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WO2003002424A2 - Materiau de regulation thermique - Google Patents

Materiau de regulation thermique Download PDF

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Publication number
WO2003002424A2
WO2003002424A2 PCT/GB2002/003002 GB0203002W WO03002424A2 WO 2003002424 A2 WO2003002424 A2 WO 2003002424A2 GB 0203002 W GB0203002 W GB 0203002W WO 03002424 A2 WO03002424 A2 WO 03002424A2
Authority
WO
WIPO (PCT)
Prior art keywords
phase
change
substance
change substance
temperature
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.)
Ceased
Application number
PCT/GB2002/003002
Other languages
English (en)
Other versions
WO2003002424A3 (fr
Inventor
Matthew John Searle
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.)
Thermotic Developments Ltd
Original Assignee
Thermotic Developments Ltd
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 Thermotic Developments Ltd filed Critical Thermotic Developments Ltd
Publication of WO2003002424A2 publication Critical patent/WO2003002424A2/fr
Publication of WO2003002424A3 publication Critical patent/WO2003002424A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • 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
    • B65D81/38—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 with thermal insulation

Definitions

  • the present invention relates to the use of a material for packaging, a material, a method of packaging, a container, a sleeve of material, a method of making a material and a method of forming a material.
  • refrigerators and freezers are used as appropriate to provide long term storage of foodstuffs and pharmaceuticals whose conservation depends on a desired low temperature being maintained, there is a problem in transport. For example where foodstuffs are purchased at a store remote from the location of the purchaser's refrigerator or freezer, it is necessary to take special measures to ensure the correct conditions during transport. There is a further problem where the user is not returning to a location that has a refrigerator or freezer, for example, when camping. Similar problems exist for pharmaceuticals, human or animal tissue, human or animal organs, and many other substances, products and objects for which temperature change is harmful or otherwise undesirable.
  • insulated containers and vacuum devices may equally be used to keep heated things warm.
  • a material incorporating a phase-change substance for packaging a substance, product or object to thereby provide temperature control of the packaged substance, product or object.
  • phase-change substance for packaging allows a substance, product or object to be fully surrounded or partially surrounded.
  • the contact between the phase-change substance and the object being packaged is more intimate than where ice packs or the like are used. This means that the bulk, the weight and the cost of the packaging can be reduced.
  • the whole package, either with or without the substance, product or object can be readily preloaded with heat or coolth as appropriate if required.
  • the phase-change substance is microencapsulated.
  • Microencapsulation provides advantages of easy handling, product stability and consistency of product manufacture.
  • the material comprises a non-woven fabric wherein the microcapsules of the phase-change substance are applied to at least the surface of said non-woven fabric.
  • Non-woven fabrics may be very thin, allowing full flexibility for easy movement.
  • Such thin fabrics may have a surface coating of microcapsules; a higher quantity of microcapsules may be provided by plural thicknesses of fabric, each with a surface coating of microcapsules.
  • the material for packaging comprises a carrier material, wherein the microcapsules of the phase-change substance are supported in said carrier material.
  • the carrier material comprises a pulp.
  • the material may comprise a substrate and an adhesive securing the microcapsules to the substrate.
  • the material may comprise a foam and the microcapsules of the phase- change substance be disposed within the foam.
  • the material for packaging comprises at least first second and third layers, said second layer being disposed between first and thirc layers, and the phase-change substance being absorbed into the second layer. In other embodiments the material comprises at least first second and third layers, said second layer being disposed between said first and third layers, and the phase-change substance being adsorbed onto the second layer.
  • phase-change of the phase-change substance is between solid and liquid.
  • a material for use in providing temperature controlling packaging for a substance, product or object the material being in the form of a web or sheet which incorporates microcapsules of a phase-change substance.
  • Embodiments of a sheet or web packaging material incorporating a phase- change substance in microencapsulated form may be readily used to wrap or pack objects.
  • Embodiments of such a material may, where appropriate, be formed into a container for housing all or part of an object, such as another container holding a substance whose conservation is desirably in a given temperature range.
  • Embodiments of the material may alternatively be formed into a sleeve for disposition about an object, such as a container.
