DE4411051A1 - Throw-away container for food, esp. drinking water - Google Patents

Throw-away container for food, esp. drinking water

Info

Publication number
DE4411051A1
DE4411051A1 DE4411051A DE4411051A DE4411051A1 DE 4411051 A1 DE4411051 A1 DE 4411051A1 DE 4411051 A DE4411051 A DE 4411051A DE 4411051 A DE4411051 A DE 4411051A DE 4411051 A1 DE4411051 A1 DE 4411051A1
Authority
DE
Germany
Prior art keywords
drinking water
food
container
acid
cellulose
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.)
Granted
Application number
DE4411051A
Other languages
German (de)
Other versions
DE4411051C2 (en
Inventor
Klaus Dr Metzner
Hans-Dieter Dr Voigt
Klaus-Dieter Dr Rauchstein
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.)
Dow Olefinverbund GmbH
Original Assignee
Buna 06258 Schkopau De GmbH
BUNA GmbH
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 Buna 06258 Schkopau De GmbH, BUNA GmbH filed Critical Buna 06258 Schkopau De GmbH
Priority to DE4411051A priority Critical patent/DE4411051C2/en
Publication of DE4411051A1 publication Critical patent/DE4411051A1/en
Application granted granted Critical
Publication of DE4411051C2 publication Critical patent/DE4411051C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/048—Forming gas barrier coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/052—Forming heat-sealable coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Abstract

In a self-stabilising, throw-away container for foods, esp. for drinking water, with walls from a low-value plant prod. yielding starch or cellulose, and, on the inside and or outside of the walls, a barrier layer of low permeability to water vapour, where the container is tightly closed and sealed after filling, the barrier layer is a polyhydroxyalkane acid and/or up to 40 wt.% of polyhydroxy-alkane acid, w.r.t. the wt. of the container, is mixed with the starch- or cellulose-yielding prod..

Description

Der Einwegbehälter findet Verwendung zum längerfristigen Aufbewahren von Nahrungsmitteln in fester, flüssiger oder pastöser Form. Besonders eignet sich der Einwegbehälter zur Aufbewahrung von Trinkwasser für eine Versorgung in Krisen- und Notstandsgebieten oder zur Versorgung in Havariesitu­ ationen.The disposable container is used for long-term use Storage of food in solid, liquid or pasty shape. The disposable container is particularly suitable for Storage of drinking water for a supply in crisis and emergency areas or for emergency care ations.

Es sind unterschiedliche Einwegbehälter zur Aufbewahrung von Nahrungsmitteln bekannt, welche jedoch in den meisten Fällen den Nachteil einer nicht problemlosen Entsorgung nach der Entnahme des Inhaltes haben.There are different disposable containers for storing Food known, but in most cases the disadvantage of not a problem-free disposal after Have the contents removed.

So weisen Einwegverpackungen für flüssige Nahrungsmittel, wie z. B. Milch, Fruchtsäfte oder Mineralwasser einen Schichtstoffkörper aus Pappe und einer oder mehrerer Sperrschichten aus einer Metallfolie und Kunststoffolie auf, wobei die Kunststoffolie aus Polyolefin (Polyäthylen oder Polypropylen), Polyethylenglykoltherephtalat oder einem Verbund aus diesen (Mehrschichtfolie) besteht. Verpackungen mit einem solchen Schichtkörperaufbau sind zwar in unter­ schiedlichsten Größen und Formen mit den mannigfaltig­ sten Techniken zu deren Entleerung herstellbar, jedoch ist eine anschließende Entsorgung der entleerten Behältnisse nur mit hohem Aufwand möglich. Eine Verbrennung scheidet dann aus, wenn die verwendeten Kunststoffolien dadurch nicht umweltverträglich entsorgt werden können. Bei einem Rotteprozeß werden weitgehend nur die Zellulosebe­ standteile abgebaut. Eine Trennung des Schichtkörpers ist in den meisten Fällen zu kostenaufwendig und in Krisen- und Notstandsgebieten nicht zu gewährleisten.So disposable packaging for liquid food, such as B. milk, fruit juices or mineral water Laminated body made of cardboard and one or more Barrier layers made of a metal foil and plastic foil, the plastic film made of polyolefin (polyethylene or Polypropylene), polyethylene glycol terephthalate or one Composite consists of these (multilayer film). packagings with such a laminate structure are in under various sizes and shapes with the most varied best techniques for emptying them, however, a subsequent disposal of the emptied Containers only possible with great effort. Combustion is then ruled out if the plastic films used cannot be disposed of in an environmentally friendly way. At Only the cellulose is largely a rotting process parts dismantled. There is a separation of the laminate in most cases too expensive and in crisis and emergency areas cannot be guaranteed.

