SK146393A3 - Biological degradable covering material - Google Patents

Biological degradable covering material Download PDF

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Publication number
SK146393A3
SK146393A3 SK1463-93A SK146393A SK146393A3 SK 146393 A3 SK146393 A3 SK 146393A3 SK 146393 A SK146393 A SK 146393A SK 146393 A3 SK146393 A3 SK 146393A3
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SK
Slovakia
Prior art keywords
layer
water vapor
layers
oxygen
packaging
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SK1463-93A
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Slovak (sk)
Inventor
Johannes Schroeter
Heribert Kammerstetter
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Buck Chem Tech Werke
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Publication of SK146393A3 publication Critical patent/SK146393A3/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D65/466—Bio- or photodegradable packaging materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/716—Degradable
    • B32B2307/7163—Biodegradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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

The invention relates to a biodegradable packaging material comprising an oxygen-impermeable central layer of polyvinyl alcohol which is provided on both sides with a water vapour-impermeable layer of polyhydroxybutyrate and/or polyhydroxyvalerate or the copolymer thereof, where a layer of a cellulose derivative and/or of paper is arranged on each of these two water vapour-impermeable layers. This material is used, in particular, for packaging foodstuffs, in particular liquid and solid foodstuffs.

Description

Biologicky odbúrate ľný obalový materiál, spôsob jeho výroby a použitieBiodegradable packaging material, process for its production and use

Oblasť techn i kyTechnical field

Vynález sa týka biologicky odbúrate ľného obalového materiálu, spôsobu jeho výroby a použitia tohto materiálu najmä na balenie potravín.The invention relates to a biodegradable packaging material, to a process for its production and to the use of this material in particular for packaging foodstuffs.

Doterajší stav technikyBACKGROUND OF THE INVENTION

Obalové materiály sú určené na m i nima1 izáci u vzájomného pôsobenia medzi okolitým prostredím a náplňou uzavretou v obale. Pre tento účel sa najmä v oblasti fóliových obalov vyvinuli vhodné materiály, ktoré vykazujú veľmi dobrý ochranný účinok. Zabraňujú najmä prenikaniu vzdušného kyslíka, vodnej pary a aromatických látok cez obal. Doteraz známe, v tomto odbore používané materiály majú optimálne vlastnosti a je spravidla možné vyrábať ich s priaznivými nákladmi. Vzhľadom na to, že ale pozostávajú z plastických hmôt, ktoré nehnijú a preto sa tiež nedajú odstrániť, vznikajú problémy pri zneškodňovaní. Pre vyriešenie problémov so zneškodňovaním týchto obalov sa už viackrát navrhlo používanie biologicky odbúrateľných materiálov. Avšak nevýhodou väčšiny biologicky odbúrateľných mmateriálov je, že ich ochranný účinok v porovnaní s účinkom známych obalových materiálov je neuspokojivý až zlý. Väčšina týchto materiálov sa nevyznačuje ochranným účinkom voči plynom, aromatickým látkam a/alebo vodnej pare alebo v okolitom prostredí dochádza k ich tak rýchlemu odbúraniu, že neprichádza do úvahy ich použitie ako obalov.The packaging materials are designed to minimize interactions between the environment and the enclosure contained within the packaging. For this purpose, particularly in the field of foil packaging, suitable materials have been developed which have a very good protective effect. In particular, they prevent the ingress of air oxygen, water vapor and flavorings through the packaging. The prior art materials used in the art have optimum properties and can generally be manufactured at low cost. However, since they consist of plastics that do not rot and therefore cannot be removed, disposal problems arise. The use of biodegradable materials has been suggested several times to solve the problems of disposal of these packages. However, the disadvantage of most biodegradable materials is that their protective effect is unsatisfactory to poor compared to known packaging materials. Most of these materials do not exhibit protective effects against gases, flavorings and / or water vapor, or are degraded so rapidly in the environment that their use as packaging is not considered.