  • phase-change substance having a suitably high latent heat of phase-change for the application concerned, materials can maintain a temperature corresponding to that of the phase-change for a substantial period o1 time.
  • hot food may be kept hot enough for consumption without need to reheat. Reheating is to be avoided on a number of grounds, including inconvenience and possible contamination problems where for example bacteria may grow in lukewarm conditions.
  • the material comprises a non-woven fabric wherein the microcapsules of the phase-change substance are applied to at least the surface of said non-woven fabric.
  • Non-woven fabrics may be very thin, allowing full flexibility for easy movement.
  • Such thin fabrics may have a surface coating of microcapsules; a higher quantity of microcapsules may be provided by plural thicknesses of fabric, each with a surface coating of microcapsules.
  • Non-woven fabrics may also be thick, for example in a similar fashion to felts. Such fabrics may have microcapsules within their periphery and on their surfaces.
  • the material comprises a carrier material and the microcapsules of the phase-change substance are supported in said carrier material.
  • the carrier material comprises a pulp.
  • the material comprises a substrate and an adhesive securing the microcapsules to the substrate.
  • the substrate may be for example card, cardboard or a plastics or metal foil.
  • the material comprises a foam and the microcapsules of the phase-change substance are disposed within the foam.
  • the material comprises at least first second and third layers of material, said second layer being disposed between said first and third layers, and the phase-change substance being absorbed into the second layer.
  • the material comprises at least first second and third layers of material, said second layer being disposed between said first and third layers, and the phase-change substance being adsorbed onto the second layer.
  • phase-change of the phase-change substance is between solid and liquid.
  • the material further comprises means for reducing heat transfer from said material.
  • Such means may include a reflective or light surface, or a layer of insulating material.
  • the packaging material comprises plural enclosures containing air for reducing heat transfer.
  • the material is sufficiently rigid to be capable of being shaped into a substantially self-supporting structure by a forming process.
  • Forming processes such as vacuum forming, blow or other moulding techniques may thus be used to provide a container, or an internal container to be disposed within a conventional carton or similar.
  • a third aspect of the invention there is provided a method of packaging a product comprising at least partly enclosing said product using a material in accordance with the second aspect of the invention.
  • a material comprising a polymer and a phase-change substance having a phase-change temperature, the arrangement being such that a container made from the said material maintains the temperature of contents of said container at said phase- change temperature.
  • phase-change substance is microencapsulated.
  • phase-change substance may alternatively be un- encapsulated, if for example mixing with the polymer material occurs at below the temperature of the phase change.
  • a container having contents comprising a polymer material incorporating a phase-change substance having a phase-change temperature substantially equal to said given temperature, the arrangement being such that the container maintains the temperature of said contents at said phase-change temperature.
  • phase-change substance is microencapsulated.
  • a sleeve of material for disposition around at least a part of a product, said material incorporating a phase-change substance for maintaining the temperature of the product at substantially the temperature of the phase-change.
  • a container comprising plural walls defining a receptacle for a substance whose ifc i ⁇ eiaiun-; is to be maintained at a desired level, at least some of the walls of the container comprising a material incorporating a phase-change substance having a phase-change temperature substantially at the desired level.
  • phase-change substance is microencapsulated.
  • the at least some walls comprise a non-woven material, and said non-woven material carries the phase-change substance.
  • a method of making a material comprising an open-cell foam material, the foam material defining plural cells, the method comprising disposing a phase-change substance in the cells of the foam material.
  • a ninth aspect of the invention there is provided a method of making a material comprising closed-cell foam material defining plural cells, the method comprising providing a material to be foamed, and foaming the material, wherein the step of foaming includes incorporating a phase-change substance into the closed-cell foam material.
  • a method of forming a material comprising providing polymer granules, providing a microencapsulated phase-change substance, blending the polymer granules and microcapsules of said phase-change substance together, and heating the blended polymer granules and microcapsules of phase-change substance to thereby form said material.