In der DE 39 37 168 A1 wird eine Verpackung aus einem organischen Material durch Verpressen von zellulose- und stärkeliefernden, minderwertigen pflanzlichen Erzeugnissen unter Zusatz von Wasser vorgeschlagen. Diese können zwar weitgehend problemlos durch Kompostierung oder Verbrennung entsorgt werden, jedoch sind diese Behältnisse nicht zur Aufbewahrung von wäßrigen Nahrungsmitteln geeignet. In DE 39 37 168 A1, packaging is made from a organic material by pressing cellulose and starch-producing, inferior plant products proposed with the addition of water. These can largely without problems through composting or incineration are disposed of, however, these containers are not for Storage of aqueous food is suitable.  

Es werden aber auch Behälter vorgeschlagen, welche durch Pressen von Stroh mit einer Länge zwischen 0,5 und 5 cm unter Zugabe eines in Wasser gelösten Klebers und anschlie­ ßender Trocknung hergestellt werden (DE 38 13 984 A1). Soweit der verwendete Kleber natürlich abbaubar ist, kann ein solcher Behälter durch Kompostierung oder Verbrennung entsorgt werden. Eine Verwendung als Behälter für wäßrige Nahrungsmittel scheidet jedoch aus.However, containers are also proposed which pass through Pressing straw with a length between 0.5 and 5 cm with the addition of an adhesive dissolved in water and then Drying be produced (DE 38 13 984 A1). As far as the adhesive used is naturally degradable, can such a container through composting or incineration to be disposed of. Use as a container for aqueous However, food is excluded.

Es besteht die Aufgabe, einen Einwegbehälter für Nahrungs­ mittel, insbesondere für Trinkwasser herzustellen, welcher nach Entleerung sowohl durch Kompostierung in einem kurzen Zeitraum umweltverträglich entsorgt werden kann, als auch durch dessen problemlose Verbrennung als Energiespender Verwendung findet.The task is to create a disposable container for food medium, especially for drinking water, which after emptying both by composting in one can be disposed of in an environmentally friendly manner for a short period of time also by its problem-free combustion as an energy donor Is used.

Die Aufgabe wird durch den im Patentanspruch dargestellten Einwegbehälter gelöst. Die Hülle des Einwegbehälters besteht in bekannter Weise aus einem stabilen Material, wie Pappe, Karton oder einem verpreßten zelluloseliefernden Erzeugnis, wie z. B. Stroh oder Schilf. Zur weiteren Erhöhung der Festigkeit der Hülle sind diesem Material bis zu 40% einer Polyhydroxyalkansäure vor dem Verpressen zugesetzt und unter Temperatureinwirkung wird dem Material verfestigt.The object is represented by the claim Disposable container released. The cover of the disposable container is there in a known manner from a stable material, such as cardboard, Cardboard or a compressed cellulose-producing product, such as B. straw or reeds. To further increase the This material is up to 40% strong Polyhydroxyalkanoic acid added before pressing and under The material is hardened by the effect of temperature.

Es ist auch möglich, auf die aus Zellulosefasern oder ähnlich verpreßten zelluloseliefernden oder stärkelie­ fernden Erzeugnissen hergestellten Hüllen eine Folie aus aus Polyhydroxyalkansäure aufzubringen. Dies erfolgt insbesondere auf der Oberfläche, welche mit dem Nahrungs­ mittel in Berührung steht. Das Aufbringen der Folie kann durch Heißsiegeln oder durch Aufkleben mit einem bioabbau­ baren Kleber erfolgen.It is also possible to use cellulose fibers or similarly pressed cellulosic or starch made from a film to apply from polyhydroxyalkanoic acid. this happens especially on the surface associated with food medium is in contact. The film can be applied by heat sealing or by sticking with a biodegradation removable adhesive.

