WO1998003585A3 - Polyolefin films having increased gas permeability and method for making - Google Patents

Polyolefin films having increased gas permeability and method for making Download PDF

Info

Publication number
WO1998003585A3
WO1998003585A3 PCT/US1997/012985 US9712985W WO9803585A3 WO 1998003585 A3 WO1998003585 A3 WO 1998003585A3 US 9712985 W US9712985 W US 9712985W WO 9803585 A3 WO9803585 A3 WO 9803585A3
Authority
WO
WIPO (PCT)
Prior art keywords
films
polyethylenes
making
permeability
extrusion
Prior art date
Application number
PCT/US1997/012985
Other languages
French (fr)
Other versions
WO1998003585A2 (en
Inventor
Patrick Brant
Original Assignee
Exxon Chemical Patents Inc
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 Exxon Chemical Patents Inc filed Critical Exxon Chemical Patents Inc
Priority to EP97937010A priority Critical patent/EP0914372A2/en
Publication of WO1998003585A2 publication Critical patent/WO1998003585A2/en
Publication of WO1998003585A3 publication Critical patent/WO1998003585A3/en

Links

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
    • 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
    • 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
    • C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
    • 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
    • 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

Abstract

Films, made of polyethylenes, and articles made therefrom exhibit, for a given density, improved oxygen transmission. The polyethylenes are produced in a metallocene-catalyzed production process. The films may be made by a cast film process, and may be made under conditions that raise the birefringence and the oxygen transmission rate of the film, such as increasing strain rate decreasing melt temperature, increasing quench rates, or may be post-extrusion treated, for instance annealed or cold drawn. Combinations of both extrusion techniques and post-extrusion techniques may also be used. Polyethylenes utilized for making such films typically have a Composition Distribution Breadth Index above 50 %, a Mw/Mn below 3, and a Mz/Mw below 2. The permeability of the films so made will be 50 % or more above the permeability of the films based on similar resins based on previously used film formation techniques.
PCT/US1997/012985 1996-07-24 1997-07-24 Polyolefin films having increased gas permeability and method for making WO1998003585A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97937010A EP0914372A2 (en) 1996-07-24 1997-07-24 Polyolefin films having increased gas permeability and method for making

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/686,042 US5958319A (en) 1996-07-24 1996-07-24 Polyoelfin films having increased gas permeability and method for making
US08/686,042 1996-07-24

Publications (2)

Publication Number Publication Date
WO1998003585A2 WO1998003585A2 (en) 1998-01-29
WO1998003585A3 true WO1998003585A3 (en) 1998-03-26

Family

ID=24754659

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/012985 WO1998003585A2 (en) 1996-07-24 1997-07-24 Polyolefin films having increased gas permeability and method for making

Country Status (4)

Country Link
US (1) US5958319A (en)
EP (1) EP0914372A2 (en)
CA (1) CA2257125A1 (en)
WO (1) WO1998003585A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8110232B2 (en) 2000-09-26 2012-02-07 Apio, Inc. Packaging of bananas
US7601374B2 (en) 2000-09-26 2009-10-13 Landec Corporation Packaging of respiring biological materials
US6544596B2 (en) * 2000-11-29 2003-04-08 Pacific Northwest Coatings Method of coating a substrate using a thermosetting basecoat composition and a thermoplastic top coat composition
US6812314B2 (en) 2001-10-17 2004-11-02 University Of Florida Thermally responsive polymer materials and uses thereof
US6899249B2 (en) * 2001-10-26 2005-05-31 Fresh Advantage, Inc. Tray for storing and transporting products
CN100549077C (en) * 2003-10-01 2009-10-14 西巴特殊化学品控股有限公司 Additive agent mixture
US20070032581A1 (en) * 2003-10-01 2007-02-08 Klaus Stoll Additive mixtures
US20060233987A1 (en) * 2005-04-19 2006-10-19 Cryovac, Inc. Laminate having a high oxygen transmission rate
US20070092610A1 (en) * 2005-10-21 2007-04-26 Cryovac, Inc. Multicomponent package
US20070275196A1 (en) * 2006-05-25 2007-11-29 Cryovac, Inc. Multilayer Film Having High Oxygen Transmission and High Modulus
WO2013112636A1 (en) 2012-01-23 2013-08-01 Apio, Inc. Atmosphere control around respiring biological materials
US9291433B2 (en) * 2012-02-22 2016-03-22 Cryovac, Inc. Ballistic-resistant composite assembly
US10308776B2 (en) * 2012-12-18 2019-06-04 Exxonmobil Chemical Patents Inc. Polyethylene films and method of making same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025271A1 (en) * 1993-04-30 1994-11-10 Cypress Packaging, Inc. Packaging film, packages and methods for using them
WO1995026269A1 (en) * 1994-03-28 1995-10-05 W.R. Grace & Co.-Conn. Oxygen-permeable multilayer film, process for making same, packaging process using same, and packaged product comprising same
WO1997013640A1 (en) * 1995-10-13 1997-04-17 W.R. Grace & Co.-Conn. Oxygen-permeable multilayer film containing antifog agent, packaging process using same, and packaged product comprising same
WO1997028964A1 (en) * 1996-02-07 1997-08-14 Cryovac, Inc. High modulus oxygen-permeable multilayer film, packaging process using same, and packaged product comprising same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101950A (en) * 1965-10-19 1968-02-07 Grace W R & Co Improvements in the production of polyethylene film
US4588401A (en) * 1982-06-29 1986-05-13 E. I. Du Pont De Nemours And Company Platelet storage container
US4696857A (en) * 1985-12-13 1987-09-29 Allied Corporation Annealed thin walled polymer articles and method to anneal
US4876146A (en) * 1986-05-01 1989-10-24 Toyo Boseki Kabushiki Kaisha Anti-fogging multilayered film and bag produced therefrom for packaging vegetables and fruits
US5411805A (en) * 1986-10-22 1995-05-02 University Of Pittsburgh Of The Commonwealth System Of Higher Education Triaxially oriented polymer membrane
US5135785A (en) * 1990-08-13 1992-08-04 Colgate-Palmolive Company Pouch containers and films therefor
US5187917A (en) * 1990-10-29 1993-02-23 Cvp Systems, Inc. Automatic packaging apparatus and method and flexible pouch therefor
US5482771A (en) * 1992-09-18 1996-01-09 W. R. Grace & Co.-Conn. Moisutre barrier film
US5482770A (en) * 1992-11-03 1996-01-09 W. R. Grace & Co.-Conn. Highly oriented multilayer film
US5322726A (en) * 1993-03-19 1994-06-21 James River Paper Company, Inc. Coextruded film having high oxygen transmission rate
CN1126481A (en) * 1993-05-13 1996-07-10 埃克森化学专利公司 Polymerization catalyst systems, their production and use
US5614297A (en) * 1994-05-19 1997-03-25 Viskase Corporation Polyolefin stretch film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025271A1 (en) * 1993-04-30 1994-11-10 Cypress Packaging, Inc. Packaging film, packages and methods for using them
WO1995026269A1 (en) * 1994-03-28 1995-10-05 W.R. Grace & Co.-Conn. Oxygen-permeable multilayer film, process for making same, packaging process using same, and packaged product comprising same
WO1997013640A1 (en) * 1995-10-13 1997-04-17 W.R. Grace & Co.-Conn. Oxygen-permeable multilayer film containing antifog agent, packaging process using same, and packaged product comprising same
WO1997028964A1 (en) * 1996-02-07 1997-08-14 Cryovac, Inc. High modulus oxygen-permeable multilayer film, packaging process using same, and packaged product comprising same

