WO2002088245A1 - Procede de production d'emballages et de corps moules biodegradables - Google Patents

Procede de production d'emballages et de corps moules biodegradables Download PDF

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Publication number
WO2002088245A1
WO2002088245A1 PCT/EP2002/004590 EP0204590W WO02088245A1 WO 2002088245 A1 WO2002088245 A1 WO 2002088245A1 EP 0204590 W EP0204590 W EP 0204590W WO 02088245 A1 WO02088245 A1 WO 02088245A1
Authority
WO
WIPO (PCT)
Prior art keywords
starch
additives
packaging
production
biodegradable
Prior art date
Application number
PCT/EP2002/004590
Other languages
German (de)
English (en)
Inventor
Heinrich Holter
Klaus-Peter Hoetzeldt
Reinhard Lindner
Christian Schaarschmidt
Hans-Peter Schmauder
Original Assignee
Compopure Staerke Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compopure Staerke Ag filed Critical Compopure Staerke Ag
Priority to DE10291848T priority Critical patent/DE10291848D2/de
Publication of WO2002088245A1 publication Critical patent/WO2002088245A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/04—Starch derivatives, e.g. crosslinked derivatives

Definitions

  • the invention relates to a process for the production of biodegradable packaging and molded articles, in particular consisting of biodegradable material and renewable raw materials, and packaging and foils produced by this process.
  • Biodegradable packaging or molded articles are used to protect the environment, for example in the area of disposable packaging, the fast food area, agriculture and forestry, horticulture and other areas of daily use.
  • such products are manufactured on the basis of fiber-containing materials, such as, for example, the lignocellulosic materials, paper or paper waste.
  • the fiber lengths are given as about 1 mm.
  • Latex, starch, water glass or mixtures thereof are used as binders.
  • this procedure requires a large amount of water and energy.
  • a process for the production of molded articles with a barrier layer both consisting of biodegradable material, is known.
  • the impregnation leading to the barrier function acts on the molded body and is produced in the baking process.
  • the viscous mixtures used usually contain biodegradable fiber material of different fiber lengths, water and starch.
  • the molded body is rendered hydrophobic with cellulose acetate or cellulose acetate propionate without plasticizers or separately with a film coating based on polyesteramide, polyester or polylactic acid. This way of hydrophobing or impregnation is only successful if the molded body is treated during or after shaping.
  • containers for the storage, distribution, packaging and / or portioning of foodstuffs or other products are produced from aggregates with organic binders, water, fibers, glass balls, air bubbles in the mixtures, starch or starch-containing products,
  • Packaging materials made from natural fiber materials are described in DE 4240 174. However, these materials are not optimally manageable in the context of environmentally friendly disposal, as they are for the Production of the binding agents necessary to interfere with the biodegradability. Add to that the pressure. and heat treatment make the manufacturing process uneconomical.
  • a packaging material for disk-shaped storage media is described in German utility model DE 295 05 432.8. It is a cardboard packaging.
  • Shaped bodies from pressed compost and its production are described in DE 195 07 928. Because of the basic material used (con ⁇ ost material), such packaging materials can only be used in a very narrow range, for example in the areas of agriculture, forestry and horticulture.
  • EP 0 545 277 describes biodegradable packaging made of paper, paper products and celluloses. These packaging materials are relatively rough in their structure and are not suitable for all packaging processes.
  • biodegradability among other things, a controllability of the swelling and the solubility of the molded bodies / packagings and their degradation products.
  • Pre-gelatinized, cross-linked starch is in the document DE 19627498 as
  • Crosslinking with PE foam or other organic materials is disclosed, for example, in the utility models DE 29509870, DE 29902635, DE 29903664.
  • pure starch or starch derivatives are used for crosslinking, these crosslinking generally being carried out by using further polymers which can reduce the degree of biodegradability.
  • the invention is therefore based on the object of specifying a method for producing biodegradable packagings and moldings which can be controlled in their degradation behavior, while avoiding the disadvantages of the prior art. According to the invention, this object is achieved by the characterizing features of the first claim. advantageous Refinements are specified by the subordinate claims.
  • the essence of the invention is that a substance mixture of starch, water, separating and thickening agents, natural fibers, natural fillers and pre-crosslinked starch derivatives from vegetable meal as additives are thermally bonded by baking processes, injection molding or extruders.
