WO2009113724A1 - Stratifié, organe couvrant pour contenant scellé hermétiquement l'utilisant, et contenant scellé hermétiquement - Google Patents

Stratifié, organe couvrant pour contenant scellé hermétiquement l'utilisant, et contenant scellé hermétiquement Download PDF

Info

Publication number
WO2009113724A1
WO2009113724A1 PCT/JP2009/055373 JP2009055373W WO2009113724A1 WO 2009113724 A1 WO2009113724 A1 WO 2009113724A1 JP 2009055373 W JP2009055373 W JP 2009055373W WO 2009113724 A1 WO2009113724 A1 WO 2009113724A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
laminate
resin
surface layer
thermoplastic resin
Prior art date
Application number
PCT/JP2009/055373
Other languages
English (en)
Japanese (ja)
Inventor
高木康行
Original Assignee
住友化学株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友化学株式会社 filed Critical 住友化学株式会社
Priority to CN2009801084514A priority Critical patent/CN101970225B/zh
Publication of WO2009113724A1 publication Critical patent/WO2009113724A1/fr

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
    • 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
    • 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
    • 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
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • 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
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers
    • 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
    • B32B2439/40—Closed containers
    • 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
    • B32B2439/70—Food packaging

Definitions

  • the present invention provides an aluminum foil layer that is excellent in shape retention (particularly, retainability of warping and bending deformation) and suitable for use as a lid for a closed container.
  • shape retention particularly, retainability of warping and bending deformation
  • suitable for use as a lid for a closed container for laminates that do not exist, and for the packaging field of the laminates
  • a closed container for storing food such as yogurt and print a laminated body composed of a aluminum foil base material and a heat seal layer is used as a lid. It is used.
  • ⁇ * — 'cum foil base material it is an alternative to ⁇ * — 'cum foil base material. Development of lid materials with base materials is under consideration
  • a copolymer layer having a specific composition ratio of a styrene monomer (a) and a conjugated gen monomer (b) is used as a base material layer.
  • the aluminum cover material is described.
  • the present invention provides an aluminum laminate that is excellent in shape retention and suitable as a material for a lid for an airtight container, and furthermore, seal strength stability and easy peelability.
  • An object of the present invention is to provide an aluminum laminate suitable as a material for a lid material, and to provide a lid for a sealed container and a sealed container with excellent sealing performance. .
  • the present invention is arranged between a surface layer, a base material layer, and the surface layer and the base material layer, and adheres to the surface layer on one surface thereof and adheres to the base material layer on the other surface.
  • the surface layer is made of a resin material containing a thermoplastic resin, and forms one surface of the laminate.
  • the base material layer is made of a resin material containing 40% by mass or more of an amorphous thermoplastic resin having a glass transition point in the range of 50 ° C. to 1550 ° C.
  • the thickness of the base material layer is 30 ⁇ m to 200 ⁇ m, and the force, the thickness of the laminate is 60 / ⁇ m to 25 ⁇ ⁇ ⁇ .
  • a laminate is provided.
  • the present invention also provides a lid for a sealed container comprising the above laminate, and a sealed container provided with the lid and a container body.
  • the laminate according to the present invention is disposed between the surface layer, the base material layer, and the surface layer and the material layer, and adheres to the eye layer on the surface.
  • the thickness of the laminate is in the range of 30 / zm to 200 / m, preferably ⁇ is 80 ⁇ ! ⁇ 2 40 / xm, more preferred ⁇ is 1
  • the base material layer in the present invention is the thickest layer contained in the laminate of the present invention.
  • the base material layer of the glass substrate has a glass transition point in the range of 50 ° C. to 1550 ° C.
  • a base material made of a resin material containing an amorphous thermoplastic resin having a glass transition point within the above range provides the laminate of the present invention with high rigidity and shape retention, particularly warping, deformation and folding. It is possible to provide a laminate having excellent bending deformation retention. Not included in the base material layer
  • the glass transition point of the thermoplastic resin is preferably in the range of 60 ° C to 140 ° C, and in the range of 70 ° C to 120 ° C. I like it.
