EP0495230B1 - Recyclebarer schalenförmiger Verpackungsbehälter mit Flüssigkeit-Absorbersystem - Google Patents

Recyclebarer schalenförmiger Verpackungsbehälter mit Flüssigkeit-Absorbersystem Download PDF

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Publication number
EP0495230B1
EP0495230B1 EP91121941A EP91121941A EP0495230B1 EP 0495230 B1 EP0495230 B1 EP 0495230B1 EP 91121941 A EP91121941 A EP 91121941A EP 91121941 A EP91121941 A EP 91121941A EP 0495230 B1 EP0495230 B1 EP 0495230B1
Authority
EP
European Patent Office
Prior art keywords
tray
packaging container
liquid
sheet
beads
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
EP91121941A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0495230A2 (de
EP0495230A3 (en
Inventor
Theodor W. M. Fransen
Rudolf E. Stadler
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.)
Depron BV
Original Assignee
Hoechst AG
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
Priority claimed from DE19904041461 external-priority patent/DE4041461A1/de
Priority claimed from DE19914120319 external-priority patent/DE4120319A1/de
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0495230A2 publication Critical patent/EP0495230A2/de
Publication of EP0495230A3 publication Critical patent/EP0495230A3/de
Application granted granted Critical
Publication of EP0495230B1 publication Critical patent/EP0495230B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • B65D81/265—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids the absorbent being placed beneath a false bottom
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/34—Trays or like shallow containers
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
    • B65D81/262—Rigid containers having false bottoms provided with passages for draining and receiving liquids