  • pre-crosslinked additives in the form of the special vegetable flours leads to a reduction in the water absorption capacity and to an increase in the surface evaporation resistance and dimensional stability. The best results can be achieved with a high degree of networking.
  • the advantage of the method according to the invention is that the shaped bodies produced by means of this method are suitable for packaging a wide variety of products, for example in sandwich or other construction, and consist primarily of renewable and biodegradable raw materials, so that environmentally friendly disposal of these shaped bodies is possible, whereby the biodegradability can be controlled by adding the additives according to the invention.
  • the molded articles produced with the method according to the invention comprise as packaging materials the favorable properties of cardboard packaging and partially foamed plastic packaging, are easily reusable due to the controllable biodegradability and at the same time are readily biodegradable.
  • Fig. 3 the degradation behavior of cross-linked or uncross-linked starch materials based on cereal flour.
  • a mixture of substances consisting of starch, water, separating and thickening agents, natural fibrous materials, and additives in the form of pre-crosslinked starch derivatives from cereal flours is intimately combined by baking or injection molding processes.
  • the molded body 2 is formed within the metallic geometric tool mold 1 with opposing molding and baking surfaces 3 with simultaneous mixing and crosslinking of the substance mixture the thermal treatment on the mold and baking surfaces (3) a molded body outer skin (4) is formed with an increased degree of crosslinking and polymerization.
  • the degree of crosslinking and polymerization decreases towards the inside of the molded body 2 and increasingly changes into a blistered structure (5).
  • the crosslinking and polymerization planes (6, 7) run, as shown in the figure, at right angles to one another.
  • the substance mixture can be composed, for example, as follows:
  • Starch also in the form of vegetable mixtures with a defined starch content approx. 25-35%
  • the amount of which preferably amounts to 5.5 to 30% of the total amount of the mixture of substances, cereal or other starch and protein-containing vegetable meal crosslinked by etherification or other processes are used.
  • These products are pre-crosslinked by gentle alkylation and / or etherification and / or esterification and thus inhibition of quenching.
  • the biodegradability is guaranteed and can be controlled by the type of derivatization.
  • These additives have a water absorption capacity that is reduced by up to 85% (optimally between 50 and 80%). Because of this property, there is a delayed degradation of the shaped bodies produced according to the method according to the invention.
  • the degree of crosslinking of the additives is 10 "6 to 10 " 2 , preferably 10 "5 to 10 " 3 .
  • the optimal degradation properties of the shaped bodies are given with an average degree of crosslinking of the additives (between the starch and the starch derivatives, between the proteins and the starch or between the proteins of the cereal flours).
  • crosslinked additives can also be subjected to the usual processes, such as injection molding or extrusion, within the substance mixture.
  • FIG. 2 shows the behavior of the molded bodies manufactured by means of the method according to the invention with regard to the
  • FIG. 3 shows the behavior of crosslinked and uncrosslinked starchy materials based on cereal flour.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention vise à mettre au point un procédé permettant de produire des emballages et des corps moulés biodégradables, à biodégradabilité régulable, en palliant les inconvénients de l'état de la technique. A cet effet, un mélange de substances comprenant de l'amidon, de l'eau, des agents de séparations, et des épaississants, des substances fibreuses naturelles et des additifs naturels est combiné par voie thermique sous pression, du fait que les additifs sont des dérivés d'amidon préréticulés issus de farines de céréales.
PCT/EP2002/004590 2001-04-26 2002-04-25 Procede de production d'emballages et de corps moules biodegradables WO2002088245A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10291848T DE10291848D2 (de) 2001-04-26 2002-04-25 Verfahren zur Herstellung von biologisch abbaubaren Verpackungen und Formkörpern

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE10120560 2001-04-26
DE10120560.0 2001-04-26
DE10121280 2001-05-01
DE10121277 2001-05-01
DE10121280.1 2001-05-01
DE10121277.1 2001-05-01

Publications (1)

Publication Number Publication Date
WO2002088245A1 true WO2002088245A1 (fr) 2002-11-07

Family

ID=27214408

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/004590 WO2002088245A1 (fr) 2001-04-26 2002-04-25 Procede de production d'emballages et de corps moules biodegradables

Country Status (2)

Country Link
DE (1) DE10291848D2 (fr)
WO (1) WO2002088245A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012421A1 (fr) * 2003-07-31 2005-02-10 Alonid Aktiengesellschaft Produit auxiliaire biodegradable pour construction en beton, son procede de fabrication et son utilisation
WO2009099607A1 (fr) * 2008-02-01 2009-08-13 L'oreal Conditionnements imperméables à l'humidité biodégradables pour des biens de consommation
DE102016004464A1 (de) 2016-04-15 2017-10-19 Martin-Luther-Universität Halle-Wittenberg Verpackung von Milch in auflösbaren Portionskapseln und Verfahren zu deren Herstellung duch lonen-Hydrokolloid-lnteraktionen
DE102016004463A1 (de) 2016-04-15 2017-10-19 Martin-Luther-Universität Halle-Wittenberg Verpackung von Milch in auflösbaren Portionskapseln und Verfahren zu deren Herstellung durch Kristallisation
CN113583466A (zh) * 2021-07-22 2021-11-02 湖北嘉鑫环保新材料科技有限公司 一种适度交联淀粉生物降解塑料及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474095A1 (fr) * 1990-09-03 1992-03-11 Bühler Ag Composition et procédé pour former des articles d'usage biodégradable
US5153037A (en) * 1988-12-30 1992-10-06 National Starch And Chemical Investment Holding Corporation Biodegradable shaped products and the method of preparation thereof
CN1102371A (zh) * 1993-11-04 1995-05-10 刘定太 多功能人造木材
JPH08134266A (ja) * 1994-11-10 1996-05-28 Shigemasa Suzuki 植物高分子耐水組成物及び製法
CN1127276A (zh) * 1995-11-08 1996-07-24 何顺伦 生物降解的植物纤维包装材料及其制法
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5153037A (en) * 1988-12-30 1992-10-06 National Starch And Chemical Investment Holding Corporation Biodegradable shaped products and the method of preparation thereof
EP0474095A1 (fr) * 1990-09-03 1992-03-11 Bühler Ag Composition et procédé pour former des articles d'usage biodégradable
CN1102371A (zh) * 1993-11-04 1995-05-10 刘定太 多功能人造木材
JPH08134266A (ja) * 1994-11-10 1996-05-28 Shigemasa Suzuki 植物高分子耐水組成物及び製法
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
CN1127276A (zh) * 1995-11-08 1996-07-24 何顺伦 生物降解的植物纤维包装材料及其制法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE CHEMABS [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; HE SHUNLUN: "Biodegradable plant fiber packaging material and producing method", XP002213091, retrieved from STN Database accession no. 131:186449 *
DATABASE CHEMABS [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; SUZUKI SHIGEMASA: "Starch vegetable fiber composites with good resistance to water and their manufacture", XP002213092, retrieved from STN Database accession no. 125:145517 *
DATABASE WPI Week 199726, Derwent World Patents Index; AN 1997-281478, XP002213093, "Multifunction artificial wood" *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012421A1 (fr) * 2003-07-31 2005-02-10 Alonid Aktiengesellschaft Produit auxiliaire biodegradable pour construction en beton, son procede de fabrication et son utilisation
WO2009099607A1 (fr) * 2008-02-01 2009-08-13 L'oreal Conditionnements imperméables à l'humidité biodégradables pour des biens de consommation
US8481134B2 (en) 2008-02-01 2013-07-09 L'oreal. Biodegradable moisture-impermeable packages for consumer goods
DE102016004464A1 (de) 2016-04-15 2017-10-19 Martin-Luther-Universität Halle-Wittenberg Verpackung von Milch in auflösbaren Portionskapseln und Verfahren zu deren Herstellung duch lonen-Hydrokolloid-lnteraktionen
DE102016004463A1 (de) 2016-04-15 2017-10-19 Martin-Luther-Universität Halle-Wittenberg Verpackung von Milch in auflösbaren Portionskapseln und Verfahren zu deren Herstellung durch Kristallisation
DE102016004463B4 (de) 2016-04-15 2018-03-08 Martin-Luther-Universität Halle-Wittenberg Verpackung von Milch in auflösbaren Portionskapseln und Verfahren zu deren Herstellung durch Kristallisation
CN113583466A (zh) * 2021-07-22 2021-11-02 湖北嘉鑫环保新材料科技有限公司 一种适度交联淀粉生物降解塑料及其制备方法

Also Published As

Publication number Publication date
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