WO2004022485A1 - 無機層状化合物分散液、その製造方法及びその用途 - Google Patents
無機層状化合物分散液、その製造方法及びその用途 Download PDFInfo
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- WO2004022485A1 WO2004022485A1 PCT/JP2003/010395 JP0310395W WO2004022485A1 WO 2004022485 A1 WO2004022485 A1 WO 2004022485A1 JP 0310395 W JP0310395 W JP 0310395W WO 2004022485 A1 WO2004022485 A1 WO 2004022485A1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
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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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
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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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
- C09D123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
-
- 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
- C09D129/00—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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
-
- 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
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
- C08L23/0861—Saponified vinylacetate
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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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
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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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
Definitions
- the present invention provides an inorganic layered compound dispersion liquid in which an inorganic layered compound is dispersed in a thinner state, a gas-barrier coating agent composition having high gas-barrier properties and transparency obtained using the same, and
- the present invention relates to a coated gas barrier packaging container.
- inorganic layered compounds have been cleaved into thin films or plates, and evenly distributed in the system (in the present invention, this inorganic layered compound is cleaved).
- the term “dispersion” is used to refer to the dispersion and the uniform distribution in the system.) This is used for controlling fluidity, adding corrosion resistance, gas barrier, and other functions.
- the gas barrier coating agent is a gas barrier resin such as polyvinyl alcohol-polyethylene-vinyl alcohol, and absorbs water and the like to form a thin film or plate by swelling and cleavage.
- the gas-barrier function is enhanced by using an inorganic layered compound of the clay minerals of the orinite group and the smectite group to form a composite layer of both.
- the inorganic layered compound can be dispersed in a state where it is completely cleaved into one layer, the highest gas barrier property can be obtained.
- a method of dispersing an inorganic layered compound by mechanical stress using a high-speed stirrer or a high-pressure dispersion device has been used.
- the mechanical stress cannot sufficiently disperse the inorganic stratiform compound, so that not only the gas barrier property is insufficient, but also the obtained film becomes opaque. Therefore, even if an inorganic layered compound is used, if the gas barrier layer is formed as a thin film, sufficient gas barrier properties cannot be obtained.
- a packaging container made of various plastic materials has been used for a simple bag because of its excellent characteristics such as strength, heat resistance, transparency, and moldability. It has been processed and formed into various shapes, from slabs to complex nipples and pottles. The contents to be packaged are also diversified, and recently, liquid foods such as drinking water and seasonings are sold in plastic bottles and other plastic containers.
- plastic containers and paper containers are being replaced by containers such as liquid foods, which used to be metal cans and glass bottles, but these materials are more basic than metal glass. It has the disadvantage that the ability to block gases such as oxygen and water vapor (gas barrier properties) is low. Therefore, packaging containers made of these materials are liable to deteriorate or decompose due to oxidation or moisture absorption.In addition, when the contents are carbonated beverages, there are problems such as loss of carbon dioxide gas and lack of refreshment. Easy to invite.
- An object of the present invention is to solve the above-mentioned problems.
- An inorganic layered compound capable of imparting high corrosion resistance and gas barrier properties when used in a paint or a gas barrier coating agent by cleaving an inorganic layered compound into a thinner layer.
- the purpose is to provide a dispersion.
- a gas barrier coating agent composition that can obtain a film having gas barrier properties, and can obtain a film having good transparency and high gas barrier properties even when the film thickness is increased. It is to be. It is still another object of the present invention to provide a plastic and paper gas barrier packaging container having high gas barrier performance and obtained by applying such a gas barrier coating composition.
- Inorganic layered compounds are used in the fields of paints and functional coatings.For example, when applied to a gas barrier coating, the inorganic layered compound is cleaved as much as possible, resulting in a resin-inorganic compound composite layer. It is known that it is necessary to lengthen the permeation path of gas in the interior (maze effect).
- the inorganic layered compound swells in the dispersing medium and cleaves without applying external force as it is, but it takes a long time to cleave into a thin film and the degree of cleavage is limited . Therefore, conventionally, a method has been used in which an inorganic layered compound is added and mixed in a dispersion medium and then mechanical cleavage is applied by using a high-speed stirring device or a high-pressure dispersion device to promote cleavage.
