CA2438265A1 - Dual-ovenable heat-sealable packaging film - Google Patents

Dual-ovenable heat-sealable packaging film Download PDF

Info

Publication number
CA2438265A1
CA2438265A1 CA 2438265 CA2438265A CA2438265A1 CA 2438265 A1 CA2438265 A1 CA 2438265A1 CA 2438265 CA2438265 CA 2438265 CA 2438265 A CA2438265 A CA 2438265A CA 2438265 A1 CA2438265 A1 CA 2438265A1
Authority
CA
Canada
Prior art keywords
film
layer
heat
polyamides
nylon
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.)
Granted
Application number
CA 2438265
Other languages
French (fr)
Other versions
CA2438265C (en
Inventor
Arthur Leroy Berrier
Cynthia Louise Ebner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cryovac LLC
Original Assignee
Cryovac LLC
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 Cryovac LLC filed Critical Cryovac LLC
Publication of CA2438265A1 publication Critical patent/CA2438265A1/en
Application granted granted Critical
Publication of CA2438265C publication Critical patent/CA2438265C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B32B27/34—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
    • B32B27/06—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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3461—Flexible containers, e.g. bags, pouches, envelopes
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y10T428/1383—Vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers [continuous layer]
    • 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]
    • Y10T428/31725—Of polyamide
    • 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]
    • Y10T428/31725—Of polyamide
    • Y10T428/31728—Next to second layer of polyamide
    • 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]
    • Y10T428/31725—Of polyamide
    • Y10T428/31728—Next to second layer of polyamide
    • Y10T428/31732—At least one layer is nylon type

Abstract

A dual ovenable film having a first layer comprising one or more polyamides and a second layer comprising one or more polyamides. The first layer forms the first outer surface of the film. The second layer has a melting point of at least about 210°C. The film is capable of forming a water-containing package by providing two 4 inch by 6 inch sheets of the film each having four perimeter sides, placing the sheets in superimposed, coextensive arrangement having the first layers of the films in contact with each other, and heat sealing three perimeter sides of the sheets together using a 1/8-inch wide sealing bar at a temperature o~ 290°F, a dwell time of 0.5 seconds, and a sealing pressure of 40 psig to form an open pouch having heat seals along three of the four perimeter sides, The open pouch can be filled with 100 milliliters of distilled water at a temperature of 73°F and the fourth perimeter side of the sheet can be heat sealed together under the same conditions as used to seal the three perimeter sides to form a closed package having a heat seal along the fourth perimeter side and containing the water. The seal strength of the resulting heat seals is at least 1 pound/inch after the closed, water-containing package has been exposed to three hours in a conventional oven at 400°F (air temperature). The film may be used to form heat sealed pouches at "polyolefin-type" of heat seat conditions, yet the integrity of the heat seals may be maintained even when the heat seal is exposed to conventional oven conditions.

Claims (30)