  • a method of forming a material comprising providing granules comprising polymer material and microcapsules of a selected phase-change substance, and heating the blended polymer granules and microcapsules.
  • the method comprises injection moulding said heated blend of polymer granules and microcapsules.
  • the method comprises blow moulding said heated blend of polymer granules and microcapsules.
  • the method comprises extruding said heated blend of polymer granules and microcapsules to form a web.
  • the method comprises stretching the web to form a film.
  • a method of packaging a product comprising providing a packaging material, and printing onto said packaging material using microcapsules of phase-change substance selected to have a phase-change temperature for maintaining said product in a desired condition.
  • Figure 1 shows a cross-sectional view of a portion of a woven fabric incorporating a phase-change substance
  • Figure 2 shows a cross-sectional view of a portion of a non-woven fabric incorporating a phase-change substance
  • Figure 3 shows a cross-sectional view of a portion of a multi-layer material with two outer layers sandwiching a layer of a phase-change substance
  • Figure 4 shows a cross-sectional view of a portion of a cellular cushion- type material incorporating a phase-change substance
  • Figure 5 shows a modification of the embodiment of Figure 4;
  • r-igure 6 shows a cross-sectional view of a portion of a twin-wall material incorporating a phase-change substance;
  • Figure 7 shows an embodiment of a foam material incorporating a phase- change substance
  • Figure 8 shows an enlarged view of a portion of the foam material of
  • Figure 9 shows a perspective view of an open topped food container of a material incorporating a phase-change substance
  • Figure 10 shows a perspective view of a sandwich container of a material incorporating a phase-change substance
  • Figure 11 shows a perspective view of a bottle of a polymer material incorporating a phase-change substance.
  • a woven fabric 1 consists of woven threads 2,3,4, as known to those skilled in the art.
  • a phase-change substance 10 is held in the interstices formed by the threads of the fabric and shown illustratively in the figure.
  • the phase-change substance is a paraffin wax which is solid at the lower temperature, and the phase-change is to a liquid at the higher temperature.
  • a non-woven fabric 60 consists of a felt-like sheet or web of fibres/ filaments 61 bonded together by mechanically entangling them.
  • the fibres or filaments are entangled thermally and/or chemically.
  • the sheet is thus flat and porous, and is made directly from separate fibres or from molten plastic or plastic film. There is no requirement to convert the fibres/filaments to yarn.
  • the fabric shown is flexible and thin, for example 1-2 mm thick.
  • microcapsules of a phase-change substance for example in the form of paraffinic microcapsules, are adsorbed onto the non- woven fabric.
  • the fabric is thicker, for example 2cm of more.
  • the phase-change substance is carried within the non-woven fabric, and may be absorbed into the fabric after manufacture of the fabric, or included in the fabric during its manufacture.
  • phase-change substance is primarily determined by the application to which the packaging is to be put. Apart from waxes and the like, one useful composition is that disclosed in US Patent 6146546 in which, by adjusting the proportions of particular component materials, a phase-change between solid and liquid can be selected across a wide range of temperatures. I will be clear to those skilled in the art that other phase-change substances may be used, including waxes and lipids.
  • a sheet packaging material 20 consists of two outer layers 21 ,22, sandwiching a fabric 23.
  • the outer layers 21 ,22 may be polyester, polypropylene, polyvinyl chloride, PET or another polymeric or non- polymeric material selected according to the constraints of the application to which the packaging material is to be put. More particularly, the skilled person will select materials for the outer layers according to the intended temperature o1 use, and according to the strength needed.
  • One preferred embodiment uses pulp materials for one or both outer layers, as this allows forming by a number o inexpensive techniques, as well as providing both mechanical and thermal insulation.
  • the fabric 23 carries a phase-change substance and may be woven as described with reference to Figure 1 herein or non-woven as described with reference to Figure 2 herein.
  • the material of the outer layers 21 ,22 may be selected to contain liquid within the sandwich formed by the outer layers 21 ,22.
  • the sheets are sealed together to form a quilted type of structure.
  • the fabric 23 may be continuous through the regions where the sheets 21 ,22 are sealed together or may only be disposed within the spaces formed between the sealed regions.
  • Figure 4 shows another embodiment of a packaging material in accordance with the invention.
  • the packaging material 30 of Figure 4 is somewhat similar to known air cellular cushioning material, consisting of two webs of plastics, such as polyethylene, which are welded together at intervals to define bubble-shaped spaces.
