EP0448661A1 - Composite material for the insulation of containers and containers formed therefrom - Google Patents
Composite material for the insulation of containers and containers formed therefromInfo
- Publication number
- EP0448661A1 EP0448661A1 EP90914083A EP90914083A EP0448661A1 EP 0448661 A1 EP0448661 A1 EP 0448661A1 EP 90914083 A EP90914083 A EP 90914083A EP 90914083 A EP90914083 A EP 90914083A EP 0448661 A1 EP0448661 A1 EP 0448661A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composite material
- stiffening
- plastics film
- thermal
- composite
- 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.)
- Withdrawn
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 66
- 238000009413 insulation Methods 0.000 title description 9
- 239000000463 material Substances 0.000 claims abstract description 57
- 239000002985 plastic film Substances 0.000 claims abstract description 5
- 229920000728 polyester Polymers 0.000 claims abstract 2
- 239000004033 plastic Substances 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 24
- 229920006255 plastic film Polymers 0.000 claims description 4
- 229920002457 flexible plastic Polymers 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 229920003043 Cellulose fiber Polymers 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000005388 borosilicate glass Substances 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 210000002268 wool Anatomy 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 9
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 20
- 239000010408 film Substances 0.000 description 17
- 239000003507 refrigerant Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000005253 cladding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000011091 composite packaging material Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011104 metalized film Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
-
- 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
- B32B27/32—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
- B32B27/36—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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/41—Opaque
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/414—Translucent
-
- 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
- B32B2323/10—Polypropylene
-
- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
-
- 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
Definitions
- the invention relates to a composite material for use in the insulation of containers and to insulated containers which incorporate such composite material.
- the composite material has insulating properties for the storage of hot or cold items and the invention is particularly useful in forming packaging containers for the transport of products which are perishable or which are required to remain frozen, chilled or heated whilst in transit.
- composite material according to the invention should be resilient to impact and rough handling during the packing and freighting, yet not be overlarge in size when placed in or around a packaging container; not excessively heavy in weight nor unduly expensive to manufacture.
- such composite material should have storage characteristics which permit its stockpiling without occupying excessive space and be capable of placement into, upon or over a container and upon termination of use be capable of disposal without causing pollution or with an inability to be absorbed into recycling processes or reclamation.
- the composite material which will form the insulation of such containers be formed from material of which at least part is waterproof.
- the present invention seeks to satisfy all these requirements in whole or in part whilst having none of the adverse properties of many materials currently used in the formation of such packaging, such as expanded polystyrene, which is a material virtually impossible to recycle or destroy without creating potentially harmful side effects.
- a composite material is formed into one or more panels for use as an insulator, said composite material comprising a core of thermal-property material, a sheet of stiffening material adjacent at least one side of said core and an outer flexible plastics film material disposed such that said thermal and stiffening materials are enclosed within the flexible plastics film.
- the differing materials which comprise the composite material have individual properties which contribute to the desired final characteristics of the insulation.
- the core of the material may be a slab of man-made mineral fibre such as rock wool - this material is extensively used in varying applications for its thermal properties, which are well proven.
- rock wool will incorporate a binder such as cured urea extended phenol formaldehyde resin, or starch and mineral oil.
- a stiffening material such as card
- the stiffening material may be solid or corrugated to any manageable size and thickness not necessarily to the same dimensions as the core.
- the stiffening material may be metallized, printed, foil-stamped, embossed or lacquered and for any of these operations card is a suitable medium. If card is used and is manufactured in corrugated format, then additional thermal enhancement may be obtaine . Furthermore, such corrugation will provide additional stiffening in those instances where the composite material is used as a container per se without the addition of external packaging, or where the composite material is used as an outer cladding to create a thermal barrier around a package.
- the stiffening material may be used to display graphics and information in such manner as to be visible when the outer covering of plastic film is transparent or translucent and if coated with a reflective surface, to contribute as a thermal barrier to solar rays or other sources of heat.
- plastics film of a size which exceeds both core and stiffening material is positioned in such manner that the core and stiffening material are contained and enclosed within the plastic film.
- Such containment may be achieved by using the film in single sheet format so that it is folded around the core and stiffening material whereafter three edges of the film are then sealed and the sheet then encloses the other materials so that the whole forms a panel which may be used as an insulating barrier within any form of packaging.
- a series of panels connected one to the next may be obtained. If at least one of the outer edges of the film initially is left unsealed, the plastics film may first be prepared to receive the core and stiffening materials.
- the plastics film sheet can of course be folded upon itself to create, together with the core, an insulated pocket to which a refrigerant may be added without making contact with the materials other than the plastics film.
- the composite material it is possible to obtain similar enclosure of the core and stiffening material by using two or more separate sheets of plastics film which may not necessarily be of the same composition but which should be inert to the content of the package, non-toxic and compatible to the joining of one sheet to the other. If a pocket is required it may included in one or both sheets of the plastics film and positioned on whichever side of the core and stiffening material is best suited to the purpose of enclosure, i.e. if to contain instructions on the stiffening material side, if to contain refrigerant on the core side.
- Combination films can add strength and impact resistance and, in certain instances, a combination of non-permeable and permeable films may provide a waterproof barrier on one side of a composite material panel whilst allowing moisture to pass through the other side which may be advantageous where the composite material is used as a container for plants or other horticultural or agricultural applications which require retention of heat allied to moisture encapsulation.
- plastics film enclosing the core and stiffening material may have a perforate line at preselected locations along its length so that if manufactured in multiple panel format, one or more panels of the composite material may be detached or if manufactured without the addition of the core and stiffening material, may be detached and then the other materials added thereafter.
- a triple panel section comprising three composite material panels with sealed spaces between each panel and further including a separate composite material panel are made from the composite material in a manner previously described.