Definitions

  • the invention relates to a tray-shaped packaging container made of a plastic foam film for receiving liquid-secreting packaging material with a tray bottom and upwardly directed side walls, which merge into a circumferential, closed edge bead, and with an insert plate arranged at a distance from the tray bottom in the interior of the packaging container Perforations is equipped, and forms a cavity between the inside of the shell bottom and the insert plate, in which liquid-absorbent material is arranged and a tool for its production.
  • Packaging containers of this type are used to hold food that emits liquid, especially larger pieces of meat, the liquid being absorbed by an absorber system.
  • a packaging container or a packaging tray according to the preamble of claim 1 is known, in which capsules, granules, cellulose fibers, cellulose layers, liquid-absorbing polymers or in the cavity between the tray bottom and a perforated insert plate other hydrophilic material is arranged.
  • DE-A-34 23 518 discloses a liquid absorbent pad for use in individual meat packs, in which numerous solid bodies or pellets are distributed to accommodate the weight of the packaged meat.
  • the bodies or pellets are distributed in a liquid-absorbing material which is easily compressible and therefore normally presses the liquid absorbed back into the packaging tray under the pressure of the meat above.
  • the bodies or pellets consist of liquid, non-absorbent plastic.
  • a three-layer packaging tray which has a perforated bottom film. Through the openings, the liquid collecting in the bowl can flow into an underlying, moisture-absorbing intermediate layer.
  • the outer film surrounds the intermediate layer on the underside of the packaging tray and is connected to the bottom film on the edge of the tray.
  • this shell has the disadvantage that it is not recyclable, since the moisture-absorbing intermediate layer cannot be separated from the shell, or only with considerable effort.
  • the packaging tray of AT-PS 327 783 is also constructed in three layers, namely from an inner and an outer film and an intermediate layer of liquid-absorbent material. It is produced by thermoforming the layers on top of each other.
  • the absorbent layer is also located in the area of the shell walls, but is there due to the strong expansion in the area of the walls during thermoforming torn. It is obvious that this method can only be carried out if the absorbent layer has a relatively small thickness, but this has the disadvantage that its ability to absorb moisture is very poor.
  • This bowl is also not recyclable.
  • the packaging container described in EP-A-0 090 507 is constructed in two layers. Its inner surface has an open-cell, foamed polymer structure that is only suitable for holding condensed liquid droplets. This container is not suitable for absorbing large amounts of moisture.
  • DE-A-34 06 399 describes a packaging container which is constructed from two superimposed thermoformed plastic foam foils which are welded to one another in the region of the side walls and which extend at a distance from one another in the region of the base part, the inner film in the region of the base part is provided with holes for draining liquid.
  • the two foils form a free cavity in the area of the base part and lie directly against one another in the area of the side walls.
  • a major disadvantage of all of these known packaging containers is the absorption capacity of the absorption material, which is far too low.
  • a usually six-layer layer of cellulose wadding with a size of 7x10 cm can absorb a maximum of only about 8 to 10 g of liquid. If a piece of frozen meat is now packaged in such a packaging tray and then kept ready for sale in a refrigerated display case, up to 10% of the filling weight, or up to 50 g for a piece of meat of 500 g, can be released into meat juice. Such an amount exceeds the absorption capacity the absorption layer by far.
  • Another disadvantage of the packaging containers with the absorption system according to the prior art is that these containers cannot be recycled or can only be recycled with considerable effort.
  • the entire system, consisting of the absorber system and packaging container, should be recyclable.
  • a packaging container in such a way that there are balls in the cavity which are coated with a liquid superabsorbent polymer or that the liquid absorbent material is formed from a flexible, liquid-permeable plastic bag in which liquid superabsorbent polymer is enclosed, or consists of a liquid superabsorbent polymer coating on the inside of the insert facing the cavity.
  • the one-layer, dimensionally accurate packaging container with a beaded edge is made of a single plastic foam film, preferably by deep drawing using male / female tools manufacture containers. All post-expandable plastic foam films can be used as plastic foam films. These plastic foam films are produced by foaming plastic films, the foaming (pre-foaming) being able to be brought about both chemically, ie for example by releasing CO 2 during a chemical reaction of two compounds, and physically, ie for example by thermal expansion of an added propellant gas such as butane . These pre-expanded foils can be expanded later by re-heating them (post-expansion).
  • pre-expanded plastic films made of polypropylene (PP), in particular polyvinylidene oxide (PPO), polyethylene terephthalate (PET), but preferably physically pre-expanded polystyrene films (PS) can be used.
