WO2018062623A1 - 유해 물질 용출량이 저감된 식품용기 - Google Patents
유해 물질 용출량이 저감된 식품용기 Download PDFInfo
- Publication number
- WO2018062623A1 WO2018062623A1 PCT/KR2016/013991 KR2016013991W WO2018062623A1 WO 2018062623 A1 WO2018062623 A1 WO 2018062623A1 KR 2016013991 W KR2016013991 W KR 2016013991W WO 2018062623 A1 WO2018062623 A1 WO 2018062623A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- food container
- resin
- layer
- food
- container
- Prior art date
Links
- 235000013305 food Nutrition 0.000 title claims abstract description 161
- 238000010828 elution Methods 0.000 title abstract description 13
- 239000000383 hazardous chemical Substances 0.000 title abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 107
- 239000011347 resin Substances 0.000 claims abstract description 107
- 239000010410 layer Substances 0.000 claims description 93
- 239000006260 foam Substances 0.000 claims description 75
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 39
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 39
- 239000000126 substance Substances 0.000 claims description 30
- -1 polyethylene terephthalate Polymers 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 22
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 19
- 239000011247 coating layer Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 11
- 238000003856 thermoforming Methods 0.000 claims description 8
- VEIOBOXBGYWJIT-UHFFFAOYSA-N cyclohexane;methanol Chemical compound OC.OC.C1CCCCC1 VEIOBOXBGYWJIT-UHFFFAOYSA-N 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 32
- 230000035699 permeability Effects 0.000 description 21
- 230000009477 glass transition Effects 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 13
- 238000005259 measurement Methods 0.000 description 13
- 230000008859 change Effects 0.000 description 12
- 239000005556 hormone Substances 0.000 description 10
- 229940088597 hormone Drugs 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 9
- 238000009413 insulation Methods 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 7
- 239000000057 synthetic resin Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical compound CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 235000013361 beverage Nutrition 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 235000012149 noodles Nutrition 0.000 description 3
- 229920005990 polystyrene resin Polymers 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 235000013618 yogurt Nutrition 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- FSCWZHGZWWDELK-UHFFFAOYSA-N 3-(3,5-dichlorophenyl)-5-ethenyl-5-methyl-2,4-oxazolidinedione Chemical compound O=C1C(C)(C=C)OC(=O)N1C1=CC(Cl)=CC(Cl)=C1 FSCWZHGZWWDELK-UHFFFAOYSA-N 0.000 description 1
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 210000000750 endocrine system Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000004392 genitalia Anatomy 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Images
Classifications
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
-
- 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
- B32B27/065—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 foam
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/365—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0264—Polyester
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/08—Closed cell foam
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/10—Composition of foam characterised by the foam pores
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
-
- 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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/72—Density
-
- 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
- B32B2307/7244—Oxygen barrier
-
- 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
- B32B2307/7246—Water vapor barrier
-
- 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
-
- 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
- B32B2307/738—Thermoformability
-
- 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
- B32B2307/75—Printability
-
- 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
-
- 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
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/03—Extrusion of the foamable blend
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- 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
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/044—Micropores, i.e. average diameter being between 0,1 micrometer and 0,1 millimeter
-
- 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
- C08J2207/00—Foams characterised by their intended use
-
- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
Definitions
- the present invention relates to a food container.
- containers for filling food containers such as beverage containers, yoghurt containers, single serving containers, cup noodles, and disposable medical supplies, etc.
- tensile strength heat resistance
- thermal barrier properties light resistance
- moldability heat resistance
- surface glossiness light resistance
- printability printability
- synthetic resins are light and strong, do not rust or rot, are transparent and easy to color, easy to mass-produce, have excellent electrical insulation, good thermal insulation, hygienic and food preservation, and the like. It has advantages and is used for many purposes.
- a container made of a synthetic resin is manufactured as a container for various uses due to many advantages such as low cost, light weight, ease of molding, robustness, etc., and is particularly used as a food storage container.
- Polystyrene, polypropylene, AS resins, polycarbonates and the like are used as synthetic resins used in such food containers.
- the synthetic resin container when used as a food container, there is a problem that environmental hormones, which are harmful substances, are eluted as food that comes into contact with the surface of the synthetic resin container and threaten human health.
- the environmental hormone is a substance that disturbs the endocrine system from which human hormones come out, and it interferes with the development of the human body.
- Hormones are substances that help information exchange between numerous cells and organs. They are dissolved in the blood and act on receptors on specific cells. An abnormality occurs.
- Styrene trimers which are assumed to be environmental hormones, occur in the cup noodle container, and bisphenol A occurs in the inner coating layer of the beverage can and the feeding bottle.
- a method of cutting and re-wrapping paper (naphkin) and thick corrugated paper to a size or overlapping another empty disposable cup or the like is used to block the conductivity of the contents temperature in the cup and the container.
- An object of the present invention is to provide a food container that satisfies physical properties such as compressive strength, heat resistance, printability, and moldability, which are physical properties of a basic food container, while reducing the amount of harmful substances eluted and excellent in use stability.
- the present invention is a multi-layer structure comprising a foam layer having an average cell size of 100 to 500 ⁇ m and a resin layer laminated on one side or both sides of the foam layer,
- the resin layer provides a food container formed of a resin including a repeating unit represented by the following Chemical Formula 1.
- n and n represent the mole fraction of a repeating unit, and are each in the range of 1-100.
- thermoforming a resin-coated foam sheet comprising a repeating unit of formula (1) thermoforming a resin-coated foam sheet comprising a repeating unit of formula (1).
- n and n represent the mole fraction of a repeating unit, and are each in the range of 1-100.
- the food container according to the present invention has a multi-layer structure in which a foam layer having a controlled cell size and a resin layer are laminated on one side or both sides of the foam layer, thereby improving compressive strength and less deformation due to physical force, and elongation rate. It can be provided in various sizes and shapes by improving the moldability, oxygen storage and water vapor transmission rate is low, it is easy to store food, and excellent heat resistance can prevent the shape change even in high temperature water, Significantly low elution amount of harmful substances is harmless to the human body, improves the strength, printability and formability of the food container, and at the same time has the effect of excellent thermal barrier properties to improve the heat insulating properties of food.
