[go: up one dir, main page]

WO2002006131A1 - Corps moule pourvu d'un revetement elastique - Google Patents

Corps moule pourvu d'un revetement elastique Download PDF

Info

Publication number
WO2002006131A1
WO2002006131A1 PCT/EP2001/008327 EP0108327W WO0206131A1 WO 2002006131 A1 WO2002006131 A1 WO 2002006131A1 EP 0108327 W EP0108327 W EP 0108327W WO 0206131 A1 WO0206131 A1 WO 0206131A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting element
polymer dispersion
baking
starch
elastic coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2001/008327
Other languages
German (de)
English (en)
Inventor
Anneliese Kesselring
Thomas KÖBLITZ
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.)
APACK AG fur biologische Verpackungen
Original Assignee
APACK AG fur biologische Verpackungen
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 APACK AG fur biologische Verpackungen filed Critical APACK AG fur biologische Verpackungen
Priority to AU2001272553A priority Critical patent/AU2001272553A1/en
Publication of WO2002006131A1 publication Critical patent/WO2002006131A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • 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

Definitions

  • the invention relates to a biodegradable molded body based on a starch-containing composite material with at least two molded elements connected to one another via at least one connecting element, and to a method for producing the same.
  • WO 96/23026 discloses moldings which consist of a starch-fiber composite. These moldings can also be biodegraded, for example by composting. The amount of waste to be disposed of via waste incineration plants or waste dumps can thus advantageously be reduced.
  • the hinge according to US Pat. No. 5,843,544 has a reduced thickness due to the notch or the fold in this region of the hinge, by the thickness that occurs on the inside of the hinge during the bending or kinking Reduce tensions. Due to the notch-like incision, the hinge breaks or tears easily after repeated use.
  • a polyol-containing plasticizer such as e.g. Glycerin, polyethylene glycol, propylene glycol or polypropylene glycol applied to the hinge area.
  • the hinge known from US 5,843,544 thus has several disadvantages.
  • the construction of the hinge with one or more notches or one or more folds is complex.
  • the baking mold in the area in which the hinge area is baked is preferably to be provided with a material with a lower heat capacity or with a poorer heat transfer capacity.
  • Such baking tins are complex to manufacture and more prone to failure in continuous operation.
  • the object on which the invention is based is achieved by providing a biodegradable molded body based on a starch-containing composite material with at least two molded elements connected to one another via at least one connecting element, at least a partial area of the connecting element being provided with a largely elastic coating.
  • the object on which the invention is based is further achieved by a biodegradable molded body based on a starch-containing composite material with at least two molded elements connected to one another via at least one connecting element, at least a partial area of the connecting element being provided with a largely elastic coating, the connecting element being essentially free of polyols is.
  • biodegradable moldings is understood in particular to mean containers such as plates, cups, mugs, hamburger boxes, bowls, etc., which are provided, for example, with a cover such as a lid, the cover being connected to the container via at least one connecting element ,
  • a bakable mass which comprises starch, generally biodegradable fiber material, water and, if appropriate, additives such as protein, fillers, fluxes, dyes, etc.
  • the bakable mass is then baked into a shaped body in waffle molds known per se from wafer baking technology.
  • the waffle shape has a shape corresponding to the molded body to be produced.
  • the baking process takes about 10 to 100 seconds, preferably 60 seconds, at a temperature of 100 to 200 ° C, preferably at 150 ° C in the closed baking pan.
  • starch is understood to mean natural starch, chemically and / or physically modified starch, technically produced or genetically modified starch and mixtures thereof.
  • Starch can be used as starch from corn, for example corn, waxy maize, wheat, barley, rye, oats, millet, rice, etc. or cassava or sorghum.
  • the starch contained in legumes such as beans or peas or the starch contained in fruits such as chestnuts, acorns or bananas can also be used.
  • the starch contained in roots or tubers can also be used.
