WO2007034940A1 - ガスバリア性積層体 - Google Patents
ガスバリア性積層体 Download PDFInfo
- Publication number
- WO2007034940A1 WO2007034940A1 PCT/JP2006/318948 JP2006318948W WO2007034940A1 WO 2007034940 A1 WO2007034940 A1 WO 2007034940A1 JP 2006318948 W JP2006318948 W JP 2006318948W WO 2007034940 A1 WO2007034940 A1 WO 2007034940A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas barrier
- layer
- resin
- gas
- metal compound
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
- C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- 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
- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
-
- 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
- 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
- C08J7/056—Forming hydrophilic coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/105—Metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
-
- 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 relates to a gas nore laminate having excellent gas nore property even under high humidity.
- thermoplastic resin films such as polyamide films and polyester films are excellent in strength, transparency, and moldability, and are therefore used in a wide range of applications as packaging materials.
- these thermoplastic resin films have a large gas permeability such as oxygen, when used for packaging general foods, retorted foods, cosmetics, medical supplies, agricultural chemicals, etc., they must be stored for a long time. The contents may be altered by oxygen or other gas that has passed through the film. Therefore, the surface of the thermoplastic resin is coated with emulsion of polysalt vinylidene (hereinafter abbreviated as “PVDC”).
- PVDC polysalt vinylidene
- PVDC Polybulal alcohol
- a copolymer of vinyl alcohol and ethylene (hereinafter abbreviated as "EVOH”) is known as a polymer that has improved the degradation of gas noble properties under high humidity of PVA.
- EVOH ethylene
- the use of organic solvents is an environmental problem. From the standpoint, there is a problem that the cost of the organic solvent is increased because it requires an undesired organic solvent recovery step.
- heat treatment at a high temperature may cause discoloration or decomposition of PVA that constitutes the gas barrier layer, and may cause deformation such as the formation of wrinkles on the base material such as plastic film by laminating the gas noria layer. Can no longer be used as a material.
- a special heat-resistant film that can withstand high-temperature heating as the substrate, which is difficult in terms of versatility and economy.
- the heat treatment temperature is low, it is necessary to perform the treatment for a very long time, and the productivity is lowered.
- the gas barrier layer forming paint described in Patent Documents 8 to 10 uses a water-soluble polymer.
- a gas nore laminate having a gas nore property can be formed at a lower temperature or in a shorter time than the coating agents described in Patent Documents 1 to 7 and higher than conventional in a high humidity.
- the hydroxyl group in PVA and the COOH in the ethylene-maleic acid copolymer are reacted with each other by an ester reaction, or by introducing a metal cross-linked structure. There was a limit to the improvement of gas noria property under high humidity
- Patent Documents 11 to 14 a gas barrier coating material comprising a composition obtained by partially neutralizing PVA and ethylene-maleic acid copolymer with a specific metal salt is heat-treated, so that those described in Patent Documents 8 to 10 are obtained.
- Methods for heat treatment in the presence of water (or water containing a specific metal) include hot water immersion, hot water spraying, storage under high humidity, water vapor heating, etc., and a processing temperature of 90 ° C. As described above, a treatment time of 1 minute or longer is preferred.
- Patent Document 1 Japanese Patent Laid-Open No. 06-220221
- Patent Document 2 Japanese Patent Application Laid-Open No. 07-102083
- Patent Document 3 Japanese Patent Application Laid-Open No. 07-205379
- Patent Document 4 Japanese Patent Application Laid-Open No. 07-266441
- Patent Document 5 Japanese Patent Application Laid-Open No. 08-041218
- Patent Document 6 JP-A-10_237180
- Patent Document 7 JP 2000-000931 A
- Patent Document 8 JP 2001-323204 A
- Patent Document 9 Japanese Patent Application Laid-Open No. 2002-020677
- Patent Document 10 JP 2002-241671 A
- Patent Document 11 Japanese Unexamined Patent Application Publication No. 2004-115776
- Patent Document 12 Japanese Unexamined Patent Application Publication No. 2004-137495
- Patent Document 13 Japanese Unexamined Patent Application Publication No. 2004-136281
- Patent Document 14 Japanese Unexamined Patent Application Publication No. 2004-322626
- An object of the present invention is to provide a transparent gas barrier laminate having a higher gas barrier property under high humidity and a milder condition than in the past while using a water-soluble polymer. It is to provide a method that can be efficiently produced.
- the present inventors apply a gas-based paint having a specific resin composition on a plastic substrate, heat-treat, and then form a paint film having a specific composition as a layer adjacent thereto. As a result, the inventors have found that the above problems can be solved, and have reached the present invention.
- the present invention relates to a gas barrier layer (II) formed from a plastic substrate (I); a gas barrier layer-forming paint (C) containing a polyalcohol-based polymer (A) and a polystrengthen sulfonic acid polymer (B). ); And a resin layer (III) formed from a monovalent metal compound (D) or a resin coating (F) containing a monovalent metal compound (D) and a bivalent or higher metal compound (E)
- the gas barrier layer ( ⁇ ) is laminated on the plastic substrate (I) directly or via the anchor coat layer, and the resin layer (III) is The present invention relates to a gas noble laminate laminated on a gas noble layer ( ⁇ ).
- Another aspect of the present invention relates to a packaging material including the gas barrier laminate according to the present invention.
- the gas no laminate (hereinafter sometimes simply referred to as “laminate”) according to the present invention includes a plastic substrate (I); a polyalcohol polymer (A) and a polycarboxylic acid polymer.
- the gas nozzle layer ( ⁇ ) may be directly laminated on the plastic substrate (I), or on the plastic substrate (I) via the anchor coat layer, the plastic substrate Z anchor coat. The layers may be laminated in the order of the Z gas nozzle layer.
- the plastic substrate (I) is a film-like base material produced from a thermoforming thermoplastic resin by means of extrusion molding, injection molding, blow molding, stretch blow molding, or drawing. However, other base materials having various container shapes such as bottles, cups and trays may also be used.
- the plastic substrate (I) may be configured with a single laminar force, or may be configured with a plurality of laminar forces formed by, for example, simultaneous melt extrusion or other lamination. If! /.
- thermoplastic resin constituting the plastic substrate (I) includes olefin copolymers, polyesters, polyamides, styrene copolymers, vinyl chloride copolymers, acrylic copolymers, polycarbonates. Of these, olefin copolymers, polyesters and polyamides are preferred.
- Olefin-based copolymers include low-, medium- or high-density polyethylene, linear low density polyethylene, polypropylene, ethylene propylene copolymer, ethylene-butene monocopolymer, ionomer, ethylene acetate butyl copolymer. , Ethylene blue alcohol copolymer, etc .;
- polyesters examples include polylactic acid, polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate z isophthalate, polytrimethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, etc .;
- Polyamide includes nylon 6, nylon 6, 6, nylon 6, 10, nylon 4, 6, metaxylylene adipamide, etc .;
- styrene copolymer examples include polystyrene, styrene butadiene block copolymer, styrene-acrylonitrile copolymer, styrene butadiene-acrylonitrile copolymer (ABS resin), etc .;
- salt / bulb copolymer examples include polyvinyl chloride and salt / bi-rubber acetate copolymer;
- acrylic copolymer examples include polymethyl methacrylate and methyl methacrylate and ethyl acrylate copolymer
- thermoplastic rosins may be used alone or in combination of two or more.