- inorganic layered compounds are clay-based minerals that are produced as natural resources, and thus contain impurities of organic compounds, which are factors that hinder cleavage.
- the inorganic layered compound is cleaved in a thin film form and near the primary particles without forcibly applying mechanical force by decomposing impurities of the organic compound using a peroxide. I found that I can do it.
- the present invention relates to (1) an inorganic layered compound dispersion obtained by dispersing an inorganic layered compound (b) in a dispersion medium using a peroxide (a).
- the present invention relates to the inorganic layered compound dispersion according to (1), wherein the liquid is subjected to a dispersion treatment using a high-speed stirring device and / or a high-pressure dispersion device.
- the present invention provides (3) using hydrogen peroxide as the above-mentioned peroxide (a) (
- the present invention relates to a method for producing an inorganic layered compound dispersion in which the mixture is further processed by a high-speed discriminator and / or a high-pressure dispersing device, and the cleaved inorganic layered compound (b) is distributed in a dispersion medium.
- the present invention relates to (5) a gas barrier coating composition
- a gas barrier coating composition comprising the inorganic layered compound dispersion (c) according to any one of the above (1) to (3) and a gas barrier resin (d).
- the present invention provides (6) a gas barrier coating agent composition containing 1 to 30% by mass in total of an inorganic layered compound dispersion (c) and a gas barrier resin (d), and (c) / ( The mass ratio of d) is from 30/70 to 70/30, and relates to the gas-barrier coating composition according to (5).
- the present invention also provides (7) the gas barrier according to (5) or (6), wherein the gas barrier resin (d) contains at least one selected from a polyvinyl alcohol-based resin and an ethylene-vinyl alcohol-based resin.
- the present invention relates to an aqueous coating composition.
- the present invention provides (8) at least one of the surfaces of one kind of plastic film or sheet selected from the group consisting of polyolefin, polyester, polyamide and polystyrene, wherein any one of (5) to (7)
- the present invention relates to a gas-barrier composite plastic film or sheet obtained by applying the gas-barrier coating composition according to any one of the above, in an amount such that the film thickness as a dry film is 0.1 to 100 ⁇ m.
- the present invention also relates to (9) a gas barrier packaging container obtained by molding the gas barrier composite plastic film described in (8).
- the present invention also relates to (10) a gas barrier packaging container obtained by molding the gas barrier composite plastic sheet according to (8).
- the present invention also provides (11) a gas barrier coating according to any one of (5) to (7), wherein the plastic container is formed into a tube, tray, cup, box, or bottle shape.
- the present invention relates to a gas-barrier packaging container obtained by applying an agent composition in such an amount that the dry film thickness becomes 0.1 to 100 ⁇ m.
- the present invention also provides (12) a detailed disclosure of a gas barrier packaging container formed by a composite layer of a paper and a gasparous composite plastic film or sheet according to (8).
- the present invention provides an inorganic layered compound dispersion (c) obtained by dispersing an inorganic layered compound (b) in a dispersion medium using a peroxide (a).
- examples of each material include the following. Available.
- Examples of the peroxide (a) include the following.
- M 2 0 2 type M: N a, K, NH 4, Rb, C s, Ag, L i , etc.
- R—O—O—R type (R represents an alkyl group; the same applies hereinafter.): Dialkyl peroxides such as methyl peroxide.
- R—CO—0— ⁇ —CO—R type diacetyl, peroxide, dibenzyl peroxide, etc.
- hydrogen peroxide is suitable because it can be easily decomposed and treated later using a reducing agent, a reducing enzyme, or a catalyst.
- a reducing agent such as a reducing enzyme, or a catalyst.
- a material that generates hydrogen peroxide in water such as 3) and 7).
- an inorganic layered compound which swells and cleaves in a dispersing medium can be used, and the kaolinite group having a 1: 1 structure of phylloate, the antigolite group belonging to the jammonite group, and the interlayer Depending on the number of cations, the smectite group, the vermiculite group, which is a hydrous silicate mineral, and the myriki group can be exemplified.