- FIG. 1 is a scanning electron microscope (SEM) photograph showing the cell size of the foam sheet of the food container according to the embodiment.
- Figure 2 is a scanning electron microscope (SEM) photograph showing the cell size of the foam sheet of the food container according to Comparative Example 1.
- SEM scanning electron microscope
- Figure 4 is a graph showing the melting point (Tm) and glass transition temperature (Tg) of the PET resin used in the Examples.
- Tm melting point
- Tg glass transition temperature
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are only used to distinguish one component from another.
- the terms "comprises” or “having” are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.
- food containers such as beverage containers, yoghurt containers, single serving containers, and cup noodles are generally made of polystyrene resin, and when the synthetic resin containers made of such polystyrene resin are used as food containers, There was a problem that the environmental hormones, which are harmful substances, are eluted as foods to be contacted, which threatens human health. Paper food containers for preventing such harmful substances dissolution significantly reduced the thermal barrier properties and compressive strength, the cost was 3 to 10 times more expensive than synthetic resin containers.
- the present invention has been made to solve the problems of the conventional food container, by using a foam layer of the cell size controlled using a polyethylene terephthalate (PET) resin to improve the compressive strength and thermal insulation at the same time the glass transition temperature
- PET polyethylene terephthalate
- the food container according to the present invention has a multi-layered structure including a foam layer having an average cell size of 100 to 500 ⁇ m and a resin layer laminated on one or both sides of the foam layer.
- the resin layer is formed of a resin including a repeating unit represented by the following Chemical Formula 1.
- n and n represent the mole fraction of a repeating unit, and are each in the range of 1-100.
- the resin forming the resin layer may have a content of 20 mol% or more of the polymerized unit derived from cyclohexanedimethanol (CHDM) in a molecule, and specifically, of the polymerized unit derived from cyclohexanedimethanol (CHDM).
- the content may range from 20 to 90 mole percent, or from 30 to 90 mole percent.
- the melting point (Tm) may be lowered by inducing a decrease in crystallinity of the resin, thereby implementing excellent processability.
- the average cell size of the foam layer may be 110 to 450 ⁇ m, 130 to 430 ⁇ m, 150 to 410 ⁇ m, 180 to 400 ⁇ m, 200 to 380 ⁇ m, 220 to 360 ⁇ m or 250 to 350 ⁇ m.
- the thermal barrier property and the compressive strength of the food container is improved, it is easy to form a deep inside containing the contents during the molding of the food container. If the cell size is larger than 500 ⁇ m, it is difficult to process the container deeply when manufacturing the food container by thermoforming, and the compressive strength may be lowered. When the cell size is smaller than the above range, the compressive strength and thermal barrier property Can be degraded.
- the glass transition temperature (Tg) of the resin constituting the foam layer may be 70 to 90 °C, 75 to 85 °C or 80 to 90 °C.
- the glass transition temperature of the resin constituting the resin layer may be 65 to 95 °C, 70 to 90 °C, 75 to 85 °C or 78 to 90 °C.
- the foamed layer according to the present invention provides a food container excellent in heat resistance by satisfying the glass transition temperature in the above range.
- the multilayer structure may mean a 2 to 10 layer, a 2 to 8 layer, a 2 to 4 layer or a 2 layer structure.
- the resin including the repeating unit of Formula 1 may be, for example, polyethylene terephthalate glycol (hereinafter referred to as PETG) resin.
- PETG resin may have a structure in which cyclohexanedimethanol (CHDM) is copolymerized.
- CHDM cyclohexanedimethanol
- the cyclohexane dimethanol serves to prevent the crystallization of the resin
- PETG copolymerized with cyclohexane dimethanol will have an amorphous region. Therefore, the PETG resin is easy to maintain the viscosity to give the adhesion of the foam layer and the resin layer.
- the present invention satisfies the moldability and heat resistance of the food container at the same time by having a laminated structure of a foam layer of the resin having a glass transition temperature and a PETG resin layer having an amorphous region.
- Resin forming the resin layer in the present invention may not have a melting point (Tm) value in the range of 40 to 270 °C.
- the resin layer according to the present invention includes a repeating unit which reduces the melting point of the resin as a main repeating unit by the content of the polymerized unit derived from cyclohexanedimethanol (CHDM) in the molecule constituting the formula 1 satisfies the above range. . Accordingly, the resin layer according to the present invention has a low crystallinity by not having a melting point, and thus may exhibit excellent adhesion. In addition, such amorphousness can realize excellent lightness.
- the crystallinity of the resin forming the resin layer in the present invention may be less than 10%. Specifically, the crystallinity may be 5% or less, 2% or less, 0 to 2%, 0.001 to 0.5%, or 0.001 to 0.1%, and more specifically, the crystallinity may be 0%.
- the resin forming the resin layer according to the present invention satisfies the above-mentioned range, the viscosity can be maintained in an appropriate range even at a relatively low temperature at the time of preparing a food container, thereby exhibiting excellent processability.
- the food container according to the present invention has a two-layer structure, the inner layer of the container is formed of a foam layer, the outer layer of the container may be a structure formed of a resin layer. That is, the inner layer of the container may be a foam layer of a resin having a glass transition temperature of 65 to 95 ° C., and the outer layer of the container may be a resin layer of a resin including a repeating unit represented by the following Chemical Formula 1.
- n and n represent the mole fraction of a repeating unit, and are each in the range of 1-100.
- the food container according to the present invention may be 50 mg / kg or less of styrene elution under conditions heated for 5 minutes in an 800W microwave oven. Specifically, the elution amount of the volatile substance was measured under the condition that the prepared food container sample was heated in an 800W microwave oven for 5 minutes.