- thermoplastic resin is polyamide such as nylon 6, nylon 66, nylon 46, etc.
- Aromatic effect such as polyethylene terephthalate, polyethylene naphthalate, polytrimethylene terephthalate, polybutylene terephthalate, polybutylene naphthalate Examples thereof include aliphatic polyester resin such as polylactic acid; polyolefin resin such as polypropylene and polyethylene, or a mixture thereof.
- the melt-moldable thermoplastic resin may contain one or more additives such as pigments, antioxidants, antistatic agents, ultraviolet absorbers, lubricants, preservatives, etc., if desired.
- additives such as pigments, antioxidants, antistatic agents, ultraviolet absorbers, lubricants, preservatives, etc., if desired.
- the total amount per 100 parts by mass of fat can also be added within the range of 0.001 to 5.0 parts by mass.
- the plastic substrate (I ) when forming a packaging material as described later using the gas barrier laminate according to the present invention, in order to secure the strength as a packaging material, the plastic substrate (I ), Those containing various reinforcing materials can be used. That is, fiber reinforcing materials such as glass fiber, aromatic polyamide fiber, carbon fiber, pulp, cotton 'linter, etc., powder reinforcing material such as carbon black and white carbon, or flaky reinforcing material such as glass flake and aluminum flake. One type or two or more types can be blended in an amount of 2 to 150 parts by mass as a total amount per 100 parts by mass of the thermoplastic resin.
- fiber reinforcing materials such as glass fiber, aromatic polyamide fiber, carbon fiber, pulp, cotton 'linter, etc.
- powder reinforcing material such as carbon black and white carbon
- flaky reinforcing material such as glass flake and aluminum flake.
- One type or two or more types can be blended in an amount of 2 to 150 parts by mass as a total amount
- scaly inorganic fine powders such as water-swellable mica, clay, etc. are used as a total amount per 100 parts by mass of the above-mentioned thermoplastic resin in an amount of 5 to LOO parts by mass. You may mix
- the gas noble layer (II) is formed of a gas barrier layer forming coating (C) containing a polyalcohol polymer (A) and a polycarboxylic acid polymer (B).
- a gas barrier layer-forming coating (C) By applying this gas barrier layer-forming coating (C) to the surface of the plastic substrate (I) and then heat-treating it, (A) and (B) are cross-linked by an ester bond to have a dense cross-linked structure. A gas barrier layer is formed.
- the blending ratio of the polyalcohol polymer (A) and the polycarboxylic acid polymer (B) is preferably such that the molar ratio of OH group to COOH group (OH group ZCOOH group) is 0.01-20. It is more preferable to contain so that it will become 0.0.01-10. It is more preferable to contain so that it may become 0.02.-5. It is most preferable to contain so that it may become 0.04-2. . If the proportion of OH groups is less than the above range, the film-forming ability may be lowered. On the other hand, if the proportion of CO OH groups is less than the above range, sufficient space between the OH group and the polyalcohol polymer (A). The crosslinked structure cannot be formed with a sufficient crosslinking density, and the gas barrier property under a high humidity atmosphere may not be sufficiently exhibited.
- the gas barrier layer-forming coating material (C) is preferably an aqueous solution or an aqueous dispersion, and more preferably an aqueous solution. Accordingly, it is preferable that the polyalcohol polymer (A) is water-soluble, and the polycarboxylic acid polymer (B) is also preferably water-soluble.
- the polyalcohol-based polymer (A) is an alcohol-based polymer having two or more hydroxyl groups in the molecule, and polybulal alcohol, a copolymer of ethylene and butyl alcohol, or a saccharide is a good example. Can be mentioned.
- the degree of saponification of polybulal alcohol, a copolymer of ethylene and butyl alcohol is preferably 95 mol% or more, more preferably 98 mol% or more, and the average degree of polymerization is 50 to 4%.
- the power of 000 is preferred, and the power of 200-3000 is preferred! / ⁇ .
- Monosaccharides, oligosaccharides and polysaccharides can be used as the saccharides.
- These saccharides include sugar alcohols, various substituted derivatives, and cyclic oligosaccharides such as cyclodextrins. These saccharides are preferably soluble in water.
- Starch is contained in the polysaccharide, for example, raw starch (unmodified starch) such as wheat starch, corn starch, corn starch, potato starch, tapio force starch, rice starch, sweet potato starch, sago starch, etc.
- raw starch unmodified starch
- modified starch include physically modified starch, enzyme-modified starch, chemically decomposed modified starch, chemically modified starch, and grafted starch obtained by graft polymerization of monomers to starch.
- processed starch that is soluble in water, such as roasted dextrin and the like, and reduced powdered sugar products obtained by alcohol-reducing their reducing ends are preferred.
- the starch may be a hydrated product.
- the above polyalcohol polymers (A) can be used alone or in combination of two or more.
- the polycarboxylic acid polymer (B) contains a carboxyl group or an acid anhydride group obtained by polymerizing a monomer (BM) having a carboxyl group or an acid anhydride group and an ethylenically unsaturated double bond.
- Polymer (BP) As the monomer (BM), those having an alitaroyl group or a methacryloyl group as an ethylenically unsaturated double bond (hereinafter referred to as a (meth) atalyloyl group together) are preferable.
- the polymer (BP) formed by polymerizing the monomer ( ⁇ ) is obtained by copolymerizing a homopolymer (BP1) obtained by polymerizing these monomers (BM) alone and a plurality of monomers (BM).
- BP2 copolymer
- B copolymerized with other monomers
- a monomer that does not have a carboxyl group or a hydroxyl group and that can be copolymerized with the monomer (BM) can be appropriately used.
- esters of unsaturated monocarboxylic acids such as crotonic acid and (meth) acrylic acid, which have no hydroxyl group or carboxyl group, (meth) acrylamide, (meth) acrylonitrile, styrene, styrenesulfonic acid, butyl
- esters of unsaturated monocarboxylic acids such as crotonic acid and (meth) acrylic acid, which have no hydroxyl group or carboxyl group
- ⁇ -olefins having 2 to 30 carbon atoms such as toluene and ethylene, alkyl butyl ethers, butyl pyrrolidone and the
- the paint (C) can contain any combination of a homopolymer (BP1), a copolymer of ⁇ ⁇ ⁇ ⁇ ⁇ ( ⁇ 2), and a copolymer of ⁇ and other monomers ( ⁇ 3). Two or more types, two or more types of copolymers ( ⁇ 2), or two or more types of copolymers ( ⁇ 3) can be contained. Alternatively, homopolymer (BP1) and copolymer ( ⁇ 2), homopolymer (BP1) and copolymer ( ⁇ 3), copolymer ( ⁇ 2) and copolymer ( ⁇ 3), homopolymer (BP1), copolymer ( ⁇ 2) and copolymer ( ⁇ 3) Such a combination may be used.