  • Potato starch is particularly suitable.
  • the potato starch advantageously contains one phosphorus ether group per 200 to 400 anhydroglucose units.
  • the negatively charged phosphate groups are linked to the C6 position of the anhydroglucose unit.
  • the negatively charged phosphate groups by means of mutual repulsion, detangle the individual potato amylopectin molecules. Due to the mutual repulsion of the negatively charged phosphate groups, the branches of the amylopectin molecules are largely unfolded or stretched out. This presence of esterified phosphate groups cause a high viscosity of potato starch-water mixtures.
  • the term “largely elastic coating” is understood to mean that the connecting element is provided with a coating that is compressible, stretchable and / or flexible, without tearing in the event of such compression, expansion and / or bending or the coating breaks.
  • a connecting element arranged between the receptacle and cover container is bent by up to 180 °.
  • the coating on the outside of the connection element when the hamburger box is closed is stretched and the coating on the inside is compressed.
  • the previously stretched area is compressed or the compressed area is stretched without the coating tearing.
  • the elasticity of the coating thus ensures, even after repeated use, that there is no separation of the shaped elements, for example the container and the cover, in the area of the connecting element.
  • biodegradable fiber material means in particular vegetable and animal fibers.
  • cellulose-containing fibers are preferably used as vegetable fibers.
  • Cellulose-containing fibers are fibers of any kind that contain cellulose or consist of cellulose.
  • Animal fibers are so-called protein fibers such as wool, hair or silk.
  • Vegetable fibers that can be in different lengths and widths are particularly preferably used.
  • plant fibers are used which have a length in the range from approximately 50 ⁇ m to approximately 3000 ⁇ m, preferably from approximately 100 ⁇ m to approximately 2000 ⁇ m, further preferably from approximately 150 ⁇ m to approximately 1500 ⁇ m, more preferably from approximately 200 ⁇ m to approximately 900 ⁇ m , most preferably from 300 ⁇ m to about 600 ⁇ m.
  • the width of the plant fibers can be in a range from approximately 5 ⁇ m to approximately 100 ⁇ m, preferably from approximately 10 ⁇ m to approximately 60 ⁇ m, particularly preferably from approximately 15 ⁇ m to approximately 45 ⁇ m.
  • the fibers are mainly made from wood, hemp or cotton. Such fibers can be produced in a manner known to the person skilled in the art.
  • the biodegradable moldings can also contain protein on the basis of a composite formed from starch and biodegradable fiber material.
  • protein is understood to mean biopolymers based on amino acids. All so-called proteinogenic amino acids, i.e. the amino acids usually involved in protein building, as well as the so-called non-proteinogenic amino acids, which are usually not involved in protein building.
  • protein is also understood to mean peptides or polypeptides.
  • protein in the context of the invention also includes naturally occurring protein, chemically modified protein, enzymatically modified protein, recombinant protein, protein hydrolyzates or mixtures thereof.
  • the protein can be of vegetable or animal origin.
  • a bakable mass (baking mass, dough) comprising starch, biodegradable fiber material, protein and water surprisingly enables a shortening of the baking time of up to 35%, preferably up to 50%, compared to a bakeable mass without the use of protein. Furthermore, the use of protein enables the material requirement for the production of moldings to be reduced by up to 10% by weight to 20% by weight.
  • proteins of animal origin such as actin, myoglobin, myosin, hemoglobin, collagen, elastin, immunoglobulins, keratins, fibroin, conchagens, ossein, albumins, caseins, FPC (fish protein concentrate) can be used as proteins.
  • Casein, alkali caseinate, alkaline earth caseinate, casein hydrolyzate and mixtures thereof can also be used.
  • Prolamines such as e.g. Gliadin, Secalin, Hordein, Zein and corn and soy protein can be used. Soy protein in particular has proven to be extremely suitable. Soy protein is also extremely advantageously available commercially in large quantities at low cost.