  • the resin material constituting the base material layer contains two or more amorphous thermoplastic resins having such a glass transition point, and the “amorphous thermoplastic resin J” in the present invention is used. Is a thermoplastic resin whose endothermic peak is not measured in the differential calorimeter (DSC), and “glass transition point” in the present invention is defined in JISK 7 1 2 1 It is a value measured by DSC according to the method described.
  • Examples of the amorphous thermoplastic resin contained in the resin material constituting the base material layer include styrene resin and ester resin.
  • Examples of the styrene-based resin include polystyrene and rubber-modified polystyrene. Rubber-modified polystyrene is made of styrene polymer and soft component particles obtained from styrene polymer and rubber polymer. In the matrix to become: 1 month of existence that exists in a dispersed manner, and it is a high impact resistance polystyrene (High Im Pact Po 1 ystyrene).
  • HIPS Abbreviated as HIPS
  • a polystyrene that constitutes a styrenic polymer which is a matrix in rubber-modified polystyrene.
  • polystyrene is generally used as the monomer, o-methyl styrene, m-methyl styrene, P_-methyl styrene, etc. Replace with styrene.
  • Comb polymers contained in soft component particles include butadiene polymer polystyrene butadiene copolymer ⁇ , isopropylene polymer, styrene polymer.
  • the cis content is high, cis, wa, ⁇ -nois cis polybutadiene, or the cis content is about 35%.
  • the ester resin that can be used for K-NORESIS POLYBOHGEN J is manufactured by multiplying a monobasic acid and a polyvalent alcohol.
  • the resulting monoacids include aromatic dicarboxylic acids such as terephthalic acid, isofanolenoic acid, and 2,6-naphthalenediful carboxylic acid.
  • polyvalent aldehydes such as acids and aliphatic dicarboxylic acids such as adipic acid include ethylene glycol, 1, 4-butanediol. 1, 1, 4 One-way hexane methanol, Penta-ethylene glycol, 2, 2-Dimethyl dimethyl V, Hexa-methyl For example, the length V and the neo- Ventil V call.
  • ester resin in which any monobasic acid and any polyvalent alcohol may be combined in an ester resin
  • terephthalic acid / Ethylene glycol co-polymer ⁇ body terephthalic acid ethylene glycol / 1, 4 1 hexane dimethanoyl
  • Examples include an original copolymer, 2,6_naphthalenedicarboxylic acid ethylene glycol copolymer, and terftal acid Z l, 4-butanediol copolymer.
  • the amorphous thermoplastic resin contained in the base material layer may be rubber-modified polystyrene and Zinc phthalate, 1, 4 — hexene dimethylanol terpolymer is preferred, rubber-modified polystyrene is more preferred ⁇ .
  • the container body is formed of an amorphous thermoplastic resin from the viewpoint of material recycling
  • the same resin as the amorphous thermoplastic resin is used. More preferably, it is used as an amorphous thermoplastic resin for the base material layer.
  • the container body contains rubber-modified polystyrene
  • the base material layer cover of the laminate of the present invention is used.
  • the non-plastic thermoplastic resin contains rubber-modified polystyrene.
  • the resin material for forming the base material layer is further composed of a polyamide resin, a polyester resin, a polycarbonate resin, a polyolefin resin. It may contain other thermoplastic resins such as plastics, ionomer resins, biodegradable resins, etc.
  • Polyamide-based resin includes 6 nylon, 6 6 nylon, 6 —
  • Nylon Polymethylated Regenerative /, ° Mide, Polymethylated Pyramid, Polymethylated Randomamide, Poli Paraki
  • Examples thereof include a siloxane copolymer, and a styrene copolymer.
  • Polyester resins include polyethylene terephthalate--h, polypropylene terephthalate, polyphenylene terephthalate.
  • Polyolefin resins include ultra-low density polyethylene (V L )
  • DPE Linear Low Density Polyethylene
  • LLDPE Linear Low Density Polyethylene
  • LDPE Low Density Polyethylene
  • MDPE Medium Density Polyethylene
  • HDPE High Density Polyethylene
  • EVA ethylene monoacetate copolymer
  • EMMA ethylene methyl methacrylate copolymer
  • EAA ethylene-ethyl chloride copolymer Copolymer
  • EMA ethylene-methylacrylate copolymer
  • EA ethylene-acrylic acid copolymer
  • E — VAG ethylene-methacrylic acid copolymer
  • E_GMA ethylene-glycidyl methacrylate copolymer
  • E — VAG ethylene-vinyl acetate Single cisyl methacrylate copolymer
  • polypropylene homopolymers polypropylene homopolymers
  • polyolefins such as copolymers of propylene and other ⁇ -olefins, ethylene, Nonrebornenes, random copolymers with cyclic polyolefins such as tetracyclodecenes and their derivatives, ring-opening copolymers of cyclic polyolefins, cyclic copolymers
  • Cycloolefin resins such as olefins of olefin ring-opening copolymers and graft modified products of these copolymer a-forms are also the above-mentioned porphyrin series resins. Listed as fat.
  • ethylene monoacrylic acid copolymer ⁇ form Metal neutralized products of the above, and metal neutralized products of ethylene-methacrylic acid copolymers.
  • Biodegradable resins include polylactic acid (for example, ⁇