- an olefin maleic acid copolymer can be suitably used, and an ethylene-maleic acid copolymer (hereinafter abbreviated as "EMA") is particularly preferably used.
- EMA ethylene-maleic acid copolymer
- Can do This EMA can be obtained by copolymerizing maleic anhydride and ethylene by a known method such as solution radical polymerization.
- the maleic acid unit in the EMA becomes a maleic anhydride structure in which the adjacent carboxyl group is dehydrated and cyclized, and immediately opens when wet or in aqueous solution to form a maleic acid structure. Therefore, unless otherwise specified, maleic acid units and maleic anhydride units are collectively referred to as maleic acid units.
- the maleic acid unit in EMA is preferably 5 mol% or more, more preferably 10 mol% or more, more preferably 15 mol% or more, and most preferably 30 mol% or more.
- the weight average molecular weight of EMA is a force that is 1000-1000000 S, preferably 3000-500 000, a force S is more preferable, a force 7000-300000 S is more preferable, 10000- Especially preferred to be 200000! /.
- the above polycarboxylic acid polymers (B) can be used alone or in combination of two or more.
- a coating agent for forming a gas barrier layer (C) contains a crosslinking agent in order to promote the crosslinking reaction between the polyalcohol-based polymer (A) and the polycarboxylic acid-based polymer (B), thereby improving the gas nooriety. You can do it.
- the addition amount of the crosslinking agent is preferably 0.1 to 30 parts by mass, more preferably 1 to 20 parts per 100 parts by mass of the total mass of the polyalcohol polymer (A) and the polycarboxylic acid polymer (B). It is a quantity part.
- the addition amount of the cross-linking agent is less than 0.1 parts by mass, a significant cross-linking effect cannot be obtained even when the cross-linking agent is added, compared to the case where the cross-linking agent is not added.
- the cross-linking agent is not preferable because it may inhibit the expression of gas noriality.
- the crosslinking agent may be a crosslinking agent having self-crosslinking properties, a compound having a plurality of functional groups that react with a carboxyl group and Z or a hydroxyl group in the molecule, or a metal complex having a polyvalent coordination site.
- Etc. isocyanate compounds, melamine compounds, urea compounds, epoxy compounds, carpositimide compounds, zirconium salt compounds, and the like are preferable because they can exhibit excellent gas noriality.
- These cross-linking agents may be used in combination.
- a catalyst such as an acid can be added to the paint (C) in order to promote the cross-linking reaction and improve the gas noriability.
- the gas barrier layer-forming coating material (C) has a heat stabilizer, an antioxidant, a reinforcing material, a pigment, an anti-degradation agent, a weathering agent, a flame retardant, a plasticizer, as long as its properties are not significantly impaired. Agents, mold release agents, lubricants, etc. may be added.
- Examples of the heat stabilizer, antioxidant, and deterioration inhibitor include hindered phenols, phosphorus compounds, hindered amines, phenol compounds, copper compounds, alkali metal halides, or mixtures thereof. Can be mentioned.
- Examples of reinforcing materials include clay, talc, calcium carbonate, zinc carbonate, wollastonite, silica, alumina, magnesium oxide, calcium silicate, sodium aluminate, sodium aluminosilicate, magnesium silicate, glass balloon, carbon black, zinc oxide, Examples include zeolite, hydrated talcite, metal fiber, metal whisker, ceramic whisker, potassium titanate whisker, boron nitride, graphite, glass fiber, and carbon fiber.
- an inorganic layered compound can be added to the gas barrier layer-forming coating material (C) as long as the properties are not significantly impaired.
- the inorganic layered compound refers to an inorganic compound in which unit crystal layers overlap to form a layered structure.
- Specific examples include zirconium phosphate (phosphate derivative type compound), chalcogenide, lithium aluminum composite hydroxide, graphite, clay mineral and the like. In particular, those that swell and cleave in a solvent are preferred.
- Preferable clay minerals include, for example, montmorillonite, piderite, sabonite, hectorite, soconite, vermiculite, fluorite mica, muscovite, noragonite, phlogopite, biotite, levidrite, margarite, clintonite.
- Anandite chlorite, donbasite, sudoite, tatsukite, clinochlore, chamosite, nimite, tetrasilicite, talc, pyrophyllite, nacrite, kaolinite, halloysite, chrysotile, natrium muteolite, xanthophyllite, anti Examples include golite, datekite, and hyde talcite, with swellable fluoromica or montmorillonite being particularly preferred.
- clay minerals may be naturally occurring, artificially synthesized or modified, and those treated with an organic substance such as onium salt.
- the swellable fluoromica mineral is most preferred in terms of whiteness, as shown by the following formula (1), and can be easily synthesized.
- M represents sodium or lithium
- a swellable fluoromica-based mineral for example, silicon oxide and oxide Gnesium and various fluorides are mixed, and the mixture is completely melted in a temperature range of 140-1500 ° C in an electric furnace or gas furnace, and crystal growth of fluoromica-based minerals occurs in the reaction vessel during the cooling process. There is a so-called melting method.
- talc is used as a starting material and an alkali metal ion is intercalated therein to obtain a swellable fluoromica-based mineral
- Japanese Patent Laid-Open No. 2-149415 Japanese Patent Laid-Open No. 2-149415.
- a swellable fluorinated mica-based mineral by mixing talc with alkali silicofluoride or alkali fluoride and heating it in a magnetic crucible at a temperature of about 700-1200 ° C for a short time. it can.
- the amount of alkali silicofluoride or alkali fluoride mixed with talc is preferably in the range of 10 to 35% by mass of the entire mixture from the viewpoint of the yield of the swellable fluorine mica-based mineral. .
- the alkali metal of alkali silicofluoride or alkali fluoride must be sodium or lithium. These alkali metals may be used alone or in combination. Among the alkali metals, in the case of potassium alone, a swellable fluoromica-based mineral cannot be obtained even when used alone, but if used in combination with sodium or lithium and potassium is limited in amount, the swellability is reduced. It can also be used for adjustment purposes.
- the step of producing the swellable fluoromica-based mineral it is possible to adjust the swelling property of the swellable fluoromica-based mineral to be produced by blending a small amount of alumina.
- montmorillonite is represented by the following formula (2) and can be obtained by purifying a naturally occurring product.
- M represents a cation of sodium, and a is 0.25-0.60.
- the number of water molecules bound to the ion-exchangeable cation between layers depends on conditions such as cation species and humidity. In the following formula, it is expressed as nH 2 O.
- Montmorillonite also includes the same type of ion-substituted products of magnesia montmorillonite (3), iron montmorillonite (4), and iron magnesia montmorillonite (5) represented by the following formula groups (3) to (5): These may be used.
- M represents a cation of sodium, and a is 0.25 to 0.60.
- montmorillonite has the ability to have ion-exchangeable cations such as sodium and calcium between its layers.
- ion-exchangeable cations such as sodium and calcium between its layers.
- montmorillonite purified by water treatment it is preferable to use montmorillonite purified by water treatment.
