EP1185466B1 - Materiau d'enveloppage flexible, particulierement pour l'emballage, et procede d'elaboration - Google Patents

Materiau d'enveloppage flexible, particulierement pour l'emballage, et procede d'elaboration Download PDF

Info

Publication number
EP1185466B1
EP1185466B1 EP00935063A EP00935063A EP1185466B1 EP 1185466 B1 EP1185466 B1 EP 1185466B1 EP 00935063 A EP00935063 A EP 00935063A EP 00935063 A EP00935063 A EP 00935063A EP 1185466 B1 EP1185466 B1 EP 1185466B1
Authority
EP
European Patent Office
Prior art keywords
substance
wrap
expandable
film
energy
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.)
Expired - Lifetime
Application number
EP00935063A
Other languages
German (de)
English (en)
Other versions
EP1185466A1 (fr
Inventor
Giorgio Trani
Marion Sterner
Giovanni Manfre'
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1185466A1 publication Critical patent/EP1185466A1/fr
Application granted granted Critical
Publication of EP1185466B1 publication Critical patent/EP1185466B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D81/02—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 specially adapted to protect contents from mechanical damage
    • B65D81/03—Wrappers or envelopes with shock-absorbing properties, e.g. bubble films

Definitions

  • This invention relates to a flexible packaging wrap according to the preamble of claim 1 and a method for its production.
  • Wraps are known formed from two flexible films of air-impermeable material welded together face to face along closed lines defining a plurality of small air-filled blisters forming a sort of cushion or bubbles able to protect delicate objects wrapped in the wrap against impact and scratching.
  • This bubble wrap is formed by making a flexible extensible film adhere to a roll, the lateral surface of which comprises a plurality of generally hemispherical cavities connected to a suction pump.
  • the extensible film heated and made to adhere to the inner surface of said cavities, is then welded face to face to a second flexible film with which the first forms hemispherical blisters, within which air remains trapped.
  • bubble wrap is formed from continuous film and is hence itself continuous and can be wound into reels, of dimensions depending only on its physical bulk.
  • a drawback of this known bubble wrap is that its production requires very complicated equipment and generally laborious machining of the rolls, together with costly heating and suction systems, all of which substantially affect the final cost of the product obtained.
  • a further drawback is that the total thickness of the wrap produced is substantially equal to the height of the blisters, which varies from 2 to 5 mm, hence in the case of 5 mm blisters a reel of about 60 cm diameter contains less than 60 metres of wrap, with obvious and often serious space requirement problems due to the considerable volume/weight ratio.
  • Flexible wraps are also known consisting of a layer of expanded material having a prefixed thickness. For their production they require less complex techniques and equipment which have lower costs for realizing the final product, but they don't solve the drawback of space, due to the high volume/weight ratio.
  • Document EP 0 170 229 discloses a flexible packaging wrap provided with an irreversibly expandable substance.
  • US-5.846.622-A discloses a heat-expandable solid image forming sheet including a base sheet, a heat-expandable layer formed of a material containing foaming particles on the base sheet and capable of expanding when heated, and a protective layer formed by a coating process on the heat-expandable layer.
  • the expandable layer can form strips containing text in braille characters to be applied on books and utensiles.
  • EP-A-0511716 discloses expandable films to be used in the automotive industry or for similar purposes and could not be used in traditional packaging machines.
  • An object of the invention is to provide a flexible wrap for packaging, provided over its entire surface or part of it with elastically extensible material acting as protective cushion for the objects wrapped in said wrap.
  • a further object of the invention is to provide a flexible wrap for packaging which prior to its final use is of small overall size, such as to virtually totally eliminate all the current problems connected with its storage and transport from the place of utilization.
  • a further object of the invention is to improve the performance obtainable from flexible wraps by also providing it with thermal, acoustic and electromagnetic barrier properties, together with increased protective properties to the extent of making it multi-purpose.
  • the flexible wrap according to an embodiment not forming part of the invention in the "bubble” embodiment consists of two flexible films 2,4 impermeable to air or other gas, and defined hereinafter as the support film 2 and the extensible film 4.
  • the support film 2 can for example consist of polyester, high density polyethylene (HDPE), paper with polyester, polyethylene, polypropylene or polyvinylchloride backing, or aluminium with polyester, polyethylene or polypropylene backing.
  • HDPE high density polyethylene
  • the total thickness of the support film 2 varies preferably from 20 to 100 ⁇ , depending on the type of material and of the performance required of the bubble wrap, although different thickness can be used with particular materials and for particular applications.
