WO2005037679A1 - Multi-compartment package having temperature dependent frangible seals - Google Patents
Multi-compartment package having temperature dependent frangible seals Download PDFInfo
- Publication number
- WO2005037679A1 WO2005037679A1 PCT/US2004/034445 US2004034445W WO2005037679A1 WO 2005037679 A1 WO2005037679 A1 WO 2005037679A1 US 2004034445 W US2004034445 W US 2004034445W WO 2005037679 A1 WO2005037679 A1 WO 2005037679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- package
- seal
- film
- layer
- sheet
- Prior art date
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
- B32B27/06—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
- B32B27/34—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
- 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
- B65D81/32—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 two or more different materials which must be maintained separate prior to use in admixture
- B65D81/3261—Flexible containers having several compartments
- B65D81/3266—Flexible containers having several compartments separated by a common rupturable seal, a clip or other removable fastening device
-
- 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
Definitions
- This invention relates to a multi-compartment flexible package, to a film therefor, and to a product such as convenience meal comprising the package.
- Background of the Invention It is often desirable to have products packaged together, yet separated, for later mixing. Such packaging is advantageous where the several products have differing physical characteristics or are incompatible during storage and are to be mixed shortly before consumption.
- An example is a package or pouch to contain multiple foodstuffs separated by one or more seals. The foodstuffs require mixing or combining either sometime during or at the end of the cooking cycle.
- Various ingredients cannot be mixed together prior to cooking generally because they are incompatible in storage, or because qualities (e.g.
- the invention also comprises multi-compartment package comprising first sheet of polymer film, second sheet of polymer film and at least one temperature-dependent frangible seal.
- the invention also comprises a multi-compartment package comprising first sheet of polymer film, second sheet of polymer film and at least one temperature-dependent frangible seal.
- package can comprise or produced from a polymeric film comprising or produced from at least one polymer layer and a sealant layer comprising a polymeric material.
- the polymer layer can comprise or be produced from at least one polymeric material selected from the group consisting of polyethylene, polypropylene, polyamide, polyester, polyvinylidene chloride and ethylene/vinyl alcohol copolymer.
- the sealant layer can comprise or be produced from amorphous polyethylene terephthalate or ethylene/vinyl acetate copolymer.
- the sealant layer is capable of forming a seal with strength greater than 1 ,500 g/inch (590 g/cm) and a temperature dependent frangible seal.
- the polymer layer that can be used to produce the packages can be in flexible sheet or film form.
- the multilayer polymer film or sheet can involve at least three layers, including but not limited to, an outermost structural or abuse layer, an inner or outer barrier layer, and an innermost layer and optionally one or more adhesive or tie layers therebetween.
- a preferred material for the strength layers is a polyamide such as biaxially oriented nylon from about 0.5 mil (12.7 ⁇ m) to about 3 mils (76.2 ⁇ m)in thickness.
- nylon used as an outer layer is preferably from about 1 (25.4 ⁇ m) to 3 mils (76.2 ⁇ m) thick.
- Nylon used as an inner layer in combination with another layer is preferably from about 0.5 to 1.5 mils (12.7 to 38.1 ⁇ m) thick.
- the structural layer can also include one or more barrier layers, depending on which atmospheric conditions (oxygen, humidity, light, and the like) that potentially can affect the product inside the pouch.
- Barrier layers can be for example, oriented PET, polyvinylidene chloride (PVDC), ethylene vinyl alcohol (EVOH), nylon or biaxially oriented nylon, blends or composites of the same as well as related copolymers thereof.
- PVDC polyvinylidene chloride
- EVOH ethylene vinyl alcohol
- Barrier layer thickness may depend on the sensitivity of the product and the desired shelf life.
- the functions of structure and barrier layers may be combined in a single layer of a suitable resin.
- nylon or PET are suitable for both structure and barrier functions.
- the innermost layer of the package is the sealant.
- An amorphous PET copolyester heat-sealant can be derived from at least the following components: from about 10 to about 60 mole% terephthalic acid ("Monomer A”); from about 10 to about 60 mole % ethylene glycol (“Monomer B”); and from about 5 to about 60 mole % of a third monomer being a secondary di-acid (“Monomer C”) and/or a secondary diol (“Monomer D").
- the invention also provides the aforesaid packages further comprising a foodstuff confined to one of said separated compartments and at least one other foodstuff confined to at least one other separated compartment.
- the invention also includes a multiple-compartment package, which can be suitable for use in such packages comprising or produced from (a) at least one layer comprising at least one polymeric material comprising or selected from the group consisting of polyethylene, polypropylene, polyamide, polyester, polyvinylidene chloride and ethylene/vinyl alcohol copolymer; (b) a sealant layer comprising a polymeric material selected from the group consisting of amorphous polyethylene terephthalate or ethylene/vinyl acetate copolymer; wherein said sealant layer is capable of forming a seal with strength greater than 1 ,500 gram/inch and also capable of forming a temperature dependent frangible seal; and optionally (c) at least one insulating layer.