  • the spaces 33 contain a phase-change substance.
  • FIG. 4 The particular configuration shown in Figure 4 is asymmetrical as the lower sheet 31 is shown in a generally planar configuration, with the upper sheet 32 extending away from it to define the container spaces 33.
  • Other arrangements are possible.
  • a symmetrical construction in which the "bubbles" extend both upwardly and downwardly from the intermediate web portions, is also envisaged.
  • the packaging material 40 of Figure 5 has an arrangement similar to that described with respect to Figure 4 but with the generally planar face of the lower (as shown) sheet 31 in contact with an insulating layer 41.
  • the layer 41 may consist of a pulp material, such as paper pulp, a foam material, for example polystyrene foam material, or alternatively it may consist of a double-walled structure containing air, or indeed a vacuum, to provide reduced transfer of heat to the ambient.
  • FIG. 6 A further embodiment is shown in Figure 6.
  • a corrugated web of plastics material 51 is disposed between upper and lower (as shown) plastics sheets 52,53.
  • the upper and lower sheets 52,53 contact respectively the peaks and troughs of the corrugations of the web 51 so as to sandwich the web and to define lower compartments 54 between the web and the lower sheet 53 and upper compartments 55 between the web and the upper sheet 52.
  • the particular profile of corrugation shown in Figure 6 is a generally triangular or saw-tooth configuration. It will be understood by those skilled in the art that other corrugation profiles could be provided, for example curved profiles.
  • the packaging material consists of first and second opposed sheets which sandwich a third layer.
  • the third layer defines, together with the first sheet, a plurality of first prisms containing the phase- change substance, for example pyramids.
  • the third layer further defines, with the second sheet, a plurality of second prisms that contain air.
  • the phase-change substance may be microencapsulated, or not according to the desired application.
  • the phase-change substance, in microcapsule form is disposed on the surface of a web, for example a metal foil.
  • a technique for doing this may be a type printing process; the microcapsules may be coloured.
  • the resulting product is useable for sealing articles such as yoghurt pots, or for wrapping ice creams and the like.
  • the phase-change substance is incorporated into a polymer packing film or a product such as a bottle or other container made of a polymer material.
  • the phase-change substance may be microencapsulated.
  • the granules of polymer are either pre-blended with the microcapsules of phase-change substance or the polymer granules are mixed with ' the microcapsules of phase-change substance for blending.
  • the granules are then heated to the required temperature and either fed to an extruding device or to a moulding device as appropriate. It is also possible to blend the granules of polymer material with the phase-change substance without micro-encapsulation, for example if the blending is below the phase-change temperature.
  • the polymer is extruded, with the microcapsules of phase-change substance carried in it, and then the film is formed by stretching in the usual way. Depending on the required characteristics of the material it may be either monoaxially or biaxially stretched.
  • injection moulding blow moulding, vacuum forming or a combination of these, may be employed.
  • the microcapsules of the phase-change substance may alternatively be supported in a carrier material.
  • the carrier material may include an adhesive for securing the microcapsules to a substrate such as cardboard or a plastics web.
  • the carrier material may be a conventional packaging material such as card.
  • a foam material 60 comprising open cells is impregnated with the phase-change substance.
  • the phase-change substance will be provided in a liquid form to allow it to be soaked into the foam or adsorbed into the cells of the foam so that when the foam is cooled, the phase-change substance becomes solid.
  • the area 61 of the foam is an exemplary portion of the foam which is shown more clearly in Figure 8. Referring to Figure 8, it will be seen that the foam has a three dimensional structure of cellular walls 71 which define, here open cells 72, the open cells 72 containing the phase-change substance.
  • the foam is a closed cell material.
  • the phase-change substance it is necessary to provide the phase-change substance during the manufacture of the foam since the closed cellular nature would prevent the phase-change substance entering tne cells after manufacture.
  • One method of such manufacture is to use the phase-change substance as part of the foaming process.
  • the material constituting the foam may contain microencapsulated phase-change substance.
  • the microcapsules may be the sole presence of the phase-change substance, or there may be an additional presence of the phase-change substance in the cells of the foam.
  • packaging materials described may be provided in either a substantially flexible or a substantially rigid form. The choice will largely depend upon the needs of the device, object or substance that is being packaged.
  • the packaging material of the invention could be used as the primary packaging of the ice cream.