- the dispersion medium either an aqueous dispersion medium or an organic dispersion medium can be used.
- aqueous dispersion medium even if only water is used, water and alcohols such as methanol, ethanol, and propanol, ethylene glycol,
- the dispersion medium may be a mixture of a polyhydric alcohol such as propylene glycol and an alkyl ether derivative thereof, and a water-miscible organic solvent such as esters such as ethyl formate, methyl acetate and ethyl acetate, and ketones such as acetone. .
- the above-mentioned water-miscible solvent is preferably used as the dispersion medium, or a mixture of these water-miscible solvents can be used.
- these dispersing media those that are suitable for each application can be appropriately selected and used. However, when it is used for a gas barrier coating composition, it is desirable to use an aqueous medium as far as possible within a range in which the solubility of the gas barrier resin can be obtained. A method for dispersing an inorganic layered compound in a dispersion medium using these materials is described below.
- the inorganic stratiform compound is dispersed using a dispersing device such as an ultrasonic dispersing device, a high-speed stirring device, or a high-pressure dispersing device.
- a dispersing device such as an ultrasonic dispersing device, a high-speed stirring device, or a high-pressure dispersing device.
- B) is dissociated, and is further subjected to a dispersion treatment for uniformly distributing in a dispersion medium.
- the amount of the peroxide (a) and the inorganic layered compound (b) used is determined by the quality of the peroxide (a) and the inorganic layered compound (b). It is preferable that the mass ratio ( a ) / (b) force 2Z1 ⁇ ; LZl 000, and in particular, the mass ratio between the peroxide (a) and the inorganic layered compound (b) be 1Z1-5Z1000. preferable.
- the dispersing device examples include an ultrasonic homogenizer, a high-speed mixer, a high-speed stirring device such as a rotary blade-type homogenizer and a disperser, a Gorin (manufactured by APV Gorin), a Nanomizer-1 (manufactured by Nanomizer-1), a microfluidizer (Micro High-pressure dispersing devices such as Fly Dettas Co., Ltd., Ultimateizer (Sugino Machine Co.), and De Bee (Bee Co.) can be used. All high pressure dispersion devices are trade names.
- the dispersion treatment in order to obtain a transparent and stable dispersion of the inorganic layered compound, it is preferable to carry out the dispersion treatment using the above high-pressure dispersion device under a pressure condition of 15 OMPa or less.
- the reason why the pressure condition is set to 15 OMPa or less is that if the pressure condition is exceeded, the inorganic layered compound (b) tends to be crushed.
- the dispersion by the dispersion device or the like is performed a plurality of times as necessary.
- the inorganic layered compound dispersion (c) obtained from the above materials and the dispersion method has very high transparency because the inorganic layered compound (b) is uniformly distributed in a thin film state in the system. And (c) an inorganic layered compound dispersion capable of imparting a good gas barrier function.
- the method for producing such an inorganic layered compound dispersion (c) is also one aspect of the present invention.
- a gas barrier coating composition utilizing the present invention is a gas barrier coating composition comprising the inorganic layered compound dispersion (c) and a gas barrier resin (d) exemplified below.
- a solvent that dissolves the gas barrier resin is used. Is preferable, and may further contain other additives.
- gas barrier resin (d) examples include a highly crystalline resin such as a polyester alcohol resin, an ethylene-vinyl alcohol copolymer resin (an ethylene-vinyl alcohol resin), a polyacrylotrile resin, One or more selected from gas barrier resins such as polyamide resins, polyester resins, polyurethane resins, and polyacrylic resins can be used.
- a highly crystalline resin such as a polyester alcohol resin, an ethylene-vinyl alcohol copolymer resin (an ethylene-vinyl alcohol resin), a polyacrylotrile resin
- gas barrier resins such as polyamide resins, polyester resins, polyurethane resins, and polyacrylic resins can be used.
- the oxygen permeability of the resin at a film thickness of 10 / zm is preferably 100 (cm 3 / m 2 ⁇ day ⁇ kPa) or less at room temperature.