  • the extensible film 4 of much greater deformability than the support film 2 is preferably of low density polyethylene (LDPE), polyester or polypropylene, depending on the nature of the support film 2 and on the viscoelastic and rheological characteristics of the extensible film 4.
  • LDPE low density polyethylene
  • polyester or polypropylene depending on the nature of the support film 2 and on the viscoelastic and rheological characteristics of the extensible film 4.
  • the thickness of the extensible film 4 varies preferably from 20 to 50 ⁇ but again in this case different thickness can be used with particular materials and for particular applications.
  • the two films 2, 4 are joined together along closed lines defining small blisters or cells 6, which can be of any size and any shape, and in particular be circular, polygonal or elongate.
  • the two films 2, 4 can be joined together by thermal, high frequency, ultrasonic or infrared welding, or by using suitable adhesives compatible with the film constituent materials.
  • suitable adhesives are preferably epoxy, phenolic, acrylic, formaldehyde, anaerobic, cyanoacrylate, elastomeric, silicone, polyurethane, polysulphide or inorganic resins, or non-chemical resins providing physical-mechanical adhesion.
  • Each of the blisters 6 houses in its interior a substance 8 which following administration of energy expands to inflate the blister.
  • the substance 8 is for example of sublimable type, ie is able to pass from the solid state directly to the gaseous state when its transformation temperature is attained.
  • sublimable substance examples include "sublimation dyes”, isoquinone-5-carboxynitrile, some trioxanes and siloxanes, and p-dichlorobenzene, which all have the property of passing from the gaseous state on attaining the transformation temperature, which varies from about 53°C for p-dichlorobenzene to about 135°C for isoquinone-5-carboxynitrile, and at a rate which is lowest for p-dichlorobenzene and highest for isoquinone-5-carboxynitrile.
  • sublimation dyes isoquinone-5-carboxynitrile, some trioxanes and siloxanes
  • p-dichlorobenzene which all have the property of passing from the gaseous state on attaining the transformation temperature, which varies from about 53°C for p-dichlorobenzene to about 135°C for isoquinone-5-carboxynitrile, and at a rate
  • the sublimable substance 8 possibly already enclosed within an expandable material (for example microspheres), is applied to the support film 2 preferably by stamping it thereon under register control such as to involve only the regions intended to form the blisters 6 and leave free thin bands bounding said blisters, at which the support film 2 and the extensible film 4 are to be joined together.
  • an expandable material for example microspheres
  • Figure 5 shows schematically the process for producing the bubble wrap.
  • the support film 2 unwound from a reel 10 receives the applied sublimable substance 8 in a stamping station 12 under register control, and is then joined in a welding station 14 to the extensible film 4 unwound from a reel 16.
  • a second station is provided (not shown on the drawings) in which the adhesive is applied to the support film 2 and to the extensible film 4 preferably under register control.
  • the composite film 18 obtained in this manner is then wound into a reel 20 to be then stored and/or sent to its place of use.
  • the total thickness of the film 18 is substantially equal to the sum of the thicknesses of the two films 2 and 4, it is apparent that the reel 20 obtained, although of dimensions substantially equal to those of usual transportable reels, contains a composite film of length considerably greater than that of traditional bubble wrap.
  • a reel of 60 cm diameter contains about 1900 metres of bubble wrap having a thickness of 150 ⁇ .
  • the composite film 18 In the location in which the composite film 18 is used, it is subjected to energy administration, for example heat, which causes the substance 8 contained in the blisters to expand and inflate the blisters, transforming them into bubbles. During this stage the administered heat also causes the extensible film to soften, so facilitating stretching.
  • energy administration for example heat
  • the substance 8 contained in the blisters to expand and inflate the blisters, transforming them into bubbles.
  • the administered heat also causes the extensible film to soften, so facilitating stretching.
  • energy of other types can be administered depending on the type of expandable substance and/or any activators used for the sublimation process.
  • the expandable substance confined within the closed blisters may be of foaming type, ie able to increase in volume following a chemical reaction by expansion agents which by increasing in volume cause cells to form having walls which solidify by cross-linking, polymerization or phase transition as in normal manufacturing processes for expanded materials or foams.
  • expansion agents which by increasing in volume cause cells to form having walls which solidify by cross-linking, polymerization or phase transition as in normal manufacturing processes for expanded materials or foams.