- the styrene elution amount may be 20 mg / kg or less, 10 mg / kg or less, or 0.01 mg / kg or less, and more specifically, styrene may not be eluted under the condition that the food container is heated in a microwave oven.
- volatile substances such as toluene, ethyl benzene, isopropyl benzene, and n-propyl benzene in addition to the styrene may not be eluted. Accordingly, when the food container according to the present invention is heated in a microwave oven, It can be seen that the human body can be effectively prevented from being exposed to harmful substances.
- the food container according to the present invention has a temperature difference between the inside of the container and the outside of the container at a temperature of 2 minutes in a state in which 70% (v / v) of water at 60 to 100 ° C. is contained in the container at ambient temperature at room temperature. It may be at least °C. This indicates that the thermal barrier property of the food container according to the present invention is excellent. Specifically, in the prepared food container containing 70% (v / v) of water at 100 ° C., at 2 minutes, the inside and outside of the container The temperature difference was measured. For example, the temperature difference between the inside and the outside of the food container measured under the above conditions may be 13 to 40 °C, 15 to 35 °C, 20 to 32 °C or 21.5 to 30 °C.
- a food container according to the present invention contained 70% (v / v) of water of 60 to 100 °C, 2 minutes elapsed, the internal temperature of the container when the external temperature of the container is 40 °C May be from 60 to 80 ° C.
- Food container according to the present invention by maintaining a relatively high temperature difference between the inside and outside of the container in the above conditions, it can be seen that the thermal insulation is excellent, thereby exhibiting an effect of effectively improving the warmth of food.
- the foam layer according to the present invention is a foam sheet of polyethylene terephthalate (PET) resin
- the resin layer may be a coating layer of polyethylene terephthalate (PET) resin.
- PET polyethylene terephthalate
- the foam layer may be provided in the form of a relatively thin foam sheet, thereby satisfying the light weight, and simultaneously realize the compressive strength by forming the coating layer.
- the density of the foam layer, foam sheet according to the present invention may be 30 to 400kgf / m 3 .
- the foam sheet may have a density of 50 to 350 kgf / m 3 , 70 to 300 kgf / m 3 , 80 to 250 kgf / m 3 , 90 to 200 kgf / m 3, or 100 to 150 kgf / m 3 .
- the density of the foam layer according to the present invention by having the above range, it is possible to implement the improved compressive strength while satisfying the thin thickness.
- the polyethylene terephthalate glycol resin does not generate harmful substances, there is a low risk characteristics even during the manufacturing process and incineration, and thus the amount of harmful substances remarkably increased when cooking food using the food container according to the present invention. Reduced.
- the coating layer of the polyethylene terephthalate glycol resin is formed to give strength to the food container to improve the compressive strength, it is excellent in printability and moldability. Therefore, the food container with a beautiful appearance can be manufactured easily.
- the average thickness of the multilayer structure may be 1.2 to 4 mm, 1.5 to 3.5 mm, 1.8 to 3 mm or 2 mm.
- the thickness ratio of the foam layer and the resin layer may be specifically 10: 0.2 to 1.5, 10: 0.3 to 1 or 10: 0.5.
- the food container according to the present invention is made up of a foam layer and a resin layer having a thickness in the above range, thereby satisfying lightness at the same time while improving the compressive strength.
- the average thickness of the food container may be 2 mm, wherein the average thickness of the foam layer is 1.9 mm, and the average thickness of the resin layer is 0.1 mm.
- the food container according to the present invention may satisfy the condition represented by Equation 1 below.
- V 0 is the volume of the food container (mm 3 ) before exposure to 100 ° C
- V 1 is the volume of the food container (mm 3 ) after exposure to 100 ° C. for 20 minutes.
- the dimensional change rate before and after exposing the prepared food container specimens at 100 ° C. for 20 minutes was measured.
- This is a measure corresponding to the rate of change of the dimensional dimension of a food container according to the invention.
- the volume may mean a value calculated by multiplying the length, width and thickness of each of the heat resistant material.
- the dimensional change rate according to Equation 1 may be 3% or less, 1% or less, 0.1% or less, 0.001% or less, or 0.0001 to 0.001%, and specifically, the dimension may not change.
- Equation 1 When Equation 1 exceeds 5%, it may mean that parts, distortion, discoloration or deformation may easily occur in the food container.
- the food container according to the present invention may have a compressive strength of 40 kgf or more when a load is applied at a speed of 100 mm / min in a vertical direction to one or lower surfaces of the food container.
- the compressive strength may be the compressive strength measured when applying a load at a speed of 100mm / min in the vertical direction using Load Cell 1KN, for example the compressive strength is 41 to 95kgf, 45 to 90kgf, 48 to 85 kgf or 50 to 80 kgf.
- the food container according to the present invention can satisfy the above-described compressive strength by forming a polyethylene terephthalate foam sheet in the inner layer of the container and forming a coating layer made of polyethylene terephthalate glycol resin on the outer layer of the container.
- Such food containers have the advantage that they are not easily deformed by external physical forces.
- the food container according to the present invention may have a water vapor transmission rate of 16 g / m 2 ⁇ day or less measured according to ASTM D 1249. Specifically, the water vapor permeability of the prepared food container specimen was measured for 30 minutes at (37.8 ⁇ 1) °C, 100% RH conditions. For example, the water vapor transmission rate measured under the above conditions are 15g / m 2 ⁇ day or less, 13g / m 2 ⁇ day or less, 1 to 10g / m 2 ⁇ day, 2 to about 9g / m 2 ⁇ day or 3 to 8.8g / m 2 can be day
- the food container according to the present invention may have an oxygen permeability of 1,500 cc / m 2 ⁇ day or less measured according to ASTM D 3985. Specifically, the oxygen permeability of the prepared food container specimen was measured for 30 minutes at (23 ⁇ 1) °C conditions. For example, the oxygen permeability measured under the above conditions may satisfy 50 to 1,450 cc / m 2 ⁇ day, 100 to 1,400 cc / m 2 ⁇ day, or 150 to 1,350 cc / m 2 ⁇ day.