Podnetom vynálezu bola úloha poskytnúť obalový materiál, ktorý má vysoký ochranný účinok voči kyslíku, aromatickým látkam a vodnej pare, je znášanlivý voči potravinám a dokonale biologicky odbúrate ľný.The object of the invention was to provide a packaging material which has a high protective effect against oxygen, flavorings and water vapor, is food-tolerant and perfectly biodegradable.

Podstata vynálezuSUMMARY OF THE INVENTION

Vynález rieši túto úlohu biologicky odbúrateľným obalovým materiálom, pozostávajúcim z prostrednej vrstvy z. po 1 y v i ny 1 a 1 koholu, ktorá zabraňuje prestupu kyslíka. Táto prostredná vrstva je z oboch strán opatrená vrstvou z polyhydroxybutyrátu, po 1 yhydroxyva1erátu alebo niektorého kopolyméru týchto zlúčením, ktoré zabraňujú prestupu vodnej pary. Na každej z týchto vrstiev zabraňujúcich prestupu vodnej pary je ešte nanesená vrstva niektorého z derivátov celulózy a/alebo papiera.The invention solves this object by a biodegradable packaging material consisting of an intermediate layer of. 1 and 1 cock, which prevents oxygen transfer. This intermediate layer is provided on both sides with a layer of polyhydroxybutyrate, polyhydroxyvalerate or one of the copolymers of these compounds, which prevents the passage of water vapor. A layer of one of the cellulose and / or paper derivatives is still deposited on each of the water vapor barrier layers.

S prekvapením sa zistilo, že materiál, ktorý je vytvorený ako už bolo opísané vyššie, má vynikajúce vlastnosti. V podmienkach okolitého prostredia je nepriepustný pre aromatické látky, vodnú paru a kyslíka. Kvapalné, suché alebo vlhké potraviny uchovávané v tomto obalovom materiále ho nenapádajú, počas používania je stály a napriek tomu v rozumnom časovom intervale dochádza k jeho biologickému odbúraniu.Surprisingly, it has been found that a material which is formed as described above has excellent properties. It is impermeable to flavorings, water vapor and oxygen under ambient conditions. Liquid, dry or moist foods stored in this packaging material do not attack it, it is stable during use and yet biodegrades within a reasonable period of time.