- the top of the pouch thereby allowing for locating a notch at the side of the desired area for opening.
- a notch For example, one could place the notch slightly above the "bottom" compartment of a pouch. After the frangible seal(s) rupture and all the previously separated products are combined into the single compartment remaining, the notch is used to propagate the directional tearing feature across the package side seals to open the pouch. This provides for shortening of the pouch and the meal can be consumed directly from the bottom portion with the top being discarded; or the meal can be placed on a secondary dish if so desired.
- Another embodiment of the invention employs forming a web of the packaging film with gussets to fabricate a stand-up pouch (SUP) by heat- sealing the built-in sealant.
- SUP stand-up pouch
- the thermal insulating layer comprises an organic thermoplastic fiber based material comprising polyester, polyethylene or polypropylene.
- the thermal insulating layer is a fiberfill batt that can comprise or produced from polyester.
- a fiberfill batt sold as THERMOLITE ® Active Original by E. I. du Pont de Nemours and Company (DuPont), Wilmington, Delaware can be used.
- the fiberfill batt used can have an areal weight in the range of 10 gm/m 2 to 200 gm/m 2 , and a bulk density of less than 0.3 gm/cm 3 .
- the thermal insulating layer may comprise melt blown fibers, such as melt blown polyolefins, sold as TH INSULATE ® , by 3M.
- the thermal insulating layer may comprise a foam.
- the foam may be polyurethane or polypropylene, or any other foam composition as known in the art.
- the thermal insulating layer may be alternatively made of an inorganic thermoplastic fiber based material comprising glass wool, borosilicate glass or rockwool.
- the thermal insulating layer may comprise a knit fabric, made, for example from a tetrachannel or scalloped oval fiber, sold under the trademark COOLMAX ® by DuPont.
- the thermal insulating layer may also be a woven or fleece material.
- the insulating layer could also comprise some sort of nonwoven textile, such as felt, or a highloft nonwoven or needled nonwoven fabric.
- a preferred film comprising at least one insulating layer comprises at least one layer of polyester (e.g. oriented PET) as a structural layer and a layer of amorphous polyethylene terephthalate copolymer as the sealant.
- co-extrudable adhesives are optionally used between functional layers to adhere the layers to each other and to provide structural integrity.
- the multi-layered films are typically from 0.75 mils to 5.0 mils thick, preferably about 1.5 to about 3.0 mils thick. Also, to provide additional thickness (if desired by the consumer for a particular application), bulk layers of polyolefin or chopped remnants of the multilayer film trimmed during pouch fabrication can be incorporated within the multilayer structure. It is contemplated that the sheet of polymeric film (i.e., the so-called "web stock”) may be produced using any combinations of the processes generally known in the art, such as monolayer or multilayer casting, blowing film, extrusion lamination, and adhesive lamination and combinations thereof.
- Processing aids as generally known in the art, including by way of example but not limited thereto; slip agents (such as amide waxes), antiblocking agents (such as silica), and antioxidants (such as hindered phenols), may be incorporated in the web stock to facilitate either manufacture of the film or pouch formation.
- Pouches can be formed from web stock by either cutting and heat sealing separate pieces of web stock or by a combination of folding and heat sealing with cutting.
- pouches are formed from two film sheets.
- the two film sheets may be two individual sheets of film.
- a single web of film may be folded onto itself to provide two overlying sheets, or a tube of film may be formed such that two overlying portions of the tube provide the equivalent of two sheets of film.
- the heat sealed ' perimeter of the pouch according to the instant invention can be achieved by superimposing the first and second sheets of polymeric film and then heat sealing each directly to the other or heat sealing them indirectly through the use of an intervening third polymeric film, again as generally known and practiced in the art.
- the frangible seals can be installed either during or after pouch formation. Pouch making equipment such as that made by Totani Corporation, Kyoto, Japan or Klockner Barlelt Co., Gordonsville, VA can be used.
- An example multi-compartment package in the form of a generally flat rectangular pouch-like shape is formed of two juxtaposed sheets of thin, flexible, impervious polymeric material as described above. Particular embodiments of the present invention include those wherein the multi- compartment package has two or three compartments.
- Structural Components Outer Structure Layer nylon 6; 2 mil (50.8 ⁇ m) thickness available under the tradename Dartek ® B601 from DuPont of Canada/Liqui-Box.
- Lamination Adhesive solvent-based polyester urethane adhesive available under the tradename Adcote 503A/Catalyst F from the Morton division of Rohm and Haas.