  • the energy is administered directly to the expansion agent which on being heated or activated initiates gas formation with consequent volume increase and structural change to a solid material.
  • Usable polymer matrices are liquids, including high viscosity liquids, or gels, such as formaldehydes or epoxy, polyester, polyurethanic, acrylic resins.
  • the expansion agent can be for example sodium bicarbonate, azodicarbonamide or its derivatives, benzene suplphonitryl hydrazide, tetra amines, benzene sulphonylhydrazide, urea derivatives or organic acids.
  • sodium bicarbonate this reacts with water in accordance with the reaction. Na 2 CO 3 + H 2 O ⁇ CO 2 (gas) + 2NaOH the gas developed by the reaction and confined within the blisters then causing the matrix to increase in volume.
  • the water can be fed on command by rupture of microcapsules containing it, and which are introduced into the blisters together with the expansion agent.
  • Reaction inhibitors and other known additives to prevent the substance being transformed into gas or expanding below certain values of administered energy can be mixed with the expansion agent to better control the determined expansion of the expanding substance.
  • the expansion agent is applied to the support film 2 preferably by stamping it thereon under register control, the extensible film 4 then being applied to the support film 2 by thermowelding along the edges of the shapes previously stamped under register control.
  • Each blister could also contain in its interior more than one expandable substance, with different characteristics, and each activated by a different type of administered energy.
  • one or other substance can be expanded simply by varying the type of activation energy, so that the inflated blisters obtained are filled with expanded substances of different characteristics suitable for the particular use to which the wrap is to be put.
  • the expanded substance contained within the inflated blisters can offer resistance to impact, to light, to moisture, to noise, to electromagnetic waves and to other pollutant agents.
  • the wrap of the invention can consequently be considered a multi-purpose bubble wrap.
  • the expandable substance confined within the closed blisters is contained in microcapsules 22, each comprising a membrane of extensible material and an agent which expands on command, consisting for example of particular hydrocarbons such as isobutane, isopropane and their mixtures.
  • the expandable membrane can consist for example of vinylidene chloride and acrylonitrile copolymers, or acrylonitrile copolymers.
  • the expandable substance contained in the microcapsules 22 expands to inflate the blister which contains it.
  • microcapsules 22 may be directly applied to the support film 2 (see Figures 8 and 9) in accordance with the predetermined arrangement.
  • the membranes themselves constitute the blisters, which remain securely fixed to the support film 2 by a physical-chemical adhesion mechanism of the most convenient type, in particular by an elastic adhesive, which ensures that the capsule remains fixed during its expansion and when expansion is complete.
  • the temperature at which expansion begins can vary, depending on the expansion agent used, from a minimum of 80°C to more than 130°C.
  • each capsule can contain more than one type of expandable substance in its interior, to be selectively activated by administering different types of energy.
  • the microcapsules may have the membrane tearable following energy administration.
  • they comprise one of the two components of the expandable substance, which component, following the break of the membrane, comes into touch with the other component forming the matrix inside which the microcapsules are placed and which, following this touch, cause the expansion.
  • the microcapsules 22 are directly applied to the support film 2, the same matrix which forms the second component of the expandable mixture, may be provided with adhesive properties in order to couple the two films 2 and 4 before and after the expansion process.
  • this substance doesn't affect localized areas of the wrap but the entire surface thereof.
  • the wrap which after its realization is very thin (see Figure 10) increases of volume, after energy administration, in the areas where this is required. If energy is administered to the entire surface of the wrap, the entire wrap increases of thickness (see Figure 11) whereas if this energy administering occurs under register control (for example by diaphragm or filters) only the affected areas will expand.
  • the production of the wrap according to the invention in this embodiment may occur both by extruding the plastic material forming the film and which already houses inside it the expandable substance (see Figures 12 and 13), if necessary housed in microcapsules 22 (see Figures 14 and 15), and by applying such an expandable substance 8 between the two films 2 and 4 already made (see Figures 16 and 17).
  • the expandable substance may be housed in microcapsule 22 (see Figures 18 and 19) and may consist of one or more different kinds and the energy or the different kinds of energy may be administered over the entire surface of the wrap or, under register control, over the only parts where the expansion should be caused.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Buffer Packaging (AREA)