Obalový materiál podľa vynálezu obsahuje ako prostrednú vnútornú vrstvu vrstvu polyvinylalkoholu. Po 1 y v iny1 a 1 koho 1 je plastická hmota, ktorá sa biologicky odbúrava a vo vysokej miere zabraňuje prestupu kyslíka. Tento účinok je možné vyjadriť napríklad pri fóliách s hrúbkou 15/um množstvom menším ako 1 cm 3.m-2.deň-1 . 1 bar-1. Ak je však táto po 1 yv iny1 a 1 koho 1ová fólia vystavená vlhkým podmienkam, zhoršuje sa jej priepustnosť pre kyslík a pri styku s vodou sa celkom stráca. Preto sa prostredná vnútorná vrstva z po 1 yv iny1 a 1 koho 1 u povlieka na oboch stranách vrstvou zabraňujúcou prestupu vodnej pary. Tato vrstva pozostáva z polyhydroxybutyrátu a/alebo po 1 yhydroxyvale r á t u alebo z niektorého kopolyméru polyhydroxybutyrátu s p o 1yhydroxyva1erátom. Po 1 yhydroxybutyrát a po 1yhydroxyva1erát, prípadne niektorý z nich vytvorený kopolymér sú tiež biologicky odbúrateľné plastické hmoty. Sú nepriepustné pre kvapaliny a vodnú paru a zabraňujú tým, aby vodná para prenikla až k prostrednejvnútornej vrstve, čím sa zachováva schopnosť vnútornej prostrednej vrstva zabraňovať prestupu kyslíka. Takýto sendvičový útvar by sa mohol použiť na balenie potravín, pretože po 1 yhydroxybutyrát a po 1 yhydr oxy va 1 er át sú plastické hmoty, ktoré nemajú škodlivé účinky na potraviny. Takýto sendvičový útvar je však vhodný iba na krátkodobé zabalenie suchých potravín, Po 1yhydroxybutyrát a/alebo polyhydroxyva1erát vykazujú totiž tak vysokú biologickú odbúrate Tnosť, že by pri styku s vlhkými alebo kvapalnými potravinami, prípadne s okolitými podmienkami došlo vpriebehu niekoľkých týždňov k ich odbúraniu a skladovanie potravín v takomto obale by nesplnilo účel. Na odstránenie týchto nedostatkov sa sendvičový útvar, tvorený prostrednou vrstvou zabraňujúcou prestupu kyslíka a z oboch strán nanesených vrstiev zabraňujúcich prestupu vodnej pary, opatrí na oboch stranách vždy jednou vrstvou niektorého derivátu celulózy alebo papiera. Povlak na oboch vonkajších povrchoch sa volí podľa toho, na aký účel sa má sendvičový útvar použiť. Tak napríklad sa môže, na stranu , ktorá má tvoriť vnútorný povrch obalu, naniesť derivát celulózy, ktorý je stály voči potravinám obsahujúcim vodu a na stranu, ktorá má tvoriť vonkajší povrch sa môže naniesť papier, ktorý sa prípadne môže potlačiť o sebe známym postupom.The packaging material according to the invention comprises a layer of polyvinyl alcohol as the intermediate inner layer. Polymers 1 and 1 are plastics that are biodegradable and highly prevent oxygen transfer. This effect may be expressed as in films having a thickness of 15 / um of less than 1 cm 3 .m -2 .day -1. 1 bar -1 . However, if this film and film is exposed to humid conditions, its permeability to oxygen is impaired and is totally lost upon contact with water. Therefore, the intermediate inner layer of polyvinyl 1 and 1 of which is coated on both sides with a water vapor barrier layer. This layer consists of polyhydroxybutyrate and / or polyhydroxy butyrate or a polyhydroxybutyrate copolymer with polyhydroxyvalerate. The polyhydroxybutyrate and polyhydroxyvalerate, or any of the copolymers formed therefrom, are also biodegradable plastics. They are impermeable to liquids and water vapor and prevent water vapor from penetrating to the inner inner layer, thereby maintaining the ability of the inner inner layer to prevent oxygen transmission. Such a sandwich formation could be used for food packaging because polyhydroxybutyrate and polyhydroxylate are plastics which have no harmful effects on foodstuffs. However, such a sandwich is only suitable for short-term packaging of dry foodstuffs, since the polyhydroxybutyrate and / or polyhydroxy valerate exhibit such a high biodegradability that it will be degraded and stored within a few weeks on contact with moist or liquid foodstuffs or ambient conditions. food in such packaging would not serve the purpose. To overcome these drawbacks, a sandwich formation consisting of an intermediate oxygen barrier and a water vapor barrier layer applied on both sides is provided on each side with one layer of a cellulose or paper derivative. The coating on both outer surfaces is selected according to the purpose for which the sandwich formation is to be used. For example, a cellulose derivative that is stable to water-containing foods may be applied to the side to form the inner surface of the wrapper, and a paper may be applied to the side to form the outer surface, which may optionally be printed by a known method.

Medzi deriváty celulózy, vhodné na vytvorenie vrstvy na sendvičovom materiále podľa vynálezu patria napríklad acetát celulózy, diacetát celulózy, propionát celulózy alebo acetobutyrát celulózy.Cellulose derivatives suitable for forming the layer on the sandwich material of the invention include, for example, cellulose acetate, cellulose diacetate, cellulose propionate or cellulose acetobutyrate.