1. ~A film comprising:
a first layer comprising one or more polyamides; and a second layer comprising one or more polyamides, wherein the second layer has a melting point of at least about 210°C;
wherein;
the film has first and second opposite outer surfaces and the first layer forms the first outer surface of the film; and the film is capable of forming a water-containing package by providing two 4 inch by 6 inch sheets of the film each having four perimeter sides, placing the sheets in superimposed, coextensive arrangement having the first layers of the films in contact with each other, heat sealing three perimeter sides of the sheets together using a 1/8-inch wide sealing bar at a temperature of 290°F, a dwell tune of 0.5 seconds, and a sealing pressure of 40 psig to form an open pouch having heat seals along three of the four perimeter sides, filling the open pouch with 100 milliliters of distilled water at a temperature of 73°F, heat sealing the fourth perimeter sides of the sheets together under the same conditions as used to seal the three perimeter sides to form a closed package having a heat seal along the fourth perimeter side and containing the water, where the seal strength of the heat seals is at least 1 pound/inch after the closed, water-containing package has been exposed to three hours in a conventional oven at 400°F (air temperature).
2. ~The film of claim 1 wherein the sealing bar has a temperature of 300°F.
3. ~The film of claim 1 wherein the first lager has a melting point and the melting point of the second layer is at least about 20°F greater than the melting point of the first layer.
4. ~The film of claim 1 wherein the first layer comprises at least two polyamides.
5. ~The film of claim 1 wherein the first layer has a glass transition temperature of less than about 120°C measured at a 50% relative humidity.
6. ~The film of claim 1 wherein the first layer comprises at least 70% by weight of the first layer of a blend comprising one or more polyamides having a melting point of at least about 210°C and one or more polyamides having a melting point of less than about 210°C.
7. ~The film of claim 6 wherein the blend comprises at least about 50% by weight of the blend of the one or more polyamides having a melting point of less than about 210°C.
8. ~The film of claim 1 wherein the first layer comprises at least 20%
amorphous polyamide by weight of the first layer.
9. ~The film of claim 1 wherein the first layer comprises at least about 80%
of one or more polyamides by weight of the first layer.
10. ~The film of claim 1 wherein the first layer comprises less than about 50%
of the total thickness of the film.
11. ~The film of claim 1 wherein the first layer comprises two or more polyamides selected from nylon-6, nylon-6,6, nylon-6,6,6,10, nylon-6,12, and nylon-6,1/6,T.
12. ~The film of claim 1 wherein the first layer comprises nylon-6, nylon-6,6/6,10, and nylon-6,1/6,T.
13, ~The film of claim 1 wherein the second layer comprises at least about 50%
of the total thickness of the film.
14. ~The film of claim 1 wherein the second layer comprises at least about 80%
of one or more polyamides by weight of the second layer.
15. ~The film of claim 1 wherein the second layer comprises one or more polyamides selected from nylon-6, nylon-6,6, and nylon 6/6,6.
16. The film of claim 1 wherein the second layer forms the second outer surface of the film.
17. The film of claim 1 wherein the film is capable of forming a heat seal having a seal strength of at least about 4 lbf-in where the heat seal is formed by heat sealing the first layers of two sheets of the film together using a 1/8-inch wide sealing bar at a temperature of 300°F, a dwell time of 0.5 seconds, and a sealing pressure of 40 psig.
18. ~The film of claim 1 wherein the haze of the film after two hours of exposure to air temperature of 400°F in a conventional oven is less than about 20%.
19. ~The film of claim 1 wherein the first layer comprises one or more heat stabilizers.
20. ~The film of claim 1 wherein the film comprises less than about 20% of polyolefin by weight of the film.
21. ~The film of claim 1 wherein the film is substantially free of polyolefin.
22, ~The film of claim 1 wherein the film comprises less than about 20%
polyester by weight of the film.
23. ~The film of claim 1 wherein the film, is substantially free of polyester,
24. ~A packaged food comprising:
a food; and a package enclosing the food, wherein the package comprises the film of claim 1.
25. ~The film of claim 1 wherein the film comprises a third layer comprising ethylene/vinyl alcohol.
26, ~The film of claim 1 wherein the first layer consists essentially of one or more polyamides.
27. ~The film of claim 1 wherein the melting point of the first layer is less than about 220°C.
28. ~The film of claim 1 wherein the film has an oxygen transmission rate of no more than about 150 cubic centimeters (at standard temperature and pressure) per square meter per day per 1 atmosphere of oxygen pressure differential measured at 0% relative humidity and 23°C.
29. The film of claim 1 wherein the film comprises at least about 70 weight %
polyamide by weight of the film.
30. ~A method of heating a food comprising:
providing a food enclosed an a package comprising the film of claim 1;
placing the food enclosed in the package in an oven; and activating the oven to heat the food enclosed in the package to a desired level.
CA 2438265 2002-08-27 2003-08-26 Dual-ovenable heat-sealable packaging film Expired - Lifetime CA2438265C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/228,515 2002-08-27
US10/228,515 US6979494B2 (en) 2002-08-27 2002-08-27 Dual-ovenable, heat-sealable packaging film