- the food container according to the present invention can satisfy the water vapor permeability and oxygen permeability as described above by forming a polyethylene terephthalate foam sheet in the inner layer of the container and forming a coating layer made of polyethylene terephthalate glycol resin on the outer layer of the container.
- the container satisfies the low water vapor permeability and oxygen permeability of the above range, and has an advantage of excellent performance of shielding oxygen and water vapor to extend the shelf life of food.
- the food container according to the present invention may have a longitudinal tensile strength (TD) and a transverse tensile strength (MD) in the range of 4 to 20 measured according to ASTM D 638. Specifically, when tensile strength was measured at a speed of 5 mm / min using a universal testing machine (Model 3367, Instron), the longitudinal tensile strength (TD) was in the range of 4.5 to 7 MPa, and the transverse tensile strength (MD) was 4 To 6 MPa.
- TD longitudinal tensile strength
- MD transverse tensile strength
- the food container according to the present invention may exhibit a tensile strength of the above range by forming a polyethylene terephthalate foam sheet in the inner layer of the container and a coating layer made of polyethylene terephthalate glycol resin on the outer layer of the container, Therefore, it can be seen that there is an advantage that does not easily deform even when applying a physical force.
- the food container according to the present invention may have an elongation measured according to ASTM D 638 in the range of 3 to 10% in the longitudinal direction (TD) and in the range of 5 to 20% in the transverse direction (MD).
- the elongation rate when measured using a universal testing machine (Model 3367, Instron), it may be in the range of 4 to 7% in the longitudinal direction (TD) and 7 to 15% in the transverse direction (MD).
- the food container according to the present invention can satisfy the longitudinal and transverse elongation of the above range by forming a polyethylene terephthalate foam sheet in the inner layer of the container and forming a coating layer of polyethylene terephthalate glycol resin on the outer layer of the container. It can thus exhibit excellent moldability.
- the present invention provides a method for producing the food container.
- the manufacturing method of the food container according to the present invention comprises the steps of: forming a resin coating layer comprising a repeating unit of Formula 1 on one side or both sides of the foam sheet; And it provides a method for producing a food container comprising thermoforming a resin-coated foam sheet comprising a repeating unit of formula (1).
- n and n represent the mole fraction of a repeating unit, and are each in the range of 1-100.
- Thermoforming temperature in the present invention may be 140 to 200 °C. Specifically, the thermoforming temperature may be 140 to 180 ° C, 140 to 170 ° C, 140 to 160 ° C, 140 to 150 ° C or 140 ° C.
- the present invention can thermoform the food container at a temperature in the above range can significantly improve the moldability without deteriorating the strength and physical properties of the food container.
- the glass transition temperature (Tg) of the resin constituting the foam sheet may be 70 to 90 °C, 75 to 85 °C or 80 to 90 °C.
- the glass transition temperature of the resin including the repeating unit of Formula 1 may be 65 to 95 °C, 70 to 90 °C, 75 to 85 °C or 80 to 90 °C.
- Foam sheet according to the present invention can produce a food container excellent in heat resistance by satisfying the glass transition temperature of the above range.
- the foam sheet may be a foam layer, the average cell size of the foam layer, 110 to 450 ⁇ m, 130 to 430 ⁇ m, 150 to 410 ⁇ m, 180 to 400 ⁇ m, 200 to 380 ⁇ m, 220 to 360 ⁇ m or 250 to 350 ⁇ m.
- the average cell size of the foam layer is in the above range, the thermal barrier property and the compressive strength of the food container is improved, it is easy to form a deep inside containing the contents during the molding of the food container. If the cell size is larger than 500 ⁇ m, it is difficult to process the container deeply when manufacturing the food container by thermoforming, and the compressive strength may be lowered. When the cell size is smaller than the above range, the compressive strength and thermal barrier property Can be degraded.
- the resin including the repeating unit of Formula 1 may be, for example, a polyethylene terephthalate glycol (hereinafter referred to as PETG) resin.
- PETG resin may have a structure in which cyclohexanedimethanol (CHDM) is copolymerized.
- CHDM cyclohexanedimethanol
- the cyclohexane dimethanol serves to prevent the crystallization of the resin
- PETG copolymerized with cyclohexane dimethanol will have an amorphous region. Therefore, the PETG resin is easy to maintain the viscosity to give the adhesion of the foam layer and the resin layer.
- the manufacturing method of the food container according to the present invention is produced by coating a PETG resin having an amorphous region and on one or both sides of the foam sheet of the resin having a glass transition temperature of the above range, excellent moldability, heat resistance and printability Food containers can be prepared.
- the foam sheet according to the present invention may be 90% or more cells closed cell (DIN ISO4590). This may mean that the measured value according to DIN ISO4590 of the foam sheet is 90% or more of the cells are closed cells.
- the closed cell of the foam sheet may be 90 to 100% or 95 to 100%.
- Foam sheet according to the present invention by having a closed cell in the above range, it is possible to implement excellent heat resistance, heat insulating properties and insulating properties. Through this, the food container including the foam sheet can implement excellent heat resistance, heat insulating properties and thermal insulation properties.
- the number of cells of the polyester foam sheet may include 1 to 30 cells, 3 to 25 cells, or 3 to 20 cells per mm.
- Method for producing a food container comprises the step of producing a foam sheet by extruding a mixture comprising a polyethylene terephthalate resin composition, wherein the extrusion temperature of the resin is 50 to 100 °C, 55 to 95 °C or 60 It may range from to 90 °C, by performing the foaming at a relatively low temperature of the above range, it is possible to facilitate the maintenance of the viscosity of the resin.
- extrusion foaming by heating and melting the resin, and by continuously extruding and foaming the resin melt, it is possible to simplify the process step, mass production, cracking between the beads during the bead foaming And, by preventing the granular fracture phenomenon, it can implement a better tensile strength and compressive strength.