- the oxygen permeability at a film thickness of 10 ⁇ of the resin is 100 (cm 3 Zm 2 ⁇ day ⁇ kPa) or less at room temperature” is defined as the oxygen permeability according to the JIS K7126B method. 23 ° C, 0% RH using a rate measuring device (product name “OX_TRAN 100”, manufactured by Mocon)
- a polybutyl alcohol-based resin having a hydroxyl group and an ethylene-vinyl alcohol-based resin are preferred in that they have excellent gas barrier properties, and the ethylene-butyl alcohol-based resin has a gas barrier property even under high humidity. It is more preferable in that the drop is small.
- a solvent that dissolves the gas barrier resin (d) there is no particular limitation as long as it is a solvent that dissolves the gas barrier resin (d). From the viewpoint of coating suitability and environmental friendliness, considering the combination with the gas barrier resin (d), water, alcohol, etc. An organic solvent such as a system solvent, an ester solvent, and a ketone solvent, or a mixture thereof is preferable. In particular, a polyvinyl alcohol resin or ethylene-vinyl alcohol resin is used as the gas barrier resin (d). In this case, it is preferable to use a mixed solvent of water and alcohol after adjusting these resins to an appropriate hydroxyl group content and molecular weight.
- Additives such as leveling agents, antifoaming agents, antiblocking agents such as wax and silica, release agents such as metal soaps and amides, ultraviolet absorbers, antistatic agents, etc. Can be added as needed.
- each material of the coating composition of the present invention is not particularly limited, and it is sufficient that the inorganic layered compound (b) is cleaved by the peroxide (a) as a result. That is, the inorganic layered compound (b) and the peroxide (a) are mixed in a dispersion medium first, and the resin is dissolved in a solvent in which the inorganic layered compound (b) is cleaved by the above-described method and a solvent. A resin solution, a mixture of a resin, an inorganic layered compound (b) and a peroxide (a) simultaneously in a solvent, by means of cleaving the inorganic layered compound (b). And the like.
- the gas barrier coating composition obtained from the present invention contains 1 to 30% by mass in total of the inorganic layered compound dispersion (c) and the gas barrier resin (d) in the gas barrier coating composition.
- the mass ratio of the layered compound dispersion (c) / gas barrier resin (d) is preferably 30Z70-70 / 30.
- the gas barrier coating agent composition essentially contains the inorganic layered compound dispersion (c) and the gas barrier resin (d), and may contain other components. Is composed of (c) and (d). Is preferred, whereby the functions of (c) and (d) can be more sufficiently exerted.
- the intended use of the packaging container obtained by the present invention is a packaging container having various shapes for packaging foods and pharmaceuticals, and depending on the material used as the base material, plastic gas barrier packaging is used.
- Containers and paper gas-barrier packaging containers can be broadly classified.
- the material used as the base material of the plastic gas barrier packaging container is not particularly limited as long as it is a thermoplastic resin or the like which is generally used in packaging containers and has a container forming ability.
- Low-density, high-density ethylene-propylene copolymer, polypropylene, ethylene-vinyl acetate copolymer, ethylene-methyl methacrylate copolymer, ionomer resin, and other polyolefins or olefins and other monomers.
- Polyester resins such as polyethylene terephthalate, polyethylene terephthalate, and polyethylene naphthalate; polyamide resins such as Nylon-16, Nylon-1,6,6, polycondensate of metaxylenediamine-adipic acid, and polymethylmethacrylimide Resin; A such as polymethyl methacrylate Kuryl-based resins; Hydrophobized celluloses such as cellulose acetate and cellulose diacetate; Polystyrene such as polystyrene, styrene-acrylonitrile copolymer, styrene-acrylonitrile-butadiene copolymer, and styrene and acrylonitrile Copolymer resin; polyacrylonitrile tri resin, polybutyl alcohol resin, ethylene-butyl alcohol copolymer, cellulose derivative, polycarbonate resin, polysulfone resin, polyether sulfone resin, polyether ether ketone resin, polyphenylene oxide resin And other various
- the plastic substrate on which the gas barrier coating agent composition obtained from the present invention is applied may be in the form of a film / sheet before being formed into a container, or may be formed into a final container shape. May be done. Further, a single layer may be formed, or a composite layer may be formed.