Publications (2)

Publication Number Publication Date
CA2438265A1 true CA2438265A1 (en) 2004-02-27
CA2438265C CA2438265C (en) 2012-08-07

Family

ID=31495344

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2438265 Expired - Lifetime CA2438265C (en) 2002-08-27 2003-08-26 Dual-ovenable heat-sealable packaging film

Country Status (6)

Country Link
US (2) US6979494B2 (en)
EP (1) EP1393897B1 (en)
AU (1) AU2003236479B2 (en)
CA (1) CA2438265C (en)
ES (1) ES2424479T3 (en)
NZ (1) NZ527620A (en)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9296126B2 (en) 2003-05-17 2016-03-29 Microgreen Polymers, Inc. Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming
US20050072316A1 (en) * 2003-10-03 2005-04-07 Tilman Paul A. Transparent cooking wrap having reinforcing elements
DE102004063220A1 (en) * 2004-12-29 2006-07-13 Degussa Ag Transparent molding compounds
DE102005007664A1 (en) * 2005-02-19 2006-08-31 Degussa Ag Transparent molding compound
US20070092744A1 (en) * 2005-10-13 2007-04-26 Plasticos Dise S.A. Polymer compositions and films and method of making
US8302528B2 (en) 2005-10-20 2012-11-06 Conagra Foods Rdm, Inc. Cooking method and apparatus
US9211030B2 (en) 2005-10-20 2015-12-15 Conagra Foods Rdm, Inc. Steam cooking apparatus
US8850964B2 (en) 2005-10-20 2014-10-07 Conagra Foods Rdm, Inc. Cooking method and apparatus
CA2527770C (en) 2005-11-21 2014-07-22 Steven M. Parsons Food tray
US9132951B2 (en) 2005-11-23 2015-09-15 Conagra Foods Rdm, Inc. Food tray
USD635816S1 (en) 2006-06-09 2011-04-12 Conagra Foods Rdm, Inc. Container basket
WO2008008215A2 (en) * 2006-07-10 2008-01-17 Health Research, Inc. Method for enhancing pdt efficacy using a tyrosine kinase inhibitor
US8522978B2 (en) * 2006-12-01 2013-09-03 Cryovac, Inc. Stress concentrator for opening a flexible container
US20080138473A1 (en) * 2006-12-08 2008-06-12 Adam Pawlick Dual-ovenable food packaging
DK2428358T3 (en) 2007-01-17 2015-06-15 Microgreen Polymers Inc A process for the production of a multilayer foamed polymeric article
US7744806B2 (en) * 2007-01-29 2010-06-29 Cryovac, Inc. Process for making shrink film comprising rapidly-quenched semi-crystalline polyamide
US7687123B2 (en) * 2007-01-29 2010-03-30 Cryovac, Inc. Shrink film containing semi-crystalline polyamide and process for making same
US20080182051A1 (en) * 2007-01-29 2008-07-31 Cryovac, Inc. Heat shrinkable retortable packaging article and process for preparing retorted packaged product
CA2679663C (en) 2007-03-02 2015-12-08 Catherine M. Shapiro Multi-component packaging system and apparatus
US10202229B2 (en) 2007-05-21 2019-02-12 Cryovac, Inc. Easy opening packaging article made from heat-shrinkable film exhibiting directional tear
US10189621B2 (en) * 2007-05-21 2019-01-29 Cryovac, Inc. Bag made from high-strength heat-shrinkable film exhibiting directional tear, and process utilizing same
US7980272B2 (en) * 2007-06-21 2011-07-19 Samsung Electronics Co., Ltd. Microfluidic valve, method of manufacturing the same, and microfluidic device comprising the microfluidic valve
US8613249B2 (en) 2007-08-03 2013-12-24 Conagra Foods Rdm, Inc. Cooking apparatus and food product
US20090047491A1 (en) * 2007-08-16 2009-02-19 Marc Scully Ovenable Multilayered Film
EP2030784B1 (en) * 2007-08-27 2016-04-13 Cryovac, Inc. Gas-barrier shrink films for use in deep-drawing applications