- PET resin polyethylene terephthalate (PET) resin was first dried at 130 ° C. to remove moisture, and the PET resin from which the moisture was removed in the first extruder and the PET was removed. Based on 100 parts by weight of the resin, 1 part by weight of pyromellitic diehydride, 1 part by weight of talc and 0.1 part by weight of Irganox (IRG 1010) were mixed and heated to 280 ° C. to prepare a resin melt.
- IRG 1010 Irganox
- the foam sheet (2.5 mm) was manufactured using polystyrene (PS) resin instead of polyethylene terephthalate (PET) resin, except that a polystyrene coating layer (100 ⁇ m) was formed instead of the polyethylene terephthalate glycol (PETG) coating layer.
- PS polystyrene
- PET polyethylene terephthalate
- PETG polyethylene terephthalate glycol
- FIG 2 shows an SEM photograph showing the cell size of the foam sheet prepared according to Comparative Example 1. Looking at Figure 2 it can be seen that the cell is formed with an average size of 180 ⁇ m.
- a food container was manufactured in the same manner as in the example except that the average cell size of the foam sheet was controlled to about 900 ⁇ m.
- 3 shows a SEM photograph showing the cell size of the foam sheet prepared according to Comparative Example 2. Looking at Figure 3 it can be seen that the cell is formed with an average size of 900 ⁇ m.
- a commercially available sheet of polypropylene (PP rigid) thickness of 1 mm was purchased, and the food container was molded using the same mold as in Example.
- the food container according to the embodiment showed a result that satisfies the criterion published by the Food and Drug Administration because the volatiles were not detected, but in the case of the food container according to Comparative Example 1, styrene 412 A large amount remained in mg / kg, 4% acetic acid and water was not eluted in the food container according to the embodiment, 4% acetic acid and water was eluted in the food container according to Comparative Example 1. Therefore, it was confirmed that the food container according to the present application can significantly reduce the residual amount and the elution amount of harmful substances.
- Heat resistance measurement was measured the dimensional change rate according to the following equation (1).
- V 0 is the volume of the food container (mm 3 ) before exposure to 100 ° C
- V 1 is the volume of the food container (mm 3 ) after exposure to 100 ° C. for 20 minutes.
- the exposure to 100 °C using a hot air oven, the volume (mm 3 ) of the specimen before 100 °C exposure of the food container according to the Examples and Comparative Examples was 100 X 100 X 3 (width X height X height).
- the dimensional change rate is about 0%, it is possible to implement excellent heat resistance.
- the dimensional change rate is about 5.95%, which does not implement excellent heat resistance.
- Comparative Examples 1, 3 and 4 in a state in which 70% (v / v) of water at 100 ° C. was contained in the container, at 2 minutes, The temperature at any point inside the vessel and at any point outside the vessel was measured.
- the food container according to the embodiment showed a temperature difference between the inside and the outside of the container at 22 ° C., showing excellent thermal barrier properties, and exhibiting similar thermal barrier performance to Comparative Example 1, and the food containers according to Comparative Examples 3 and 4.
- the thermal barrier properties were significantly lower at 10 ° C and 4 ° C, respectively. Therefore, the food container according to the present invention has a good thermal barrier properties by manufacturing a coating of PETG resin layer on one surface of the foam sheet control the cell size to a certain range, it was confirmed that it can implement excellent thermal insulation properties.
- Water vapor permeability and oxygen permeability of the food containers prepared in Examples and Comparative Example 1 were measured. Methods of measuring water vapor permeability and oxygen permeability are described below, and the results are shown in Table 4 below.
- Measuring range 0.05 ⁇ 100 g / m 2
- Tester OX-TRAN 702 (MOCON, USA)
- the water vapor transmission rate of the first measurement and the second measurement showed low results of 8.23 g / m 2 ⁇ day and 8.69 g / m 2 ⁇ day, but the comparison In the case of the food container according to Example 1, the water vapor permeability was 16.60 g / m 2 ⁇ day and 17.30 g / m 2 ⁇ day in both the first measurement and the second measurement, which showed a higher result than the food container according to the example.
- the compressive strength, tensile strength, elongation rate and puncture strength of the food containers prepared in Examples and Comparative Example 1 were measured.
- the instrument used for the measurement was a universal testing machine (Model 3367, Instron), and the respective measurement conditions are described below, and the results are shown in Table 5 below.
- the compressive strength was measured by measuring the maximum load measured when the load was applied at a speed of 100 mm / min in the vertical direction with respect to the food container.
- Tensile strength was measured according to ASTM D 638, and the test speed was 5 mm / min.
- Elongation was measured according to ASTM D 638.
- the puncture strength was measured according to ASTM D 5748, and the test speed was 6 mm / min.
- the food container according to the present invention can improve the heat resistance by forming a PETG coating layer on the outer layer of the polyethylene terephthalate foam sheet to improve the heat resistance, and improve the compressive strength, tensile strength, elongation and puncture strength.
- a PETG coating layer on the outer layer of the polyethylene terephthalate foam sheet to improve the heat resistance, and improve the compressive strength, tensile strength, elongation and puncture strength.
- the PET resin was measured the melting point value of about 251.17 °C, the glass transition temperature was measured to about 81.65 °C. On the other hand, the melting point of PETG resin was not measured, and the glass transition temperature was about 79.01 ° C., similar to that of PET resin (see FIG. 5). Accordingly, the PETG resin has amorphous properties, and it can be seen that the PETG resin coating layer can exhibit excellent adhesiveness, processability, and heat resistance when preparing a food container.
