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1. WO2020115363 - COMPOSTABLE WOOD COMPOSITE MATERIAL FOR THIN-WALLED ARTICLES

Publication Number WO/2020/115363
Publication Date 11.06.2020
International Application No. PCT/FI2019/050863
International Filing Date 02.12.2019
IPC
B65D 1/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS 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
1Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
02Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
C08L 1/14 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose, or cellulose derivatives
08Cellulose derivatives
10Esters of organic acids
14Mixed esters, e.g. cellulose acetate-butyrate
C08L 67/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
04Polyesters derived from hydroxy carboxylic acids, e.g. lactones
C08L 101/16 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101Compositions of unspecified macromolecular compounds
16the macromolecular compounds being biodegradable
CPC
B65D 1/0207
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS 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
1Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
02Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
0207characterised by material, e.g. composition, physical features
C08L 1/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose or cellulose derivatives
08Cellulose derivatives
10Esters of organic acids ; , i.e. acylates
14Mixed esters, e.g. cellulose acetate-butyrate
C08L 101/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101Compositions of unspecified macromolecular compounds
16the macromolecular compounds being biodegradable
C08L 67/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain
04Polyesters derived from hydroxycarboxylic acids, e.g. lactones
Applicants
  • SULAPAC OY [FI]/[FI]
Inventors
  • VÄISÄNEN, Taneli
  • PÄRSSINEN, Antti
Agents
  • LAINE IP OY
Priority Data
2018603302.12.2018FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSTABLE WOOD COMPOSITE MATERIAL FOR THIN-WALLED ARTICLES
(FR) MATÉRIAU COMPOSITE EN BOIS COMPOSTABLE POUR ARTICLES À PAROI MINCE
Abstract
(EN)
A composition comprising a continuous thermoplastic polymer matrix having a melting point greater than 110 °C and, distributed within the matrix, particles of hydrophilic natural fiber material having a sieved size of less than 1.0 mm, the weight ratio of the thermoplastic polymer to the wood particles being from 99:1 to 35:65. An improvement in biodegradability of biopolymers, such as PLA, can be achieved. On the other hand, the addition of wood fibers enhances the material's ability to resist thermal deformation. The present compositions can be used for manufacturing hollow structures, by injection blow molding, of bottles with a wall thickness between 0.1 mm and 5 mm, in particular from 0.3 to 1 mm or continuous extruded products with a wall thickness from0.3mm to 1.5 mm.
(FR)
L'invention concerne une composition comprenant une matrice polymère thermoplastique continue ayant un point de fusion supérieur à 110 °C et, distribuées à l'intérieur de la matrice, des particules de matériau de fibres naturelles hydrophiles ayant une taille tamisée inférieure à 1,0 mm, le rapport pondéral du polymère thermoplastique aux particules de bois étant de 99 : 1 à 35 : 65. Une amélioration de la biodégradabilité de biopolymères, tels que le PLA, peut être obtenue. D'autre part, l'ajout de fibres de bois améliore la capacité du matériau à résister à une déformation thermique. Les présentes compositions peuvent être utilisées pour fabriquer des structures creuses, par moulage par injection-soufflage, de bouteilles ayant une épaisseur de paroi comprise entre 0,1 mm et 5 mm, en particulier de 0,3 à 1 mm ou des produits extrudés continus ayant une épaisseur de paroi de 0,3 mm à 1,5 mm.
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