  • the bowl-shaped packaging container shows the typical basic shape, which comprises a container bottom with a usually flat outer surface and a flat inner bottom surface as well as upwardly directed side walls which are usually slightly inclined away from the bottom surface.
  • the trays according to the invention In contrast to trays of this type based on film according to the prior art, which have side walls which end in an outward-facing flange edge, the trays according to the invention have a widened, beaded edge, preferably with a straight edge directed from the side surfaces to the bottom extends parallel to the side surfaces and the bottom surface.
  • the bead improves the mechanical stability of the shells. This increases the stiffness of the trays, so that, for example, crushing of the trays when packaged with food is reduced and even largely prevented. Because of this bead, the packaging containers according to the invention can be stacked very well and, above all, unstacked.
  • the shells according to the invention this is firstly due to an extremely high dimensional accuracy, i.e. Reproducibility of the outer dimensions of the shells, in conjunction with the bead edge, which is extremely advantageous in this regard, is achieved, and secondly, the single-layer film structure of the shell has a positive effect.
  • the stackability or unstackability can be further improved if the packaging container according to the invention is provided with at least one recessed grip in the bead area. Two recessed grips are preferably attached on two opposite sides.
  • the cut profile of the bead can be designed in different geometrical ways. Elliptical, in particular circular, rectangular, square or triangular sectional profiles have proven to be expedient.
  • the bead is massive, i.e. all over, filled with foil material.
  • the inner surfaces of the side walls have a circumferential, step-shaped shoulder at a distance from the tray bottom, on which the insert plate is removably supported.
  • a cavity is created between this perforated insert plate and the shell bottom, into which, for example, a moisture-absorbing agent made of a superabsorbent polymer can be added.
  • the separately produced insert plate can be dimensioned so that it is loosely inserted, clamped or, if desired, glued into the shell.
  • the insert plate is preferably made of the same material as the packaging container.
  • the packaging containers according to the invention are produced on the basis of the known thermoforming production method for single-layer or multi-layer plastic trays with a flange edge.
  • a 1 to 5 mm thick heated film made of pre-expanded, extruded, rigid plastic, preferably an extruded polystyrene foam film, is pressed from a male mold into a female mold. This process is supported by applying a double-sided vacuum. The heating leads to a further foaming of the already pre-expanded film material and thus to an increase in volume.
  • the fitting is made by means of the in the male tool Integrated cut plate cut out of the protruding film (waste) and the trays finally separated.
  • the optionally perforated insert plates are produced by customary methods, for example by punching them out of appropriate foils.
  • the single-layer packaging containers according to the invention described above are easy to recycle.
  • the containers In order to use them as packaging containers for foods containing liquids, the containers contain a liquid absorbent. Accordingly, the bowl-shaped packaging containers are equipped with liquid superabsorbent materials, but can also be equipped with the usual suction filters, such as paper layers or cellulose layers.
  • suction filters such as paper layers or cellulose layers.
  • a moisture superabsorbent polymer which is not harmful to food law is used as the suction filter in the containers.
  • these special polymers is not limited solely to the packaging containers according to the invention, but also extends to those packaging containers according to the prior art in which, for example, cellulose layers have been used for this purpose.
  • all natural or synthetic polymers can be used as moisture superabsorbent polymers which have a multiple of their (dry) own weight of moisture - preferably water - can take up and preferably do not give up even under increased pressure or only release it to a small extent.
  • Gum arabic, gelatin or alkali alginates may be mentioned as examples of polymers which are suitable in principle but are not preferred.
  • Preferred are polymers which absorb 10 to 2000 times, in particular 100 to 1200 times, very particularly preferably 300 to 700 times their own mass of moisture.
  • Their moisture absorption capacity should be in the range from 1 to 100 ml / g, preferably 10 to 90 ml / g, particularly preferably 30 to 70 ml / g.
  • Polyacrylates which are modified, for example with starch, are preferably used.
  • the alkali metal salts, preferably the sodium salts, of these compounds are used, which are commercially available, for example, under the name (R) SANWET (Hoechst AG, Frankfurt, SANYO Chemical Industries, Ltd., Tokyo).
  • These superabsorbent polymers effectively prevent the leakage of liquid that has accumulated in the packaging containers.
  • the direct contact of the superabsorbent polymers with the filling material can be avoided. This is done, for example, by introducing the polymer into the cavity of packaging trays with a double bottom.