  • Hydrophobic proteins are preferably used as proteins. Hydrophobic proteins are characterized by a high proportion of uncharged amino acids in the amino acid sequence. In particular, these proteins contain high proportions of glycine, alanine, valine, leucine, isoleucine, phenylalanine, tryptophan, proline and methionine, all of which give the protein a hydrophobic character. It is clear to the person skilled in the art that the proteins listed above are only an exemplary selection to illustrate the invention. Of course, other proteins or protein mixtures can also be used. An important criterion is that the price of the protein or protein mixture to be used is low in view of the very large numbers of moldings to be produced.
  • a molded body produced using a protein-containing bakable composition has a more closed surface.
  • a more closed surface is particularly advantageous with regard to the thermal insulation ability of the molded body.
  • the bakable mass can additionally comprise additives.
  • additives make it possible to influence the properties of the biodegradable molded article produced.
  • hydrophobizing agents, whitening agents, food colors, flavorings etc. can be contained in the bakable mass as additives.
  • additive includes any compounds that are suitable for influencing the product properties of the molded body. These additives are preferably completely or essentially completely biodegradable. Preferred examples of these additives are hydrophobizing agents, whitening agents, colorants, food colors, flavorings, etc.
  • Hydrophobizing agents are constituents which impart hydrophobic properties to the molded article produced.
  • Whiteners are compounds that are used to lighten the color of the moldings.
  • blue dyes are used as dyes, which are used, for example, for coloring fruit bowls or fruit carriers.
  • the following blue dyes can be used, for example: natural colors or lacquered colors.
  • Green dyes are also used, for example, which are used for coloring shells to hold plants.
  • the following green dyes can be used, for example: natural colors or lacquered colors.
  • Food colors are dyes used to color the packaging of food.
  • any aroma substance in particular biodegradable aroma substance, which, for example, imparts a certain smell and / or taste to the molded article produced, can be used as the aroma substance.
  • hydrophobizing agents are fluoroalkyl polymers, the term "fluoroalkyl polymers" indicating that they are polymers which are composed of, in particular, repeating alkyl units, it being possible for one or more, possibly even all, hydrogen atoms to be replaced by fluorine atoms.
  • a hydrophobizing agent based on a perfluoroalkyl acrylate copolymer can be used.
  • the whitening agent can be a compound with at least one disulfone group.
  • Such compounds are well known to those skilled in the relevant technical field.
  • An example of such a disulfonic acid compound is 4,4'-bis (1,3,5-triazinylamino) stilbene-2,2'-disulfonic acid.
  • baking mass is understood to mean a baking mass or a dough which is used in baking devices known from wafer baking technology, such as e.g. Baking tongs can be baked to form a shaped body.
  • the bakeable mass is, for example, placed in a heated baking mold of such a known baking device, whereupon the bakeable mass is distributed in the baking mold and fills it completely.
  • the bakeable mass present in the baking pan releases water or water vapor when exposed to heat, which emerges from the baking pan through the provided outlet channels. During this process, the bakeable mass is solidified, providing the desired shaped body.
  • the bakable mass contains from about 3% to about 15%, preferably from about 5% to about 10%, most preferably from 7.8% to about 9.8% by weight.
  • biodegradable fiber material preferably cellulose-containing fibers.
  • the bakable composition preferably contains from about 6% by weight to about 30% by weight, preferably from about 10% by weight to about 25% by weight, most preferably from about 16.1% by weight to about 20.05 % By weight native starch.
  • the bakable composition preferably contains from about 2% by weight to about 10% by weight, preferably from about 4% by weight to about 8% by weight, most preferably from about 5.4% by weight to 6.8 % By weight pre-gelatinized starch.
  • the bakable composition preferably contains from about 45% by weight to about 90% by weight, preferably from about 60% by weight to about 80% by weight, more preferably from about 60% by weight. % to about 75% by weight, most preferably from about 63% to about 71% by weight of water.
  • Protein in the bakeable mass is preferably in an amount of up to 10% by weight, preferably up to about 5% by weight, more preferably about up to 3% by weight of protein, most preferably up to about 2% by weight. % contain.