Hrúbka jednotlivých vrstiev sa volí podľa účelu použitia a podmienok okolitého prostredia pri požadovanom použití. Pre jednotlivé vrstvy je výhodná hrúbka vrstvy v rozmedzí od 1 do 50 zum.The thickness of the individual layers is selected according to the purpose of use and the environmental conditions of the desired use. For individual layers, a layer thickness in the range of 1 to 50 µm is preferred.

Obalový materiál podľa vynálezu je pred predčasným biologickým odbúraním chránený povlakom z derivátu celulózy alebo papiera, tekže užitočná doba činí až niekoľko rokov. Zároveň sa s touto vrstvou zvýši mechanická pevnosť. So zneškodnením tohto materiálu po použití nie sú žiadne ťažkosti. Môže sa buď kompostovať, alebo sa rozpadne na dostatočne vlhkých skládkach.The packaging material according to the invention is protected from premature biodegradation by a coating of cellulose or paper derivative, so the useful time is up to several years. At the same time, the mechanical strength is increased with this layer. There is no difficulty in disposing of this material after use. It can either be composted or disintegrated in damp enough dumps.

Pri výrobe materiálov podľa vynálezu sa jednotlivé vrstvy v podobe fólií navzájom kombinujú.In the production of the materials according to the invention, the individual layers in the form of films are combined with one another.

Ďalším predmetom vynálezu je spôsob výroby obalových materiálov podľa vynálezu, pri ktorom sa na vnútornú stranu prostrednú vrstvu z po 1 yv iny1 a 1 koho 1 u, zabraňujúcu prestupu kyslíka, nanesú obe vrstvy zabraňujúce prestupu vodnej pary a ďalšie vrstvy z derivátu celulózy prípadne papiera naliatím, spoločným vytlačovaním, navrstvením alebo laminovaním pri použití lepidla.Another object of the present invention is to provide a method for producing packaging materials according to the invention, wherein an inner oxygen barrier layer is applied to the inner side of both the oxygen barrier, both water vapor barrier layers and other cellulose derivative or paper layers by pouring. , coextrusion, laminating or laminating using an adhesive.

Spôsoby spájania fólií lepením alebo tepelným spracovaním pod tlakom, kašírovaním materiálov na nosný materiál alebo spoločného vytlačovania sú známe a nie je ich potrebné bližšie objasňoavt. Výhodne sa materiál podľa vynálezu vyrába tak, že sa spoločným vytlačovaním vyrobí spojená fólia s po 1 yv iny1 a 1 koho 1om ako prestrednou vrstvou a s kopolymérom po1yhydroxypbutyrátu s polyhydroxyvalerátom tvoriacim obe vonkajšie vrstvy. Táto spoločne vytláčaná trojvrstvá fólia sa neskoršie nakašíruje na vrstvu papiera. Vrstva derivátu celulózy sa nanesie nastriekaním alebo nakašírovaním fólie.Methods of bonding films by gluing or heat treatment under pressure, laminating materials to a carrier material, or coextruding are known and need not be further elucidated. Preferably, the material according to the invention is produced by producing a coextruded film with polyvinyl chloride and intermediate film and a polyhydroxy butyrate copolymer with polyhydroxyvalerate forming both outer layers. This co-extruded three-layer film is later laminated onto the paper layer. The cellulose derivative layer is applied by spraying or laminating the film.

Predmetom vynálezu je tiež použitie obalového materiálu podľa vynálezu na balenie kvapalných a tuhých potravín.The invention also relates to the use of the packaging material according to the invention for packaging liquid and solid foods.