- the food container according to the present invention has a multi-layer structure in which a foam layer having a controlled cell size and a resin layer are laminated on one side or both sides of the foam layer, thereby improving compressive strength and less deformation due to physical force, and elongation rate. It can be provided in various sizes and shapes by improving the moldability, oxygen storage and water vapor transmission rate is low, it is easy to store food, and excellent heat resistance can prevent the shape change even in high temperature water, Significantly low elution amount of harmful substances is harmless to the human body, improves the strength, printability and formability of the food container, and at the same time has the effect of excellent thermal barrier properties to improve the heat insulating properties of food.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Emergency Medicine (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
구분 | 항목 | 단위 | 실시예 | 비교예 1 | ||
기준 | 분석결과 | 기준 | 분석결과 | |||
잔류 규격 | 휘발성 물질(스티렌, 톨루엔, 에틸벤젠, 이소프로필렌, n-프로필벤젠 | mg/kg | - | 불검출 | ≤5,000 | 412(스티렌) |
용출 규격 | 4% 초산 | mg/L | ≤30 | 불검출 | ≤30 | 7 |
물 | ≤30 | 불검출 | ≤30 | 10 | ||
n-헵탄 | ≤30 | 6 | ≤240 | 8 |
구분 | 치수 변화율 (%) |
실시예 | 0 |
비교예 1 | 5.95 |
구분 | 용기 외부 온도(℃) | 용기 내부 온도(℃) | 용기 내부와 외부의 온도차(℃) |
실시예 | 40 | 62 | 22 |
비교예 1 | 40 | 61 | 21 |
비교예 3 | 45 | 55 | 10 |
비교예 4 | 42 | 46 | 4 |
구분 | 시험항목 | 단위 | 측정 결과 | |
1차 | 2차 | |||
실시예 | 수증기 투과도 | g/m2·day | 8.23 | 8.69 |
산소 투과도 | cc/m2·day | 1336 | 893.1 | |
비교예 1 | 수증기 투과도 | g/m2·day | 16.60 | 17.30 |
산소 투과도 | cc/m2·day | 2591.2 | 1003.7 |
구분 | 압축강도(kgf/m3) | 인장강도(MPa) | 신장률(%) | 천공강도(N) | ||
TD | MD | TD | MD | |||
실시예 | 51.9 | 5.68 | 4.77 | 4.83 | 9.19 | 409.48 |
비교예 | 28 | 3.2 | 2.8 | 2.5 | 3.1 | 210 |
Tm(℃) | Tg(℃) | |
PET | 251.17 | 81.65 |
PETG | - | 79.01 |
Claims (13)
- 제 1 항에 있어서,상기 수지층을 형성하는 수지는 분자 내에 사이클로헥산디메탄올(CHDM)로부터 유도된 중합단위의 함량이 10몰% 이상인 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,상기 수지층을 형성하는 수지는 120 내지 270℃ 범위에서 융점(Tm) 값을 가지지 않는 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,식품용기는 2층 구조이며,용기의 내층은 발포층으로 형성되고,용기의 외층은 수지층으로 형성된 구조인 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,식품용기는,800W 전자레인지 내에서 5분 간 가열한 조건에서,스티렌 용출량이 50mg/kg 이하인 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,식품용기는,상온의 외기 조건에서, 용기 내부에 60 내지 100℃의 물을 70%(v/v) 담은 상태에서,2분 경과된 시점에서, 용기 내부와 외부의 온도차가 10℃ 이상인 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,발포층은 폴리에틸렌테레프탈레이트 수지의 발포시트이고,수지층은 폴리에틸렌테레프탈레이트 수지의 코팅층인 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,발포층의 밀도는 30 내지 400kgf/m3이고,수지층은 폴리에틸렌테레프탈레이트글리콜 수지의 코팅층인 것을 특징으로 하는 식품용기.
- 제 1 항에 있어서,식품용기를 형성하는 다층 구조의 평균 두께는 1 내지 5mm 범위이고,발포층과 수지층의 두께 비율은 10:0.1 내지 2 범위인 식품용기.
- 제 1 항에 있어서,식품용기는 하기 수학식 1로 표시되는 조건을 만족하는 것을 특징으로 하는 식품용기:[수학식 1]|V1-V0| / V0 x 100 < 5%상기 수학식 1에서,V0은 100℃에 노출 전 식품용기의 체적(mm3)이고,V1은 100℃에 20분 동안 노출 후 식품용기의 체적(mm3)이다.
- 제 1 항에 있어서,식품용기는, 수직방향으로 100mm/min의 속도로 하중을 가할 때 측정된 압축강도가 40kgf 이상인 것을 특징으로 하는 식품용기.
- 제 12 항에 있어서,열성형 온도는 140 내지 200℃ 범위인 식품용기의 제조방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/097,722 US11230418B2 (en) | 2016-09-30 | 2016-11-30 | Food container with reduced elution of hazardous substances |
JP2018556326A JP6826129B2 (ja) | 2016-09-30 | 2016-11-30 | 有害物質の溶出量が低減された食品容器 |
EP16917824.1A EP3438020B1 (en) | 2016-09-30 | 2016-11-30 | Food container with reduced elution of hazardous substances |
CN201680086119.2A CN109195882B (zh) | 2016-09-30 | 2016-11-30 | 具有减少的有害物质洗脱的食品容器 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2016-0127002 | 2016-09-30 | ||
KR10-2016-0127001 | 2016-09-30 | ||
KR1020160127001A KR101906866B1 (ko) | 2016-09-30 | 2016-09-30 | 유해 물질 용출량이 저감된 식품용기 |
KR1020160127002A KR101887918B1 (ko) | 2016-09-30 | 2016-09-30 | 열차단성이 향상된 식품용기 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018062623A1 true WO2018062623A1 (ko) | 2018-04-05 |