  • a fat-containing release agent can be added during the preparation of the bakable mass.
  • the biodegradable moldings produced in accordance with the above explanations have a fiber material-starch composite or, if protein is used, a fiber material-starch-protein composite.
  • the elastic coating is arranged on the connecting element.
  • the molded body produced using the waffle baking process and thus also the connecting elements have a relatively closed surface.
  • the coating applied in the preferably liquid state can also partially penetrate into the surface. This partial penetration of the coating into the connecting element, if appropriate, improves the adhesion of the coating on or to or in the connecting element. Furthermore, it is not excluded that the partial penetration of the coating material into the connecting element also leads to an improvement in the elasticity of the starchy structure of the connecting element itself.
  • the application of the elastic coating does not necessarily have the effect that the starch-containing composite or the starch-fiber-containing composite of the connecting element does not break off or tear through during use, ie when the connecting element bends or kinks during opening or closing of the shaped body becomes.
  • the starchy composite material of the connecting element breaks or tears, separation of the molded elements previously connected to one another via the connecting element is reliably prevented by the applied coating.
  • the coating thus acts as an elastic link which still connects the shaped elements to one another.
  • the connecting element extends substantially flat and has a first and a second outer surface, at least a partial area of the first and / or second outer surface being provided with the elastic coating.
  • the coating can be applied and arranged particularly easily.
  • several connecting elements between the shaped elements e.g. a cover element and a container element can be arranged.
  • two or three connecting elements can be provided, which are arranged evenly spaced from one another between the shaped elements.
  • the coating can be provided on one or else on both outer surfaces of a flat connecting element. Furthermore, the coating can only be provided in the area of the connecting element which experiences the greatest bending when the molded body is used, ie the area in which the greatest tension occurs in the starch-containing composite. For reasons of simplicity, however, it can be preferred that the coating is applied in principle to both outer surfaces of the connecting element and that the connecting element between the shaped elements is completely coated.
  • the object on which the invention is based is achieved by a shaped body as described above, in which the connecting element is essentially free of polyols.
  • the connecting element preferably contains no polyol.
  • plasticizers in the form of polyols, such as, for example, glycerol, polyethylene glycol, propylene glycol, polypropylene glycol and sorbitol, to the connecting element.
  • the elastic coating is an elastic lacquer film with a film former, at least one component of the film former comprising a synthetic resin.
  • the film-forming component is preferably selected from the group consisting of polyurethane, polyester, polyether and mixtures thereof.
  • the aforementioned film formers can advantageously be used as an aqueous dispersion, ie as water-based paints.
  • water-based paints ie as water-based paints.
  • the use of water as a solvent enables the molded articles according to the invention to be produced in an environmentally friendly manner.
  • the free carboxyl groups can be converted into the corresponding salts by neutralization, for example using amines, preferably volatile amines, in order to increase their water solubility.
  • amines preferably volatile amines
  • the lacquer film is formed, the amines evaporate and result in a lacquer film that is relatively resistant to moisture and moisture.
  • Polyether groups can also be provided in the film former in order to enable the synthetic resin to be dispersed in an aqueous medium via the ether group.
  • polyethylene oxide groups can be provided in the film former.
  • Polyurethane dispersions have also proven to be very suitable. Polyurethane dispersions have a good environmental impact. Furthermore, they can be processed in one component, since they dry physically. In addition, chemical crosslinking is also possible if this is desired. Polyurethane lacquer films have high mechanical strength (abrasion resistance) and have the desired flexibility (elasticity). It is extremely advantageous to use no external emulsifiers in the production of polyurethane dispersions.