Also Published As

Publication number Publication date
US5958319A (en) 1999-09-28
WO1998003585A2 (en) 1998-01-29
EP0914372A2 (en) 1999-05-12
CA2257125A1 (en) 1998-01-29

Similar Documents

Publication Publication Date Title
WO1998003585A3 (en) Polyolefin films having increased gas permeability and method for making
US4597920A (en) Shrink films of ethylene/α-olefin copolymers
DE69615723T2 (en) Ethylene alpha olefin copolymer and composition, films, composite materials, and electrically insulating materials containing the same
US4954391A (en) High density polyethylene type transparent film and process for production thereof
WO2007130553A3 (en) High-density polyethylene compositions, method of making the same, wire and cable jackets made therefrom, and method of making such wire and cable jackets
CA2498086A1 (en) Polyethylene compositions for injection molding
ATE226601T1 (en) Narrow POLYDISPERSITY ETHYLENE POLYMERS AND METHOD FOR THE PRODUCTION THEREOF
ATE191724T1 (en) METHOD FOR PRODUCING AN ETHYLENE POLYMER COMPOSITION, ETHYLENE POLYMER COMPOSITION AND USE THEREOF
IE820158L (en) Polymer of ethylene
CA2409742A1 (en) Process for producing a polymer composition
CA2138034A1 (en) Poly(3-Hydroxyalkanoates) and Process for the Production Thereof
CA2406523A1 (en) Heat-shrinkable polyester film roll and process for producing the same
MY117041A (en) Polyethylene composition
AU3655395A (en) New polypropylene composition with broad mwd
ATE226887T1 (en) BREATHABLE FILMS/NWF LAMINATES WITH HIGH WATER VAPOR PERMEABILITY MADE FROM MELTED EMBOSSED POLYOLEFIN/FILLER STARTING FILM.
EP0307195A3 (en) An improved polyethylene film and process for production thereof
AU2351597A (en) High-molecular-weight ethylene-propylene reactor blend with a broad molecular weight distribution
AU1809188A (en) Linear low density polyethylene cast film
TW249812B (en)
EP0204843A4 (en) Low temperature heat shrinkable film and process for producing the same.
IE39164B1 (en) Polymer materials
Zhou et al. The effect of blending high-density and linear low-density polyethylenes on slow crack growth
BE898897A (en) IMPROVED SHRINK FILMS IN LINEAR POLYETHYLENE AND PROCESS FOR MAKING SAME
IE781394L (en) Producing oriented polymer material
KR850005789A (en) Film with excellent mechanical properties and its manufacturing method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): CA DE GB

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): CA DE GB

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2257125

Country of ref document: CA

Ref document number: 2257125

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1997937010

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1997937010

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWW Wipo information: withdrawn in national office

Ref document number: 1997937010

Country of ref document: EP

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)