Family
ID=61759876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2016/013991 WO2018062623A1 (ko) | 2016-09-30 | 2016-11-30 | 유해 물질 용출량이 저감된 식품용기 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11230418B2 (ko) |
EP (1) | EP3438020B1 (ko) |
JP (1) | JP6826129B2 (ko) |
CN (1) | CN109195882B (ko) |
WO (1) | WO2018062623A1 (ko) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110869426A (zh) * | 2018-06-28 | 2020-03-06 | 株式会社Huvis | 食品包装容器及其制备方法 |
JP2020163849A (ja) * | 2019-03-26 | 2020-10-08 | 積水化成品工業株式会社 | 熱可塑性ポリエステル系樹脂積層発泡シート及び熱可塑性ポリエステル系樹脂積層発泡容器 |
JP2021513488A (ja) * | 2018-12-26 | 2021-05-27 | ヒューヴィス コーポレーションHuvis Corporation | リッドフィルムを含む包装容器およびその製造方法 |
JP2021079703A (ja) * | 2018-06-28 | 2021-05-27 | フュービス・コーポレイションHuvis Corporation | ガスバリアー層を含む成形体、これを含む包装容器および成形体の製造方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102443537B1 (ko) * | 2020-04-21 | 2022-09-16 | 주식회사 휴비스 | 카르복실 말단기의 당량이 제어된 폴리에스테르 발포시트 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3492273A (en) * | 1966-03-04 | 1970-01-27 | Du Pont | Regular sequential copolyesters |
JPH0621847Y2 (ja) * | 1990-07-10 | 1994-06-08 | 積水化成品工業株式会社 | 食品容器 |
JP2013212643A (ja) * | 2012-04-02 | 2013-10-17 | Act:Kk | 容器用多層シート、その製造方法、及び容器 |
KR20140038973A (ko) * | 2011-05-02 | 2014-03-31 | 사빅 이노베이티브 플라스틱스 아이피 비.브이. | 고순도 비스페놀 a 및 이로부터 제조된 폴리카보네이트 재료 |
KR101459275B1 (ko) * | 2013-12-30 | 2014-11-07 | 도레이케미칼 주식회사 | 공압출 방법을 이용한 식품 포장용 성형체의 제조방법 및 이의 식품 포장용 성형체 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2004300C (en) | 1988-12-01 | 1999-05-11 | Motoshige Hayashi | Process for producing polyester resin foam and polyester resin foam sheet |
JPH0698982B2 (ja) | 1989-09-25 | 1994-12-07 | 積水化成品工業株式会社 | 食品容器 |
JPH02251543A (ja) * | 1989-01-12 | 1990-10-09 | Sekisui Plastics Co Ltd | ポリエステル系樹脂発泡体の製造法 |
JPH083358A (ja) | 1994-06-23 | 1996-01-09 | Sekisui Plastics Co Ltd | 熱可塑性ポリエステル系樹脂発泡シート |
JP3005738U (ja) * | 1994-06-28 | 1995-01-10 | 積水化成品工業株式会社 | 断熱雨戸 |
JP3278796B2 (ja) | 1994-09-29 | 2002-04-30 | 積水化成品工業株式会社 | 熱可塑性ポリエステル樹脂発泡体の製造方法 |
JP2000043843A (ja) * | 1998-07-24 | 2000-02-15 | Goyo Paper Working Co Ltd | 断熱性紙容器 |
ES2238801T3 (es) | 1998-09-25 | 2005-09-01 | Cobarr S.P.A. | Laminas de espuma de resina de poliester. |
AU1685000A (en) * | 1998-12-11 | 2000-07-03 | Sekisui Plastics Co., Ltd. | Pre-expanded particles of crystalline aromatic polyester-based resin, and in-mold expanded product and expanded laminate using the same |
JP2000289173A (ja) | 1999-04-07 | 2000-10-17 | Jsp Corp | 食品保存用容器 |
JP2001315277A (ja) * | 2000-03-02 | 2001-11-13 | Sekisui Plastics Co Ltd | ポリプロピレン系樹脂積層発泡体とそれを用いた成形容器 |
JP2004034302A (ja) * | 2002-06-28 | 2004-02-05 | Idemitsu Unitech Co Ltd | 多層材、容器及び包装体 |
PL1742785T3 (pl) * | 2004-04-16 | 2009-08-31 | Advanced Plastics Tech Luxembourg S A | Preforma i sposoby wytwarzania preformy i butelki |
JP4616042B2 (ja) * | 2005-03-10 | 2011-01-19 | 積水化成品工業株式会社 | ポリプロピレン系樹脂積層発泡体及びその成形品 |
KR100955324B1 (ko) | 2008-01-28 | 2010-04-29 | 경상대학교산학협력단 | 폴리에틸렌테레프탈레이트 공중합체의 발포체 및 그제조방법 |
RU2010152350A (ru) * | 2008-05-22 | 2012-06-27 | Крайовак, Инк. (Us) | Газобарьерная и адсорбирующая жидкость емкость для упаковки пищевых продуктов |
JP3163094U (ja) | 2010-07-16 | 2010-09-30 | 竹内産業株式会社 | インスタント食品用容器 |
US20120187019A1 (en) * | 2011-01-22 | 2012-07-26 | Fina Technology, Inc. | Methods to Produce Semi-Durable Foamed Articles |
JP2013199532A (ja) | 2012-03-23 | 2013-10-03 | Sekisui Plastics Co Ltd | 樹脂発泡成形体、及び、樹脂発泡成形体の製造方法 |
EP3098056A4 (en) * | 2014-01-24 | 2017-09-06 | Toyo Seikan Group Holdings, Ltd. | Multilayer stretch blow molded container and multilayer preform |
CN204222303U (zh) * | 2014-09-05 | 2015-03-25 | 威玛精密化学科技股份有限公司 | 具有双层结构的塑胶容器 |
-
2016
- 2016-11-30 US US16/097,722 patent/US11230418B2/en active Active
- 2016-11-30 WO PCT/KR2016/013991 patent/WO2018062623A1/ko active Application Filing