  • the film-forming component comprises polyurethane and acrylate and / or polyacrylate.
  • the elastic coating is essentially free of plasticizers in the form of polyols.
  • the thickness of the applied coating is preferably in a range of less than 500 ⁇ m, more preferably less than 100 ⁇ m, more preferably less than 50 ⁇ m, most preferably less than 20 ⁇ m, most preferably less than 5 ⁇ m.
  • the object on which the present invention is based is further achieved by providing a method for producing a biodegradable molded body based on a starch-containing composite material with at least two molded elements connected to one another via at least one connecting element, wherein a starch-containing bakable mass is baked in a baking mold, after baking at least a partial area of the connecting element is applied with a polymer dispersion and subsequently a largely elastic coating is formed while volatilizing the solvent.
  • the " object " on which the present invention is based is further achieved by providing a method for producing a biodegradable molded article based on a starch-containing composite material with at least two molded elements which are connected to one another by at least one connecting element by baking a starch-containing bakable mass in a baking pan, in which after baking an essentially polyol-free polymer dispersion is applied to at least a portion of the connecting element and a largely elastic coating is subsequently formed while volatilizing the solvent.
  • the application of a polymer dispersion can be applied in the method according to the invention by conventionally known application methods such as brushing, rolling, drawing, wiping, pouring, rolling, dipping, flooding, vacuum painting, spraying, atomizing, etc.
  • the connecting element extends essentially flat and is formed with a first and a second outer surface, the polymer dispersion being applied to at least a portion of the first and / or second outer surface.
  • the solvent of the polymer dispersion is volatilized after application of the polymer dispersion to the connecting element under the application of heat and / or energy.
  • the heat can be brought about by convection drying (forced air drying). Drying can also be effected by irradiation of UV radiation, IR radiation or microwave radiation. Inductive drying, in which heat is developed through induced alternating currents, can also be used.
  • the solvent of the polymer dispersion is preferably volatilized after the polymer dispersion has been applied to the connecting element using the residual heat of the baked molded body.
  • the residual heat contained in the baked molded body can be used to volatilize (evaporate) the solvent, preferably water.
  • the solvent preferably water.
  • the warm exhaust air drawn off during the baking process can be used to dry the coated moldings.
  • the polymer dispersion contains at least one film former, at least one component of the film former comprising a synthetic resin.
  • the film-forming component is preferably selected from the group consisting of polyurethane, polyester, polyether and mixtures thereof.
  • Aqueous dispersions of aliphatic polyesters and polyurethanes are particularly useful. Furthermore, aqueous dispersions of polyester polyurethanes and polyether polyurethanes have proven to be very suitable in the process according to the invention.
  • the film-forming component further preferably comprises polyurethane and acrylate and / or poly acrylate.
  • the solvent is preferably predominantly, particularly preferably exclusively, water.
  • polymer dispersions may also contain other additives, such as defoamers, dispersants, thixotropic agents, coalescing agents, etc.
  • the at least two molded elements of a biodegradable molded body can thus be opened and closed again and again very advantageously without the risk of the molded elements (container element, cover element) separating from one another.
  • the shaped body according to the invention which consists of at least one connecting element and two shaped elements, can be provided by means of wafer baking technology.
  • the baking tins for the two shaped elements for example the two halves a hamburger box, are connected to each other via a strip or ribbon-shaped web.
  • the baking mass spreads evenly in the baking mold with evaporation of water and as a result of pressure increase.
  • the strip-like or band-shaped web is then filled evenly with baking mass and a shaped body according to the invention is provided by baking.