- the gas barrier coating composition can be easily formed instead of being formed into a very complicated shape. It has the advantage that it can be applied to the surface and that decoration such as printing can be performed at the same time.
- the difference between a film and a sheet is that in Japanese Industrial Standards (JISZ 0108) “Packaging Term”, “Plastic Film” is a plastic film with a thickness of less than 0.25 mm.
- the “plastic sheet” is defined as a thin plastic sheet having a thickness of 0.25 mm or more, and the same applies to the present invention.
- a method for producing a gas barrier packaging container using such a plastic film or sheet first, at least one of the surfaces of these substrates is coated with the gas barrier coating composition obtained from the present invention. To obtain a composite plastic film or sheet having a gas barrier layer.
- the gas-barrier composite plastic film or sheet thus obtained is one of the present invention, and it is preferable that one of the gas-barrier packaging containers described below is obtained by molding it. .
- various anchor coats such as isocyanate-based and imine-based An agent or an adhesive may be applied beforehand, or a print ink or the like may be printed for decoration.
- the gas barrier coating composition, anchor coating agent and adhesive are applied by roll coating such as flexo gravure, bar coating, rod coating, doctor knife coating, air knife coating, etc. , A spray coating method, a dive method and the like.
- the printing method of the printing ink can be appropriately selected from known printing methods.
- a desired bag-like packaging container is usually prepared by laminating a heat-fusible polymer on the plastic film to form a composite film, and joining the heat-fusible polymer surfaces together and heat-sealing the ends. It can be processed to the shape of.
- a hot-melt polymer such as polyethylene, polypropylene, or ethylene-vinyl acetate copolymer resin is applied to the surface of the plastic film on which the gas barrier layer is provided or on the opposite surface.
- a method of laminating by pressing in a molten state to form a thin film a method of bonding the above-mentioned heat-fusible polymer film via an adhesive; a method of dissolving a hot-melt type adhesive in a solvent or the like and coating. Available.
- a gas-barrier composite plastic film or sheet obtained by the above method is laminated with a foamable film or sheet and subjected to foaming and molding to obtain a packaging container having gas barrier properties and heat insulation properties. You can also.
- Gas barrier packaging container obtained by providing a gas barrier layer on a substrate having the final shape of the container
- the gas barrier coating composition obtained from the present invention is applied by various coating methods to a plastic base material having the shape of a final packaging container obtained by a method such as a molding method using a gas barrier package.
- Containers can be manufactured.
- the shape of the packaging container is box-shaped, tube-shaped, tray-shaped, cup-shaped, A representative shape such as a pottle shape or any other shape may be used.
- a method of applying the gas barrier coating composition to the plastic substrate having the shape of the final packaging container it is suitable for coating the surface of a substrate having a complicated shape such as a spray coating method or a dive method. The method is more preferred.
- the location where the gas barrier coating composition is applied may be on the outer surface, the inner surface, or on both surfaces of the container.
- a more suitable packaging container can be obtained by further providing a coating film of a plastic film or a polymer on the outer surface of the gas barrier layer and protecting the gas barrier layer. .
- paper When paper is used as the base material of a packaging container, it is usually used as a composite material in which paper for maintaining the shape of the container and a plastic film for preventing penetration or leakage of liquid food are laminated.
- the configuration is not particularly limited as long as a good packaging container can be obtained.
- polyethylene gas barrier layer (1)
- paper / paper / (gas barrier layer (2)) / polyethylene
- a four-layer or five-layer configuration can be exemplified.
- the gas barrier layer (1) and the gas barrier layer (2) may include at least one of them.
- the material composition is further multi-layered, and polyethylene Z (gas barrier layer (1)) Z polyethylene Z (gas barrier layer (2))
- the gas barrier layer (3)) / polyethylene 5 to 7 layers can be exemplified.
- the gas barrier layers (1) to (3) may include at least one of them.
- the method of providing a gas barrier layer in a paper container using the gas barrier coating composition obtained from the present invention is as follows. First, a plastic coated with the gas barrier coating composition in the same manner as described above is used. A method of laminating the film or sheet with paper to obtain a paper-plastic composite material can be suitably used. The composite layer (paper-plastic composite material) of the paper and the gas-barrier composite plastic film or sheet thus obtained can form a gas-barrier packaging container.
- the container is also one of the present invention. It is.
- the paper-plastic composite material is cut into a predetermined shape, and a paste is attached with an adhesive or the like so as to have a predetermined shape. It is possible to use a method in which a heat-meltable resin is laminated on the superposed surface and then fused by heating.
- the gas barrier layer formed by the gas barrier coating agent composition Is preferably 0.1 to 100 / m as a dry film of the gas barrier layer. If the thickness of the gas barrier layer is less than 0.1 ⁇ m, it is difficult to obtain the desired gas barrier property. No improvement in barrier properties is observed, and it is not preferable for use in applications requiring high transparency. More preferably, it is about 0.1 to 50 ⁇ . When the gas barrier layer is thick, it is difficult to follow the deformation of the container, and cracks and the like are likely to occur. It is preferable to be about 1 to 5.0 ⁇ .
- gas barrier properties when gas barrier properties are required more than transparency, it is advantageous to provide a gas barrier layer having a large thickness.
- the transparency is higher than that of the conventional gas barrier layer provided by the coating method. If the properties are the same, the gas barrier property is good, and if the gas barrier property is the same, good transparency is obtained.
- the gas barrier packaging container obtained from the above-mentioned materials and the production method can be suitably used as a container for food and medicine.
- food applications include snacks-packaging for instant noodles, boiled retort foods, and mayonnaise
- Tubular container for P, etc. Miso soup.
- compositions include pouches and bottles for bags, bottles, ointments, and the like for powders, tablets, and liquid drugs.
- Ethylene monobutyl alcohol-based resin whose oxygen permeability at a film thickness of 10 ⁇ is 0.1 (c 3 / m 2 ⁇ day ⁇ kP a) or less at room temperature (trade name “Soanol D—290 8 30 parts, manufactured by Nippon Synthetic Chemical Co., Ltd.), heated to 80 ° C. with stirring, and reacted for about 2 hours. Thereafter, the mixture was cooled to obtain a resin solution B having a solid content of 30%.
- Examples 1 and 2 and Comparative Examples 1 and 2 (Preparation of Gas Barrier Coating Composition Containing Inorganic Layered Compound Dispersion)
- an inorganic layered compound As an inorganic layered compound, 5 parts of montmorillonite (trade name "Kunipia F", manufactured by Kunimine Industries Co., Ltd.) and 0.4 part of hydrogen peroxide were added to purified water with stirring, and sufficiently dispersed by a high-speed stirring device. Thereafter, in order to make cleavage more sufficient, treatment was performed using a high-pressure dispersion device, and the temperature was maintained at 40 ° C. for 1 day to obtain an inorganic layered compound dispersion of Example 1. 50% purified water, IPA 50 ° /. To 60 parts of the mixed solvent of the above, 4 parts of the resin solution A was added, and the mixture was sufficiently stirred and mixed.
- Example 2 Preparation of gas barrier coating composition 2
- an inorganic layered compound 5 parts of montmorillonite (trade name "Kunipia F", manufactured by Kunimine Industries Co., Ltd.) was added to 5 parts of purified water with stirring, and sufficiently dispersed with a high-speed stirring device to obtain an inorganic layered compound dispersion A.
- montmorillonite trade name "Kunipia F", manufactured by Kunimine Industries Co., Ltd.
- To 60 parts of a mixed solvent of 50% of purified water and 50% of IPA 4 parts of the above resin solution B was added, and the mixture was thoroughly stirred and mixed. Further, while this solution was stirred at a high speed, 36 parts of an inorganic solvent compound dispersion A and 0.4 parts of a 30% aqueous hydrogen peroxide solution were added.