  • CE A CE A
  • Cellulose Acetate for example,“ Senoregrin P CA ”manufactured by Daicel Chemical Industries, Ltd.
  • modified starch for example, Nihon Corn Starch Co., Ltd.
  • the content of the amorphous thermoplastic resin in the resin material forming the base material layer is in the range of 40% by mass to 100% by mass, and 50% by mass.
  • Resin materials that make up the base material layer should contain additives such as lubricants, antistatic agents, antioxidants, heat stabilizers, UV absorbers, antibacterial agents, and antifogging agents.
  • the thickness of the material layer is in the range of 30 / z m to 20 00 / x m, preferably in the range of 40 m to 180 ⁇ , and 50 ⁇ 16
  • the surface layer in the laminate of the present invention is a layer in which one surface is one side and one surface of the self-layered body.
  • This surface layer is made of a resin material containing a thermoplastic resin.
  • the composition of the resin material constituting the surface layer may be appropriately determined according to the use of the laminate. For example, in a laminate designed as a lid for a hermetic container, the surface layer is moderately sealed with the container body in consideration of the fact that the surface layer becomes a seal layer attached to the container body. It is possible to select a composition that exhibits the seal strength of wear.
  • the resin material preferably contains one or more amorphous thermoplastic resins having a glass transition point of 50 ° C to 120 ° C.
  • thermoplastic resin As an example of a thermoplastic resin, it is used for a base material layer.
  • thermoplastic resin examples include styrene resin and ester resin. Also, from the viewpoint of the material's y cycle,
  • the container body is not
  • the layered body of the present invention is applied to the non-removable layer.
  • thermoplastic resin The same type of resin as that of the thermoplastic resin
  • each face layer is preferred, for example, if one container contains rubber-modified polyethylene, it is a laminate designed as a lid for the container. Nite, the base layer
  • the resin material for the surface layer contains additives such as lubricants, anti-blocking agents, anti-banding agents, antioxidants, heat stabilizers, ultraviolet absorbers, antibacterial agents and anti-fogging agents. It's okay.
  • the thickness of the surface layer is preferably in the range of 1 m to 15 m ⁇ , preferably in the range of 3 m to 10 m, and in the range of 3 m to 8 m. When the thickness of the surface layer is more preferable in the above range, the surface layer is destroyed when the material is peeled off from the sealed container for the use of the lid for the sealed container. It is possible to delaminate the adhesive layer and the surface layer, and when delamination occurs, a substantially constant delamination strength occurs regardless of the seal temperature of the lid to the container body. As well as being easy to open the container The
  • the ratio of the thickness of the surface layer to the thickness of the base material layer is preferably in the range of 1/6 to 1550, and more preferably. ⁇ Is in the range of 1/6 to 1/30.
  • the adhesive layer in the calendar of the present invention is disposed between the surface layer and the base material layer, and adheres to the surface layer on one surface thereof, and the other side.
  • This layer is bonded to the base material layer.
  • the adhesive layer may be a single-layer adhesive layer or a multilayer adhesive layer composed of two or more layers.
  • the multilayer adhesive layer can achieve a desired balance between the adhesive strength between the adhesive layer and the surface layer and the adhesive strength between the adhesive layer and the base layer with a single-layer adhesive layer.
  • the adhesive layer that is mainly used when there is no styrene elastomer and Z or ethylene
  • SEBS styrene monoethylene -propylene monoblock copolymer
  • SEP styrene monoethylene -propylene monoblock copolymer
  • HSBR hydrogenated styrene N-butagen-rubber
  • ethylene-unsaturated norbornate ester copolymers include ethylene glycol ester.
  • the above resin composition for forming the adhesive layer is composed of an ethylene resin and an ethylenic unsaturation force / ethylene monounsaturation force / levonic acid ester copolymer, It may contain a polypropylene resin, an ester resin, or a styrene resin thermoplastic resin.
  • the content of styrene-based elastomer and ethylenic monounsaturated rubonic acid ester copolymer in the adhesive layer is 10% by mass to 1% respectively.
  • the total content of a containing both styrene-based elastomer and ethylene-unsaturated carboxylic acid ester copolymer is 2 It is preferably 0 mass 0 /) to 100 mass%, and 40 mass 0 /. It is more preferable that the content is ⁇ 100% by mass, styrene elastomer and ethylene monounsaturated sulfonic acid ester copolymer.
  • ⁇ (styrene-based elastomer: ethylene-unsaturated strength carboxylic acid ester copolymer) of each content is 1: 9 ⁇ 9: 1 is preferred,