  • the molded bodies according to the invention can be produced with a high throughput, without producing errors in the connecting element.
  • the baking pan can be made consistently of the same material, for example metal or steel. This enables inexpensive and simple manufacture of the baking molds. Furthermore, these baking tins have a very long shelf life and are practically prone to failure.
  • the choice of the length and the thickness of the connecting element can be influenced by various factors, such as the size of the shaped elements to be connected to one another. Furthermore, the fiber content in the bakable mass, the length and width and the type of fibers used can have an influence on the length and thickness of the connecting element to be selected.
  • the connecting element has a thickness of approximately 0.1 mm to approximately 1.5 mm, preferably approximately 0.25 to approximately 1.2 mm, more preferably approximately 0.3 mm to approximately 0.8 mm.
  • the length of the connecting element which is defined by the spacing of the molded elements connected to one another, can be approximately 0.25 cm to approximately 6 cm, preferably approximately 0.5 cm to approximately 3 cm.
  • the width of the connecting elements can be freely varied depending on the intended use. The width of the connecting element can extend over the full or partial width of the interconnected molded elements.
  • the at least two shaped elements are connected to one another via at least one connecting element such that they can be arranged one above the other. That is, when forming a first shaped element as a container and a second molded element as a cover, then at least one connecting element is arranged between the container and the cover in such a way that the container can be closed with the cover without the connection between the container element and the cover element having to be released.
  • Figure 1 shows a perspective view of an exemplary embodiment of the
  • the hamburger box (1) is closed by moving the cover container (3) along the arrow shown over the receptacle (2) and arranging it thereon.
  • the connecting element (4) which is provided with an elastic coating, is bent by approximately 180 ° without causing a separation of the receptacle (2) and the cover container
  • a hamburger box as exemplified in Fig. L, with the usual dimensions (width of a square half: about 12-14 cm, depth of a half: about 3-4 cm), with the two halves along one side over a distance of about 9 cm via a strip-shaped connecting element with a length (distance between the two halves of the hamburger box from each other) of about 0.5 cm to about 1 cm was provided with an elastic coating on both outer surfaces of the connecting element.
  • the connecting element had a thickness of approximately 200 ⁇ m to approximately 500 ⁇ m.
  • the following dispersion paints were used in each case to form an elastic coating.
  • the dispersion lacquers were each applied to the two outer surfaces of the connecting element by brushing and, after drying by irradiation with IR radiation, gave an approximately 5 ⁇ m thick coating. In the case of the moldings obtained in each case, the coating adhered very well to the starch-fiber composite and had very good elasticity.
  • Senolith ® -WL elastic coating LA 2-14 / 115 A from Weilburger Lackfabrik GmbH & Co. KG, D-91466 Gerhardshofen, Germany, which is an aqueous dispersion of aliphatic polyesters and polyurethanes.
  • Lacquer 076-090-05840 from Kristall Lack H. Müller GmbH & Co. KG in D-42277 Wuppertal, Germany, which is a dispersion of polyester-polyurethane and polyether-polyurethane.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un corps moulé biodégradable à base d'un matériau composite contenant de l'amidon, et comportant au moins deux éléments moulés reliés l'un à l'autre par l'intermédiaire d'au moins un élément de liaison, au moins une partie de l'élément de liaison étant pourvue d'un revêtement élastique dans une large mesure. L'invention concerne en outre un procédé permettant de produire un corps moulé, ainsi que l'utilisation d'une dispersion de polymère.
PCT/EP2001/008327 2000-07-18 2001-07-18 Corps moule pourvu d'un revetement elastique Ceased WO2002006131A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001272553A AU2001272553A1 (en) 2000-07-18 2001-07-18 Shaped body coated with an elastic coating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10034901.3 2000-07-18
DE2000134901 DE10034901A1 (de) 2000-07-18 2000-07-18 Verbindungselement mit elastischer Beschichtung