Die als Folie eingesetzte Polyhydroxyalkansäure kann eine Polyhydroxybuttersäure oder ein Copolymer darstellen, insbesondere ein Copolymer aus Polyhydroxybuttersäure und Polyhydroxyvaleriansäure. Gleichfalls ist es möglich und besonders vorteilhaft, dem zellulose- oder stärkelieferndem Erzeugnis für die Hülle des Einwegbehälters reine Polyhy­ droxybuttersäure oder ein Copolymeres aus Polyhydroxybutter­ säure und Polyhydroxyvaleriansäure in dem genannten Mengen- Verhälntis zuzusetzen. Die für die Hülle außer Kartonage verwendbaren Materialien sind insbesondere solche aus kurz­ geschnittenen Fasern von Stroh, Schilf oder Gras. Solche nicht weiter stofflich verwertbaren pflanzlichen Er­ zeugnisse ergeben nach den bekannten Verarbeitungsverfahren ein Stützgewebe, welches unter Einlagerung von Polyhydroxy­ alkansäuren eine ausreichende Festigkeit gewährleistet. Solche Einwegbehälter, insbesondere zur Verwendung für Trinkwasser, sind geeignet zur Versorgung in ökologischen Krisengebieten oder in Dürregebieten, in derem ariden Klima keine Verrottung in sinnvollen Zeitabständen stattfindet. Die entleerten Einwegbehälter können zur Entsorgung öko­ logisch völlig unbedenklich allein oder gemeinsam mit ortsüblichem Heizmaterial unter Energiegewinnung (z. B. zur Speisenbereitung) rückstandsfrei verbrannt werden. Bei einer Verwendung des erfindungsgemäßen Einwegbehälters in Seenot­ rettungseinrichtungen besteht der Vorteil einer vollständi­ gen Verrottung unter Einwirkung von Seewasser nach dem Ent­ leeren der Behälter.The polyhydroxyalkanoic acid used as a film can be a Represent polyhydroxybutyric acid or a copolymer, in particular a copolymer of polyhydroxybutyric acid and Polyhydroxyvaleric acid. It is also possible and  particularly advantageous, the cellulose or starch supplier Product for the cover of the disposable container pure polyhy droxybutyric acid or a copolymer of polyhydroxy butter acid and polyhydroxyvaleric acid in the amounts mentioned To add half. The one for the cover except cardboard usable materials are especially those made of short cut fibers of straw, reeds or grass. Such vegetable Er no longer usable in terms of material Certificates result from the known processing methods a support fabric, which incorporates polyhydroxy alkanoic acids ensure sufficient strength. Such disposable containers, especially for use with Drinking water, are suitable for supply in ecological Crisis areas or in drought areas, in their arid climate there is no rotting at reasonable intervals. The emptied disposable containers can be eco-friendly for disposal logically completely harmless alone or together with Local heating material with energy generation (e.g. for Food preparation) are burned without residue. At a Use of the disposable container according to the invention in distress rescue facilities have the advantage of a complete against rotting under the influence of sea water after ent empty the container.

Auch bei einer Verwendung in Havariegebieten bei Ausfall einer ortsüblichen Trinkwasserbereitstellung, z. B. in Überschwemmungsgebieten durch Einbruch von Oberflächenwasser in die Trinkwasseranlagen, können solche Einwegbehälter mit dem Vorteil eingesetzt werden, daß diese nach dem Entleeren vollständig kompostierbar sind.Even when used in emergency areas in the event of failure a local drinking water supply, e.g. B. in Flood areas due to surface water ingress in the drinking water system, such disposable containers can be used the advantage that these are used after emptying are fully compostable.

Die Erfindung wird nachfolgend an Beispielen näher erläu­ tert. Für die Portionierung von Trinkwasser wird ein erfin­ dungsgemäßer Einwegbehälter mit 1 Liter Fassungsvermögen als Quader hergestellt, dessen Kantenlängen 17 × 11 × 6 cm messen. Die innere Oberfläche der Verpackung ist mit einer Folie aus Polyhydroxybuttersäure von durchschnittlich 75 um Stärke belegt, die Wandungen aus Pappe enthalten 30% Poly­ hydroxybuttersäure in homogen verteilter Form. The invention is explained in more detail below using examples tert. An invention is invented for portioning drinking water disposable container according to the invention with 1 liter capacity produced as a cuboid, the edge lengths of 17 × 11 × 6 cm measure up. The inside surface of the packaging is one Polyhydroxybutyric acid film averaging 75 µm Thickness occupied, the cardboard walls contain 30% poly hydroxybutyric acid in a homogeneously distributed form.  

Es ergibt sich danach ein Flächengewicht von 325 g/m² für die Verpackung. Eine gleichgroße Verpackung aus einem Schichtstoffkörper vergleichbarer Festigkeit würde ein Flächengewicht von 400 g/m² aufweisen.This gives a basis weight of 325 g / m² for the packaging. An equally large packaging from one Laminate body of comparable strength would Have a basis weight of 400 g / m².