Claims (26)

  1. Enveloppe d'emballage flexible, appropriée pour un usage dans des machines d'emballage traditionnelles, caractérisée en ce qu'elle est constituée d'au moins un film (2) prévu sur toute la surface avec au moins une substance (8) irréversiblement extensible par administration d'énergie.
  2. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) est appliquée audit film (2).
  3. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) est incluse dans ledit film (2).
  4. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) est contenue dans des microsphères (22) équipées d'une membrane extensible.
  5. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) consiste en au moins un hydrocarbure gazeux.
  6. Enveloppe comme revendiquée à la revendication 4, caractérisée en ce que la membrane des microsphères (22) consiste en au moins un copolymère d'acrylonitrile, chlorure de vinylidène, ou un mélange de ceux-ci.
  7. Enveloppe comme revendiquée à la revendication 2, caractérisée en ce qu'elle consiste en deux films (2, 4) dans lesquels ladite substance extensible (8) est placée.
  8. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ledit film (2) est muni de plusieurs substances (8) sélectivement extensibles par administration d'énergie de différentes caractéristiques.
  9. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ledit film (2) consiste en au moins une substance incluse dans le groupe comprenant des polyesters, des polyoléfines, des polyamides et leurs dérivés, ladite substance étant si nécessaire couplée à un matériau de renfort inclus dans le groupe comprenant des matériaux en papier et des matériaux laminés en métal.
  10. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) est du type activable par énergie incluse dans le groupe comprenant l'énergie mécanique, l'énergie thermique, l'énergie lumineuse, l'énergie ultrasonique, l'énergie radiante, l'énergie électromagnétique, l'énergie électronique.
  11. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) consiste en une substance sublimable.
  12. Enveloppe comme revendiquée à la revendication 11, caractérisée en ce que ladite substance sublimable est incluse dans le groupe comprenant le p-dichlorobenzène, l'isoquinone 5-carboxynitrile, le trioxane, le siloxane, une substance connue comme des colorants de sublimation et le mélange de ceux-ci.
  13. Enveloppe comme revendiquée à la revendication 1, caractérisée en ce que ladite substance extensible (8) consiste en une substance moussante comprenant une matrice liquide et un agent d'expansion.
  14. Enveloppe comme revendiquée à la revendication 13, caractérisée en ce que la matrice liquide consiste en une substance incluse dans le groupe qui comprend l'eau, les formaldéhydes, les résines epoxy, les résines polyesters, les résines polyuréthannes, les résines acryliques.
  15. Enveloppe comme revendiquée à la revendication 13, caractérisée en ce que l'agent d'expansion de la substance moussante est inclus dans le groupe qui comprend le bicarbonate de sodium, l'azodicarbonamide et ses dérivés, le benzène sulphonitrylhydrazide, le benzène sulphonylhydrazide ou des dérivés d'urée.
  16. Enveloppe comme revendiquée à la revendication 13, caractérisée en ce que l'agent d'expansion est du type réagissant spontanément avec la matrice liquide et est contenu dans des microsphères (22) ayant la membrane cassable suite à l'administration d'énergie.
  17. Enveloppe comme revendiquée à la revendication 13, caractérisée en ce que la substance moussante comprend en outre au moins un inhibateur d'agent de la réaction d'expansion.
  18. Procédé pour élaborer une enveloppe d'emballage flexible appropriée pour un usage dans des machines d'emballage traditionnelles, comme revendiquée dans l'une ou plusieurs des revendications 1 à 17, caractérisé en ce qu'au moins une substance (8) est couplée à toute la surface d'un film (2), ladite substance (8) étant irréversiblement extensible par administration d'énergie.
  19. Procédé comme revendiqué à la revendication 18, caractérisé en ce que ladite substance extensible (8) est appliquée à toute la surface du film (2).
  20. Procédé comme revendiqué à la revendication 18, caractérisé en ce que ladite substance extensible (8) est introduite dans le matériau formant le film (2) avant son extrusion.
  21. Procédé comme revendiqué à la revendication 18, caractérisé en ce qu'au film (2) est appliquée une substance contenant des microsphères (22) comprenant une membrane extensible, à l'intérieur de laquelle ladite substance extensible (8) est contenue.
  22. Procédé comme revendiqué à la revendication 20, caractérisé en ce que ladite substance extensible (8) consiste en des microsphères (22) comprenant une membrane extensible, à l'intérieur desquelles ladite substance extensible est contenue.
  23. Procédé comme revendiqué à la revendication 21, caractérisé en ce qu'après avoir appliqué ladite substance extensible (8) audit film (2), un autre film (4) est appliqué audit film.
  24. Procédé comme revendiqué à la revendication 21, caractérisé en ce que les microsphères extensibles (22) sont couplées au film (2) diffusé à l'intérieur d'une matrice constituée par une substance adhésive.
  25. Procédé comme revendiqué à la revendication 21, caractérisé en ce que les microsphères extensibles (22) sont couplées au film (2) diffusé à l'intérieur d'une matrice constituée par un gel.
  26. Procédé comme revendiqué à la revendication 18, caractérisé par l'administration d'énergie sous commande de registre audit film (2) auquel ladite substance extensible est couplée.
EP00935063A 1999-05-18 2000-05-18 Materiau d'enveloppage flexible, particulierement pour l'emballage, et procede d'elaboration Expired - Lifetime EP1185466B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITVE990023 1999-05-18
IT1999VE000023A IT1311791B1 (it) 1999-05-18 1999-05-18 Nastro flessibile a bolle, particolarmente per imballaggi e metodo perla sua realizzazione.
PCT/EP2000/004502 WO2000069747A1 (fr) 1999-05-18 2000-05-18 Materiau d'enveloppage flexible, particulierement pour l'emballage, et procede d'elaboration