Publications (1)

Publication Number Publication Date
WO2002006131A1 true WO2002006131A1 (fr) 2002-01-24

Family

ID=7649324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/008327 Ceased WO2002006131A1 (fr) 2000-07-18 2001-07-18 Corps moule pourvu d'un revetement elastique

Country Status (3)

Country Link
AU (1) AU2001272553A1 (fr)
DE (1) DE10034901A1 (fr)
WO (1) WO2002006131A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6878199B2 (en) 2002-01-11 2005-04-12 New Ice Limited Biodegradable or compostable containers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023026A1 (fr) 1995-01-26 1996-08-01 Rapido Waagen- Und Maschinenfabrik Gmbh Procede de production de corps moules a partir de materiau biodegradable et corps moules ainsi produits
US5843544A (en) 1994-02-07 1998-12-01 E. Khashoggi Industries Articles which include a hinged starch-bound cellular matrix
US5851634A (en) * 1992-08-11 1998-12-22 E. Khashoggi Industries Hinges for highly inorganically filled composite materials
EP0960711A2 (fr) * 1994-10-21 1999-12-01 E. Khashoggi Industries Compositions d'amidon expansé, articles et procédés associés

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5851634A (en) * 1992-08-11 1998-12-22 E. Khashoggi Industries Hinges for highly inorganically filled composite materials
US5843544A (en) 1994-02-07 1998-12-01 E. Khashoggi Industries Articles which include a hinged starch-bound cellular matrix
EP0960711A2 (fr) * 1994-10-21 1999-12-01 E. Khashoggi Industries Compositions d'amidon expansé, articles et procédés associés
WO1996023026A1 (fr) 1995-01-26 1996-08-01 Rapido Waagen- Und Maschinenfabrik Gmbh Procede de production de corps moules a partir de materiau biodegradable et corps moules ainsi produits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6878199B2 (en) 2002-01-11 2005-04-12 New Ice Limited Biodegradable or compostable containers
US7083673B2 (en) 2002-01-11 2006-08-01 New Ice Limited Biodegradable or compostable containers
US7967904B2 (en) 2002-01-11 2011-06-28 New Ice Limited Biodegradable or compostable containers

Also Published As

Publication number Publication date
AU2001272553A1 (en) 2002-01-30
DE10034901A1 (de) 2002-02-07

Similar Documents

Publication Publication Date Title
EP0672080B1 (fr) Procede permettant de fabriquer des corps moules a paroi fine, biodegradables, a base d'amidon
DE60206899T2 (de) Etikette
EP3856649B1 (fr) Gobelet en matières végétales purs
EP0833564A1 (fr) Procede de fabrication d'articles moules decomposables, a paroi mince
DE3223443A1 (de) Zusammensetzung und verfahren zur ausbildung eines voruebergehenden schutzueberzugs auf einem gegenstand und so geschuetzter gegenstand
DE2414452A1 (de) Wiederbefeuchtbare klebstoffe fuer vorgummierte klebstreifen auf pflanzengrundlage
DE69403822T2 (de) Verfahren zur Herstellung von einem biologisch abbaubaren, wasserbeständigen Film und Verfahren, um einen biologisch abbaubaren Artikel wasserbeständig zu machen
WO2002006131A1 (fr) Corps moule pourvu d'un revetement elastique
DE69507035T2 (de) Bioabbaubares behälter für flüssige oder halbflüssige nahrungsmittel oder andere produkte
DE2239227A1 (de) Wasserloeslicher behaelter und verfahren zu seiner herstellung
DE10031630C2 (de) Formkörper mit Verbindungselement
EP0506650A2 (fr) Matériau d'emballage biodégradable et procédé pour l'obtenir
DE1594246A1 (de) Sich nicht wellendes gummiertes Papier und Verfahren zu dessen Herstellung
WO1997043485A1 (fr) Piece moulee formee de fibres de paille, de fibres de papier et d'un liant, et son procede de fabrication
AT7186U1 (de) Verfahren zur beseitigung von fehlstellen in der narbenschicht eines vollnarbigen leders, sowie leder, dessen fehlstellen in der narbenschicht beseitigt sind
EP1330488A2 (fr) Revetement de corps moules biodegradables
EP1732996A2 (fr) Utilisation d'amidon de pomme de terre hydroxypropyle et a haute teneur en amylose pour obtenir un indice kit eleve
WO2001081193A1 (fr) Corps moule revetu d'une pellicule
DE10000774A1 (de) Zusammensetzung zur Herstellung von biologisch abbaubaren Formkörpern sowie Verfahren zur Herstellung einer solchen Zusammensetzung
DE2927308C2 (de) Wäßriges Überzugsmittel als Schutzüberzug für Schaumkunststoffsubstrate
WO2003020803A2 (fr) Film adhesif biodegradable et corps faconne revetu d'un tel film
DE19541681A1 (de) Bioabbaubares Papiererzeugnis und Verfahren zur Herstellung dieses Erzeugnisses
EP3241677A1 (fr) Composite stratifié thermoformable comprenant une barrière à l'oxygène et formulation comprenant une protéine destinée à fabriquer le composite stratifié
AT403645B (de) Verfahren zum wasserabweisenden bzw. wasserdichten beschichten von formkörpern
DE19961843A1 (de) Schlauchfolien aus Cellulose-Protein-Blends

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP