JP2017532261A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2017532261A5 JP2017532261A5 JP2017516911A JP2017516911A JP2017532261A5 JP 2017532261 A5 JP2017532261 A5 JP 2017532261A5 JP 2017516911 A JP2017516911 A JP 2017516911A JP 2017516911 A JP2017516911 A JP 2017516911A JP 2017532261 A5 JP2017532261 A5 JP 2017532261A5
- Authority
- JP
- Japan
- Prior art keywords
- layer
- copolymer
- film
- food
- multilayer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 235000013305 food Nutrition 0.000 claims description 42
- 239000010410 layer Substances 0.000 claims description 34
- 239000005977 Ethylene Substances 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 11
- 239000004952 Polyamide Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 9
- 229920000554 ionomer Polymers 0.000 claims description 8
- 229920005638 polyethylene monopolymer Polymers 0.000 claims description 7
- 229920001038 ethylene copolymer Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 5
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 4
- 239000004713 Cyclic olefin copolymer Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 230000002040 relaxant effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 229920006280 packaging film Polymers 0.000 claims description 2
- 239000012785 packaging film Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 2
- 229920000299 Nylon 12 Polymers 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 2
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 101000576320 Homo sapiens Max-binding protein MNT Proteins 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 229920000577 Nylon 6/66 Polymers 0.000 description 1
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 229920006020 amorphous polyamide Polymers 0.000 description 1
- TZYHIGCKINZLPD-UHFFFAOYSA-N azepan-2-one;hexane-1,6-diamine;hexanedioic acid Chemical compound NCCCCCCN.O=C1CCCCCN1.OC(=O)CCCCC(O)=O TZYHIGCKINZLPD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 1
- 229920006114 semi-crystalline semi-aromatic polyamide Polymers 0.000 description 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462059211P | 2014-10-03 | 2014-10-03 | |
| US62/059,211 | 2014-10-03 | ||
| PCT/US2015/052818 WO2016053956A1 (en) | 2014-10-03 | 2015-09-29 | Multilayer food casing or food film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017532261A JP2017532261A (ja) | 2017-11-02 |
| JP2017532261A5 true JP2017532261A5 (enExample) | 2018-11-15 |
Family
ID=54291693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017516911A Pending JP2017532261A (ja) | 2014-10-03 | 2015-09-29 | 多層食品ケーシングまたは食品フィルム |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180264787A1 (enExample) |
| EP (1) | EP3200996A1 (enExample) |
| JP (1) | JP2017532261A (enExample) |
| CN (1) | CN106794683A (enExample) |
| WO (1) | WO2016053956A1 (enExample) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012378149B2 (en) | 2011-12-21 | 2016-10-20 | The Regents Of The University Of California | Interconnected corrugated carbon-based network |
| KR102231070B1 (ko) | 2012-03-05 | 2021-03-23 | 더 리전트 오브 더 유니버시티 오브 캘리포니아 | 상호 연결된 파형 카본-기반 네트워크로 만들어진 전극을 갖는 커패시터 |
| JP2017522725A (ja) | 2014-06-16 | 2017-08-10 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | ハイブリッド電気化学セル |
| JP2018501644A (ja) | 2014-11-18 | 2018-01-18 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | 多孔性の相互接続された波状カーボンベースネットワーク(iccn)複合材料 |
| US20160304332A1 (en) * | 2015-04-17 | 2016-10-20 | Ds Smith Plastics Limited | Multilayer film used with flexible packaging |
| IL259749B (en) | 2015-12-22 | 2022-08-01 | Univ California | Cellular graphene films |
| CN108475590B (zh) | 2016-01-22 | 2021-01-26 | 加利福尼亚大学董事会 | 高电压装置 |
| CA3018568A1 (en) | 2016-03-23 | 2017-09-28 | The Regents Of The University Of California | Devices and methods for high voltage and solar applications |
| WO2018044786A1 (en) | 2016-08-31 | 2018-03-08 | The Regents Of The University Of California | Devices comprising carbon-based material and fabrication thereof |
| US11702262B2 (en) | 2016-12-27 | 2023-07-18 | Kimpai Lamitube Co., Ltd. | Polyester laminate tube for container |
| JP6826894B2 (ja) | 2017-01-19 | 2021-02-10 | 株式会社クレハ | 熱収縮性多層フィルム |
| EP3652797B1 (en) | 2017-07-14 | 2023-11-22 | The Regents of The University of California | Simple route to highly conductive porous graphene from carbon nanodots for supercapacitor applications |
| DE102017212144A1 (de) * | 2017-07-14 | 2019-01-17 | Sig Technology Ag | Flächenförmiger Verbund, insbesondere zum Herstellen formstabiler Nahrungsmittelbehälter, mit einer ersten und einer weiteren Haftvermittlerschicht, die jeweils einen Acrylatanteil aufweisen |
| CN107804047B (zh) * | 2017-09-19 | 2019-11-08 | 江阴申隆包装材料有限公司 | 一种易裁切高阻隔防雾盖膜及其制造方法 |
| CN108032575B (zh) * | 2017-12-06 | 2019-07-16 | 广州融盛包装材料有限公司 | 一种高阻隔包装、制袋用膜 |
| EP3906155A4 (en) * | 2018-12-31 | 2022-08-03 | Bemis Company, Inc. | PACKAGING FILM WITH THERMOPLASTIC POLYURETHANE ELASTOMER |
| GB201901494D0 (en) | 2019-02-04 | 2019-03-27 | Innospec Ltd | Polymeric materials |
| GB201901503D0 (en) | 2019-02-04 | 2019-03-27 | Innospec Ltd | Chemical reactions |
| GB201901496D0 (en) | 2019-02-04 | 2019-03-27 | Innospec Ltd | Chemical reactions |
| GB201901499D0 (en) | 2019-02-04 | 2019-03-27 | Innospec Ltd | Polymeric materials |
| WO2020179616A1 (ja) * | 2019-03-01 | 2020-09-10 | 三井・ダウポリケミカル株式会社 | 積層体および包装容器 |
| JP2019089351A (ja) * | 2019-03-05 | 2019-06-13 | グンゼ株式会社 | ポリアミド系多層フィルム |
| DE102019111460A1 (de) * | 2019-05-03 | 2020-11-05 | Kuhne Anlagenbau Gmbh | Verfahren zur Herstellung einer mehrschichtigen Verbundfolie, mehrschichtige Verbundfolie und deren Verwendung |
| DE102019111440A1 (de) * | 2019-05-03 | 2020-11-05 | Kuhne Anlagenbau Gmbh | Verfahren zur Herstellung einer mehrschichtigen Verbundfolie, mehrschichtige Verbundfolie und deren Verwendung |
| KR102621456B1 (ko) | 2019-05-03 | 2024-01-05 | 퀴흐네 안라겐바우 게엠바하 | 다층 복합재 필름을 제조하는 방법, 다층 복합재 필름 및 그 용도 |
| DE102019111454A1 (de) * | 2019-05-03 | 2020-11-05 | Kuhne Anlagenbau Gmbh | Verfahren zur Herstellung einer mehrschichtigen Verbundfolie, mehrschichtige Verbundfolie und deren Verwendung |
| DE102019111458A1 (de) * | 2019-05-03 | 2020-11-05 | Kuhne Anlagenbau Gmbh | Verfahren zur Herstellung einer mehrschichtigen Verbundfolie, mehrschichtige Verbundfolie und deren Verwendung |
| RU2715203C1 (ru) * | 2019-06-17 | 2020-02-25 | Общество с ограниченной ответственностью "Научно-производственное предприятие "Тасма" (ООО "НПП "Тасма") | Многослойная рукавная или плоская оболочка или пленка |
| AR119924A1 (es) * | 2019-09-30 | 2022-01-19 | Dow Global Technologies Llc | Película multicapa flexible |
| DE102020111879A1 (de) | 2020-04-30 | 2021-11-04 | Kuhne Anlagenbau Gmbh | Verfahren zur Herstellung einer mehrschichtigen Verbundfolie, mehrschichtige Verbundfolie und deren Verwendung |
| US11124642B1 (en) | 2021-03-18 | 2021-09-21 | Chang Chun Petrochemical Co., Ltd. | Ethylene-vinyl alcohol copolymer composition with improved oxygen barrier properties |
| CN113352717A (zh) * | 2021-06-10 | 2021-09-07 | 南通环球塑料工程有限公司 | 一种适合流动包装生产线的多层收缩膜及其制造方法 |
| JP2023015831A (ja) * | 2021-07-20 | 2023-02-01 | 住友ベークライト株式会社 | 多層フィルム及び包装体 |
| JP2023015832A (ja) * | 2021-07-20 | 2023-02-01 | 住友ベークライト株式会社 | 多層フィルム及び包装体 |
Family Cites Families (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2241322A (en) | 1938-09-30 | 1941-05-06 | Du Pont | Process for preparing polyamides from cyclic amides |
| US2312966A (en) | 1940-04-01 | 1943-03-02 | Du Pont | Polymeric material |
| US2512606A (en) | 1945-09-12 | 1950-06-27 | Du Pont | Polyamides and method for obtaining same |
| US3350372A (en) | 1960-08-22 | 1967-10-31 | Gulf Oil Corp | Ethylene/acrylate ester copolymers |
| BE627537A (enExample) | 1961-08-31 | 1900-01-01 | ||
| IL24111A (en) | 1964-08-24 | 1969-02-27 | Du Pont | Linear polyamides |
| US3756996A (en) | 1964-10-02 | 1973-09-04 | Nat Distillers Chem Corp | Process for the production of ethylene polymers |
| US3484405A (en) | 1965-12-13 | 1969-12-16 | Polymer Corp | Solid adhesive polymer compositions |
| US4174358A (en) | 1975-05-23 | 1979-11-13 | E. I. Du Pont De Nemours And Company | Tough thermoplastic nylon compositions |
| CA1308012C (en) * | 1986-01-17 | 1992-09-29 | Robert Wayne Thies | Multilayered polyolefin high shrinkage, low-shrink force shrink film |
| EP0561428B1 (en) | 1986-02-28 | 1998-04-29 | W.R. Grace & Co.-Conn. | Oxygen barrier packaging film |
| US5053259A (en) | 1988-08-23 | 1991-10-01 | Viskase Corporation | Amorphous nylon copolymer and copolyamide films and blends |
| US5053457A (en) | 1989-06-13 | 1991-10-01 | E. I. Du Pont De Nemours And Company | Coextrudable adhesives and products therefrom |
| US5028674A (en) | 1990-06-06 | 1991-07-02 | E. I. Du Pont De Nemours And Company | Methanol copolymerization of ethylene |
| US5217812A (en) | 1990-06-25 | 1993-06-08 | E. I. Du Pont De Nemours And Company | Extrudable and primerless adhesives and products therefrom |
| JP2552946B2 (ja) | 1990-08-20 | 1996-11-13 | 呉羽化学工業株式会社 | 2軸延伸積層フィルム |
| AU664194B2 (en) | 1991-08-12 | 1995-11-09 | E.I. Du Pont De Nemours And Company | Blow moldable thermoplastic polyamide composition |
| US5278272A (en) | 1991-10-15 | 1994-01-11 | The Dow Chemical Company | Elastic substantialy linear olefin polymers |
| US5866214A (en) * | 1995-07-28 | 1999-02-02 | W. R. Grace & Co.-Conn. | Film backseamed casings therefrom, and packaged product using same |
| DE69606811T3 (de) * | 1995-07-31 | 2012-01-12 | Kureha Corp. | Mehrschichtfolie |
| KR100222141B1 (ko) | 1996-01-11 | 1999-10-01 | 사또 아끼오 | 접착성 폴리에틸렌 조성물 및 이를 사용한 다층 적층필름 |
| US6545091B1 (en) | 1996-01-25 | 2003-04-08 | E. I. Du Pont De Nemours & Co. | Adhesive compositions based on blends of grafted metallocene catalyzed and non-grafted conventional polyethylenes |
| DE69739294D1 (de) * | 1996-05-28 | 2009-04-23 | Kureha Corp | Heissschrumpfbare Mehrschichtfolie |
| US5843502A (en) * | 1996-06-26 | 1998-12-01 | Cryovac, Inc. | Package having cooked food product packaged in film having food adhesion layer containing high vicat softening point olefin/acrylic acid copolymer |
| NZ504302A (en) | 1997-11-26 | 2002-09-27 | Cryovac Inc | Multilayer heat-shrinkable thermoplastic film having an outer heat sealable layer of a heat sealable polyolefin and an outer abuse layer of a polyamide |
| US6166142A (en) | 1998-01-27 | 2000-12-26 | E. I. Du Pont De Nemours And Company | Adhesive compositions based on blends of grafted metallocene catalyzed and polar ethylene copolymers |
| DE19823162A1 (de) * | 1998-05-23 | 1999-11-25 | Hoechst Trespaphan Gmbh | Polyolefinfolie, Verfahren zu ihrer Herstellung und ihre Verwendung |
| WO2001009199A1 (en) | 1999-07-28 | 2001-02-08 | E.I. Du Pont De Nemours And Company | High melt swell polymer |
| US6500888B2 (en) | 2000-12-27 | 2002-12-31 | E. I. Du Pont De Nemours And Company | Surface treatment of ethylene based polymer pellets to improve blocking resistance |
| DE10227580A1 (de) | 2002-06-20 | 2004-01-08 | Kuhne Anlagenbau Gmbh | Mehrschichtige flächen- oder schlauchförmige Nahrungsmittelhülle oder -folie |
| DE10254172B4 (de) | 2002-11-20 | 2005-07-21 | Kuhne Anlagenbau Gmbh | Mehrschichtige, flächen- oder schlauchförmige Nahrungsmittelhülle oder -folie |
| US20040173491A1 (en) * | 2003-03-07 | 2004-09-09 | Buelow Duane H. | Packages made from thermoplastic multilayer barrier structures |
| RU2336174C2 (ru) | 2003-07-30 | 2008-10-20 | Криовак, Инк. | Многослойная ориентированная высокомодульная пленка |
| US7896634B2 (en) * | 2004-03-29 | 2011-03-01 | Fujifilm Corporation | Film stretching apparatus |
| US20080095960A1 (en) * | 2004-12-10 | 2008-04-24 | Curwood, Inc. | Multilayer Packaging Barrier Films Comprising Ethylene Vinyl Alcohol Copolymers |
| JP4861673B2 (ja) * | 2005-10-06 | 2012-01-25 | 三菱樹脂株式会社 | 直線カット性ポリアミド系熱収縮積層フィルム及びその製造方法 |
| US20070172614A1 (en) | 2005-12-30 | 2007-07-26 | I-Hwa Lee | Heat shrinkable multilayer film and tube with improved adhesion after orientation |
| WO2007095667A1 (en) * | 2006-02-20 | 2007-08-30 | Huhtamaki New Zealand Limited | Improved product packaging |
| FR2897795B1 (fr) | 2006-02-28 | 2010-07-30 | Linpac Plastics Pontivy | Procede de fabrication d'un film multicouche |
| DE102006036844B3 (de) | 2006-08-07 | 2008-01-03 | Kuhne Anlagenbau Gmbh | Mehrschichtige flächen- oder schlauchförmige Nahrungsmittelhülle oder -folie |
| DE102006062787B4 (de) * | 2006-09-29 | 2009-12-31 | Kuhne Anlagenbau Gmbh | Mehrschichtige flächen- oder schlauchförmige Nahrungsmittelhülle oder -folie |
| JP4846613B2 (ja) * | 2007-02-05 | 2011-12-28 | 旭化成ケミカルズ株式会社 | 多層フィルム |
| KR101468937B1 (ko) * | 2008-09-05 | 2014-12-11 | 코오롱인더스트리 주식회사 | 폴리에스테르 필름 및 이의 제조방법 |
| TWI438264B (zh) * | 2009-11-02 | 2014-05-21 | Hosokawa Yoko Kk | 具有氧吸收功能的塑膠質薄膜及輸液袋 |
| ES2864849T3 (es) * | 2011-07-27 | 2021-10-14 | Performance Mat Na Inc | Películas multicapa para envases que se pueden volver a cerrar |
| CN108189498B (zh) * | 2012-01-31 | 2020-06-23 | 纳幕尔杜邦公司 | 包含环烯烃共聚物的多层膜 |
| US20130323488A1 (en) * | 2012-05-31 | 2013-12-05 | Prolamina Midwest Corporation | Packaging Film and Method of Manufacture |
-
2015
- 2015-09-29 CN CN201580054456.9A patent/CN106794683A/zh active Pending
- 2015-09-29 US US15/516,558 patent/US20180264787A1/en not_active Abandoned
- 2015-09-29 EP EP15778528.8A patent/EP3200996A1/en not_active Withdrawn
- 2015-09-29 JP JP2017516911A patent/JP2017532261A/ja active Pending
- 2015-09-29 WO PCT/US2015/052818 patent/WO2016053956A1/en not_active Ceased
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2017532261A5 (enExample) | ||
| ES2663514T3 (es) | Películas termocontraíbles de barrera de multicapa PVDC | |
| US10967615B2 (en) | Multilayer barrier film | |
| JP2015512801A5 (enExample) | ||
| JP2017532261A (ja) | 多層食品ケーシングまたは食品フィルム | |
| JP2012519604A5 (enExample) | ||
| AU2008207514B2 (en) | Gas-barrier shrink films for use in deep-drawing applications | |
| CN201105860Y (zh) | 一种新型生鲜肉类热收缩保鲜袋膜 | |
| JP2013504205A5 (enExample) | ||
| JP2004501799A (ja) | 高防湿フィルム | |
| WO2011068148A1 (ja) | 真空断熱材用フィルム及び真空断熱材 | |
| JP2007510558A5 (enExample) | ||
| JP2014532573A5 (enExample) | ||
| HU213854B (en) | Heat-treatable bag, package manufacturable under hot circumstances, and use of propylene polimers for producing a heatinsulating layer of a bag | |
| JP6318737B2 (ja) | ボイル処理用食品包装フィルム、深絞り包装体用底材、および深絞り包装体 | |
| JP5599637B2 (ja) | フィルム、シート及びこれらの製造方法、並びに、ブリスター成形体、積層体 | |
| JP5604021B1 (ja) | 成形体及びその製造方法 | |
| JPS625060B2 (enExample) | ||
| JP3804992B2 (ja) | 成形用積層シートの製造方法 | |
| JP2001246694A (ja) | 長さ方向に延伸された、真空蒸気コ−ティングした包装フィルム | |
| WO2019056413A1 (zh) | 一种大容量液体自动灌装机用高阻隔包装膜及其制造方法 | |
| JP4719362B2 (ja) | 防曇性に優れたシーラントフィルム | |
| JP7189673B2 (ja) | フィルム、包装体、フィルム巻回体 | |
| JP2017538605A5 (enExample) | ||
| KR20250011462A (ko) | 산소차단성이 우수한 포장재용 적층필름 및 이의 제조방법 |