  • primary packaging it is meant that the icecream itself would be in contact with the packaging material rather than an intervening wrapping or packaging being provided.
  • the packaging material for example, where a pre-existing container were provided, then it would be possible either to use the packaging material as an external package purely for the sake of thermal conditions, or alternatively to use the packaging material additionally to provide protection for the object being packaged.
  • the embodiments of Figures 5,6 and 7 would be suitable for this.
  • a food container 90 for such applications is shown is shown in Figure 9. It consists of a moulded plastics generally cylindrical open container with a circular base wall 91 and a generally cylindrical sidewall extending from the base wall at a draft angle suitable for moulding.
  • the piastics material of the container incorporates a phase-change substance to provide a desired temperature maintenance.
  • a lid of the same material may be provided.
  • a similar stack of containers but having high temperature phase-change substances e.g. 55-80°C
  • high temperature phase-change substances e.g. 55-80°C
  • heated food can likewise enable heated food to be dispensed.
  • the invention is not restricted to containers of polymer materials or to containers having any particular wall structure.
  • the container may have other material structures - for example similar to the material described with reference to Figure 5 or 6, and may additionally have an insulating layer or sleeve.
  • Pre-packed food - e.g. sandwiches may be packed in containers made to incorporate appropriate phase-change substances, and stored at the appropriate high or low temperature.
  • a suitable container 100 is shown in Figure 10, and is made from a material similar to that shown in Figure 5, by a vacuum forming process. It has walls 101-104 and a hinged front wall 105, and is dimensioned to receive a diagonally cut sandwich. Other examples may have no hinged wall, but instead be closed by sealing a suitable sized portion of plastics web over the aperture of the box. The web may incorporate a phase-change substance.
  • an insulation portion for example a label or outer coating. This may be of particular importance if the Too ⁇ is very not, to avoid injury.
  • a reflective inner or outer coating may be included where desirable.
  • Figure 11 shows a bottle 110 of polymer material incorporating a phase- change substance as described herein for keeping a drink cool.
  • the bottle is otherwise conventional.
  • Embodiments e.g. that of Figure 4, or the monoaxially stretched polymer carrying the phase-change substance may be provided as a heat-shrink material, at the same time possibly affording protection due to the bubbles.
  • a heat-shrink packaging material could be applied to a pre-existing package and then heat applied to shrink to the pre-existing package.
  • the packaging material described above are the provision of sleeves from the material, for example sized to be disposed about a bottle or can or over a pack of sandwiches to keep the sandwiches at a constant temperature.
  • the sleeve, or a container made of or including the packaging material may be dimensioned to receive a chilled food container, thereby keepinc the food at a desired and safe temperature until it is heated prior to consumption.
  • Packages may also be used to protect biological material, such as human tissue for use in surgical processes, and including blood.
  • a container made of or from the packaging material may be dimensioned to receive a chilled food product which incorporates a self-heating device.
  • the food or the chilled food product is maintained at a predetermined temperature - not necessarily for the preservation of the food itself, but so that the self-heating device will always be required to operate from the same basic temperature. This means that the self-heating device achieves the desired effect on the food without drying out or otherwise deleterious effects.
  • phase-change substance in embodiments where the phase-change substance is not microencapsulated, it may include a gelling agent to reduce the effect of spillage
  • a multi-compartment array made from foam or polymer material including the phase-change substance, each of the compartments being specially adapted to receive a vial, bottle or other container of pharmaceutical or biological material. This is of particular interest for transport of blood samples, vaccines and the like.
  • Embodiments of containers in accordance with the invention may be made to be rugged and to provide physical protection to their contents.
  • Food containers are, in some embodiments, made to be single use - but it is envisaged that even single use containers could be re-used a few times by the consumer, in a similar way to ice-cream containers.
  • the containers are made for permanent re-use, similar to cool boxes.
  • phase-change substance might be used according to the desired conditions. Specifically, it is envisaged to use waxes, lipids and fats where appropriate, and also to use materials that change phase between liquid and gas, or which sublime from solid to gas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Packages (AREA)