US20090081417A1 (en) * 2007-09-20 2009-03-26 M&Q Packaging Corporation High temperature thermoformed webs for packaging and cooking of food products
US20090117399A1 (en) * 2007-11-01 2009-05-07 Next Generation Films, Inc. Multi-layer polymer nanocomposite packaging films
US8568125B2 (en) 2008-04-14 2013-10-29 Microgreen Polymers Inc. Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs
WO2011133568A1 (en) 2010-04-19 2011-10-27 Microgreen Polymers, Inc A method for joining thermoplastic polymer material
BR112013004292B8 (en) * 2010-08-23 2022-10-04 Cryovac Inc REFRACTORY HEAT SEALED PACKAGING
USD639186S1 (en) 2010-09-08 2011-06-07 Conagra Foods Rdm, Inc. Container with sleeve
USD639656S1 (en) 2010-09-08 2011-06-14 Con Agra Foods RDM, Inc. Container lid
USD638701S1 (en) 2010-09-08 2011-05-31 Conagra Foods Rdm, Inc. Container
US20120213896A1 (en) * 2011-02-23 2012-08-23 Cryovac, Inc. Ovenable Cook-In Film Providing Decreased Protein Adhesion
JP6134339B2 (en) 2012-02-29 2017-05-24 マイクログリーン ポリマーズ，インク． Method and related system for gas injection into thermoplastic materials
USD717162S1 (en) 2012-06-12 2014-11-11 Conagra Foods Rdm, Inc. Container
USD680426S1 (en) 2012-06-12 2013-04-23 Conagra Foods Rdm, Inc. Container
US9027825B2 (en) 2012-06-12 2015-05-12 Conagra Foods Rdm, Inc. Container assembly and foldable container system
USD712250S1 (en) 2012-09-10 2014-09-02 The Hillshire Brands Company Packaging for food product
USD705051S1 (en) 2012-09-18 2014-05-20 The Hillshire Brands Company Packaging for food product
US9809404B2 (en) 2013-01-14 2017-11-07 Dart Container Corporation Systems for unwinding a roll of thermoplastic material interleaved with a porous material, and related methods
JP6323884B2 (en) 2013-05-24 2018-05-16 グラフィック パッケージング インターナショナル エルエルシー Package for food vapor and microwave combined heating
US8950622B1 (en) 2014-04-25 2015-02-10 M & Q Ip Leasing, Inc. Covers and containment systems and methods for food service pans
US9334099B2 (en) 2013-08-22 2016-05-10 M&Q Ip Leasing, Inc. Covers and containment systems and methods for food service pans
MX2016008346A (en) 2013-12-23 2017-04-06 Gen Mills Inc Microwave foodstuff package and method.
USD744851S1 (en) * 2014-02-03 2015-12-08 General Mills, Inc. Z-folded microwave foodstuff package
EP2923963A1 (en) 2014-03-26 2015-09-30 Cryovac, Inc. Package assembly and process for packaging products
BR112017007009B8 (en) 2014-10-10 2022-10-04 Cryovac Inc PACKAGING APPLIANCE, USE OF AN APPLIANCE AND PACKAGING PROCESS FOR A PRODUCT DISPOSED ON A SUPPORT
AU2015258191B2 (en) 2014-11-19 2020-02-27 Flexopack S.A. Oven skin packaging process
EP3299164B1 (en) 2016-09-27 2021-01-20 Flexopack S.A. Ovenable thermoformable film
GB201716345D0 (en) * 2017-10-06 2017-11-22 Johnson Matthey Plc Polymer films
EP3501822A1 (en) 2017-12-22 2019-06-26 Flexopack S.A. Fibc liner film
US20190241335A1 (en) * 2018-02-05 2019-08-08 Flexopack S.A. Ovenable thermoforming film
JP7061930B2 (en) * 2018-06-01 2022-05-02 株式会社クレハ Heat shrinkable multilayer film
US20210284410A1 (en) 2018-08-03 2021-09-16 Cryovac, Llc Super-hydrophobic thermoplastic films for packaging
EP3829868A1 (en) 2018-08-03 2021-06-09 Cryovac, LLC Super-hydrophobic thermoplastic films for packaging and packages made therefrom
BR112022021855A8 (en) * 2020-04-28 2023-04-11 Bemis Co Inc FILMS WITH RETORT SHOCK RECOVERY