- Seal Layer biaxially oriented polyester (OPET) coated with an amorphous PET copolymer (APET) heat seal layer; 0.5 mil (12.7 ⁇ m) available under the tradename Mylar ® OL13 from DuPont Teijin Films.
- Example 3 This example illustrates heating packages of Example 2 such that the temperature dependent frangible seals release, allowing the previously separated contents to be mixed.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004281278A AU2004281278A1 (en) | 2003-10-14 | 2004-10-13 | Multi-compartment package having temperature dependent frangible seals |
JP2006535417A JP2007512187A (en) | 2003-10-14 | 2004-10-13 | Multi-compartment package with temperature-dependent fragile seal |
DE602004016203T DE602004016203D1 (en) | 2003-10-14 | 2004-10-13 | MULTI-CHAMBER PACKAGING WITH TEMPERATURE-RELATED TORQUE SEALS |
BRPI0415581-5A BRPI0415581A (en) | 2003-10-14 | 2004-10-13 | multi layer film, multi compartment package and convenience food |
EP04795587A EP1680336B1 (en) | 2003-10-14 | 2004-10-13 | Multi-compartment package having temperature dependent frangible seals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US51143603P | 2003-10-14 | 2003-10-14 | |
US60/511,436 | 2003-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005037679A1 true WO2005037679A1 (en) | 2005-04-28 |
Family
ID=34465231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/034445 WO2005037679A1 (en) | 2003-10-14 | 2004-10-13 | Multi-compartment package having temperature dependent frangible seals |
Country Status (8)
Country | Link |
---|---|
US (1) | US20050079252A1 (en) |
EP (1) | EP1680336B1 (en) |
JP (1) | JP2007512187A (en) |
CN (1) | CN1894142A (en) |
AU (1) | AU2004281278A1 (en) |
BR (1) | BRPI0415581A (en) |
DE (1) | DE602004016203D1 (en) |
WO (1) | WO2005037679A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2458730A (en) * | 2008-03-31 | 2009-10-07 | Greencore Group Plc | A meal kit |
US8409645B2 (en) | 2008-11-18 | 2013-04-02 | Kraft Foods Group Brands Llc | Food package for segregating ingredients of a multi-component food product |
US8541038B2 (en) | 2008-11-18 | 2013-09-24 | Kraft Foods Group Brands Llc | Food package for segregating ingredients of a multi-component food product |
US8551545B2 (en) | 2008-11-18 | 2013-10-08 | Kraft Foods Group Brands Llc | Food package for segregating ingredients of a multi-component food product |
Families Citing this family (34)
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CA2474927C (en) * | 2002-02-08 | 2010-03-30 | Graphic Packaging International, Inc. | Insulating microwave interactive packaging |
US7569276B2 (en) * | 2003-12-22 | 2009-08-04 | Dupont Teijin Films U.S. Limited Partnership | Thermoformable polyester-containing laminates |
EP1723050B1 (en) | 2004-02-09 | 2014-10-01 | Graphic Packaging International, Inc. | Microwave cooking package |
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 |
US8302528B2 (en) | 2005-10-20 | 2012-11-06 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
US9132951B2 (en) | 2005-11-23 | 2015-09-15 | Conagra Foods Rdm, Inc. | Food tray |
CA2527770C (en) | 2005-11-21 | 2014-07-22 | Steven M. Parsons | Food tray |
US20100047403A1 (en) * | 2006-10-30 | 2010-02-25 | Elizabeth Johnson | Pouch container for food product |
US20110026860A1 (en) * | 2006-12-06 | 2011-02-03 | Qualigen, Inc. | Method and Apparatus for Implementing Differential Heat Seal Strength in Pouch-Based Diagnostic and Medical Products |
US9073689B2 (en) * | 2007-02-15 | 2015-07-07 | Graphic Packaging International, Inc. | Microwave energy interactive insulating structure |
US8866056B2 (en) | 2007-03-02 | 2014-10-21 | Conagra Foods Rdm, Inc. | Multi-component packaging system and apparatus |
US8613249B2 (en) * | 2007-08-03 | 2013-12-24 | Conagra Foods Rdm, Inc. | Cooking apparatus and food product |
US20090181135A1 (en) * | 2008-01-11 | 2009-07-16 | Domingues David J | Dough and dough product packaging configurations |
EP2265514B1 (en) * | 2008-03-27 | 2016-02-10 | Graphic Packaging International, Inc. | Self-venting microwave heating package |
US20100280152A1 (en) * | 2009-04-29 | 2010-11-04 | Spartech Corporation | Thermoformable and RF Sealable Plastic Packaging Material |