- Such an inorganic layered composite can be used in the gas barrier layer-forming coating material (C) in combination with the above-mentioned crosslinking agent.
- the paint (C) which is an aqueous solution containing the polyalcohol polymer (A) and the polycarboxylic acid polymer (B)
- an alkali compound in an amount of 0.1 to 20 equivalent% with respect to the carboxyl group.
- the polycarboxylic acid polymer (B) has a high hydrophilicity when it contains a large amount of carboxylic acid units. Therefore, it can be made into an aqueous solution without adding an alkaline compound. By adding an appropriate amount of the material, the gas nore property of the film obtained by applying the gas barrier layer-forming paint (C) is remarkably improved.
- Alkali compounds that can neutralize the carboxyl group in the polycarboxylic acid polymer (B) may be any alkali metal or alkaline earth metal hydroxide, ammonium hydroxide, organic Examples thereof include hydroxyammonium compounds. Of these, alkali metal hydroxides are preferred.
- the aqueous solution may be prepared by a known method using a dissolution vessel equipped with a stirrer.
- a method in which the polyalcohol polymer (A) and the polycarboxylic acid polymer (B) are separately made into an aqueous solution and mixed before use is preferable.
- the stability of the aqueous solution can be improved.
- the polyalcohol-based polymer (A) and the polycarboxylic acid-based polymer (B) may be added to the water in the dissolution vessel at the same time, but it is better to add the alkaline compound to the water first. Solubility of acid polymer (B).
- the concentration of the gas barrier layer-forming coating material (C), that is, the solid content can be changed as appropriate depending on the specifications of the coating device and the drying / heating device.
- the gas barrier property is exhibited in an extremely dilute solution. It becomes difficult to form a sufficiently thick layer (II), and a problem that a long time is required in the subsequent drying process tends to occur.
- the concentration of the paint is too high, a problem is likely to occur in the paintability, which makes it difficult to obtain a uniform paint.
- the concentration (solid content) of the coating material (C) is preferably in the range of 5 to 50% by mass.
- the paint is applied to the plastic substrate (I) or the anchor coat formed on the substrate (I). Apply on layer.
- the coating method of the paint (C) is not particularly limited, and for example, usual methods such as gravure roll coating, reverse roll coating, wire bar coating, and air knife coating can be used.
- the anchor coat layer is used as necessary, is located between the plastic substrate (I) and the gas noble layer ( ⁇ ), and mainly plays a role in improving the adhesion of the gas barrier layer (II).
- the coating agent used for the anchor coat layer known ones can be used without any particular limitation.
- anchor coating agents such as isocyanate, polyurethane, polyester, polyethyleneimine, polybutadiene, polyolefin, and alkyl titanate.
- isocyanate-based, polyurethane-based, and polyester-based anchor coating agents are preferable.
- the coating agent can also be applied onto the substrate (I) in the same manner as the coating method for the paint (C).
- heat treatment may be performed immediately, and the formation of a dry film of the paint (C) and the heat treatment may be carried out simultaneously, or after application, hot air blowing or infrared rays may be applied.
- Heat treatment may be performed after moisture or the like is evaporated by irradiation or the like to form a dry film.
- the heat treatment method is not particularly limited, and the heat treatment generally considered to be performed in a dry atmosphere such as an oven may be performed by contacting with a hot roll, for example.
- the paint (C) is applied to the stretched base material (I) when forming the gas barrier layer (II) from the gas barrier layer-forming paint (C).
- the film may be stretched after the paint (C) is applied to the base material (I) before stretching.
- the plastic substrate (I) coated with the gas barrier layer-forming coating material (C) is subjected to a heat treatment for 1 minute or less in a heating atmosphere of 100 ° C or higher.
- the polyalcohol polymer (A) contained in the gas barrier layer-forming coating material (C) and the polystrengthen rubonic acid polymer (B) undergo a crosslinking reaction to form an ester bond.
- a water-insoluble gas barrier layer (soot) is formed.
- the heat treatment temperature is generally not limited to a temperature of 100 to 300 ° C, preferably S, more preferably 120 to 250 ° C, and more preferably 140 to 240 ° C. Further preferred is 160 to 220 ° C.
- the crosslinking reaction between the polyalcohol-based polymer (A) and the polycarboxylic acid-based polymer (B) cannot be sufficiently advanced, and a gas noria layer (II) having sufficient gas noria properties can be formed.
- a gas noria layer (II) having sufficient gas noria properties can be formed.
- it is too high there is a possibility that the coating film may become brittle.
- the heat treatment time is preferably 5 minutes or less. Usually, 1 second to 5 minutes, preferably 3 seconds to 2 minutes, more preferably 5 seconds to 1 minute is applied. If the heat treatment time is too short, The crosslinking reaction cannot proceed sufficiently, and it becomes difficult to obtain a gas barrier layer (II) having gas barrier properties. On the other hand, if it is too long, productivity is lowered.
- a cross-linked structure by an ester bond is formed between the polyalcohol-based polymer (A) and the polycarboxylic acid-based polymer (B) by the heat treatment for a relatively short time as described above, and the gas Layer (II) can be formed.
- the thickness of the formed gas barrier layer (II) is preferably in the range of 0.05 to 3 ⁇ m, more preferably in the range of 0.05 to 2 ⁇ m, and 0.08 to 1 ⁇ m. m range power ⁇ especially preferred! / ,. If the thickness of the gas barrier layer ( ⁇ ) is less than 0.05 ⁇ m, it becomes difficult to form a layer having a uniform thickness. On the other hand, if the thickness exceeds 3 m, the heat treatment time becomes longer and the productivity may be lowered.
- the resin layer (III) is a monovalent metal compound (D) or a resin composition containing a monovalent metal compound (D) and a divalent or higher metal compound (E) ( F) is a layer formed on the gas noble layer (II). That is, the resin coating (F) is characterized by containing at least a monovalent metal compound (D).
- This resin layer ( ⁇ ) can be preferably formed by applying heat treatment to the surface of the gas barrier layer ( ⁇ ) after applying the resin coating (F).
- the cross-linked structure produced by ## STR4 ## is not only an ionic bond and a covalent bond, but may also be a coordinate bond.
- Examples of the metal species used for the monovalent metal compound (D) include Li, Na, K, Rb, Se, etc. Among these, Li, Na, and K are preferable, and the atomic radius is the most, among them. Small Li is preferred.
- the form of the metal compound used includes a simple metal, and includes oxides, hydroxides, halides, inorganic salts such as carbonates and sulfates, and organic acid salts such as carboxylates and sulfonic acids. Of these, hydroxides and carbonates are preferable.
- Monovalent metal salts tend to penetrate into the gas barrier layer (II), which has a smaller atomic radius than divalent metal salts. For this reason, it is more preferable in that a sufficient effect can be obtained only by bringing the resin layer (III) containing this into contact with the gas barrier layer (II) for a relatively short time.
- Metal species of the bivalent or higher metal compound (E) used in combination with the monovalent metal compound (D) include Mg, Ca, Zn, Cu, Co, Fe, Ni, Al, Zr, and the like. Can be mentioned. Of these, Mg, Ca and Zn are preferred, and Mg and Ca are particularly preferred.