Priemyselná využiteľnosťIndustrial usability

Obalový materiál podľa vynálezu je veľmi všestranný a vhodný pre balenie rôzneho tovaru. Vzhľadom na jeho znášanlivosť ja zvlášť vhodný na použitie pre balenie potavín. Pretože tento materiál je nepriepustný ako pre kyslík, tak i pre vodnú paru a aromatické látky, je vhodný na balenie kvapalných práve tak ako aj tuhých potravín a tiež na balenie veľmi chúlostivého tovaru.The packaging material according to the invention is very versatile and suitable for packaging various goods. Due to its compatibility, it is particularly suitable for use in packaging foodstuffs. Since this material is impermeable to both oxygen and water vapor and flavorings, it is suitable for packaging liquid as well as solid foods and also for packaging very delicate items.

Claims (6)

PATENTOVÉ NÁROKYPATENT CLAIMS 1 Biologicky odbúrateľný obalový materiál, pozostávajúci zo strednej vnútornej vrstvy z po 1 yv iny1 a 1 koho 1 u, zabraňujúcej prestupu kyslíka, ktorá je z oboch strán opatrená vrstvou z po 1yhydroxybutyrátu, po 1 yhydroxyva1erátu alebo kopolyméru týchto zlúčenín, zabraňujúcou prestupu vodnej pary, pričom na každej z týchto vrstiev je ešte nanesená vrstva z derivátu celulózy a/alebo papiera.Biodegradable packaging material consisting of an intermediate inner layer of polyvinyl chloride and an oxygen barrier, which is coated on both sides with a polyhydroxybutyrate layer, a polyhydroxybutyrate or a copolymer of these compounds to prevent water permeability. wherein each of these layers has a layer of cellulose derivative and / or paper. 2. Materiál podľa nároku 1, vyznačený tým, že vrstva * zať-P-aňujúca prestupu vodnej pary je z kopolyméru po 1yhydroxybutyrátu s po 1 yhydroxyva1erátom.Material according to claim 1, characterized in that the water vapor permeability layer (P) is of a copolymer of polyhydroxybutyrate with polyhydroxy valerate. 3. Materiál podľa nároku 1 alebo 2, vyznačený tým, že sendvičový materiál z prostrednej vnútornej vrstvy zabraňujúcej prestupu kyslíka, a z vrstiev, zabraňujúcich prestupu vodnej pary, je na oboch stranách opatrený vrstvou z derivátov celulózy.Material according to claim 1 or 2, characterized in that the sandwich material of the middle inner layer preventing the transfer of oxygen and of the layers preventing the transfer of water vapor is provided on both sides with a layer of cellulose derivatives. 4. Materiál podľa nároku 1 alebo 2, v y z n a č e n ý t ý m, že sendvičový materiál z prostrednej vnútornej vrstvy zabraňujúci prestupu kyslíka , a z vrstiev zabraňujúcich prestupu vodnej pary, je na oboch stranách opatrený vrstvou z derivátu celulózy.Material according to claim 1 or 2, characterized in that the sandwich material of the middle inner layer preventing the passage of oxygen and the layers preventing the passage of water vapor is provided on both sides with a layer of cellulose derivative. 5. Spôsob výroby biologicky odbúrateľného obalového materiálu podľa nároku 1 až 4, vyznačený t ý m, že sa na prostrednú vnútornú vrstvu z po 1 yv iny1 a 1 koho 1 u, zabraňujúcu prestupu kyslíka, nanesú obe uvedené vrstvy zabraňujúce prestupu vodnej pary a ďalšie vrstvy z derivátu celulózy, prípadne papiera, naliatím, spoločným vytlačovaním, navrstvením alebo laminovaním s lepidlom.5. A method for producing a biodegradable packaging material as claimed in any one of claims 1 to 4, wherein both said water vapor barrier layers and the like are applied to the intermediate inner layer of the oxygen barrier. layers of cellulose derivative or paper, by pouring, coextrusion, laminating or laminating with an adhesive. 6. Použitie biologicky odbúrateľného obalového materiálu, podľa nárokov 1 až 4, na balenie kvapalných a tuhých potravín.Use of a biodegradable packaging material according to claims 1 to 4 for packaging liquid and solid foods.
SK1463-93A 1992-12-23 1993-12-22 Biological degradable covering material SK146393A3 (en)