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302384B (en) * 1963-05-22 1970-10-29
US3762986A (en) * 1971-02-26 1973-10-02 Allied Chem Polyamide composite film
US3995084A (en) * 1973-07-09 1976-11-30 Allied Chemical Corporation Films and bags of nylon 6 - nylon 6,6 blends
US4355721A (en) * 1979-05-11 1982-10-26 American Can Company Package for food products
US4400429A (en) * 1980-12-22 1983-08-23 National Distillers And Chemical Corporation Tree retardant additive composition for polymeric insulation
JPS58142848A (en) * 1982-02-19 1983-08-25 呉羽化学工業株式会社 Laminated film
JPS58192551A (en) 1982-05-06 1983-11-10 テルモ株式会社 Package container for preserving medical container
US4421823A (en) * 1982-06-01 1983-12-20 Curwood, Inc. Flexible wrapping material and method of manufacture
NL8202942A (en) * 1982-07-21 1984-02-16 Tno Apparatus for determining icing or the like.
US4448792A (en) * 1982-07-26 1984-05-15 W. R. Grace & Co., Cryovac Division Pasteurizable and cook-in shrink bag constructed of a multilayer film
US4537304A (en) * 1983-01-17 1985-08-27 Amsted Industries Incorporated Railway, coupler yoke, draft gear and follower assembly
US4606922A (en) * 1983-04-21 1986-08-19 W. R. Grace & Co., Cryovac Div. Cook-in meat packaging
US4542075A (en) * 1983-10-03 1985-09-17 W. R. Grace & Co., Cryovac Div. High barrier shrink film
US4605460A (en) * 1983-10-03 1986-08-12 W. R. Grace & Co., Cryovac Div. Method of laminating high barrier shrink film
US4647483A (en) * 1984-06-29 1987-03-03 American Can Company Nylon copolymer and nylon blends and films made therefrom
US4665135A (en) * 1984-06-29 1987-05-12 American Can Company Nylon blends and films made therefrom
US4803122A (en) * 1985-10-11 1989-02-07 W. R. Grace & Co. Multilayer laminate of self supporting films
DE3545768A1 (en) * 1985-12-21 1987-06-25 Wolff Walsrode Ag EASILY Tearable, Sterilizable Packs
GB8531934D0 (en) 1985-12-31 1986-02-05 Du Pont Canada Dual-ovenable food trays
SE456322B (en) * 1986-03-04 1988-09-26 Asea Stal Ab SET FOR MANUFACTURE OF METAL PRODUCTS THROUGH HEATISOSTAT COMPRESSION OF POWDER USING CORE
JPS62273849A (en) * 1986-05-23 1987-11-27 呉羽化学工業株式会社 Heat-shrinkable composite film and manufacture thereof
US4855183A (en) * 1986-11-17 1989-08-08 W. R. Grace & Co.-Conn. Multiple-layer, cook-in film
GB8705712D0 (en) * 1987-03-11 1987-04-15 Du Pont Canada Lid for food trays
US4877684A (en) * 1987-08-24 1989-10-31 American National Can Company Nylon carrier for polymer concentrate, and films and packages made with the concentrate
AU2454288A (en) 1987-11-02 1989-05-04 Seagate Technology, Inc. Encapsulated stepper motor
GB8725744D0 (en) * 1987-11-03 1987-12-09 Du Pont Canada Dual-ovenable nylon container
US4937112A (en) * 1987-12-18 1990-06-26 W. R. Grace & Co.-Conn. High strength coextruded film for chub packaging
CA1316469C (en) 1988-04-20 1993-04-20 Toyokazu Yamada Multilayer structure and easily openable container and lid
US5061532A (en) * 1988-04-20 1991-10-29 Idemitsu Petrochemical, Co., Ltd. Multilayer structure and easily openable container and lid
US5089073A (en) * 1988-09-26 1992-02-18 W. R. Grace & Co.-Conn. High strength laminated film for chub packaging
US5037683A (en) * 1988-09-26 1991-08-06 W. R. Grace & Co.-Conn. High strength laminated film for chub packaging
GB8824854D0 (en) 1988-10-24 1988-11-30 Du Pont Canada Polyamide food & beverage cans