Publications (2)

Publication Number Publication Date
EP1185466A1 EP1185466A1 (fr) 2002-03-13
EP1185466B1 true EP1185466B1 (fr) 2003-08-13

Family

ID=11424450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00935063A Expired - Lifetime EP1185466B1 (fr) 1999-05-18 2000-05-18 Materiau d'enveloppage flexible, particulierement pour l'emballage, et procede d'elaboration

Country Status (8)

Country Link
EP (1) EP1185466B1 (fr)
AT (1) ATE247045T1 (fr)
AU (1) AU5068100A (fr)
DE (1) DE60004524T2 (fr)
DK (1) DK1185466T3 (fr)
ES (1) ES2204608T3 (fr)
IT (1) IT1311791B1 (fr)
WO (1) WO2000069747A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272647A1 (fr) 2009-07-10 2011-01-12 Nordenia Technologies GmbH Procédé de fabrication d'une feuille extensible à monocouche ou multicouche

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1315461B1 (it) * 1999-08-10 2003-02-11 Giorgio Trani Materiale filmabile con caratteristiche modificabili selettivamente.
US20100126119A1 (en) * 2008-11-25 2010-05-27 Dave Ours Heat activated support system
US9657200B2 (en) 2012-09-27 2017-05-23 Henkel IP & Holding GmbH Waterborne adhesives for reduced basis weight multilayer substrates and use thereof
MX369481B (es) 2010-09-10 2019-11-11 Henkel IP & Holding GmbH Adhesivo mejorado que tiene propiedades aislantes.
WO2015084422A1 (fr) 2013-12-05 2015-06-11 Massachusetts Institute Of Technology Objet de fabrication additive à changement de forme prévue codé
US10513089B2 (en) 2014-10-08 2019-12-24 Massachusetts Institute Of Technology Self-transforming structures
US11052597B2 (en) 2016-05-16 2021-07-06 Massachusetts Institute Of Technology Additive manufacturing of viscoelastic materials
US10633772B2 (en) 2017-01-12 2020-04-28 Massachusetts Institute Of Technology Active woven materials
US10549505B2 (en) 2017-01-12 2020-02-04 Massachusetts Institute Of Technology Active lattices
EP3600839A1 (fr) 2017-04-04 2020-02-05 Massachusetts Institute Of Technology Fabrication additive dans un environnement sur support de gel
MX2019014565A (es) 2017-07-18 2020-02-07 Henkel IP & Holding GmbH Calentamiento dielectrico de composiciones espumables.
MX2020001943A (es) 2017-08-25 2020-09-28 Henkel IP & Holding GmbH Proceso para formar bolsa y empaque ecologicamente amigables protectores ecologicos y productos hechos de los mismos.
EP3527361A1 (fr) * 2018-02-16 2019-08-21 Henkel AG & Co. KGaA Procédé de fabrication d'un substrat multicouche
EP3880435B1 (fr) 2018-11-12 2024-03-27 Össur Iceland EHF Système de fabrication additive et composants correspondants pour les matériaux élastomères
WO2021097042A1 (fr) 2019-11-12 2021-05-20 Ossur Iceland Ehf Doublure de prothèse ventilée
MX2022007151A (es) 2019-12-11 2022-08-10 Pregis Innovative Packaging Llc Lienzo inflable-desinflable.
MX2023000170A (es) 2020-07-01 2023-04-05 Pregis Innovative Packaging Llc Empacado con materiales de sellado que tienen diferentes condiciones de sellado.
JP2023539419A (ja) * 2020-07-31 2023-09-14 プレジス イノベーティブ パッケージング エルエルシー 膨張材コンポーネントのその場での組合せによる膨張可能なウェブ
DE102023107967A1 (de) 2023-03-29 2024-10-02 Frank Dörmer Verfahren zur herstellung eines verpackungsprodukts sowie verpackungsprodukt