  • the resin composition may contain additives such as a lubricant, an antistatic agent, an antioxidant, a heat stabilizer, an ultraviolet absorber, an antibacterial agent and an antifogging agent.
  • additives such as a lubricant, an antistatic agent, an antioxidant, a heat stabilizer, an ultraviolet absorber, an antibacterial agent and an antifogging agent.
  • the thickness of the adhesive layer is preferably 5 / zm to l 00 / im, more preferably 10 / im to 85 / m, and 10 / zm. It is even more preferred that it is ⁇ 70 im.
  • the thickness of the adhesive layer is within the above range As a result, it is possible to produce a laminate having an appropriate interlayer strength.
  • the laminate of the present invention can be used for its use, and then, on the base material layer, one layer or
  • thermoplastics For example, in a laminate that is intended for use as a lid for a closed container, decorative film strength such as printing on a film made of a thermoplastic resin; an applied surface protective layer is placed.
  • the surface layer of Fe sf is Nine, Polyethylene terephthalate, Polypropylene, Polyethylene-Binylene Real Copolymer, etc. It is preferable that
  • the thickness of the surface protective layer is preferably within a range of 5 ⁇ m to 50 tm, and more preferably within a range of 10 ⁇ m to 40 ⁇ m than force S.
  • the laminate according to the present invention can be produced by a conventionally known additive method such as an infusion method by co-extrusion, a T-dy method, or a press method.
  • the film which becomes the surface layer, the adhesive layer or the base material layer is manufactured separately, and these are contacted by a laminator etc. to obtain a laminate.
  • the film for each layer of the laminate can be manufactured by various methods such as the inflation method, T-dye method, and press method. .
  • the lid member according to the present invention can be obtained by forming the upper layer structure into a predetermined shape.
  • a shape that can cover the opening of the sealed container body using a molding machine after punching the laminate into a circle for example, It can be obtained by narrowing to a truncated cone shape or a cylindrical shape.
  • the surface layer is formed so as to be located inside.
  • a sealed container according to the present invention includes a lid made of the laminate of the present invention and a container main body, and the lid is sealed to the container main body on the surface layer thereof.
  • a closed container such as o
  • the adhesion of the surface layer is preferably done with a seal.
  • the material and shape of the container body are not particularly limited.
  • the container body is, for example, steel.
  • examples of such materials include plastics, plastics, force soaps, and balls made of thermoplastic resins such as vinyl polymers, polyesters, posiers, and resins.
  • the main body may be a single-layer body ⁇ , or each layer may be a multilayer body made of thermoplastic resin.
  • a container body that contains the same resin as the surface layer of the lid. ⁇ Common with the surface layer, adhesive layer, and base material layer It is more preferable to use a container body containing the following resin: o Example
  • rubber-modified polyethylene (Hitachi Polystyrene Co., Ltd. H55, Glass transition point 100 ° C) 2 0 Mass parts and Polystyrene (Kyoto Polystyrene Co., Ltd. G 4 4 0
  • thermoplastic resin B 80 K mass parts and pellet K resin were used.
  • this blend resin is referred to as thermoplastic resin B.
  • the resin material that forms the adhesive layer the following four components are melt-mixed using a 45 mm twin screw extruder in the same direction with the cylinder temperature and die temperature set at 220 ° C. The pellets obtained were used.
  • Rubber-modified polystyrene (Nihon Polystyrene H5550, glass transition point 100 ° C) 2 2 parts by mass
  • the resin material used to form the base material layer is rubber-modified polystyrene (H5500 manufactured by Nippon Polystyrene Co., Ltd.) used in the adhesive layer, glass transition point. 1 0 0 ° C) was used.
  • this resin material is referred to as a thermoplastic resin A.
  • the laminate was produced by coextrusion using a three-kind, three-layer coextrusion T die cast machine equipped with three extruders (extruder A, extruder B, and extruder C).
  • the thermoplastic resin B for the surface layer is introduced into the extruder A
  • the resin composition for the adhesive layer is introduced into the extruder B
  • the thermoplastic resin A for the base material layer is introduced into the extruder C. Melt kneading was performed.
  • each material is laminated by coextrusion, and the base material layer, adhesive layer, and surface layer are in this order.
  • the details of the three extruders that produced the laminated product are as follows.
  • Extruder A 60 mm ⁇
  • Extruder B 60 mm
  • Extruder C 90 mm ⁇
  • the processing temperatures are 220 ° C. for Extruder A, 190 ° C. for Extruder B, and 23 ° C. for Extruder C.