DE4001612C2 (en) * 1990-01-20 1999-05-27 Hoechst Ag Multi-layer packaging cover based on polyamide
US5016735A (en) * 1990-01-30 1991-05-21 Hodge Todd D Scaffold planking stabilizer
US5281360A (en) * 1990-01-31 1994-01-25 American National Can Company Barrier composition and articles made therefrom
US5314987A (en) * 1990-01-31 1994-05-24 American National Can Company Barrier compositions and film made therefrom having improved optical and oxygen barrier properties
US6288161B1 (en) * 1990-01-31 2001-09-11 Pechiney Emballage Flexible Europe Barrier compositions and articles made therefrom
US20030134966A1 (en) * 1990-01-31 2003-07-17 Kim Yong Joo Barrier compositions and articles made therefrom
US5462756A (en) * 1990-04-05 1995-10-31 Plicon Corporation Cook-in meat package
DE9007334U1 (en) * 1990-05-26 1991-03-14 Hoechst Ag, 6230 Frankfurt, De
US5206309A (en) 1991-03-06 1993-04-27 Allied Signal Inc. Heat stable film composition comprising polyepsiloncaprolactam
GB9114767D0 (en) 1991-07-09 1991-08-28 Du Pont Canada Food containers of nylon 6,6/6t
US6221410B1 (en) * 1992-09-25 2001-04-24 Cryovac, Inc. Backseamed casing and packaged product incorporating same
US5460878A (en) * 1992-10-26 1995-10-24 Applied Extrusion Technologies, Inc. Heat sealable shrink laminate
US5374459A (en) * 1993-04-06 1994-12-20 W. R. Grace & Co.-Conn. Packaging material for long-term storage of food products
US5547765A (en) * 1993-09-07 1996-08-20 Alliedsignal Inc. Retortable polymeric films
US5534277A (en) * 1994-12-09 1996-07-09 W. R. Grace & Co.-Conn. Film for cook-in applications with plural layers of nylon blends
US5866214A (en) * 1995-07-28 1999-02-02 W. R. Grace & Co.-Conn. Film backseamed casings therefrom, and packaged product using same
US5709915A (en) * 1995-08-04 1998-01-20 Reynolds Consumer Products, Inc. Adhesive structure for heat sealing
CZ296811B6 (en) 1995-10-06 2006-06-14 Cryovac, Inc. Backseamed casing and packaged product incorporating the same
US5827559A (en) 1996-02-02 1998-10-27 E. I. Du Pont De Nemours And Company Cook-in packaging and methods relating thereto
EP0795482A3 (en) 1996-03-12 1997-11-12 Fuji Techno Co., Ltd. Food product packaging bag
CA2262799C (en) * 1996-08-16 2006-01-10 Cryovac, Inc. Article comprising film having polyamide sealant, polyamide core layer, and o2-barrier layer, and packaged product using same
JPH10195211A (en) * 1996-12-27 1998-07-28 Kureha Chem Ind Co Ltd Film or sheet for packaging
US5926989A (en) * 1997-10-16 1999-07-27 Oliver, Sr.; Frank Trigger finger stop assembly
ATE276103T1 (en) 1997-12-30 2004-10-15 Cryovac Inc MULTI-LAYER FILM FOR GOODS COOKED IN THE PACKAGING
SE9801140D0 (en) * 1998-04-01 1998-04-01 Tetra Laval Holdings & Finance Laminated packaging material and packaging containers made therefrom
US6376093B1 (en) 1998-05-26 2002-04-23 Toyo Boseki Kabushiki Kaisha Polyamide film and polyamide laminate film
US6780522B1 (en) * 1998-10-16 2004-08-24 Wolff Walsrode Ag Transparent high strength polyamide film
DE19935324A1 (en) 1999-07-28 2001-02-01 Wolff Walsrode Ag Film, comprises a layer(s) of polyamide comprising polyamide 6 dispersed nano-scale nucleating particles
AU753075B2 (en) 1999-04-02 2002-10-10 Kureha Kagaku Kogyo Kabushiki Kaisha Multilayered casing film
US6447892B1 (en) 2000-05-23 2002-09-10 Honeywell International Inc. Lidding film for modified atmosphere packaging
US6627273B2 (en) 2001-03-13 2003-09-30 Cryovac, Inc. Lidstock laminate