- the gas barrier coating agent and the compositions 1 to 4 were filtered through a 255 mesh finoletor and a urethane anchor coat (bar coater) was applied so that the barrier coat layer thickness was 0.3 / 111 or 1 ⁇ 111.
- AC) agent is applied to a biaxially stretched polypropylene film (OPP film, trade name "Pyren P-2161", 25 m thick, manufactured by Toyobo Co., Ltd.), dried, and heated at 40 ° C. Aged for 3 days. The following evaluation was performed on the obtained gas-barrier composite plastic film. Table 1 shows the results.
- the oxygen transmission rate (OTR value) of each of the above coated products was measured using an oxygen transmission rate measuring apparatus (trade name “OX-T.RAN 100”, manufactured by Mocon). The measurement was performed in an atmosphere of 23 ° C. and 80% RH.
- the transparency of the coated product was visually evaluated. From that state, the evaluation was made in two stages: A: equivalent or almost equivalent to the base material, and B: cloudy appearance.
- the base material ⁇ PP represents the biaxially oriented polypropylene r used as the base material.
- a polyurethane adhesive main agent: trade name “A— 969 V ", curing agent: brand name” A-5 ", both manufactured by Taked
- an oxygen permeability measurement device (trade name “ ⁇ X—TR AN 100 ”(manufactured by Mocon) was used to measure the oxygen transmission rate (OTR value) between the outside and inside of the obtained packaging container, and the evaluation results are shown in Table 2. The measurement was performed in an atmosphere at 23 ° C. and 80% RH. Table 2
- the inorganic layered compound dispersion of the present invention is a thin film-shaped dispersion in which the inorganic layered compound is cleaved to near primary particles without applying mechanical force, and the presence of such a peroxide
- the gas barrier coating composition containing the inorganic layer compound which is cleaved and dispersed below has good transparency irrespective of the film thickness, and enables formation of a gas barrier layer having higher gas barrier properties.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Wrappers (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004534103A JP4563808B2 (ja) | 2002-08-20 | 2003-08-18 | 無機層状化合物分散液、その製造方法及びその用途 |
US10/524,680 US20060141178A1 (en) | 2002-08-20 | 2003-08-18 | Inorganic layered compound dispersion, process for producing the same, and use thereof |
AU2003262243A AU2003262243B2 (en) | 2002-08-20 | 2003-08-18 | Inorganic layered compound dispersion, process for producing the same, and use thereof |
EP03794085A EP1538127A4 (en) | 2002-08-20 | 2003-08-18 | DISPERSION OF INORGANIC LAYERED COMPOUND, PROCESS FOR PRODUCTION AND USE |
Applications Claiming Priority (2)
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JP2002239677 | 2002-08-20 | ||
JP2002-239677 | 2002-08-20 |
Publications (1)
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WO2004022485A1 true WO2004022485A1 (ja) | 2004-03-18 |
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ID=31972388
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PCT/JP2003/010395 WO2004022485A1 (ja) | 2002-08-20 | 2003-08-18 | 無機層状化合物分散液、その製造方法及びその用途 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060141178A1 (ja) |
EP (1) | EP1538127A4 (ja) |
JP (1) | JP4563808B2 (ja) |
KR (1) | KR20050058386A (ja) |
CN (1) | CN100572272C (ja) |