  • the temperature was 25 ° C.
  • the edge discharge treatment was performed on the surface of the base material layer of the laminate in which the wetting tension was 45 dyn / cm.
  • the surface layer thickness was 5 ⁇ m
  • the adhesive layer thickness was 10 / m
  • the material layer thickness was 100 ⁇ m. The thickness of 1 1
  • a surface protective layer was provided on the base material layer by the following procedure.
  • an aliphatic ester coating agent Takei Nitta Takeshi Nore Co., Ltd. “Takelac A _ 5 1 5”
  • curing agent Takeda Niitake Surface protection layer ("Adhesive mixture a" obtained by mixing and mixing well) "Takenet-to-A-50" and ethyl acetate in a mass ratio of 10 1 1 15 respectively.
  • Polyester Tenoru Inenomu commercial company of Unitichi Power Co., Ltd.
  • DP name “PTMX”, thickness 1 2 ⁇ , width 3 30 mm) was applied to one side.
  • the film was bonded with the adhesive surface of the laminate with the adhesive mixture coating surface, and then heated in a 40 ° C. oven for 24 hours. A protective laminate was obtained.
  • thermoplastic resin B As a resin material for forming the surface layer, it is used for forming the surface layer in Example 1. Used resin material (ie, thermoplastic resin B).
  • the resin material used for forming the adhesive layer in Example 1 was used as the resin material for forming the adhesive layer.
  • the resin material for forming the base material layer As the resin material for forming the base material layer, the following four components were melt mixed using the same direction 45 mm ⁇ twin screw extruder with the cylinder temperature and die temperature set at 220 ° C. The pellets obtained in this way were used.
  • Ethylene / methyl methacrylate copolymer (trade name: CG 400 2 manufactured by Sumitomo Chemical Co., Ltd.), a structure derived from methyl acrylate.
  • Composition unit content 3 1 part by mass
  • the laminated body uses a three-type three-layer coextrusion inflation machine equipped with three extruders (extruder A, extruder B and extruder C). It was made by film forming. First, put thermoplastic resin B for surface layer into Extruder A, resin material for adhesive layer into Extruder B, and resin material for base material layer into Extruder C, and melt knead with each extruder Went. Furthermore, each material was laminated by co-extrusion, and then inflated to produce a laminated body in which a base material layer, an adhesive layer, and a surface layer were laminated in this order.
  • the details of the inflation machine are as follows. Die diameter 1 5 0 mm ⁇ ,
  • Extruder A 50 mm ⁇
  • Extruder B 50 mm ⁇
  • Extruder C 50 mm ⁇
  • Extruder C Inflame tube outer layer
  • the X temperature is 20 ° C. in the extruder A, respectively.
  • Extruder B was 190 ° C
  • Extruder C was 22: 0 ° C
  • the die temperature was 210 ° C.
  • a ⁇ -na discharge treatment was performed on the surface of the base material layer of the laminate so that the wetting tension force was s 45 dyn / cm.
  • the surface layer thickness was 5 ⁇ m
  • the adhesive layer thickness was 28 ⁇ m
  • the material layer thickness was 37 m
  • the total thickness of the laminate was 7
  • a surface protective laminate was obtained by the same procedure as in Example 1 except that the thickness was 0 ⁇ m.
  • the resin material for forming the surface layer As the resin material for forming the surface layer, the resin material used for forming the surface layer in Example 1 (that is, thermoplastic resin B) was used.
  • the resin material used for forming the adhesive layer in Example 1 was used as the resin material for forming the adhesive layer.
  • the resin material for forming the material layer As the resin material for forming the material layer, the following three components were melt mixed using a 45 mm ⁇ twin screw extruder in the same direction with two set temperatures of the cylinder temperature and the die temperature of 220 ° C. Using the pellets obtained
  • Rubber-modified polystyrene manufactured by Nippon Polystyrene Co., Ltd. H 5 50 20 parts by mass
  • Example 2 Using the same three-kind three-layer coextrusion inflection machine used in Example 2, a laminate was produced in which the base material layer, the adjacent layer, and the surface layer were laminated in this order.
  • the resulting laminate had a face layer thickness of 5 m, a contact layer thickness of 30 ⁇ m • 9, a substrate layer thickness of 40 m, and a total thickness of the laminate of 7 5 ⁇ m was obtained. Further, a surface storage layer was obtained in the same manner as in Example 1.
  • Example 1 2 The laminated films obtained in Example 1 2 and Comparative Example 1 are evaluated by the following method, and the mouth ⁇ ⁇ ⁇ is shown in Table 1.
  • the laminates obtained in the examples or comparative examples were circular with a diameter of 70 mm.
  • the laminated body of the present invention is mainly designed to be a lid for a closed container, but the use of the laminate of the present invention is not limited to the lid for a closed container.

