CN103608177B - 多层双向拉伸聚合物薄膜 - Google Patents

多层双向拉伸聚合物薄膜 Download PDF

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Publication number
CN103608177B
CN103608177B CN201280030078.7A CN201280030078A CN103608177B CN 103608177 B CN103608177 B CN 103608177B CN 201280030078 A CN201280030078 A CN 201280030078A CN 103608177 B CN103608177 B CN 103608177B
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China
Prior art keywords
propylene copolymer
layer
polymer film
biaxially oriented
alpha
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CN201280030078.7A
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Chinese (zh)
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CN103608177A (zh
Inventor
卢吉·雷斯科尼
尼娜·阿克曼斯
约阿希姆·菲比格
克里斯汀·赖歇尔特
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Borealis AS
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Borealis AS
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • C08L23/142—Copolymers of propene at least partially crystalline copolymers of propene with other olefins
    • 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
    • B32B2250/24—All layers being polymeric
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y10T428/24975—No layer or component greater than 5 mils thick
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable
    • Y10T428/2826—Synthetic resin or polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CN201280030078.7A 2011-06-27 2012-06-19 多层双向拉伸聚合物薄膜 Active CN103608177B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11171474.7A EP2540499B1 (en) 2011-06-27 2011-06-27 Multi-layer biaxially oriented polymer film
EP11171474.7 2011-06-27
PCT/EP2012/061730 WO2013000767A1 (en) 2011-06-27 2012-06-19 Multi-layer biaxially oriented polymer film

Publications (2)

Publication Number Publication Date
CN103608177A CN103608177A (zh) 2014-02-26
CN103608177B true CN103608177B (zh) 2015-06-24

Family

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Application Number Title Priority Date Filing Date
CN201280030078.7A Active CN103608177B (zh) 2011-06-27 2012-06-19 多层双向拉伸聚合物薄膜

Country Status (9)

Country Link
US (1) US10065398B2 (enExample)
EP (1) EP2540499B1 (enExample)
JP (1) JP5849153B2 (enExample)
KR (1) KR101581139B1 (enExample)
CN (1) CN103608177B (enExample)
ES (1) ES2462004T3 (enExample)
IN (1) IN2014DN00557A (enExample)
PT (1) PT2540499E (enExample)
WO (1) WO2013000767A1 (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6151438B2 (ja) * 2013-05-08 2017-06-21 ボレアリス・アクチェンゲゼルシャフトＢｏｒｅａｌｉｓ Ａｇ 多層ポリマーフィルム
CN105377915B (zh) * 2013-08-02 2018-11-16 北欧化工公司 用于制备含有高碳α-烯烃的丙烯共聚物的方法
EP2921519A1 (en) * 2014-03-17 2015-09-23 Dow Global Technologies LLC A multilayer structure
RU2723242C2 (ru) * 2015-12-11 2020-06-09 Базелл Полиолефин Италия С.Р.Л. Сополимеры пропиленовые
EP3464458B1 (en) * 2016-05-25 2023-11-22 Basell Poliolefine Italia S.r.l. Film comprising a polyolefin composition
US10661540B2 (en) * 2016-05-25 2020-05-26 Basell Poliolefine Italia S.R.L. Film for stretch hood applications
BR112019004628B1 (pt) * 2016-10-06 2022-11-29 Basell Poliolefine Italia S.R.L. Uso de uma folha ou filme compreendendo uma composição de poliolefina
JP6775696B2 (ja) * 2017-05-04 2020-10-28 バーゼル・ポリオレフィン・イタリア・ソチエタ・ア・レスポンサビリタ・リミタータ プロピレン系重合体組成物
EP3630486B1 (en) * 2017-05-23 2023-08-30 Basell Poliolefine Italia S.r.l. Multilayer film comprising a polyolefin composition
CN107226962B (zh) * 2017-06-09 2020-03-03 湖北远大天天明制药有限公司 一种多相丙烯共聚物在作为贮藏容器中的应用
ES2967217T3 (es) * 2017-07-07 2024-04-29 Basell Poliolefine Italia Srl Composición de poliolefina para fibras
CN116143962A (zh) * 2018-04-10 2023-05-23 北欧化工公司 具有改善的伽马辐照耐受性的双峰聚丙烯无规共聚物
EP3856799A1 (en) 2018-09-26 2021-08-04 Borealis AG Propylene copolymer with excellent optical properties
ES2949942T3 (es) * 2019-05-29 2023-10-04 Borealis Ag Copolímero aleatorio C2C3
TWI878292B (zh) * 2019-07-10 2025-04-01 日商東洋紡股份有限公司 雙軸配向聚丙烯系樹脂膜及使用該雙軸配向聚丙烯系樹脂膜之包裝體
CN114502357B (zh) * 2019-09-24 2025-03-25 Sabic环球技术有限责任公司 双轴向取向管
EP4069510A1 (en) 2019-12-05 2022-10-12 Borealis AG Multilayer film with improved properties
US20240158544A1 (en) * 2021-02-15 2024-05-16 Borealis Ag Coated article
PT4313590T (pt) * 2021-04-01 2025-10-31 Borealis Gmbh Filme multicamada à base de polipropileno biaxialmente orientado
CN113400610A (zh) * 2021-05-31 2021-09-17 天津新兴东方临近空间航天科技有限公司 一种含氟树脂的高性能氦气阻隔薄膜多层共挤薄膜工艺
JP2023079117A (ja) * 2021-11-26 2023-06-07 株式会社ユポ・コーポレーション 積層フィルム、コートフィルム及び粘着ラベル
KR20250075309A (ko) * 2023-11-21 2025-05-28 롯데케미칼 주식회사 이축배향 필름용 고밀도 폴리에틸렌 수지 조성물

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007142720A1 (en) * 2006-06-09 2007-12-13 Exxonmobil Chemical Patents Inc. Heat sealable films
EP1923407A1 (en) * 2006-11-14 2008-05-21 Borealis Technology Oy Biaxially oriented polypropylene film having improved processabilty
WO2010033276A2 (en) * 2008-07-10 2010-03-25 Exxonmobil Oil Corporation Multilayer films having improved sealing properties, their methods of manufacture, and articles made therefrom
EP2230273A1 (en) * 2009-03-09 2010-09-22 Total Petrochemicals Research Feluy Polypropylene composition in blown film

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI86867C (fi) 1990-12-28 1992-10-26 Neste Oy Flerstegsprocess foer framstaellning av polyeten
IT1254244B (it) * 1992-03-10 1995-09-14 Himont Inc Composizioni di copolimeri random del propene contenenti una alfa- olefina come comonomero
ZA96626B (en) * 1995-02-09 1996-08-15 Sastech Pty Ltd Copolymerization
FI111848B (fi) 1997-06-24 2003-09-30 Borealis Tech Oy Menetelmä ja laitteisto propeenin homo- ja kopolymeerien valmistamiseksi
WO1998058976A1 (en) 1997-06-24 1998-12-30 Borealis A/S Process for preparing propylene polymers
JP4204676B2 (ja) * 1998-02-23 2009-01-07 出光興産株式会社 プロピレン系樹脂並びにそれを用いたフィルム及び積層体
US7342078B2 (en) 1999-12-23 2008-03-11 Basell Polyolefine Gmbh Transition metal compound, ligand system, catalyst system and the use of the latter for polymerisation and copolymerisation of olefins
EP1323747A1 (en) 2001-12-19 2003-07-02 Borealis Technology Oy Production of olefin polymerisation catalysts
SG110037A1 (en) 2002-03-29 2005-04-28 Sumitomo Chemical Co Propylene-based resin composition and film made of the same
JP4250993B2 (ja) * 2002-03-29 2009-04-08 住友化学株式会社 ポリプロピレン系樹脂組成物及びフィルム
CN1898307A (zh) * 2003-12-24 2007-01-17 佩特罗基米卡库伊欧公司 密封层树脂组合物
ATE514485T1 (de) 2004-12-31 2011-07-15 Borealis Tech Oy Verfahren zur herstellung eines festen olefinpolymerisationskatalysators
AU2006276538A1 (en) * 2005-08-02 2007-02-08 Mitsui Chemicals, Inc. Polypropylene resin composition, film or sheet, stretched film obtained from such film or sheet, multilayer body, and stretched film obtained from such multilayer body
ES2348641T3 (es) * 2005-12-22 2010-12-10 Borealis Technology Oy Composicion de polipropileno que comprende un componente de copolimero de propileno.
US7812293B2 (en) * 2006-03-14 2010-10-12 Pliant Corporation Freezable/microwavable packaging films and venting packages
JP5094499B2 (ja) 2008-03-27 2012-12-12 三井化学株式会社 積層体およびその用途
EP2147939A1 (en) * 2008-07-22 2010-01-27 Borealis AG Polypropylene composition with improved optics for film and moulding applications
WO2010052263A1 (en) 2008-11-07 2010-05-14 Borealis Ag Solid catalyst composition
ATE552303T1 (de) * 2010-04-21 2012-04-15 Borealis Ag Propylen-/1-hexen copolymerzusammensetzung mit breitem verarbeitungsfenster für abdichtungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007142720A1 (en) * 2006-06-09 2007-12-13 Exxonmobil Chemical Patents Inc. Heat sealable films
EP1923407A1 (en) * 2006-11-14 2008-05-21 Borealis Technology Oy Biaxially oriented polypropylene film having improved processabilty
WO2010033276A2 (en) * 2008-07-10 2010-03-25 Exxonmobil Oil Corporation Multilayer films having improved sealing properties, their methods of manufacture, and articles made therefrom
EP2230273A1 (en) * 2009-03-09 2010-09-22 Total Petrochemicals Research Feluy Polypropylene composition in blown film

Also Published As

Publication number Publication date
JP5849153B2 (ja) 2016-01-27
WO2013000767A1 (en) 2013-01-03
ES2462004T3 (es) 2014-05-22
EP2540499A1 (en) 2013-01-02
JP2014520016A (ja) 2014-08-21
IN2014DN00557A (enExample) 2015-07-10
EP2540499B1 (en) 2014-02-26
KR101581139B1 (ko) 2015-12-30
KR20140027504A (ko) 2014-03-06
US20140220326A1 (en) 2014-08-07
CN103608177A (zh) 2014-02-26
US10065398B2 (en) 2018-09-04
PT2540499E (pt) 2014-03-06

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