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616158A (en) * 1968-09-09 1971-10-26 Louis C Rubens Cushion-packaging material
BE754276A (fr) * 1969-08-02 1970-12-31 Thedieck Reiner Materiau composite
DE2043418A1 (en) * 1970-09-02 1972-03-16 Marburger Tapetenfabrik J.B. Schäefer GmbH &Co KG, 3570 Kirchhain Plastics strip material - with embossed pattern of foamed plastic on one or both faces
FR2446176A1 (fr) * 1979-01-15 1980-08-08 Remy Jean Pierre Materiau d'emballage et de calage enveloppant souple et son procede de fabrication
DE3428471C2 (de) * 1984-08-02 1986-09-11 Erwin Behn Verpackungsbedarf Gmbh, 4150 Krefeld Folienverbund

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272647A1 (fr) 2009-07-10 2011-01-12 Nordenia Technologies GmbH Procédé de fabrication d'une feuille extensible à monocouche ou multicouche

Also Published As

Publication number Publication date
ITVE990023A1 (it) 2000-11-18
AU5068100A (en) 2000-12-05
ES2204608T3 (es) 2004-05-01
ATE247045T1 (de) 2003-08-15
WO2000069747A1 (fr) 2000-11-23
DK1185466T3 (da) 2003-12-08
EP1185466A1 (fr) 2002-03-13
DE60004524D1 (de) 2003-09-18
IT1311791B1 (it) 2002-03-19
DE60004524T2 (de) 2004-04-08

Similar Documents

Publication Publication Date Title
EP1185466B1 (fr) Materiau d'enveloppage flexible, particulierement pour l'emballage, et procede d'elaboration
US6213167B1 (en) Inflatable package cushioning and method of using same
US10858620B2 (en) Multi-chambered fluid-fillable apparatus
US6149002A (en) Container and foldable panel employing a plurality of gas pockets
US20040005100A1 (en) Flexible pouch with expandable polymer skeleton
US20060070909A1 (en) Heat resistant foam-in-bag packaging
AU6780996A (en) Layered structural articles
WO2003078155A1 (fr) Emballage ondule et materiau d'isolation
CN116635311A (zh) 具有纤维素基可膨胀复合材料的保护性物品
CN115956020A (zh) 具有膨胀材料组分的原位组合的可膨胀幅材
US20100126119A1 (en) Heat activated support system
KR920000002B1 (ko) 열수축성 발포폴리스티렌계 복합시이트
US11801981B2 (en) Packaging with sealing materials having different sealing conditions
CN116685462A (zh) 具有可膨胀聚烯烃复合材料的保护性物品
KR940006653B1 (ko) 열추축성시이트
JPS61178865A (ja) 緩衝用シ−ト
JPH0333464Y2 (fr)
JPWO2022094333A5 (fr)
NZ236024A (en) Moisture-absorbent laminate having a perforated thermoplastic film laminated to a thermoformable plastics film having bubbles containing a moisture-absorbent material
JP2002178430A (ja) 複合資材
JPS61178820A (ja) 発泡性熱収縮シ−トを用いる包装方法

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

17P Request for examination filed

Effective date: 20011212

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030813

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60004524

Country of ref document: DE

Date of ref document: 20030918

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ABREMA AGENCE BREVETS ET MARQUES GANGUILLET & HUMP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031113

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040113

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20030813

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2204608

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040514

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080602

Year of fee payment: 9

Ref country code: DE

Payment date: 20080606

Year of fee payment: 9

Ref country code: DK

Payment date: 20080515

Year of fee payment: 9

Ref country code: ES

Payment date: 20080410

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20080521

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20080428

Year of fee payment: 9

Ref country code: IT

Payment date: 20080409

Year of fee payment: 9

Ref country code: FI

Payment date: 20080416

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20080415

Year of fee payment: 9

Ref country code: NL

Payment date: 20080531

Year of fee payment: 9

Ref country code: SE

Payment date: 20080509

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080421

Year of fee payment: 9

BERE Be: lapsed

Owner name: *TRANI GIORGIO

Effective date: 20090531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090518

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090518

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20091201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100129

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090518

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090602

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080430

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091201

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090519