  • the double floor can be supported with spacers. These spacers can be incorporated, for example, in the insert plate or in the tray base. Cylindrical stamps which protrude as elevations above the shell bottom have proven to be expedient, the height of the stamp corresponding to the distance between the shell bottom and the insert plate.
  • the polymer can be attached to the back of the insert - on the side facing the cavity - or on the bottom of the bowl itself, or small balls, such as polystyrene foam balls, are coated with the polymer and then filled into the cavity or on the floor attached to the shell or on the side of the insert facing the cavity of the shell.
  • the insert plate can also be inserted loosely into the shell and does not need to be additionally supported by a circumferential, step-shaped heel. The balls also directly bring about the desired pressure relief.
  • the moisture superabsorbent polymer is accommodated in a flexible, moisture-permeable container, for example in a plastic bag.
  • the bag can be made from conventional plastic films, for example from PVC or polyolefins, such as polypropylene or polyethylene, or from polystyrene films. It has proven to be extremely advantageous to manufacture the flexible container from a plastic which - depending on the temperature - is water-soluble, that is to say, for example, dissolves in warm water. This behavior can be advantageous both when manufacturing the bags (eg welding with steam), attaching the bags to the bottom of the shell (gluing by "dissolving" with warm water) and recycling (“washing out” the prey).
  • Washing out proves to be an advantage in that the used trays taken back, including the plastic bag, can first be shredded and then the bag material can be dissolved in a water bath and separated from the tray material, which is not possible with conventional trays with, for example, cellulose suction filters.
  • a preferred film material for the bag in addition to polystyrene, is polyvinyl alcohol (PVAL film);
  • PVAL film polyvinyl alcohol
  • Mowiol (R) Mowiol
  • Hoechst AG, Frankfurt / Main The temperature range of the water solubility can be set by a suitable choice of the composition of the film material.
  • the film bag can, for example, be needled, that is to say provided with small holes.
  • the plastic bag is expediently filled with uncoated balls made of polystyrene foam or balls coated with liquid superabsorbent polymer, in order to relieve the pressure on the bottom of the shell.
  • Figures 1a and 1b show a bowl-shaped packaging container 1 with a bowl bottom 2 in section, without an internally circumferential stepped shoulder 5 and outside with an edge bead 3, which is interrupted to form two recessed grips 4 on the narrow sides, with Fig. 1a a cross section and Fig 1b represent a longitudinal section.
  • FIG. 2 shows a perspective view of a bottom view of the packaging container according to FIG. 1.
  • FIG. 3 shows a packaging container according to the invention in cross section with circumferential shoulder 5 in the bottom area for the distant fixing of an insert plate 6 provided with perforations.
  • Fig. 4 shows a perspective view, partially in section, of a packaging container 1 with a bead 3, recessed grip 4, paragraph 5, insert plate 6 with perforations and a cavity which is formed by the tray bottom 2 and the insert plate 6.
  • the male tool 9 contains ventilation channels 13 and an integrated cutting plate 10, which corresponds to the cutting edge 21 of the die 11.
  • the die tool 11 contains the groove 15 necessary for the formation of the edge bead 3 as well as lugs 14 projecting into this groove for the formation of the grip recesses 4.
  • FIG. 6 shows a combination of the male and female tool corresponding to FIG. 5 in the closed position.
  • the male tool additionally has a step plate 16, which is used to form the shoulder 5.
  • FIG. 7 shows a preferred embodiment of a packaging container 1 with a circumferential step-shaped shoulder 5, shelf 6 and a liquid absorber system 18 located in the cavity 8.
  • This liquid absorber system shown consists of a PVAL bag which contains a liquid, highly absorbent polymer and spacer balls 17.
  • FIG. 8 shows an embodiment of a packaging system in which the packaging container 1 does not contain a step 5, but the insert plate 6 is kept at a distance by pressure-relieving polystyrene foam balls 17.
  • the liquid-absorbing polymer is located either as a coating on the spacer balls 17 or on the side of the insert plate 6 pointing into the cavity 8.
  • FIG. 9 shows a longitudinal section through a finished product packaging with packaging container 1 according to FIG. 4, including filling with food 19 and packaging film 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • External Artificial Organs (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Refuse Receptacles (AREA)
  • Making Paper Articles (AREA)
  • Catching Or Destruction (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Laminated Bodies (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP91121941A 1990-12-27 1991-12-20 Recyclebarer schalenförmiger Verpackungsbehälter mit Flüssigkeit-Absorbersystem Expired - Lifetime EP0495230B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4041461 1990-12-27
DE19904041461 DE4041461A1 (de) 1990-12-27 1990-12-27 Recyclebarer schalenfoermiger verpackungsbehaelter mit fluessigkeit-absorbersystem
DE19914120319 DE4120319A1 (de) 1991-06-20 1991-06-20 Recyclebarer schalenfoermiger verpackungsbehaelter mit fluessigkeit-absorbersystem
DE4120319 1991-06-20

