Limited | Film and process for producing the same |
JP2004315586A (ja) * | 2003-04-11 | 2004-11-11 | Toyo Ink Mfg Co Ltd | ガスバリア性積層体の製造方法 |
JP2005125693A (ja) * | 2003-10-27 | 2005-05-19 | Tohcello Co Ltd | ガスバリア性積層フィルム |
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EP1676699B1 (en) * | 2003-10-22 | 2010-12-08 | Kureha Corporation | Multilayer body and method for producing same |
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JPWO2007125742A1 (ja) * | 2006-04-26 | 2009-09-10 | 株式会社クレハ | コーティング液、それを用いたガスバリア性フィルム、ガスバリア性積層体及びガスバリア性多層フィルム、並びにそれらの製造方法 |
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- 2007-04-06 EP EP07741211.2A patent/EP2014730B1/en active Active
- 2007-04-06 US US12/226,712 patent/US7807272B2/en active Active
- 2007-04-06 JP JP2008513128A patent/JP5278802B2/ja active Active
- 2007-04-06 WO PCT/JP2007/057775 patent/WO2007125741A1/ja active Application Filing
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WO2000006619A1 (en) | 1998-07-27 | 2000-02-10 | E.I. Du Pont De Nemours And Company | Mixed-metal-neutralized-copolymer-resins for metal coating powder applications |
WO2003091317A1 (en) * | 2002-04-23 | 2003-11-06 | Kureha Chemical Industry Company, Limited | Film and process for producing the same |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8808816B2 (en) | 2006-12-01 | 2014-08-19 | Toppan Printing Co., Ltd. | Coating liquid, gas-barrier multilayer structure and gas-barrier shaped article therefrom, and process for producing gas-barrier multilayer structure |
WO2010061705A1 (ja) | 2008-11-25 | 2010-06-03 | 株式会社クレハ | コーティング液、ガスバリア性積層体 |
US8642146B2 (en) | 2008-11-25 | 2014-02-04 | Chisato Fujimura | Coating liquid and gas barrier laminate |
WO2010074341A1 (ja) | 2008-12-26 | 2010-07-01 | 花王株式会社 | セルロース繊維の懸濁液とその製造方法及び膜状成形体とその製造方法 |
JP2013203467A (ja) * | 2012-03-29 | 2013-10-07 | Toppan Printing Co Ltd | 液体用紙容器 |
JP2016159916A (ja) * | 2015-02-27 | 2016-09-05 | 日本テトラパック株式会社 | 包装容器用シーリングテープ及び包装容器 |
JPWO2022075030A1 (ja) * | 2020-10-08 | 2022-04-14 |
Also Published As
Publication number | Publication date |
---|---|
JP5278802B2 (ja) | 2013-09-04 |
US7807272B2 (en) | 2010-10-05 |
US20090098399A1 (en) | 2009-04-16 |
JPWO2007125741A1 (ja) | 2009-09-10 |
EP2014730B1 (en) | 2016-07-27 |
EP2014730A1 (en) | 2009-01-14 |
EP2014730A4 (en) | 2009-07-29 |
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