- the form of the metal compound to be used includes a single metal, and includes inorganic salts such as oxides, hydroxides, halides, carbonates and sulfates, and organic acid salts such as carboxylates and sulfonic acids. Of these, oxides, hydroxides and carbonates are preferred.
- the gas barrier properties superior to those when using a divalent or higher metal compound (E) alone are more efficient. It can be obtained by a simple and convenient method. This is because, when a divalent or higher metal compound (E) is used in combination with a monovalent metal salt, the monovalent metal compound (D) is more easily penetrated, so the carboxyl group in the gas barrier layer (II) And the ionic properties of the univalent metal take precedence and the hydrophilicity is improved. As a result, the divalent or higher valent metal compound (E) can easily penetrate into the gas barrier layer (II), and the gas noria effect is further enhanced. It is thought that it is because it is raised.
- These metal compounds can be used alone or in combination of two or more.
- a plurality of types (D) and a plurality of types (E) can be used.
- a metal compound that is in the form of fine particles as much as possible during mixing, preferably an average particle diameter of 10 m or less, more preferably 3 m or less, most preferably 1 ⁇ m or less.
- these metal compounds are contained in the resin layer, applied as a resin coating, and then heat-treated.
- the resin coating (F) is applied as a resin coating
- heat-treated it is possible to impart excellent gas barrier properties and transparency to the laminate more efficiently and easily than in the case where the metal compound is applied as an aqueous solution and heat-treated.
- a coating device with a conventional hot-air drying furnace simply applying the resin coating (F) to the base film with the gas nolia layer ( ⁇ ), and performing heat drying for a short time of less than 1 minute.
- a laminate (stacked film) having excellent gas barrier properties can be obtained.
- Examples of the resin constituting the resin coating (F) include various urethane resins, polyester resins, acrylic resins, epoxy resins, alkyd resins, melamine resins, amino resins, and the like. Fat. Of these, urethane resin, particularly preferred are urethane resin, polyester resin, and acrylic resin in view of water resistance, solvent resistance, heat resistance, and curing temperature. These coffins can be used alone or in admixture of two or more.
- Urethane resin is a polymer obtained, for example, by the reaction of a polyfunctional isocyanate and a hydroxyl group-containing compound, and specifically, tolylene diisocyanate, diphenylmethane isocyanate, polymethylene polyphenylene polyisocyanate.
- Aromatic polyisocyanates such as cyanate, or polyfunctional isocyanates such as aliphatic polyisocyanates such as hexamethylene diisocyanate and xylene isocyanate, polyether polyols, polyester polyols, polyacrylate polyols
- Urethane resin obtained by reaction with a hydroxyl group-containing compound such as polycarbonate polyol can be used.
- the compounding ratio of the metal compound ((D) or (D) and (E)) and the resin in the resin coating (F) varies greatly depending on the metal species used, the form of the compound, and the type of resin. From the viewpoint of gas barrier properties of the laminate and preparation of a uniform resin coating (F), it is preferable that the metal compound is 0.1 to LOO parts by mass with respect to 100 parts by mass of the resin solids 1 Most preferred is ⁇ 50 parts by weight.
- heat stabilizer examples include hindered phenols, phosphorus compounds, hindered amines, phenol compounds, copper compounds, alkali metal halides, or mixtures thereof. Can be mentioned.
- reinforcing materials include clay, talc, calcium carbonate, zinc carbonate, wollastonite, silica, alumina, magnesium oxide, calcium silicate, sodium aluminate, sodium aluminosilicate, magnesium silicate, glass balloon, carbon black, zinc oxide,
- examples include zeolite, hydrated talcite, metal fiber, metal whisker, ceramic whisker, potassium titanate whisker, boron nitride, graphite, glass fiber, and carbon fiber.
- a crosslinking agent is added to the paint (F). It can also be added.
- the addition amount of the crosslinking agent is preferably 0.1 to 300 parts by mass with respect to 100 parts by mass of the solid content of the resin contained in the resin coating 5 to 10 parts to 80 parts by mass of LOO more preferably Is even better.
- the addition amount of the crosslinking agent is less than 0.1 parts by mass, a significant crosslinking effect cannot be obtained even when the crosslinking agent is added, compared to the case where the crosslinking agent is not added.
- the cross-linking agent is not preferable because it may inhibit the expression of gas noriality.
- the crosslinking agent may be a crosslinking agent having a self-crosslinking property, a compound having a plurality of functional groups that react with a carboxyl group and Z or a hydroxyl group in the molecule, or a metal complex having a polyvalent coordination site.
- isocyanate compounds melamine compounds, urea compounds, epoxy compounds, and carpositimide compounds are preferred, with isocyanate compounds being particularly preferred.
- aromatic polyisocyanates such as tolylene diisocyanate, diphenylmethane isocyanate, polymethylene polyphenylene polyisocyanate, or hexamethylene diisocyanate.
- polyfunctional isocyanates such as aliphatic polyisocyanates such as xanthates and xylene isocyanates.
- the concentration (solid content) of the resin paint (F) can be changed as appropriate depending on the specifications of the coating apparatus and drying / heating apparatus. In an extremely dilute solution, the reaction with the gas noble layer (II) It becomes difficult to form a layer with sufficient thickness to exhibit gas barrier properties. The problem of requiring a long time in the drying process is likely to occur. On the other hand, if the concentration of the paint (F) is too high, a problem is likely to occur in the paintability, which makes it difficult to obtain a uniform paint. From such a viewpoint, the concentration (solid content) of the resin coating (F) is preferably in the range of 5 to 50% by mass.
- the resin coating (F) is applied on the formed gas barrier layer (IV), and then immediately heated.
- the formation of the dry film and the heat treatment may be performed simultaneously, or after the application, the heat treatment is performed after the moisture is evaporated by spraying hot air using a dryer or infrared irradiation to form a dry film. It's good.
- it is preferable to perform the heat treatment immediately after the coating unless the state of the gas barrier layer (II) and the resin layer (III) and physical properties such as gas barrier properties are particularly hindered.
- the heat treatment method is not particularly limited, and it is generally considered that the heat treatment is performed in a dry atmosphere such as an oven. For example, the heat treatment may be performed in contact with a hot roll.
- the thickness of the resin layer (III) formed on the gas barrier layer ( ⁇ ) is a force depending on the thickness of the gas barrier layer ( ⁇ ⁇ ). Therefore, it is desirable to make it thicker than 0.1 m.
- the thickness is preferably about 3 m or less, more preferably 0.1 to 2 111, and particularly preferably 0.15 to L 5 m.
- the method for applying the resin coating (F) is not particularly limited, and a usual method such as gravure roll coating, reverse roll coating, wire bar coating, air knife coating or the like can be used.