AU (1) | AU2003262243B2 (ja) |
WO (1) | WO2004022485A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007023856A1 (ja) * | 2005-08-24 | 2007-03-01 | Sakata Inx Corp. | 熱水処理包装用ガスバリヤ性複合フィルム及びそれを用いて得られる包装袋 |
JP2009196322A (ja) * | 2008-02-25 | 2009-09-03 | Sony Corp | 熱転写受容シート及びその製造方法 |
JP2011236065A (ja) * | 2010-05-06 | 2011-11-24 | Tomoegawa Paper Co Ltd | 粘土膜、粘土分散液および粘土分散液の製造方法 |
JP2015038037A (ja) * | 2014-11-18 | 2015-02-26 | 株式会社巴川製紙所 | 粘土分散液の製造方法および粘土膜の製造方法 |
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CN100510184C (zh) * | 2003-08-04 | 2009-07-08 | 阪田油墨株式会社 | 阻气性涂布剂组合物、其制造方法及使用该组合物得到的阻气性包装容器 |
US20080081182A1 (en) | 2006-10-02 | 2008-04-03 | Pham Hoai Nam | Fluoropolymer blends with inorganic layered compounds |
CN101559340B (zh) * | 2009-05-18 | 2012-01-25 | 中国科学院长春应用化学研究所 | 一种制备无团聚纳米材料的方法 |
US9663677B2 (en) | 2010-09-07 | 2017-05-30 | Sun Chemical B.V. | Carbon dioxide barrier coating |
CN103649245B (zh) * | 2011-05-04 | 2017-06-20 | Kth控股公司 | 用于包装应用的氧气阻隔体 |
PE20141701A1 (es) * | 2011-08-24 | 2014-11-14 | Dainippon Ink & Chemicals | Composicion de resina que contiene un compuesto inorganico tipo placa y utilizado para adhesivos, y adhesivo |
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CN109988413A (zh) * | 2017-12-29 | 2019-07-09 | 深圳光启尖端技术有限责任公司 | 一种气体阻隔材料及其制备方法 |
CN112074391A (zh) * | 2018-05-10 | 2020-12-11 | 三得利控股株式会社 | 塑料瓶用预塑形坯的涂布方法 |
CN112645343B (zh) * | 2020-12-21 | 2021-12-10 | 西南科技大学 | 由金云母水热反应合成的蛭石及其制备方法 |
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US5700560A (en) * | 1992-07-29 | 1997-12-23 | Sumitomo Chemical Company, Limited | Gas barrier resin composition and its film and process for producing the same |
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JP3689174B2 (ja) * | 1996-05-02 | 2005-08-31 | 水澤化学工業株式会社 | 劈開性非晶質シリカ粒子及びその製法 |
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- 2003-08-18 EP EP03794085A patent/EP1538127A4/en not_active Withdrawn
- 2003-08-18 WO PCT/JP2003/010395 patent/WO2004022485A1/ja active Application Filing
- 2003-08-18 KR KR1020057002861A patent/KR20050058386A/ko active Search and Examination
- 2003-08-18 US US10/524,680 patent/US20060141178A1/en not_active Abandoned
- 2003-08-18 JP JP2004534103A patent/JP4563808B2/ja not_active Expired - Fee Related
- 2003-08-18 AU AU2003262243A patent/AU2003262243B2/en not_active Ceased
- 2003-08-18 CN CNB038196123A patent/CN100572272C/zh not_active Expired - Lifetime
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007023856A1 (ja) * | 2005-08-24 | 2007-03-01 | Sakata Inx Corp. | 熱水処理包装用ガスバリヤ性複合フィルム及びそれを用いて得られる包装袋 |
JPWO2007023856A1 (ja) * | 2005-08-24 | 2009-02-26 | サカタインクス株式会社 | 熱水処理包装用ガスバリヤ性複合フィルム及びそれを用いて得られる包装袋 |
JP2009196322A (ja) * | 2008-02-25 | 2009-09-03 | Sony Corp | 熱転写受容シート及びその製造方法 |
JP2011236065A (ja) * | 2010-05-06 | 2011-11-24 | Tomoegawa Paper Co Ltd | 粘土膜、粘土分散液および粘土分散液の製造方法 |
JP2015038037A (ja) * | 2014-11-18 | 2015-02-26 | 株式会社巴川製紙所 | 粘土分散液の製造方法および粘土膜の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20050058386A (ko) | 2005-06-16 |
CN100572272C (zh) | 2009-12-23 |
JP4563808B2 (ja) | 2010-10-13 |
EP1538127A1 (en) | 2005-06-08 |
CN1675129A (zh) | 2005-09-28 |
AU2003262243A1 (en) | 2004-03-29 |
EP1538127A4 (en) | 2010-11-03 |
AU2003262243B2 (en) | 2008-08-14 |
JPWO2004022485A1 (ja) | 2005-12-22 |
US20060141178A1 (en) | 2006-06-29 |
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