- the single panel is placed at the bottom of an open-topped container which is then filled with perishable product and refrigerant and the triple panel is placed over the content with the centre panel across the top of the open container top and one panel descending upon each of the respective sides of the container.
- a separate lid which includes side and end walls is then placed over the whole, thus creating an enclosed package which is insulated over the inner top, bottom and side walls thereof.
- a four sided panel section comprising four main composite material panels with sealed spaces between each panel foldable into a sleeve and additional 'end' panels comprising sections attached to one or more of the main panels is made from the composite material and the whole assembled to form an outer enclosure into which enclosure is inserted a package comprising product.
- the end panels of the enclosure covering are folded and sealed to the main panels so as to encapsulate and create a thermal barrier around the internal package.
- the enclosure may be inserted into a two-part outermost box comprising base and lid.
- a double panel section comprising two composite material panels with sealed spaces between each panel both of which panels include a pocket.
- the pockets accommodate refrigerants and, in use, one panel is laid upon the base of a container so that the sealed space between the panels is disposed adjacent to one side wall of the container.
- Product is inserted into the container and received on top of the said one panel whereafter the other panel is laid over the product thus forming a thermal wrap inclusive of refrigerant around the content of the container.
- the composite material is attached to pre-formed and cut packaging material from which e.g. and outer box like container can be formed, it is possible for the composite material and packaging material to be stored as one entity and when required, to be assembled in one operation.
- the composite material may be used in widely varying sizes of packaging, from confectionery boxes to outsize cartons, as well as thermal wrap within airfreight and other containers, thereby reducing the requirement of specialised cartons used for the containment of perishable products transported within such containers.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
Abstract
Un matériau composite présentant des caractéristiques isolantes utiles pour la réalisation d'un garnissage isolant dans des cartons contenant des produits périssables ou dans des conditionnements d'encapsulage auxquels une stabilité thermique est nécessaire. Un ou plusieurs panneaux comprenant une âme en matière d'isolation thermique sont réalisés à partir dudit matériau, une matière de raidissement telle que du carton étant disposée sur au moins un côté de l'âme. Les deux matières sont enrobées d'une feuille en matière plastique telle que du polyester, lequel est éventuellement métallisé. L'ensemble est ensuite rendu étanche de manière à réaliser un panneau isolant imperméable.A composite material having insulating characteristics useful for producing an insulating lining in cartons containing perishable products or in packaging encapsulations for which thermal stability is necessary. One or more panels comprising a core of thermal insulation material are produced from said material, a stiffening material such as cardboard being placed on at least one side of the core. The two materials are coated with a plastic sheet such as polyester, which is optionally metallized. The assembly is then sealed so as to produce a waterproof insulating panel.
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898921305A GB8921305D0 (en) | 1989-09-20 | 1989-09-20 | Composite material for the formation of insulated containers |
GB8921305 | 1989-09-20 | ||
GB909018934A GB9018934D0 (en) | 1989-09-20 | 1990-08-30 | Composite material for the insulation of containers |
GB9018934 | 1990-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0448661A1 true EP0448661A1 (en) | 1991-10-02 |
Family
ID=26295948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90914083A Withdrawn EP0448661A1 (en) | 1989-09-20 | 1990-09-20 | Composite material for the insulation of containers and containers formed therefrom |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0448661A1 (en) |
JP (1) | JPH04501831A (en) |
AU (1) | AU6413290A (en) |
BR (1) | BR9006920A (en) |
FI (1) | FI912429A0 (en) |
WO (1) | WO1991004152A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5454471A (en) * | 1993-03-24 | 1995-10-03 | W. L. Gore & Associates, Inc. | Insulative food container employing breathable polymer laminate |
US7070841B2 (en) | 2001-04-11 | 2006-07-04 | E. I. Du Pont De Nemours And Company | Insulating label stock |
US7170040B1 (en) | 2001-04-11 | 2007-01-30 | E. I. Du Pont De Nemours And Company | Microwave susceptible insulated label and packaging material |
GB2490539A (en) * | 2011-05-06 | 2012-11-07 | Wool Packaging Company Ltd | Laminated packaging sheet comprising stiff and hygroscopic fibre layers |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583459A (en) * | 1969-09-11 | 1971-06-08 | Dart Ind Inc | Sealed bag |
GB1429657A (en) * | 1973-06-25 | 1976-03-24 | Monsanto Ltd | Insulation materials |
US4460645A (en) * | 1979-02-21 | 1984-07-17 | University College Cardiff | Insulation |
US4642970A (en) * | 1984-10-25 | 1987-02-17 | William Bane | Reusable insulated box and method of manufacture |
IT8521280V0 (en) * | 1985-03-29 | 1985-03-29 | Eurodomestici Ind Riunite | FLEXIBLE ENVELOPE OR BAG CONTAINER PREFERABLY FOR VACUUM CLEANING THERMAL INSULATION MATERIAL. |
-
1990
- 1990-09-20 AU AU64132/90A patent/AU6413290A/en not_active Abandoned
- 1990-09-20 JP JP2513145A patent/JPH04501831A/en active Pending
- 1990-09-20 BR BR909006920A patent/BR9006920A/en unknown
- 1990-09-20 EP EP90914083A patent/EP0448661A1/en not_active Withdrawn
- 1990-09-20 WO PCT/GB1990/001455 patent/WO1991004152A1/en not_active Application Discontinuation
-
1991
- 1991-05-20 FI FI912429A patent/FI912429A0/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9104152A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU6413290A (en) | 1991-04-18 |
WO1991004152A1 (en) | 1991-04-04 |
JPH04501831A (en) | 1992-04-02 |
FI912429A0 (en) | 1991-05-20 |
BR9006920A (en) | 1991-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19911004 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19930401 |