EP2474415B1 (en) * | 2009-08-31 | 2015-03-25 | The Nippon Synthetic Chemical Industry Co., Ltd. | Multi-layer structure |
MX2012004215A (en) * | 2009-10-07 | 2012-07-30 | Diamond Foods Inc | Delivery of flavors in microwave popcorn bags. |
EP2605732B1 (en) | 2010-08-18 | 2018-02-14 | Christopher Burnside Gordon | In situ molded orthotic and method for its fabrication |
US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
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 |
EP2727847A1 (en) * | 2012-11-01 | 2014-05-07 | Unilever N.V. | A process for the manufacture of a sachet with at least 2 compartments |
CA2910074C (en) | 2013-05-24 | 2018-07-24 | Graphic Packaging International, Inc. | Package for combined steam and microwave heating of food |
JP6476009B2 (en) * | 2015-02-26 | 2019-02-27 | 大和製罐株式会社 | Easy peel packaging bag |
JP6746879B2 (en) * | 2015-04-08 | 2020-08-26 | 住友ベークライト株式会社 | Sealant film, multilayer film, and package |
US10569950B2 (en) | 2015-12-31 | 2020-02-25 | Bemis Company, Inc. | Self-venting bag-in-box package |
JP6724365B2 (en) * | 2016-01-05 | 2020-07-15 | 凸版印刷株式会社 | Laminated film and packaging container |
CA2968471A1 (en) * | 2016-05-27 | 2017-11-27 | Potandon Produce L.L.C. | Seasoned food product and method |
US10604325B2 (en) | 2016-06-03 | 2020-03-31 | Graphic Packaging International, Llc | Microwave packaging material |
WO2018129124A1 (en) | 2017-01-04 | 2018-07-12 | Church & Dwight Co., Inc. | A system and a related method for forming a multi-chamber package |
US20180208387A1 (en) * | 2017-01-24 | 2018-07-26 | Wal-Mart Stores, Inc. | Insulated Bag Roll System |
CN106798334B (en) * | 2017-02-03 | 2020-10-30 | 成都市亚丁胡杨科技股份有限公司 | Ice powder |
US20200406591A1 (en) * | 2018-02-27 | 2020-12-31 | Cryovac, Llc | Sealable and easy opening polyester films |
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GB1437046A (en) * | 1973-02-02 | 1976-05-26 | Toyo Boseki | Heat-adhesive laminated sheet |
EP0408042A2 (en) * | 1989-07-14 | 1991-01-16 | Diafoil Hoechst Co., Ltd | Heat-sealable laminated polyester film |
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US20030124258A1 (en) * | 2001-04-11 | 2003-07-03 | Benim Thomas E. | Microwave susceptible insulated label and packaging material |
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-
2004
- 2004-10-13 US US10/963,933 patent/US20050079252A1/en not_active Abandoned
- 2004-10-13 CN CNA2004800369985A patent/CN1894142A/en active Pending
- 2004-10-13 DE DE602004016203T patent/DE602004016203D1/en active Active
- 2004-10-13 AU AU2004281278A patent/AU2004281278A1/en not_active Abandoned
- 2004-10-13 WO PCT/US2004/034445 patent/WO2005037679A1/en active Application Filing
- 2004-10-13 BR BRPI0415581-5A patent/BRPI0415581A/en not_active IP Right Cessation
- 2004-10-13 JP JP2006535417A patent/JP2007512187A/en not_active Withdrawn
- 2004-10-13 EP EP04795587A patent/EP1680336B1/en not_active Expired - Fee Related
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GB1437046A (en) * | 1973-02-02 | 1976-05-26 | Toyo Boseki | Heat-adhesive laminated sheet |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2458730A (en) * | 2008-03-31 | 2009-10-07 | Greencore Group Plc | A meal kit |
US8409645B2 (en) | 2008-11-18 | 2013-04-02 | Kraft Foods Group Brands Llc | Food package for segregating ingredients of a multi-component food product |
US8541038B2 (en) | 2008-11-18 | 2013-09-24 | Kraft Foods Group Brands Llc | Food package for segregating ingredients of a multi-component food product |
US8551545B2 (en) | 2008-11-18 | 2013-10-08 | Kraft Foods Group Brands Llc | Food package for segregating ingredients of a multi-component food product |
Also Published As
Publication number | Publication date |
---|---|
CN1894142A (en) | 2007-01-10 |
US20050079252A1 (en) | 2005-04-14 |
AU2004281278A1 (en) | 2005-04-28 |
DE602004016203D1 (en) | 2008-10-09 |
BRPI0415581A (en) | 2007-01-02 |
EP1680336A1 (en) | 2006-07-19 |
EP1680336B1 (en) | 2008-08-27 |
JP2007512187A (en) | 2007-05-17 |
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