Der Einwegbehälter weist keine zusätzliche Einfüll- oder Ausgußöffnung auf und wird nach dem Befüllen mit keimfreien Trinkwasser in bekannter Weise sterilisiert und dichtend verschlossen.The disposable container has no additional filling or Spout on and is filled with aseptic after filling Drinking water is sterilized and sealed in a known manner locked.

Zur Bevorratung von Trinkwasser für eine Seenot-Rettungs­ insel wird ein 5-Liter-Einwegbehälter als Quader mit Kanten­ längen von 29 × 18 × 10 cm hergestellt, deren Wandungen aus einer Pappe mit einem Zusatz von 40% Polyhydroxybutter­ säure bestehen. Die innere Fläche der Verpackung ist gleich­ falls mit einer Folie aus Polyhydroxybuttersäure überzogen. Für einen solchen Einwegbehälter reicht bei gleicher Festig­ keit ein um 20% niedrigeres Flächengewicht der Umhüllung aus, als bei einer Verpackung aus Pappe in bekanntem Mehr­ schichtaufbau. Nach der Entleerung kann dieses Einwegbehält­ behältnis dem Seewasser übergeben werden, da hier in einer vertretbaren Zeit eine vollständige Auflösung erfolgt.For storing drinking water for a rescue at sea The island becomes a 5 liter disposable container as a cuboid with edges lengths of 29 × 18 × 10 cm, the walls of which are made  a cardboard with an addition of 40% polyhydroxy butter acidity exist. The inner surface of the packaging is the same if covered with a film of polyhydroxybutyric acid. For such a disposable container, the same strength is sufficient a 20% lower basis weight of the casing than in the case of cardboard packaging in the familiar more layer structure. After emptying, this can be disposable be handed over to the lake water, as here in one reasonable time a complete resolution takes place.

Claims (2)

1. Einwegbehälter für Nahrungsmittel, insbesondere für Trink­ wasser, in einer selbststabilisierenden Form mit Wandungen aus einem zellulose- oder stärkeliefernden, minderwerti­ gen pflanzlichen Erzeugnis und einer auf der Innenseite und/oder der Außenseite der Wandungen aufgebrachten Sperrschicht geringer Wasserdampfdurchlässigkeit, wobei der Einwegbehälter nach dem Befüllen dichtend verschlossen und versiegelt wird, dadurch gekennzeichnet, daß die Sperrschicht eine Folie aus Polyhydroxyalkansäure darstellt und/oder dem zellulose- oder stärkelieferndem Erzeugnis bis zu 40 Ge­ wichtsanteile in % Polyhydroxyalkansäure, bezogen auf das Gewicht des Einwegbehälters, zugemischt sind.1. Disposable containers for food, in particular for drinking water, in a self-stabilizing form with walls made of a cellulose or starch-supplying, inferior plant product and a barrier layer applied on the inside and / or outside of the walls with low water vapor permeability, the disposable container after the Filling is sealed and sealed, characterized in that the barrier layer is a film made of polyhydroxyalkanoic acid and / or up to 40 parts by weight in% polyhydroxyalkanoic acid, based on the weight of the disposable container, are added to the cellulose or starch supplying product. 2. Einwegbehälter nach Anspruch 1, dadurch gekennzeichnet, daß die Polyhydroxyalkansäure eine Polyhydroxybuttersäure darstellt.2. Disposable container according to claim 1, characterized in that the polyhydroxyalkanoic acid is a polyhydroxybutyric acid represents.
DE4411051A 1994-03-30 1994-03-30 Disposable containers for food, especially for drinking water Expired - Fee Related DE4411051C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4411051A DE4411051C2 (en) 1994-03-30 1994-03-30 Disposable containers for food, especially for drinking water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4411051A DE4411051C2 (en) 1994-03-30 1994-03-30 Disposable containers for food, especially for drinking water

Publications (2)

Publication Number Publication Date
DE4411051A1 true DE4411051A1 (en) 1995-10-05
DE4411051C2 DE4411051C2 (en) 1998-04-09