- the preferred heat treatment temperature for the formation of the resin layer (III) cannot be generally specified, but it is preferable to carry out at a temperature of 50 to 300 ° C. More preferred is 100 to 200 ° C. If the heat treatment temperature is too low, the effect of the metal compound in the resin coating (F) and the polyalcohol polymer (A) and polycarboxylic acid polymer (B) in the gas barrier layer (II) will be sufficient. It may not be possible to proceed, and it may be difficult to obtain a stacked body having sufficient gas barrier properties. On the other hand, if the heat treatment temperature is too high, This is not preferable because wrinkles due to shrinkage and brittleness of the film may occur.
- the heat treatment time is preferably 5 minutes or less from the viewpoint of productivity, and is usually 1 second to 5 minutes, preferably 3 seconds to 2 minutes, more preferably 5 seconds to 1 minute. If the heat treatment time is too short, the above action cannot be sufficiently advanced, and it becomes difficult to obtain a film having gas barrier properties.
- the laminate may be treated in a humidified atmosphere for the purpose of enhancing the gas noriality of the laminate. it can.
- Caro Wet treatment allows the metal compound ((D) or (D) and (E)) of the resin layer (III) and the polyalcohol polymer (A) and polycarboxylic acid polymer (II) of the gas barrier layer (II)
- the action with B) can be further promoted.
- the laminate may be left in an atmosphere of high temperature and high humidity, or the laminate may be directly contacted with high temperature water.
- Humidification treatment conditions vary depending on the purpose, but when left in a high-temperature and high-humidity atmosphere, a temperature of 30 to 130 ° C and a relative humidity of 50 to: LOO% are preferred. When contacting with high-temperature water, the temperature is preferably about 30 to 130 ° C (100 ° C or more under pressure). If the temperature is too low, the humidifying effect is not sufficient, and if the temperature is too high, the substrate may be thermally damaged, which is not preferable.
- the humidifying treatment time varies depending on the treatment conditions. In general, a range of several seconds, several hundred hours is selected.
- the gas barrier laminate may have another layer in addition to the essential layers (I) (II) and (III).
- the surface of the resin layer (III) (the surface opposite to the surface in contact with the gas barrier layer (II)) is a protective layer (IV) comprising another resin layer.
- (I) (II) (III) (IV) may be laminated in this order.
- the protective layer (IV) is effectively used for the purpose of preventing bleeding out of the metal salt having the strength of the resin layer (III) and blocking of the film.
- the protective layer (IV) a known resin group force such as polyurethane, polyester, and polyacrylic resin is selected, and a resin layer containing a selected resin is selected for adhesion to the resin layer (III). Good quality is desirable. Of these, a film made of polyurethane-based resin is particularly preferable.
- the glass transition point of the resin used is 30 ° C. or higher, preferably 70 ° C. or higher, more preferably 100 ° C. or higher.
- the protective layer (IV) may be cross-linked by a known cross-linking method depending on the purpose such as enhancing water resistance.
- a known cross-linking method a method using self-crosslinking by silanol bond or the like, or a plurality of groups that react with a functional group such as a carboxyl group and a hydroxyl group contained in the resin used in the protective layer (IV) are included in the molecule.
- a method of adding an individual compound is included.
- isocyanate compounds, melamine compounds, urea compounds, epoxy compounds, and carpositimide compounds are preferred, and isocyanate compounds are particularly preferred.
- aromatic polyisocyanates such as tolylene diisocyanate, diphenylenemethane isocyanate, polymethylene polyphenylene polyisocyanate, or hexamethylene diisocyanate, xylene isocyanate.
- polyfunctional isocyanates such as aliphatic polyisocyanates.
- Protective layer (IV) is a heat stabilizer and antioxidant as long as its properties are not significantly impaired.
- the gas barrier laminate may include a functional layer such as a primer layer or an antistatic layer on the resin layer (III).
- the gas- noble laminate according to the present invention can be applied to various fields that require oxygen gas-noreness.
- it can be preferably used as various packaging materials, and is particularly suitable for the food packaging field.
- the packaging material including the gas barrier laminate includes, for example, a heat-sealable resin layer (heat seal layer), an adhesive layer, a printed layer, and other necessary layers depending on the purpose of use. Can also be included.
- the oxygen gas noreality is determined by using oxygen barrier measuring device (OX-TRAN 2Z20) manufactured by Mocon and oxygen in an atmosphere at a temperature of 20 ° C and a relative humidity of 85%. The transmittance was measured and evaluated. From the measurement results of each oxygen permeability of the gas barrier laminate and the substrate, the oxygen permeability of the formation layer composed of the gas barrier layer (II) and the resin layer (III) was calculated by the following formula.
- OX-TRAN 2Z20 oxygen barrier measuring device manufactured by Mocon
- the PVA aqueous solution and the EMA aqueous solution were mixed so that the mass ratio of PVA to EMA was 40Z60 to obtain a mixed liquid (gas barrier layer forming coating material (C)) having a solid content of 10% by mass.
- Polyurethane resin A with a solid content of 20% by weight (Daiichi Kogyo Seiyaku Co., Ltd., Superflex 410) aqueous dispersion and 3% by weight lithium hydroxide aqueous solution (using a magnetic stirrer 10 (Made by stirring at Orpm for about 30 minutes) and mixed in an equal amount by mass ratio, and the final concentration was adjusted to 10% by weight of the solid content of the resin and 1.5% by weight of the lithium hydroxide (resin paint ( F)) was obtained.
- the above resin coating (F) was applied using a gravure roll type coater, dried and heat-treated in a 130 ° C hot air drying furnace for 30 seconds to obtain a thickness of 0.
- An 8 ⁇ m rosin layer (III) was formed to obtain a laminate (cass barrier laminate).
- a laminate was obtained in the same manner as in Example 1 except that the lithium hydroxide concentration in the resin coating (F) was changed to 0.75% by mass.
- a laminate was obtained in the same manner as in Example 1 except that the monovalent metal compound (D) contained in the resin coating (F) was changed to sodium hydroxide.
- a laminate was obtained in the same manner as in Example 2 except that the monovalent metal compound (D) contained in the resin coating (F) was changed to sodium hydroxide.
- a laminate was obtained in the same manner as in Example 1 except that the monovalent metal compound (D) contained in the resin coating (F) was changed to potassium hydroxide.
- a laminate was obtained in the same manner as in Example 2 except that the monovalent metal compound (D) contained in the resin coating (F) was changed to potassium hydroxide.
- Lithium hydroxide is used as the monovalent metal compound (D) contained in the resin coating (F), and calcium carbonate is used as the divalent or higher metal compound (E).
- the lithium hydroxide concentration is 1.5 mass. %, Except that the calcium carbonate concentration was changed to 1.5% by mass. A layered body was obtained.
- a laminate was obtained in the same manner as in Example 7 except that the divalent or higher valent metal compound (E) contained in the resin coating (F) was changed to magnesium carbonate.
- a laminate was obtained in the same manner as in Example 7 except that the divalent or higher valent metal compound (E) contained in the resin coating (F) was changed to zinc oxide.
- a laminate was obtained in the same manner as in Example 10, except that the lithium hydroxide concentration in the resin coating (F) was changed to 0.75% by mass.
- Lithium hydroxide is used as the monovalent metal compound (D) contained in the resin coating (F), and magnesium carbonate is used as the bivalent or higher metal compound ( ⁇ ).