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne un stratifié comportant une couche de surface, une couche de base et une couche adhésive disposée entre la couche de surface et la couche de base. Un côté de la couche adhésive est lié à la couche de surface, et l'autre côté de la couche adhésive est lié à la couche de base. La couche de surface est composée d'un matériau de résine contenant une résine thermoplastique, et forme une surface du stratifié. La couche de base est composée d'un matériau de résine ne contenant pas moins de 40 % en masse d'une résine thermoplastique amorphe ayant une température de transition vitreuse dans la gamme de 50 à 150 °C, et a une épaisseur de 30 à 200 µm. Le stratifié a une épaisseur de 60 à 250 µm. L'invention concerne également un organe couvrant pour un contenant scellé hermétiquement utilisant le stratifié, et un contenant scellé hermétiquement.
PCT/JP2009/055373 2008-03-13 2009-03-12 Stratifié, organe couvrant pour contenant scellé hermétiquement l'utilisant, et contenant scellé hermétiquement WO2009113724A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009801084514A CN101970225B (zh) 2008-03-13 2009-03-12 叠层体、和使用该叠层体的密闭容器用盖体构件以及密闭容器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-063752 2008-03-13
JP2008063752A JP5380866B2 (ja) 2008-03-13 2008-03-13 積層体、及びこれを用いた密閉容器用蓋材並びに密閉容器

