WO2002000408A3 - Procede de preparation de matieres synthetiques thermoplastiques comprenant un certain pourcentage de fibres naturelles - Google Patents

Procede de preparation de matieres synthetiques thermoplastiques comprenant un certain pourcentage de fibres naturelles Download PDF

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Publication number
WO2002000408A3
WO2002000408A3 PCT/DE2001/002245 DE0102245W WO0200408A3 WO 2002000408 A3 WO2002000408 A3 WO 2002000408A3 DE 0102245 W DE0102245 W DE 0102245W WO 0200408 A3 WO0200408 A3 WO 0200408A3
Authority
WO
WIPO (PCT)
Prior art keywords
fibre
fibres
polymer
production
polymer mixture
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/DE2001/002245
Other languages
German (de)
English (en)
Other versions
WO2002000408A2 (fr
Inventor
Gerhard Pohl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2002000408A2 publication Critical patent/WO2002000408A2/fr
Publication of WO2002000408A3 publication Critical patent/WO2002000408A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B9/14—Making granules characterised by structure or composition fibre-reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fillers or of fibrous materials, e.g. short-fibre reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

La présente invention concerne un procédé permettant la préparation de matières synthétiques thermoplastiques comprenant un certain pourcentage de fibres naturelles, et ayant des propriétés mécaniques améliorées. La présente invention convient notamment à la production de granulés, constitués de matières synthétiques ainsi modifiées, utilisés comme demi-produits pour des produits réalisés par moulage par injection. L'invention a pour objet un procédé permettant aux matières synthétiques d'avoir de bonnes propriétés mécaniques tout en ayant une masse réduite, grâce à leur mélange avec des fibres naturelles notamment des fibres de type libériennes. A cet effet, sont utilisées des fibres naturelles se présentant sous la forme de morceaux de fibres, de pastilles de fibres, de pré-imprégnés de fibres, de granulés de fibres ou de petits morceaux de tissu. Les fibres sont introduites dans un compartiment de mélange, et sont ajoutées à un polymère ou à un mélange polymère dans une extrudeuse dans laquelle le pas de la vis de pétrissage est inférieur de 10 à 50 % à celui des vis de pétrissage utilisées pour le mélange avec des fibres de verre. Lesdites fibres sont introduites à une température supérieure de 1 à 5 °C au point de fusion du polymère ou mélange polymère modifié, le tout étant fondu et mélangé. Après un temps de séjour de 2,0 3,0 minutes à partir du début de l'adjonction des fibres, le mélange fibres-polymère est retiré du dispositif de mélange sous la forme d'un ou de préférence de plusieurs brins. Le procédé de l'invention permet l'adjonction de 4 à 30 % de fibres naturelles au polymère ou mélange polymère modifié, ce pourcentage étant calculé en fonction du produit fini.
PCT/DE2001/002245 2000-06-29 2001-06-16 Procede de preparation de matieres synthetiques thermoplastiques comprenant un certain pourcentage de fibres naturelles Ceased WO2002000408A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10029203A DE10029203A1 (de) 2000-06-29 2000-06-29 Verfahren zur Herstellung thermoplastischer Kunststoffe mit Anteilen nativer Fasern
DE10029203.8 2000-06-29

Publications (2)

Publication Number Publication Date
WO2002000408A2 WO2002000408A2 (fr) 2002-01-03
WO2002000408A3 true WO2002000408A3 (fr) 2002-07-18

Family

ID=7645639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/002245 Ceased WO2002000408A2 (fr) 2000-06-29 2001-06-16 Procede de preparation de matieres synthetiques thermoplastiques comprenant un certain pourcentage de fibres naturelles

Country Status (2)

Country Link
DE (1) DE10029203A1 (fr)
WO (1) WO2002000408A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8419991B2 (en) 2004-09-21 2013-04-16 Cordenka Gmbh & Co. Kg Free-flowing pellets based on cellulose textile fibers and a method for the production thereof
AT509429B1 (de) * 2010-01-20 2016-09-15 Erema Verfahren zur herstellung eines mit längeren fasern gefüllten polymeren materials
FR3082846B1 (fr) * 2018-06-22 2021-09-24 Faurecia Interieur Ind Composition a base de fibres naturelles et de polypropylene homopolymere pulverulent
US12071540B2 (en) * 2021-06-01 2024-08-27 Xerox Corporation Polymer filaments for additive manufacturing having reduced emissions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0165093A1 (fr) * 1984-04-27 1985-12-18 Clextral Procédé de fabrication d'un produit composite constitué d'un mélange de particules cellulosiques et d'un liant thermoplastique
EP0610619A1 (fr) * 1993-02-12 1994-08-17 Andersen Corporation Procédé l'extrusion d'un granulat
US5938994A (en) * 1997-08-29 1999-08-17 Kevin P. Gohr Method for manufacturing of plastic wood-fiber pellets
DE19822051C1 (de) * 1998-05-16 1999-09-23 Thueringisches Inst Textil Dosiervorrichtung für Kurzschnittfasern
DE19835983A1 (de) * 1998-08-08 2000-02-17 Rettenmaier & Soehne Gmbh & Co Verfahren zur Verbesserung der Haftfestigkeit von zu Verstärkungszwecken in thermoplastischen Kunststoff eingebrachten cellulosischen Naturfasern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0165093A1 (fr) * 1984-04-27 1985-12-18 Clextral Procédé de fabrication d'un produit composite constitué d'un mélange de particules cellulosiques et d'un liant thermoplastique
EP0610619A1 (fr) * 1993-02-12 1994-08-17 Andersen Corporation Procédé l'extrusion d'un granulat
US5938994A (en) * 1997-08-29 1999-08-17 Kevin P. Gohr Method for manufacturing of plastic wood-fiber pellets
DE19822051C1 (de) * 1998-05-16 1999-09-23 Thueringisches Inst Textil Dosiervorrichtung für Kurzschnittfasern
DE19835983A1 (de) * 1998-08-08 2000-02-17 Rettenmaier & Soehne Gmbh & Co Verfahren zur Verbesserung der Haftfestigkeit von zu Verstärkungszwecken in thermoplastischen Kunststoff eingebrachten cellulosischen Naturfasern

Also Published As

Publication number Publication date
WO2002000408A2 (fr) 2002-01-03
DE10029203A1 (de) 2002-01-17

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