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000459A1 (en) * 1996-06-28 1998-01-08 Biotechnology Research And Development Corporation Biodegradable polyester and natural polymer laminates
DE19633476A1 (en) * 1996-08-20 1998-02-26 Buna Sow Leuna Olefinverb Gmbh Biodegradable thermoplastically deformable materials for food packaging
US5821286A (en) * 1996-05-24 1998-10-13 The United States Of America As Represented By The Secretary Of The Agriculture Biodegradable polyester and natural polymer compositions and films therefrom
US5852078A (en) * 1996-02-28 1998-12-22 The United States Of America As Represented By The Secretary Of Agriculture Biodegradable polyester compositions with natural polymers and articles thereof
US5854345A (en) * 1996-05-24 1998-12-29 The United States Of America As Represented By The Secretary Of Agriculture Biodegradable polyester and natural polymer compositions and expanded articles therefrom
US6025417A (en) * 1996-02-28 2000-02-15 Biotechnology Research & Development Corp. Biodegradable polyester compositions with natural polymers and articles thereof
EP1063067A1 (en) * 1999-06-09 2000-12-27 Kouji Miyazaki Containers made from wood chips
US6893527B1 (en) 1996-06-28 2005-05-17 William M. Doane Biodegradable polyester and natural polymer laminates

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DE3141385A1 (en) * 1980-10-20 1982-12-02 Christian Barathe IMPACT-RESISTANT AND GAS-PROOF BAG FOR PACKING UNDER CONDITIONED VACUUM
DE7833038U1 (en) * 1977-11-07 1983-03-24 Ethyl Corp., 23219 Richmond, Va. Collapsible container
DE8607559U1 (en) * 1986-03-19 1986-07-24 Schroeder & Wagner, 3260 Rinteln Multi-layer packaging bag
DE3813984A1 (en) * 1988-04-26 1989-11-09 Degenhard Urbahn Process for producing compression-moulded, shock-absorbing parts
DE3937168A1 (en) * 1989-11-08 1991-05-16 Juchem Gmbh Prodn. of biodegradable food packaging material - from cellulosic and starchy vegetable prods. and proteinaceous animal prods.
EP0603876A1 (en) * 1992-12-23 1994-06-29 Buck Werke GmbH & Co Biodegradable packaging material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7833038U1 (en) * 1977-11-07 1983-03-24 Ethyl Corp., 23219 Richmond, Va. Collapsible container
DE3141385A1 (en) * 1980-10-20 1982-12-02 Christian Barathe IMPACT-RESISTANT AND GAS-PROOF BAG FOR PACKING UNDER CONDITIONED VACUUM
DE8607559U1 (en) * 1986-03-19 1986-07-24 Schroeder & Wagner, 3260 Rinteln Multi-layer packaging bag
DE3813984A1 (en) * 1988-04-26 1989-11-09 Degenhard Urbahn Process for producing compression-moulded, shock-absorbing parts
DE3937168A1 (en) * 1989-11-08 1991-05-16 Juchem Gmbh Prodn. of biodegradable food packaging material - from cellulosic and starchy vegetable prods. and proteinaceous animal prods.
EP0603876A1 (en) * 1992-12-23 1994-06-29 Buck Werke GmbH & Co Biodegradable packaging material

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5852078A (en) * 1996-02-28 1998-12-22 The United States Of America As Represented By The Secretary Of Agriculture Biodegradable polyester compositions with natural polymers and articles thereof
US6025417A (en) * 1996-02-28 2000-02-15 Biotechnology Research & Development Corp. Biodegradable polyester compositions with natural polymers and articles thereof
US6054510A (en) * 1996-02-28 2000-04-25 The United States Of America As Represented By The Secretary Of The Agriculture Biodegradable formed article
US5821286A (en) * 1996-05-24 1998-10-13 The United States Of America As Represented By The Secretary Of The Agriculture Biodegradable polyester and natural polymer compositions and films therefrom
US5854345A (en) * 1996-05-24 1998-12-29 The United States Of America As Represented By The Secretary Of Agriculture Biodegradable polyester and natural polymer compositions and expanded articles therefrom
WO1998000459A1 (en) * 1996-06-28 1998-01-08 Biotechnology Research And Development Corporation Biodegradable polyester and natural polymer laminates
US5861216A (en) * 1996-06-28 1999-01-19 The United States Of America As Represented By The Secretary Of Agriculture Biodegradable polyester and natural polymer laminates
US6040063A (en) * 1996-06-28 2000-03-21 The United States Of America As Represented By The Secretary Of Agriculture Biodegradable polyester and natural polymer laminates
US6893527B1 (en) 1996-06-28 2005-05-17 William M. Doane Biodegradable polyester and natural polymer laminates
DE19633476A1 (en) * 1996-08-20 1998-02-26 Buna Sow Leuna Olefinverb Gmbh Biodegradable thermoplastically deformable materials for food packaging
EP1063067A1 (en) * 1999-06-09 2000-12-27 Kouji Miyazaki Containers made from wood chips

Also Published As

Publication number Publication date
DE4411051C2 (en) 1998-04-09

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