- a laminate was obtained in the same manner as in Example 10 except that the amount was changed to 1.5% by mass and the magnesium carbonate concentration was changed to 1.5% by mass.
- a laminate was obtained in the same manner as in Example 1 except that the resin component of the resin coating (F) was changed to urethane resin and ester resin (Eunitel KA5071S).
- Example 15 A laminate was obtained in the same manner as in Example 13 except that the lithium hydroxide concentration in the resin coating (F) was changed to 0.75% by mass.
- a laminate was obtained in the same manner as in Example 10 except that the resin component of the resin composition (F) was changed from urethane resin B to ester resin B (Eneltel UE9820, manufactured by Unitica Co., Ltd.).
- a laminate was obtained in the same manner as in Example 15 except that the lithium hydroxide concentration in the resin coating (F) was changed to 0.75% by mass.
- a laminate was obtained in the same manner as in Example 1 except that the resin component of the resin composition (F) was changed to urethane resin A force with acrylic resin (John Crill 711, manufactured by Johnson Polymer Co., Ltd.).
- a laminate was obtained in the same manner as in Example 2 except that the resin component of the resin composition (F) was changed to urethane resin A force with an acrylic resin (John Crill 711, manufactured by Johnson Polymer Co., Ltd.).
- a laminate was obtained in the same manner as in Example 1 except that the mass ratio of the PVA aqueous solution and the EMA aqueous solution of the gas barrier layer-forming coating material (C) was changed to 30Z70.
- a laminate was obtained in the same manner as in Example 2 except that the mass ratio of the PVA aqueous solution and the EMA aqueous solution of the gas barrier layer-forming coating material (C) was changed to 30Z70.
- a laminate was obtained in the same manner as in Example 8 except that the mass ratio of the PVA aqueous solution and the EMA aqueous solution of the gas barrier layer-forming coating material (C) was changed to 30Z70.
- a laminate was obtained in the same manner as in Example 10 except that the mass ratio of the PVA aqueous solution and the EMA aqueous solution of the gas barrier layer-forming paint (C) was changed to 30Z70.
- a laminate was obtained in the same manner as in Example 22 except that the lithium hydroxide concentration in the resin coating (F) was changed to 0.75% by mass.
- Example 24 Lithium hydroxide is used as the monovalent metal compound (D) contained in the resin coating (F), and magnesium carbonate is used as the bivalent or higher metal compound (E).
- a laminate was obtained in the same manner as in Example 22 except that the amount was changed to 1.5% by mass and the magnesium carbonate concentration was changed to 1.5% by mass.
- a laminate was obtained in the same manner as in Example 1 except that the metal compound was not added to the resin coating (F).
- a laminate was obtained in the same manner as in Example 1 except that 1.5% by mass of a lithium hydroxide aqueous solution containing no resin component was used instead of the resin composition (F). A solid precipitate of lithium hydroxide was observed on the surface of the obtained laminate, and there was a problem in appearance.
- a laminate was obtained in the same manner as in Example 1 except that the metal compound mixed in the resin coating (F) was changed to 1.5% by mass of magnesium oxide. In the obtained laminate, aggregates of magnesium oxide were observed and there was a problem in appearance.
- a laminate was obtained in the same manner as in Comparative Example 1 except that the mass ratio of the PVA aqueous solution and the EMA aqueous solution of the gas barrier layer-forming paint (C) was changed to 30Z70.
- the gas barrier laminates obtained in the above examples had no misalignment, good gas barrier properties, were transparent, and had a good appearance.
- Comparative Examples 13 and 4 did not contain a monovalent metal compound (D) in the resin layer (III), so that sufficient gas barrier properties were not obtained.
- the monovalent metal compound (D) is contained in the resin layer (III).
- the appearance of the divalent metal compound (E) to the gas barrier layer (II) permeated slowly was poor.
- the gas barrier property was good because the monovalent metal compound (D) was applied, but the appearance was poor because it was not applied as the resin layer (III) containing the resin. I'm sorry.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/088,092 US20100151265A1 (en) | 2005-09-26 | 2006-09-25 | Gas barrier laminate |
EP20060810516 EP1930153B1 (en) | 2005-09-26 | 2006-09-25 | Gas barrier laminate |
CN2006800354423A CN101272906B (zh) | 2005-09-26 | 2006-09-25 | 阻气性层叠体 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-277924 | 2005-09-26 | ||
JP2005277924 | 2005-09-26 | ||
JP2006-211066 | 2006-08-02 | ||
JP2006211066A JP5081415B2 (ja) | 2005-09-26 | 2006-08-02 | ガスバリア性積層体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007034940A1 true WO2007034940A1 (ja) | 2007-03-29 |
Family
ID=37888982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/318948 WO2007034940A1 (ja) | 2005-09-26 | 2006-09-25 | ガスバリア性積層体 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20100151265A1 (ja) |
EP (1) | EP1930153B1 (ja) |
JP (1) | JP5081415B2 (ja) |
KR (1) | KR20080063788A (ja) |
CN (1) | CN101272906B (ja) |
TW (1) | TWI406764B (ja) |
WO (1) | WO2007034940A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008297527A (ja) * | 2007-06-04 | 2008-12-11 | Sakata Corp | ラミネート用バリア性コーティング組成物及びラミネート用バリア性複合フィルム |
JP2009029837A (ja) * | 2007-07-24 | 2009-02-12 | Sakata Corp | ガスバリヤ性コーティング組成物 |
US20100266825A1 (en) * | 2007-12-24 | 2010-10-21 | Choongwae Corporation | High barrier multilayer film for functional medical solution product |