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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9324512D0 (en) * 1993-11-30 1994-01-19 Zeneca Ltd Film
DE4411051C2 (en) * 1994-03-30 1998-04-09 Buna Sow Leuna Olefinverb Gmbh Disposable containers for food, especially for drinking water
DE9421264U1 (en) * 1994-09-02 1995-08-10 Prinz Peter Dipl Ing Lace label for flying reel changes
FI951637A (en) * 1995-04-06 1996-10-07 Yhtyneet Paperitehtaat Oy Packaging
DE19516361A1 (en) * 1995-05-04 1996-11-07 Buna Sow Leuna Olefinverb Gmbh Biodegradable packaging material
FI99268C (en) * 1996-04-04 1998-02-25 Upm Kymmene Oy layer Material
DE19632799A1 (en) * 1996-08-14 1998-02-19 Sengewald Verpackungen Gmbh Good compostable composite multilayer film, process for its preparation and use thereof
SE514845C2 (en) * 1996-09-04 2001-04-30 Tetra Laval Holdings & Finance Biodegradable packaging laminate, methods of producing the packaging laminate and packaging containers made by the packaging laminate
FI112624B (en) * 1998-07-07 2003-12-31 Enso Oyj Compostable coated paper or paperboard, process for its manufacture and products derived therefrom
EP1223113B1 (en) * 2001-01-10 2003-08-27 Buck-Chemie GmbH . Lavatory cleansing product packaged in a water soluble package
JP2008105709A (en) 2006-10-25 2008-05-08 Nihon Tetra Pak Kk Paper lamination packaging material, and its manufacturing method
DE102007015554A1 (en) * 2007-03-29 2008-10-02 Hans Adler Ohg Multilayer film and packaging from this film
WO2012142100A1 (en) * 2011-04-13 2012-10-18 Metabolix, Inc. Biodegradable coextruded multilayer films
FI125255B (en) * 2012-06-08 2015-08-14 Upm Kymmene Corp Method and system for making packaging material and packaging material and packaging
DE102016201498B4 (en) 2016-02-01 2017-08-17 Norbert Kuhl OXYGEN-CONTAINED FOOD CONTAINER
PL126465U1 (en) * 2017-07-04 2019-01-14 Poligrafia Kłyszewski Justyn I Połosak Andrzej Spółka Jawna Packing for food products, preferably for confectionery products
EP3783067B1 (en) 2019-08-21 2022-02-16 Lapp Engineering AG Polymer material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384791A (en) * 1972-04-28 1975-02-19 Grace W R & Co Laminates
NZ205357A (en) * 1983-05-02 1986-01-24 Stolle Res & Dev A method of treating aquatic plants with a controlled release,biologically active agent containing compositions
FR2605335B1 (en) * 1986-10-17 1989-08-25 Andre Bizet BIODEGRADABLE SHEET FOR THE SEALED PACKAGING OF MATERIALS INTENDED TO BE BURIED IN THE SOIL.
US5108755A (en) * 1989-04-27 1992-04-28 Sri International Biodegradable composites for internal medical use
EP0444880B1 (en) * 1990-02-28 1997-05-07 Director-General Of The Agency Of Industrial Science And Technology Process for manufacture of a moldable biodegradable material
US5108807A (en) * 1990-03-14 1992-04-28 First Brands Corporation Degradable multilayer thermoplastic articles
JP2902742B2 (en) * 1990-06-25 1999-06-07 大日本印刷株式会社 Method for producing degradable laminate
IT1242722B (en) * 1990-08-09 1994-05-17 Butterfly Srl LAYERED STARCH FILM AND LOW PERMEABILITY AND PROCEDURE FOR ITS PRODUCTION.
KR100215378B1 (en) * 1991-06-26 1999-09-01 데이비드 엠 모이어 Biodegradable, liquid impervious films

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