Also Published As

Publication number Publication date
US6979494B2 (en) 2005-12-27
US20060088678A1 (en) 2006-04-27
NZ527620A (en) 2005-03-24
ES2424479T3 (en) 2013-10-02
EP1393897A3 (en) 2004-06-02
AU2003236479B2 (en) 2008-04-17
EP1393897A2 (en) 2004-03-03
CA2438265C (en) 2012-08-07
US20040043233A1 (en) 2004-03-04
AU2003236479A1 (en) 2004-03-18
US7504158B2 (en) 2009-03-17
EP1393897B1 (en) 2013-07-10

Similar Documents

Publication Publication Date Title
CA2438265A1 (en) Dual-ovenable heat-sealable packaging film
ES2221935T3 (en) UNFOLIATED CARTON POLYMER COATED TO PACKAGING FOOD AND NON-FOOD PRODUCTS.
CA1322949C (en) Peelable barrier film for vacuum skin packages and the like
US8815360B2 (en) Multilayer film having passive and active oxygen barrier layers
AU702738B2 (en) Barrier package for fresh meat products
AU2008293811B2 (en) Multilayer film having active oxygen barrier layer and iron-based oxygen scavenging layer
EP0641251B1 (en) Oxygen absorber
KR100321605B1 (en) Carton structure for juice with extended shelf life and its manufacturing method
ES2329236T3 (en) ROLLED WITH BARRIER EFFECT FOR PACKAGING OF DRINKS.
CA2440723A1 (en) Lidstock laminate
CA2402698A1 (en) Containers and peelable seal containers of non-pvc material
WO2006023335A3 (en) Packaging films having encapsulated barrier layers
JP4184768B2 (en) Laminated body and packaging container using the same
FI98900C (en) Meat-adhesive, cooking-resistant shrink film
JPH08197692A (en) Gas barrier laminating material
MXPA04010593A (en) Non-foil barrier laminates.
US4816342A (en) Polymeric structure having improved barrier properties and method of making same
JPH0940024A (en) Hermetic container excellent in preserving quality
JP2747290B2 (en) Packaging materials for long-term storage of preservative foods
JP4595167B2 (en) Package
JP2000142815A (en) Deoxidizing airtight packaging container and storing method
JP2004223728A (en) Laminate and packaging container using the same
AU672776B2 (en) Hermetic seal for trayed product
US20240101327A1 (en) Elastomer containing multilayer film and method of manufacture
JPS632648B2 (en)

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20230828