Publications (3)

Publication Number Publication Date
EP0495230A2 EP0495230A2 (de) 1992-07-22
EP0495230A3 EP0495230A3 (en) 1992-09-30
EP0495230B1 true EP0495230B1 (de) 1997-03-12

Family

ID=25899713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91121941A Expired - Lifetime EP0495230B1 (de) 1990-12-27 1991-12-20 Recyclebarer schalenförmiger Verpackungsbehälter mit Flüssigkeit-Absorbersystem

Country Status (8)

Country Link
EP (1) EP0495230B1 (fi)
AT (1) ATE149950T1 (fi)
DE (1) DE59108616D1 (fi)
DK (1) DK0495230T3 (fi)
ES (1) ES2099124T3 (fi)
FI (1) FI108426B (fi)
NO (1) NO304147B1 (fi)
PT (1) PT99942B (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2684330B1 (fr) * 1991-11-28 1994-12-30 Vitembal Procede et installation de fabrication de barquettes pour le conditionnement de produits alimentaires et barquettes obtenues par ce procede.
DE4234632B4 (de) * 1992-10-14 2004-09-30 Depron B.V. Schalenförmiger Verpackungsbehälter, Verfahren zu seiner Herstellung sowie Verwendung desselben
DE4313146C2 (de) * 1993-04-23 1996-10-31 Silver Plastics Gmbh & Co Kg Mehrschichtige Verpackungsschale zur Aufnahme von flüssigkeitsabsondernden Lebensmitteln und Verfahren zu ihrer Herstellung
DE4418319C3 (de) * 1994-05-26 2001-08-09 Stockhausen Chem Fab Gmbh Schichtförmig aufgebauter Körper zur Absorption von Flüssigkeiten sowie seine Herstellung und seine Verwendung
GB9413645D0 (en) * 1994-07-06 1994-08-24 Fra Mo Snc Food packaging tray
DE19711980C2 (de) * 1997-03-12 2001-11-08 Krone Gmbh Stationäres Gehäuse mit Wandelementen aus Kunststoff
DE19725949C2 (de) * 1997-06-19 1999-09-02 Silver Plastics Gmbh & Co Kg Verpackungsschale für Lebensmittel und ein Verfahren zum Herstellen dieser Verpackungsschalen
US6386439B2 (en) 1998-10-14 2002-05-14 The Mead Corporation Tray container and blank
GB9822461D0 (en) * 1998-10-15 1998-12-09 Mead Corp A tray container and blank
WO2005066039A1 (en) * 2004-01-05 2005-07-21 Joon-Young Ahn Container for vacuum packing
WO2009020805A1 (en) * 2007-08-08 2009-02-12 Meadwestvaco Corporation Packaging tray with compartment
US10517415B2 (en) 2017-01-18 2019-12-31 The Boeing Company Tray table trays
IT201700021404A1 (it) * 2017-02-24 2018-08-24 Bianucci Di Bianucci S & C Snc Vaschetta drenante perfezionata per il contenimento di alimenti freschi

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208941A1 (fi) * 1972-12-04 1974-06-28 Tee Pak Inc
DE3423518A1 (de) * 1984-01-09 1985-07-18 Curt G. Joa, Inc., Sheboygan Falls, Wis. Fluidabsorbierende unterlage fuer lebensmittel
US4576278A (en) * 1982-11-23 1986-03-18 W. R. Grace & Co., Cryovac Div. Purge trap tray
US4749600A (en) * 1986-05-16 1988-06-07 Multiform Desiccants, Inc. Liquid absorbing and immobilizing packet
FR2614877A1 (fr) * 1987-05-07 1988-11-10 Grouiller Herve Systeme de conditionnement et d'emballage d'aliments sujets a l'exsudation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450326A (en) * 1967-08-21 1969-06-17 Diamond Int Corp Food container
NL7304613A (fi) * 1972-04-25 1973-10-29
DE3406399A1 (de) * 1984-02-22 1985-08-22 Hoechst Ag, 6230 Frankfurt Schalenfoermiger verpackungsbehaelter mit fluessigkeit aufnehmendem boden

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208941A1 (fi) * 1972-12-04 1974-06-28 Tee Pak Inc
US4576278A (en) * 1982-11-23 1986-03-18 W. R. Grace & Co., Cryovac Div. Purge trap tray
DE3423518A1 (de) * 1984-01-09 1985-07-18 Curt G. Joa, Inc., Sheboygan Falls, Wis. Fluidabsorbierende unterlage fuer lebensmittel
US4749600A (en) * 1986-05-16 1988-06-07 Multiform Desiccants, Inc. Liquid absorbing and immobilizing packet
FR2614877A1 (fr) * 1987-05-07 1988-11-10 Grouiller Herve Systeme de conditionnement et d'emballage d'aliments sujets a l'exsudation

Also Published As

Publication number Publication date
ES2099124T3 (es) 1997-05-16
DK0495230T3 (da) 1997-04-21
DE59108616D1 (de) 1997-04-17
NO915088L (no) 1992-06-29
PT99942A (pt) 1993-11-30
ATE149950T1 (de) 1997-03-15
NO915088D0 (no) 1991-12-23
EP0495230A2 (de) 1992-07-22
FI916122A (fi) 1992-06-28
EP0495230A3 (en) 1992-09-30
PT99942B (pt) 1999-05-31
FI108426B (fi) 2002-01-31
FI916122A0 (fi) 1991-12-23
NO304147B1 (no) 1998-11-02

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