Publications (1)

Publication Number Publication Date
WO2009113724A1 true WO2009113724A1 (fr) 2009-09-17

Family

ID=41065373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/055373 WO2009113724A1 (fr) 2008-03-13 2009-03-12 Stratifié, organe couvrant pour contenant scellé hermétiquement l'utilisant, et contenant scellé hermétiquement

Country Status (4)

Country Link
JP (1) JP5380866B2 (fr)
CN (1) CN101970225B (fr)
TW (1) TW201000313A (fr)
WO (1) WO2009113724A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6801342B2 (ja) * 2016-09-29 2020-12-16 大日本印刷株式会社 再封性およびデッドホールド性を有するシーラントフィルム
JP2019181939A (ja) * 2018-03-30 2019-10-24 住化プラステック株式会社 積層体、並びにこれを用いた密閉容器用蓋材及び密閉容器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0747643A (ja) * 1993-08-06 1995-02-21 Dainippon Printing Co Ltd 蓋 材
JPH07112516A (ja) * 1993-10-19 1995-05-02 Idemitsu Petrochem Co Ltd 積層フィルム及びそれを用いた密閉容器
JP2006256256A (ja) * 2005-03-18 2006-09-28 Mitsubishi Plastics Ind Ltd 分配パッケージの蓋材用共押出フィルム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000052505A (ja) * 1998-06-03 2000-02-22 Nippon Polystyrene Kk 易開封性容器及びそれに用いる部材
JP4681802B2 (ja) * 2002-07-19 2011-05-11 出光ユニテック株式会社 多層シート、熱成形容器、蓋材、及び易開封性包装体
US20040072002A1 (en) * 2002-08-09 2004-04-15 Tohru Hashioka Heat-shrinkable polyolefin film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0747643A (ja) * 1993-08-06 1995-02-21 Dainippon Printing Co Ltd 蓋 材
JPH07112516A (ja) * 1993-10-19 1995-05-02 Idemitsu Petrochem Co Ltd 積層フィルム及びそれを用いた密閉容器
JP2006256256A (ja) * 2005-03-18 2006-09-28 Mitsubishi Plastics Ind Ltd 分配パッケージの蓋材用共押出フィルム

Also Published As

Publication number Publication date
JP5380866B2 (ja) 2014-01-08
CN101970225B (zh) 2013-10-30
CN101970225A (zh) 2011-02-09
JP2009214524A (ja) 2009-09-24
TW201000313A (en) 2010-01-01

Similar Documents

Publication Publication Date Title
JP5117255B2 (ja) 再封機能付き多層フィルム及びこれを用いた包装体
JP4902237B2 (ja) 再封機能付き多層フィルム及びこれを用いた再封可能な包装体
JP6331783B2 (ja) 包装体
JP5121244B2 (ja) 再封機能付き底材及びこれを用いた包装体
US20210339925A1 (en) High-barrier recyclable film
JP6369221B2 (ja) 包装体
JP6511713B2 (ja) 包装材用積層体
JP5396797B2 (ja) 共押出多層フィルム
JP2014004760A (ja) 積層体、その製造方法及びこれを用いる包装体
JP2014184971A (ja) 再封可能な包装体
JP2005199514A (ja) 多層積層樹脂フィルムおよびそれを使用した積層材
JP2018012201A (ja) 深絞り包装体用共押出多層フィルム並びにこれを用いた深絞り包装体用底材及び深絞り包装体
JP4655703B2 (ja) 易剥離性フィルムおよび蓋材
JP4839642B2 (ja) 易剥離性フィルムおよび蓋材
WO2009113724A1 (fr) Stratifié, organe couvrant pour contenant scellé hermétiquement l'utilisant, et contenant scellé hermétiquement
JP6511712B2 (ja) 包装材用積層体
JP2019151351A (ja) 包装体
JP6135893B2 (ja) 二次成形用多層シート及びこれを用いる包装体
JP7395839B2 (ja) シーラントフィルム
JP6388192B2 (ja) 深絞り成形用積層体および深絞り成形容器
JP7383900B2 (ja) 易静音剥離性積層体およびそれを用いた易静音開封性の蓋材と容器
JP4084968B2 (ja) イージーピール性多層複合フィルム
JP7281529B2 (ja) 積層体、ブリスター容器、及びプレススルーパッケージ
JP7281530B2 (ja) 積層体、ブリスター容器、及びプレススルーパッケージ
JP7187656B2 (ja) 積層体、ブリスター容器、及びプレススルーパッケージ

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980108451.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09720919

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09720919

Country of ref document: EP

Kind code of ref document: A1