Abstract

Cette invention se rapporte à un matériau d'emballage dans lequel est incorporée une substance à changement de phase et qui est de préférence micro-encapsulé. Ce matériau peut être conçu sous la forme d'un récipient et, dans certains modes de réalisation, il est constitué d'un matériau polymère. Dans d'autres modes de réalisation, un matériau en pâte est utilisé comme support pour la substance à changement de phase.
PCT/GB2002/003002 2001-06-29 2002-06-28 Materiau de regulation thermique Ceased WO2003002424A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0116005A GB0116005D0 (en) 2001-06-29 2001-06-29 Packaging material
GB0116005.0 2001-06-29

Publications (2)

Publication Number Publication Date
WO2003002424A2 true WO2003002424A2 (fr) 2003-01-09
WO2003002424A3 WO2003002424A3 (fr) 2003-03-06

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Application Number Title Priority Date Filing Date
PCT/GB2002/003002 Ceased WO2003002424A2 (fr) 2001-06-29 2002-06-28 Materiau de regulation thermique

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WO (1) WO2003002424A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011116076A1 (fr) * 2010-03-17 2011-09-22 Nestec S.A. Emballage comprenant des matériaux à changement de phase
WO2013030360A3 (fr) * 2011-09-02 2013-12-19 Dublin Institute Of Technology Système de matériau à changement de phase modulaire
GB2524159A (en) * 2014-02-05 2015-09-16 Martrop Shipping container for food products
GB2551115A (en) * 2016-05-31 2017-12-13 Laminar Medica Ltd A thermally insulated container
WO2018072934A1 (fr) 2016-09-29 2018-04-26 Basf Se Matériau d'emballage et son procédé de fabrication
CN110157088A (zh) * 2019-05-30 2019-08-23 江苏共创人造草坪股份有限公司 一种可控温、耐候型人造草坪填充橡塑颗粒及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756958A (en) * 1987-08-31 1988-07-12 Triangle Research And Development Corporation Fiber with reversible enhanced thermal storage properties and fabrics made therefrom
US5007478A (en) * 1989-05-26 1991-04-16 University Of Miami Microencapsulated phase change material slurry heat sinks
JP2988765B2 (ja) * 1991-10-29 1999-12-13 三菱製紙株式会社 蓄冷材
US5637389A (en) * 1992-02-18 1997-06-10 Colvin; David P. Thermally enhanced foam insulation
US5366801A (en) * 1992-05-29 1994-11-22 Triangle Research And Development Corporation Fabric with reversible enhanced thermal properties
US5804297A (en) * 1995-07-05 1998-09-08 Colvin; David P. Thermal insulating coating employing microencapsulated phase change material and method
WO2001022779A1 (fr) * 1999-09-22 2001-03-29 Frisby Technologies, Inc. Gel utilisable au four a micro-onde contenant une matiere a changement de phase microencapsulee

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011116076A1 (fr) * 2010-03-17 2011-09-22 Nestec S.A. Emballage comprenant des matériaux à changement de phase
CN103038143A (zh) * 2010-03-17 2013-04-10 雀巢产品技术援助有限公司 具有相变材料的包装
WO2013030360A3 (fr) * 2011-09-02 2013-12-19 Dublin Institute Of Technology Système de matériau à changement de phase modulaire
GB2524159A (en) * 2014-02-05 2015-09-16 Martrop Shipping container for food products
GB2551115A (en) * 2016-05-31 2017-12-13 Laminar Medica Ltd A thermally insulated container
GB2551115B (en) * 2016-05-31 2021-02-10 Laminar Medica Ltd A thermally insulated container
WO2018072934A1 (fr) 2016-09-29 2018-04-26 Basf Se Matériau d'emballage et son procédé de fabrication
CN110157088A (zh) * 2019-05-30 2019-08-23 江苏共创人造草坪股份有限公司 一种可控温、耐候型人造草坪填充橡塑颗粒及其制备方法

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Publication number Publication date
WO2003002424A3 (fr) 2003-03-06
GB0116005D0 (en) 2001-08-22

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