- 2016-11-30 CN CN201680086119.2A patent/CN109195882B/zh active Active
- 2016-11-30 JP JP2018556326A patent/JP6826129B2/ja active Active
- 2016-11-30 EP EP16917824.1A patent/EP3438020B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3492273A (en) * | 1966-03-04 | 1970-01-27 | Du Pont | Regular sequential copolyesters |
JPH0621847Y2 (ja) * | 1990-07-10 | 1994-06-08 | 積水化成品工業株式会社 | 食品容器 |
KR20140038973A (ko) * | 2011-05-02 | 2014-03-31 | 사빅 이노베이티브 플라스틱스 아이피 비.브이. | 고순도 비스페놀 a 및 이로부터 제조된 폴리카보네이트 재료 |
JP2013212643A (ja) * | 2012-04-02 | 2013-10-17 | Act:Kk | 容器用多層シート、その製造方法、及び容器 |
KR101459275B1 (ko) * | 2013-12-30 | 2014-11-07 | 도레이케미칼 주식회사 | 공압출 방법을 이용한 식품 포장용 성형체의 제조방법 및 이의 식품 포장용 성형체 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110869426A (zh) * | 2018-06-28 | 2020-03-06 | 株式会社Huvis | 食品包装容器及其制备方法 |
JP2020528849A (ja) * | 2018-06-28 | 2020-10-01 | ヒューヴィス コーポレーションHuvis Corporation | 食品包装容器およびその製造方法 |
JP2021079703A (ja) * | 2018-06-28 | 2021-05-27 | フュービス・コーポレイションHuvis Corporation | ガスバリアー層を含む成形体、これを含む包装容器および成形体の製造方法 |
JP7110422B2 (ja) | 2018-06-28 | 2022-08-01 | フュービス・コーポレイション | ガスバリアー層を含む成形体、これを含む包装容器および成形体の製造方法 |
JP7213817B2 (ja) | 2018-06-28 | 2023-01-27 | ヒューヴィス コーポレーション | 食品包装容器およびその製造方法 |
JP2021513488A (ja) * | 2018-12-26 | 2021-05-27 | ヒューヴィス コーポレーションHuvis Corporation | リッドフィルムを含む包装容器およびその製造方法 |
JP7183284B2 (ja) | 2018-12-26 | 2022-12-05 | ヒューヴィス コーポレーション | リッドフィルムを含む包装容器およびその製造方法 |
JP2020163849A (ja) * | 2019-03-26 | 2020-10-08 | 積水化成品工業株式会社 | 熱可塑性ポリエステル系樹脂積層発泡シート及び熱可塑性ポリエステル系樹脂積層発泡容器 |
JP7352500B2 (ja) | 2019-03-26 | 2023-09-28 | 積水化成品工業株式会社 | 熱可塑性ポリエステル系樹脂積層発泡シート及び熱可塑性ポリエステル系樹脂積層発泡容器 |
Also Published As
Publication number | Publication date |
---|---|
CN109195882B (zh) | 2021-04-27 |
US20190382176A1 (en) | 2019-12-19 |
JP6826129B2 (ja) | 2021-02-03 |
CN109195882A (zh) | 2019-01-11 |
EP3438020B1 (en) | 2021-10-06 |
EP3438020A1 (en) | 2019-02-06 |
US11230418B2 (en) | 2022-01-25 |
EP3438020A4 (en) | 2019-11-27 |
JP2019514800A (ja) | 2019-06-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018062623A1 (ko) | 유해 물질 용출량이 저감된 식품용기 | |
WO2017026716A1 (ko) | 폴리에스테르 발포체와 폴리에스테르 수지층을 포함하는 다층 구조의 복합체 및 이의 용도 | |
WO2020004744A1 (ko) | 가스 베리어층을 포함하는 성형체, 이를 포함하는 포장용기 및 성형체의 제조방법 | |
KR101887918B1 (ko) | 열차단성이 향상된 식품용기 | |
TW201905049A (zh) | 雙軸配向聚酯膜 | |
WO2020096363A1 (ko) | 유전특성이 우수한 폴리이미드 복합 필름 및 이를 제조하는 방법 | |
WO2023080498A1 (ko) | 다층 배리어 필름, 이의 제조방법 및 이를 포함하는 포장재 | |
WO2019124948A1 (ko) | 내열성 및 가공성이 우수한 식품용기용 복합시트 및 이의 제조방법 | |
WO2020130610A1 (ko) | 가공성이 우수한 복합시트 및 이를 포함하는 포장용기의 제조방법 | |
WO2015005596A1 (ko) | 내충격성, 투명성 및 힌지 특성이 우수한 폴리프로필렌 수지 조성물 및 이의 제조방법 | |
WO2015183039A1 (ko) | 기체차단성을 갖는 레토르트 식품 포장용 적층 필름 | |
WO2020222550A1 (ko) | 인쇄 적성 및 단열성이 향상된 용기 및 이의 제조방법 | |
WO2020138571A1 (ko) | 스킨층을 포함하는 발포시트, 이의 제조방법 및 이를 포함하는 식품용기 | |
EP4319982A1 (en) | Polyethylene film having multi-layer structure and packaging material produced using the same | |
WO2020218684A1 (ko) | 무기입자를 포함하는 발포시트 및 이의 제조방법 | |
WO2020005000A1 (ko) | 식품 포장용기 및 이의 제조방법 | |
WO2020138643A1 (ko) | 리드필름을 포함하는 포장용기 및 이의 제조방법 | |
WO2018062816A1 (ko) | 폴리에스테르 다층필름 및 이의 제조방법 | |
WO2023080499A1 (ko) | 다층 배리어 필름, 이의 제조방법 및 이를 포함하는 포장재 | |
WO2020004748A1 (ko) | 탄산칼슘을 포함하는 발포시트, 이의 제조방법 및 이를 포함하는 식품용기 | |
WO2022039503A1 (ko) | 폴리에스테르 다층 필름 및 그의 제조방법 | |
WO2020130284A1 (ko) | 저융점 폴리에스테르 수지를 포함하는 폴리에스테르 복합체 및 이의 제조방법 | |
WO2023163327A1 (ko) | 다층 배리어 필름 및 이를 포함하는 포장재료 | |
WO2020130451A1 (ko) | 생분해성 수지 컴파운드 및 이의 제조방법 | |
WO2023163328A1 (ko) | 다층 배리어 필름 및 이를 포함하는 포장재료 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018556326 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016917824 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2016917824 Country of ref document: EP Effective date: 20181029 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16917824 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |