ATE484385T1 - Metallocene katalysierte enthaltende folien - Google Patents

Metallocene katalysierte enthaltende folien

Info

Publication number
ATE484385T1
ATE484385T1 AT96928120T AT96928120T ATE484385T1 AT E484385 T1 ATE484385 T1 AT E484385T1 AT 96928120 T AT96928120 T AT 96928120T AT 96928120 T AT96928120 T AT 96928120T AT E484385 T1 ATE484385 T1 AT E484385T1
Authority
AT
Austria
Prior art keywords
film containing
metallocene catalyzed
containing metallocene
polyethylenes
layers
Prior art date
Application number
AT96928120T
Other languages
English (en)
Inventor
Ashish Sukhadia
David Rohlfing
Jay Janzen
Lauriers Paul Des
Jim Byers
Louis Moore
M Welch
Syriac Palackal
William Whitte
William Coutant
Kiplan Cowan
Original Assignee
Chevron Phillips Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chevron Phillips Chemical Co filed Critical Chevron Phillips Chemical Co
Application granted granted Critical
Publication of ATE484385T1 publication Critical patent/ATE484385T1/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • 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
    • B32B27/06—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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L15/00—Compositions of rubber derivatives
    • C08L15/02—Rubber derivatives containing halogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00—Polymer mixtures characterised by way of preparation
    • C08L2314/04—Philipps catalyst
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00—Polymer mixtures characterised by way of preparation
    • C08L2314/06—Metallocene or single site catalysts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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 a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
    • Y10T428/31544—Addition polymer is perhalogenated
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
AT96928120T 1995-08-15 1996-08-08 Metallocene katalysierte enthaltende folien ATE484385T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51549895A 1995-08-15 1995-08-15
PCT/US1996/013000 WO1997006951A1 (en) 1995-08-15 1996-08-08 Films comprising metallocene catalyzed polyethylene

Publications (1)

Publication Number Publication Date
ATE484385T1 true ATE484385T1 (de) 2010-10-15

Family

ID=24051615

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96928120T ATE484385T1 (de) 1995-08-15 1996-08-08 Metallocene katalysierte enthaltende folien

Country Status (17)

Country Link
US (2) US6214469B1 (de)
EP (1) EP0853549B1 (de)
JP (1) JPH11510849A (de)
KR (1) KR100445272B1 (de)
CN (1) CN1070772C (de)
AT (1) ATE484385T1 (de)
AU (1) AU702109B2 (de)
BR (1) BR9610302A (de)
CA (1) CA2229172C (de)
DE (1) DE69638278D1 (de)
EA (1) EA000702B1 (de)
ES (1) ES2369694T3 (de)
HK (1) HK1016123A1 (de)
HU (1) HUP9901500A3 (de)
NO (1) NO980629L (de)
PL (1) PL325051A1 (de)
WO (1) WO1997006951A1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6221981B1 (en) 1998-09-14 2001-04-24 Phillips Petroleum Company Method for making and using a supported metallcene catalyst system
EP1157068A1 (de) * 1999-05-12 2001-11-28 Exxonmobil Oil Corporation Opake kunststoffilme und verfahren zur herstellung
US20030030174A1 (en) * 2000-07-01 2003-02-13 Gray Steven D. Linear high density polyethylene resins and films, methods and systems for making same
ATE421979T1 (de) * 2000-12-06 2009-02-15 Omlidon Technologies Llc Schmelzverarbeitbares, verschleissfestes polyethylen
CN1315919C (zh) * 2001-07-19 2007-05-16 尤尼威蒂恩技术有限责任公司 具有改进物理性能的聚乙烯薄膜
BR0211290A (pt) 2001-07-19 2004-09-14 Univation Tech Llc Compostos de catalisador de metaloceno de baixa incorporação de comonÈmero
RU2296135C2 (ru) * 2001-07-19 2007-03-27 Юнивейшн Технолоджиз, Ллс Смешанные металлоценовые каталитические системы, содержащие компонент, обеспечивающий плохое включение сомономера, и компонент, обеспечивающий хорошее включение сомономера
US6936675B2 (en) * 2001-07-19 2005-08-30 Univation Technologies, Llc High tear films from hafnocene catalyzed polyethylenes
EP1300240A1 (de) * 2001-10-02 2003-04-09 Atofina Research S.A. Glänzende Kunststoffbehälter mit hoher Beständigkeit gegen Rissbildung
KR20040041652A (ko) * 2001-10-03 2004-05-17 아토피나 리서치 폴리에틸렌의 폴리프로필렌상에의 부착
US7011892B2 (en) * 2004-01-29 2006-03-14 Equistar Chemicals, Lp Preparation of polyethylene films
JP4765277B2 (ja) * 2004-07-30 2011-09-07 東ソー株式会社 積層体
FR2899592B1 (fr) * 2006-04-05 2008-05-23 Arkema Sa Agent d'aide a l'extrusion a base de pvdf
GB0611331D0 (en) 2006-06-09 2006-07-19 Exxonmobil Chem Patents Inc Transparent coextruded films and processes for making such films
US7632907B2 (en) * 2006-06-28 2009-12-15 Chevron Phillips Chemical Company Lp Polyethylene film having improved mechanical and barrier properties and method of making same
EP1950241A1 (de) 2007-01-25 2008-07-30 Borealis Technology Oy Multimodale Polyethylenzusammensetzung
ES2624542T3 (es) * 2007-02-26 2017-07-14 Borealis Technology Oy Estructura de película multicapa
ATE491647T1 (de) 2007-08-10 2011-01-15 Borealis Tech Oy Artikel der eine polypropylenzusammensetzung beinhaltet
EP2067799A1 (de) 2007-12-05 2009-06-10 Borealis Technology OY Polymer
CN102164990A (zh) * 2008-09-26 2011-08-24 埃克森美孚石油公司 具有低密度和低雾度的薄膜
JP5694289B2 (ja) * 2009-03-31 2015-04-01 ダウ グローバル テクノロジーズ エルエルシー 不均一なエチレン／α−オレフィンインターポリマーから作製されるフィルム
US20110152472A1 (en) † 2009-12-17 2011-06-23 Gessner Mark A Operation of multi-reactor polyolefin manufacturing process
EP2354183B1 (de) 2010-01-29 2012-08-22 Borealis AG Formungszusammensetzung
PL2354184T3 (pl) 2010-01-29 2013-01-31 Borealis Ag Tłoczywo polietylenowe o ulepszonym stosunku odporność na pękanie /sztywność i ulepszone udarności
ITMI20110770A1 (it) * 2011-05-06 2012-11-07 Irplast Spa Film multistrato
US20130059140A1 (en) * 2011-09-02 2013-03-07 Chevron Phillips Chemical Company Lp Multilayer Polymer Films Having Improved Barrier Properties
US9089831B2 (en) 2011-10-25 2015-07-28 Chevron Phillips Chemical Company Lp System and method for blending polymers
US8993693B2 (en) 2012-03-23 2015-03-31 Formosa Plastics Corporation Ethylene copolymers with a novel composition distribution and processes for making the same
US20130288933A1 (en) 2012-04-30 2013-10-31 Chevron Phillips Chemical Company Lp Rheology Modifiers
CN102942733B (zh) * 2012-10-24 2014-12-10 中国石油化工股份有限公司 一种大中空容器吹塑材料及其制备方法
WO2014179103A1 (en) 2013-05-02 2014-11-06 Dow Global Technologies Llc A polyethylene composition and articles made therefrom
US11760851B2 (en) 2014-06-30 2023-09-19 Formosa Plastics Corporation, U.S.A. Cast film component layer exhibiting an outstanding cling property

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125547A (en) * 1961-02-09 1964-03-17 Extrudable composition consisting of
US5272326A (en) * 1988-06-21 1993-12-21 Kyodo Printing Co., Ltd. Optical card having light absorbing layer
US5272236A (en) * 1991-10-15 1993-12-21 The Dow Chemical Company Elastic substantially linear olefin polymers
US5436305A (en) * 1991-05-09 1995-07-25 Phillips Petroleum Company Organometallic fluorenyl compounds, preparation, and use
US5288531A (en) * 1991-08-09 1994-02-22 The Dow Chemical Company Pouch for packaging flowable materials
US5210167A (en) * 1991-11-25 1993-05-11 Mobil Oil Corporation LLDPE films with improved optical properties
US5225257A (en) * 1992-06-04 1993-07-06 Exxon Chemical Patents Inc Fluorine treatment of stretch/cling films
JP3472935B2 (ja) * 1994-02-18 2003-12-02 三井化学株式会社 エチレン系重合体およびその製造方法、エチレン重合用固体状チタン触媒成分ならびにエチレン重合用触媒
US5491019A (en) * 1994-03-28 1996-02-13 W. R. Grace & Co.-Conn. Oxygen-permeable multilayer film
US5527608A (en) * 1994-12-27 1996-06-18 Mobil Oil Corporation Oriented multilayer heat sealable packaging film capable of withstanding high altitude effects
AU4248797A (en) * 1996-10-31 1998-05-22 Mobil Oil Corporation Lldpe copolymers

Also Published As

Publication number Publication date
BR9610302A (pt) 1999-07-06
CN1193298A (zh) 1998-09-16
HUP9901500A2 (hu) 1999-08-30
DE69638278D1 (de) 2010-11-25
NO980629D0 (no) 1998-02-13
EP0853549A4 (de) 1999-08-18
HK1016123A1 (en) 1999-10-29
US6214469B1 (en) 2001-04-10
ES2369694T3 (es) 2011-12-05
AU6770896A (en) 1997-03-12
NO980629L (no) 1998-02-13
WO1997006951A1 (en) 1997-02-27
JPH11510849A (ja) 1999-09-21
EA199800206A1 (ru) 1998-10-29
MX9801244A (es) 1998-05-31
KR19990036430A (ko) 1999-05-25
EP0853549A1 (de) 1998-07-22
EA000702B1 (ru) 2000-02-28
US6355359B1 (en) 2002-03-12
AU702109B2 (en) 1999-02-11
KR100445272B1 (ko) 2005-07-12
PL325051A1 (en) 1998-07-06
EP0853549B1 (de) 2010-10-13
CN1070772C (zh) 2001-09-12
HUP9901500A3 (en) 1999-11-29
CA2229172A1 (en) 1997-02-27
CA2229172C (en) 2003-06-10

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