WO2014034627A1 (ja) * | 2012-08-28 | 2014-03-06 | ユニチカ株式会社 | ガスバリア性積層体、それを有するガスバリア性複合体、およびそれらを含む包装体 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI1012329B1 (pt) * | 2009-03-25 | 2019-10-29 | Unitika Ltd | película de poliamida de fácil adesão, seus métodos de produção, e laminado |
EP2501765B1 (en) * | 2009-11-20 | 2016-02-10 | Sun Chemical B.V. | Gas barrier coatings |
JP6030341B2 (ja) * | 2012-05-18 | 2016-11-24 | ユニチカ株式会社 | コーティング組成物、塗膜及び積層体 |
EA201690475A1 (ru) | 2013-08-26 | 2016-06-30 | Ред Лиф Рисорсиз, Инк. | Композитный барьер от переноса газа |
WO2017069143A1 (ja) * | 2015-10-20 | 2017-04-27 | 凸版印刷株式会社 | コーティング液およびガスバリア性積層体 |
JP2016194078A (ja) * | 2016-05-30 | 2016-11-17 | ユニチカ株式会社 | コーティング組成物、塗膜及び積層体 |
CN113646387A (zh) * | 2019-04-01 | 2021-11-12 | Dic株式会社 | 阻气性组合物、涂布剂及层叠体 |
JP7259623B2 (ja) * | 2019-07-29 | 2023-04-18 | 凸版印刷株式会社 | ガスバリア積層体及びこれを用いた包装材 |
JP2021102700A (ja) * | 2019-12-25 | 2021-07-15 | Dic株式会社 | コーティング剤、積層体、成型体及び包装材 |
TW202330271A (zh) * | 2021-12-07 | 2023-08-01 | 日商Dic股份有限公司 | 氣體阻隔膜、及包裝材料 |
JP7272520B1 (ja) * | 2021-12-07 | 2023-05-12 | Dic株式会社 | ガスバリアフィルム、および包装材料 |
WO2024101165A1 (ja) * | 2022-11-10 | 2024-05-16 | Dic株式会社 | ガスバリア用組成物、コーティング剤および積層体 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000000931A (ja) * | 1998-04-15 | 2000-01-07 | Kureha Chem Ind Co Ltd | ガスバリヤ性フィルム |
US20030124365A1 (en) | 2001-11-14 | 2003-07-03 | Robert Posey | Oxygen barrier coating and coated film |
JP2004136281A (ja) | 2002-09-27 | 2004-05-13 | Toyo Ink Mfg Co Ltd | ガスバリア性積層体の製造方法 |
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 |
JP2004322625A (ja) | 2003-04-11 | 2004-11-18 | Toyo Ink Mfg Co Ltd | ガスバリア性積層体の製造方法 |
EP1548074A1 (en) | 2002-09-27 | 2005-06-29 | Toyo Ink Mfg. Co., Ltd. | Gas barrier coating material and gas barrier laminates made by using the same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL140542A0 (en) * | 2000-12-25 | 2002-02-10 | Syfan Saad 99 Ltd | Improved multilayer barrier polymeric films |
-
2006
- 2006-08-02 JP JP2006211066A patent/JP5081415B2/ja active Active
- 2006-09-25 KR KR1020087010078A patent/KR20080063788A/ko active Search and Examination
- 2006-09-25 CN CN2006800354423A patent/CN101272906B/zh not_active Expired - Fee Related
- 2006-09-25 US US12/088,092 patent/US20100151265A1/en not_active Abandoned
- 2006-09-25 EP EP20060810516 patent/EP1930153B1/en not_active Not-in-force
- 2006-09-25 WO PCT/JP2006/318948 patent/WO2007034940A1/ja active Application Filing
- 2006-09-26 TW TW95135483A patent/TWI406764B/zh not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000000931A (ja) * | 1998-04-15 | 2000-01-07 | Kureha Chem Ind Co Ltd | ガスバリヤ性フィルム |
EP1086981A1 (en) | 1998-04-15 | 2001-03-28 | Kureha Chemical Industry Co., Ltd. | Gas-barrier films |
US20030124365A1 (en) | 2001-11-14 | 2003-07-03 | Robert Posey | Oxygen barrier coating and coated film |
JP2004136281A (ja) | 2002-09-27 | 2004-05-13 | Toyo Ink Mfg Co Ltd | ガスバリア性積層体の製造方法 |
EP1548074A1 (en) | 2002-09-27 | 2005-06-29 | Toyo Ink Mfg. Co., Ltd. | Gas barrier coating material and gas barrier laminates made by using 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 |
JP2004322625A (ja) | 2003-04-11 | 2004-11-18 | Toyo Ink Mfg Co Ltd | ガスバリア性積層体の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1930153A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008297527A (ja) * | 2007-06-04 | 2008-12-11 | Sakata Corp | ラミネート用バリア性コーティング組成物及びラミネート用バリア性複合フィルム |
JP2009029837A (ja) * | 2007-07-24 | 2009-02-12 | Sakata Corp | ガスバリヤ性コーティング組成物 |
US20100266825A1 (en) * | 2007-12-24 | 2010-10-21 | Choongwae Corporation | High barrier multilayer film for functional medical solution product |
US8349440B2 (en) * | 2007-12-24 | 2013-01-08 | Choongwae Corporation | High barrier multilayer film for functional medical solution product |
WO2014034627A1 (ja) * | 2012-08-28 | 2014-03-06 | ユニチカ株式会社 | ガスバリア性積層体、それを有するガスバリア性複合体、およびそれらを含む包装体 |
JPWO2014034627A1 (ja) * | 2012-08-28 | 2016-08-08 | ユニチカ株式会社 | ガスバリア性積層体、それを有するガスバリア性複合体、およびそれらを含む包装体 |
Also Published As
Publication number | Publication date |
---|---|
KR20080063788A (ko) | 2008-07-07 |
CN101272906B (zh) | 2012-03-21 |
JP5081415B2 (ja) | 2012-11-28 |
US20100151265A1 (en) | 2010-06-17 |
EP1930153A1 (en) | 2008-06-11 |
EP1930153B1 (en) | 2012-09-12 |
TW200728072A (en) | 2007-08-01 |
TWI406764B (zh) | 2013-09-01 |
CN101272906A (zh) | 2008-09-24 |
EP1930153A4 (en) | 2009-02-11 |
JP2007112114A (ja) | 2007-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5081415B2 (ja) | ガスバリア性積層体 | |
TWI410325B (zh) | 氣體阻障性積層體 | |
JP5081417B2 (ja) | ガスバリア性積層体および積層物 | |
US8247068B2 (en) | Coating material for forming gas-barrier layer and gas-barrier multilayer body | |
JP2006219518A (ja) | ガスバリア性塗料及び該塗料を用いてなるガスバリア性積層体 | |
JP4225158B2 (ja) | ガスバリア性積層体の製造方法 | |
JP5155535B2 (ja) | ガスバリア性コート剤およびフィルム | |
JP4114585B2 (ja) | ガスバリア性積層体の製造方法 | |
JP4254453B2 (ja) | ガスバリア性塗料及び該塗料を用いてなるガスバリア性積層体 | |
JP2004115776A (ja) | ガスバリア性塗料 | |
JP4836322B2 (ja) | ガスバリア性コート剤、組成物および積層フィルム | |
JP4351099B2 (ja) | ガスバリア性積層体の製造方法 | |
JP4621435B2 (ja) | ガスバリア性塗料及び該塗料を用いてなるガスバリア性積層体 | |
JP4388840B2 (ja) | ガスバリア性積層体の製造方法 | |
JP2004323592A (ja) | ガスバリア性積層体(1)、及び該ガスバリア性積層体(1)を用いてなるガスバリア性積層体(2)の製造方法 | |
JP2005270907A (ja) | ガスバリア性積層体の製造方法 | |
JP2004307731A (ja) | ガスバリア性塗料 | |
JP4349033B2 (ja) | ガスバリア性積層体の製造方法 | |
JP2004306534A (ja) | ガスバリア性積層体の製造方法 | |
JP2005139325A (ja) | ガスバリア性塗料及び該塗料を用いてなるガスバリア性積層体 | |
JP2006341531A (ja) | ガスバリア性積層体の製造方法 | |
JP2005139324A (ja) | ガスバリア性塗料及び該塗料を用いてなるガスバリア性積層体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680035442.3 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 12088092 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006810516 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2062/CHENP/2008 Country of ref document: IN Ref document number: 1020087010078 Country of ref document: KR |