WO2021245144A1 - Composition et matériau biodégradables et compostables - Google Patents

Composition et matériau biodégradables et compostables Download PDF

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Publication number
WO2021245144A1
WO2021245144A1 PCT/EP2021/064817 EP2021064817W WO2021245144A1 WO 2021245144 A1 WO2021245144 A1 WO 2021245144A1 EP 2021064817 W EP2021064817 W EP 2021064817W WO 2021245144 A1 WO2021245144 A1 WO 2021245144A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
composition
final composition
biodegradable
compostable
Prior art date
Application number
PCT/EP2021/064817
Other languages
English (en)
Inventor
Åke ROSÉN
Original Assignee
Gaia Holding Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP20178306.5A external-priority patent/EP3919568A1/fr
Priority claimed from EP20200366.1A external-priority patent/EP3981838A1/fr
Application filed by Gaia Holding Ab filed Critical Gaia Holding Ab
Priority to EP21729898.3A priority Critical patent/EP4161998A1/fr
Publication of WO2021245144A1 publication Critical patent/WO2021245144A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • 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
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • 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

  • recycled plastic or rubber has in some cases shown to compose substances toxic to human or nature, making them not suitable for use at places where they are exposed to humans.
  • EP 3 260 495 discloses a biodegradable polyester composition
  • a biodegradable polyester composition comprising 60-100 parts of biodegradable aliphatic-aromatic polyester.
  • the composition further comprises polylactic acid (PLA), organic and/or inorganic filler as well as copolymer which contains epoxy groups and is based on styrene, acrylate and/or methacrylate.
  • PLA polylactic acid
  • organic and/or inorganic filler as well as copolymer which contains epoxy groups and is based on styrene, acrylate and/or methacrylate.
  • a further object of the present invention is to provide a method for preparing a biodegradable and compostable material, optionally embossed biodegradable and compostable material, which is made from renewable resources, which is biodegradable, compostable, and which does not leave micro plastics.
  • a further objective of the present invention is to provide a biodegradable and compostable material, optionally embossed material, obtained by the method.
  • Fig. 1 b discloses the results of tensile strength test using a composition including an embossing step during production.
  • the composition according to the invention may include at least one oil of vegetable origin.
  • the oil may be rape seed oil.
  • Glycerol being a polyol could be an alternative to a vegetable oil.
  • the at least one oil of vegetable origin constitute 1-5 % by weight of the composition. For example, 3-5 % by weight of the final composition.
  • the at least one oil of vegetable origin may for example constitute 2, 3, or 5 % by weight of the composition.
  • the aliphatic polyester is an acid modified with alcohol.
  • the aliphatic polyester consists of polymerized units, where the repeating units consist of up to 15 carbon atoms such as up to 10 carbon atoms.
  • the aliphatic polyester is a biodegradable polyester, such as polybutylene succinate (PBS).
  • PBS polybutylene succinate
  • Polybutylene succinate being a fossil-free renewable polyester synthesized from 1 ,4-butane diol and succinic acid.
  • PBS consists of polymerized units of butylene succinate, with repeating C8H12O4 units.
  • aliphatic polyester may be polybutyl acrylate.
  • the at least one aliphatic polyester such as a biodegradable aliphatic polyester, may constitute 0-40 % by weight of the composition.
  • the composition constitutes for example 5, 10, 20, or 28, % by weight of the final composition of at least one aliphatic polyester as is described in the experimental part.
  • the present invention concerns a granule comprising thre composition.
  • step (e) extruding said extrudable mixture of step (d) into granules
  • the pressure may be below 300 bar, for instance 100-200 bar or even lower depending on the temperature and the production method of step (f).
  • the temperature may be between e.g. 150 and 200 Q C.
  • the method for preparing an embossed biodegradable and compostable material comprises the steps of;
  • step (e) extruding said extrudable mixture of step (d) into granules
  • the method for preparing an embossed biodegradable and compostable material, where calcium carbonate is omitted comprises the steps of;
  • step (e) extruding said extrudable mixture of step (d) into granules
  • dolomite and/or calcium carbonate will not influence the decaying process but will act as soil improvement agent out on the fields as it will neutralize the pH, which is favorable for soil.
  • the dolomite and/or calcium carbonate will for instance provide the soil with growth factors such as calcium and magnesium and other important minerals.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

La présente invention concerne une composition biodégradable et compostable comprenant A une composition biodégradable et compostable comprenant : (i) 0 à 40 % en poids de la composition finale d'au moins un polyester aromatique biodégradable et/ou décomposable ; (ii) 0 à 15 % en poids de la composition finale de particules de dolomite et/ou de carbonate de calcium ayant une surface polie ; (iii) 2 à 15 % en poids de la composition finale de source d'amidon d'origine végétale ; (iv) 1 à 5 % en poids de la composition finale d'au moins une huile d'origine végétale ; (v) 10 à 20 % en poids de la composition finale d'un additif choisi parmi les silicates de magnésium hydratés ; (vi) 0 à 40 % en poids de la composition finale d'au moins un polyester aliphatique ; (vii) 30 à 55 % en poids de la composition finale de fibre de papier ; et (viii) 0 à 2 % en poids de la composition finale de silice. La présente invention concerne en outre un procédé pour la préparation d'un matériau biodégradable et compostable, éventuellement d'un matériau biodégradable et compostable gaufré.
PCT/EP2021/064817 2020-06-04 2021-06-02 Composition et matériau biodégradables et compostables WO2021245144A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21729898.3A EP4161998A1 (fr) 2020-06-04 2021-06-02 Composition et matériau biodégradables et compostables

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP20178306.5A EP3919568A1 (fr) 2020-06-04 2020-06-04 Composition biodégradable et compostable
EP20178306.5 2020-06-04
EP20200366.1A EP3981838A1 (fr) 2020-10-06 2020-10-06 Matériau biodégradable et compostable gaufré
EP20200366.1 2020-10-06

Publications (1)

Publication Number Publication Date
WO2021245144A1 true WO2021245144A1 (fr) 2021-12-09

Family

ID=76269746

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/064817 WO2021245144A1 (fr) 2020-06-04 2021-06-02 Composition et matériau biodégradables et compostables

Country Status (2)

Country Link
EP (1) EP4161998A1 (fr)
WO (1) WO2021245144A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008090195A2 (fr) * 2007-01-26 2008-07-31 Obtusa Investimentos E Gestao Limidada Compositions à base d'amidon et utilisation relative et procédé d'obtention
EP3260495A1 (fr) 2016-03-07 2017-12-27 Yang, Hongmei Composition de polyester biodégradable
CN109777048A (zh) * 2018-10-12 2019-05-21 广东华腾生物有限公司 一种用于牙刷手柄的生物质复合材料及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008090195A2 (fr) * 2007-01-26 2008-07-31 Obtusa Investimentos E Gestao Limidada Compositions à base d'amidon et utilisation relative et procédé d'obtention
EP3260495A1 (fr) 2016-03-07 2017-12-27 Yang, Hongmei Composition de polyester biodégradable
CN109777048A (zh) * 2018-10-12 2019-05-21 广东华腾生物有限公司 一种用于牙刷手柄的生物质复合材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 201963, Derwent World Patents Index; AN 2019-489518, XP002800509 *

Also Published As

Publication number Publication date
EP4161998A1 (fr) 2023-04-12

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