DE20301741U1 - Fiber reinforced thermoplastic material for hollow profile manufacture includes natural fibers and the profile is foam cored - Google Patents
Fiber reinforced thermoplastic material for hollow profile manufacture includes natural fibers and the profile is foam coredInfo
- Publication number
- DE20301741U1 DE20301741U1 DE20301741U DE20301741U DE20301741U1 DE 20301741 U1 DE20301741 U1 DE 20301741U1 DE 20301741 U DE20301741 U DE 20301741U DE 20301741 U DE20301741 U DE 20301741U DE 20301741 U1 DE20301741 U1 DE 20301741U1
- Authority
- DE
- Germany
- Prior art keywords
- profile
- natural fibers
- foam
- material composite
- composite according
- 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.)
- Expired - Lifetime
Links
- 239000006260 foam Substances 0.000 title claims abstract description 34
- 239000000835 fiber Substances 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title description 7
- 239000012815 thermoplastic material Substances 0.000 title 1
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 7
- 239000002025 wood fiber Substances 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims abstract description 4
- 235000013312 flour Nutrition 0.000 claims abstract 2
- 238000001125 extrusion Methods 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- -1 polypropylene Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 229920001169 thermoplastic Polymers 0.000 claims description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004794 expanded polystyrene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000002318 adhesion promoter Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 239000004604 Blowing Agent Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/28—Moulding or pressing characterised by using extrusion presses
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
- B29C70/026—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers and with one or more layers of pure plastics material, e.g. foam layers
-
- 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
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
'··" ·"··**; :":"*!· 30.November 2002'··" ·"··**; :":"*! November 30, 2002
Gebrauchsmusteranmeljiurjgj KLjpst^offjPrpfil rTiitjSctiaurrtkem Fagerdala DetrtscttlSnd GiTfbKOfirdruf * Utility model anmeljiurjgj KLjpst^offjPrpfil rTiitjSctiaurrtkem Fagerdala DetrtscttlSnd GiTfbKOfirdruf *
Gebrauchsmusteranmeldung: Kunststoff-Profil mit Schaumkern Utility model application: Plastic profile with foam core
Erfinder:Inventor:
Jürgen Bruning, Werther, DeutschlandJürgen Bruning, Werther, Germany
Anmelder:Applicant:
Fagerdala Deutschland GmbH Herrenhöfer Landstr.Fagerdala Germany GmbH Herrenhöfer Landstr.
99885 Ohrdruf99885 Ohrdruf
Anlage:Attachment:
- Kurzzusammenfassung- Short summary
- Beschreibung- Description
- Patentansprüche- Patent claims
- Zeichnung- Drawing
.··..*· ·"»·"» ;"·"!· 30.November 2002.··..*· ·"»·"» ;"·"!· November 30, 2002
GebrauchsmusteranmelÖuriil KJhStsJoffJPrcffil miiScfiaugikem Fagerdala Deutsch*land GmIaK"öfircW* Utility model application filed with the Federal Republic of Germany
Die Erfindung betrifft einen Werkstoffverbund und daraus gefertigte Hohlprofile, dadurch gekennzeichnet, dass diese aus lignocellulosegefüllten Thermoplasten bestehen, die zumindest teilweise mit Partikelschaumstoff gefüllt und/oder ausgeschäumt sind.The invention relates to a material composite and hollow profiles made therefrom, characterized in that they consist of lignocellulose-filled thermoplastics which are at least partially filled and/or foamed with particle foam.
Es ist bekannt, Kunststoffprofile in Form von Vollprofilen oder Hohlprofilen für Anwendungen verschiedenster Art mittels Extrusion- oder Strangpressverfahren herzustellen. In der Regel werden hier Thermoplaste eingesetzt, wie beispielsweise PVC (Polyvinylchlorid), PE (Polyethylen) oder PP (Polypropylen). Zur verbesserten Wärmeisolierung werden Hohlprofile häufig als Mehrkammerprofile ausgebildet oder nachträglich mit wärmedämmenden Materialien gefüllt. Eine Variante ist auch die Herstellung geschäumter Wandungen wie in DE 19731163 beschrieben. Die Herstellung von Hohl-Profilen in Verbindung mit einem Schaumstoffkern wird in DE 3543767 beschrieben, wobei hier das extrudierte Profil in Längsrichtung aufgetrennt wird um ein Ausschäumen zu ermöglichen. Weitere Verfahren zum Einbringen eines Schaumstoffkerns beschreiben DE3328357 und DE 3305677, wobei hier zwei Halbschalen gefertigt mit Schaum gefüllt und anschließend zu einem Hohlprofil verbunden werden.It is known to produce plastic profiles in the form of solid profiles or hollow profiles for a wide variety of applications using extrusion or extrusion molding processes. Thermoplastics are generally used here, such as PVC (polyvinyl chloride), PE (polyethylene) or PP (polypropylene). For improved thermal insulation, hollow profiles are often designed as multi-chamber profiles or subsequently filled with heat-insulating materials. Another variant is the production of foamed walls as described in DE 19731163. The production of hollow profiles in conjunction with a foam core is described in DE 3543767, where the extruded profile is split lengthwise to enable foaming. Other methods for introducing a foam core are described in DE3328357 and DE 3305677, where two half-shells are made, filled with foam and then connected to form a hollow profile.
Auch der Einsatz von Füllstoffen in Verbindung mit Thermoplasten zur Fertigung von Platten und Profilen im Extrusionsverfahren ist Stand der Technik. DE 19542721 beschreibt ein Verfahren zur Herstellung von stranggepressten Formkörpern mit hohem Füllstoffanteil, wobei hier nur gut wärmeleitende synthetische Füllstoffe zum Einsatz kommen. Zur Herstellung von Profilen aus naturfasergefüllten Polymeren wird in DE 199 34 871 eine Ausführung eines Extrusionswerkzeuges zur Formgebung von Polymeren mit ca. 90 % Holzfaseranteil beschrieben.The use of fillers in combination with thermoplastics to produce panels and profiles using the extrusion process is also state of the art. DE 19542721 describes a process for producing extruded molded bodies with a high filler content, whereby only synthetic fillers with good heat conductivity are used. For the production of profiles from natural fiber-filled polymers, DE 199 34 871 describes a design of an extrusion tool for shaping polymers with a wood fiber content of approx. 90%.
Herkömmliche Hohlprofile weisen häufig unzureichende wärme- und schalldämmende Eigenschaften auf. Kostengünstige Hohlprofile aus naturfasergefüllten Polymeren sind bislang hinsichtlich ihrer Isolationseigenschaften nicht optimiert. Profile mit verbesserten Isolationseigenschaften bringen einen hohen Fertigungsaufwand mit sich wie beispielsweise durch nachträgliches Einbringen von Schaumstoffkernen.Conventional hollow profiles often have inadequate heat and sound insulation properties. Cost-effective hollow profiles made of natural fiber-filled polymers have not yet been optimized in terms of their insulation properties. Profiles with improved insulation properties entail a high level of manufacturing effort, for example through the subsequent insertion of foam cores.
Der Erfindung liegt daher die Aufgabe zugrunde, Hohlprofile bereitzustellen, die sich durch gute wärme- und schalldämmende Eigenschaften auszeichnen und in einem kostengünstigen Verfahren herstellbar sind.The invention is therefore based on the object of providing hollow profiles which are characterized by good heat and sound insulating properties and can be produced in a cost-effective process.
Dies wird dadurch gelöst, dass in einem kontinuierlichen Verfahren ein Hohlprofil aus einem lignocellulosegefüllten Thermoplasten hergestellt wird, wobei vorzugsweise Holzfasern als Füllstoff und Polypropylen als Matrix eingesetzt werden und während oder unmittelbar im Anschluss an diesen Prozess zumindest teilweise mit Partikelschaumstoff gefüllt und/oder ausgeschäumt wird.This is achieved by producing a hollow profile from a lignocellulose-filled thermoplastic in a continuous process, preferably using wood fibers as filler and polypropylene as matrix, and at least partially filling and/or foaming with particle foam during or immediately after this process.
Der Partikelschaumstoff erfüllt hierbei die wärme- und schalldämmende Aufgaben. Ferner wird bei einem vollständigen Ausschäumen des Hohlprofils eine form-, kraft- oder stoffschlüssige Verbindung zwischen Schaumkern und Profilwand eingegangen, was zusätzlich zu einer Verbesserung der mechanischen Stabilität führt.The particle foam fulfils the heat and sound insulation tasks. Furthermore, when the hollow profile is completely filled with foam, a form-fitting, force-fitting or material-fitting connection is created between the foam core and the profile wall, which also leads to an improvement in mechanical stability.
Die Verarbeitung der lignocellulosegefüllten Thermoplasten und Formgebung erfolgt vorzugsweise über Extrusions- oder Strangpressverfahren. Hierbei wird ein Thermoplast-Granulat oder -pulver mit 40-98 Gewichtsprozent Lignocellulose und gegebenenfalls Haftvermittlern wie Maleinsäureanhydrit oder Organosilanen gemischt. Über ein Extrusionswerkzeug werden Hohlprofile gefertigt, deren Querschnitt und Oberflächenstruktur durch die Werkzeuggeometrie des Extrusionswerkzeuges vorgegeben wird.The processing of the lignocellulose-filled thermoplastics and shaping is preferably carried out using extrusion or extrusion molding processes. In this process, a thermoplastic granulate or powder is mixed with 40-98 percent by weight of lignocellulose and, if necessary, adhesion promoters such as maleic anhydrite or organosilanes. Hollow profiles are manufactured using an extrusion tool, the cross-section and surface structure of which are determined by the tool geometry of the extrusion tool.
: ::.. : :· I : J ·* ' 30.November2002 GebrauchsmusteranmelflunfeJ Ki8is*tsSoffiProtü mit^cfiaumVern: ::.. : :· I : J ·* ' 30.November2002 Utility model applicationJ Ki8is*tsSoffiProtü with^cfiaumVern
Fagerdala Deutschland GmI)H* 'örVdruf *Fagerdala Germany GmI)H* 'örVdruf *
Im Bereich der Düse oder nachträglich werden Schaumpartikel oder ein mit Treibmittel versetztes Granulat zugegeben. Die Zufuhr dieser Schaumpartikel oder des Granulates kann im Bereich der profilformgebenden Extrusionswerkzeuges über eine Zufuhr im Kern des Profilwerkzeuges erfolgen oder aber direkt im Anschluss an den Extrusionsprozess. Bei einer Schaumpartikelzufuhr im Anschluss an den Extrusionsprozess ist eine längsseitige Öffnung des Profils erforderlich.Foam particles or granules mixed with a blowing agent are added in the area of the nozzle or subsequently. These foam particles or granules can be added in the area of the profile-forming extrusion tool via a feed in the core of the profile tool or directly after the extrusion process. If foam particles are added after the extrusion process, an opening along the length of the profile is required.
Über Wärmezufuhr über das Extrusionswerkzeug und/oder Wärmeübertragung durch das extrudierte Profil wird ein Aufschäumen des mit Treibmittel versetzten Granulates und eine Verschweißung der Schaumpartikel erreicht. Aufgrund der Verdampfung der Restfeuchte der Naturfasern des lignocellulosegefüllten Thermoplasten wird ebenfalls eine Wärmeübertragung sowie eine Expansion der Schaumpartikel erzielt.The supply of heat via the extrusion tool and/or heat transfer through the extruded profile causes the granulate mixed with the blowing agent to foam and the foam particles to fuse. The evaporation of the residual moisture in the natural fibers of the lignocellulose-filled thermoplastic also causes heat transfer and expansion of the foam particles.
Zur Bildung des Schaumkems werden vorzugsweise expandiertes Polystyrol (EPS), expandiertes Polyethylen (EPE) und/oder expandiertes Polypropylen (EPP) eingesetzt. EPS kann in Form von mit Treibmittel versetztem Granulat oder als zumindest teilweise vorgeschäumte Schaumpartikel eingesetzt werden. EPE und/oder EPP wird in Form von Schaumpartikeln eingesetzt. Eine Variante bei EPE und/oder EPP ist der Einsatz komprimierter oder druckbeladener Schaumpartikel. Dies bewirkt eine zusätzliche Expansion der Schaumpartikel durch das verdampfenden Wasser der Lignocellulose.Expanded polystyrene (EPS), expanded polyethylene (EPE) and/or expanded polypropylene (EPP) are preferably used to form the foam core. EPS can be used in the form of granules mixed with a blowing agent or as at least partially pre-foamed foam particles. EPE and/or EPP is used in the form of foam particles. A variant of EPE and/or EPP is the use of compressed or pressure-loaded foam particles. This causes additional expansion of the foam particles due to the evaporating water from the lignocellulose.
Eine Variante ist der Einsatz von Naturfasern mit einem definierten Feuchtigkeitsgehalt um somit die Energiemenge des verdampfenden Wassers auf Grad des Aufschäumens und die Verschweißung der Schaumpartikel abzustimmen.One variant is the use of natural fibers with a defined moisture content in order to adjust the amount of energy of the evaporating water to the degree of foaming and the welding of the foam particles.
Vorteilhaft bei diesem Werkstoffverbund und Verfahren zu dessen Herstellung ist die Möglichkeit Hohlprofile mit hohem Anteil an Naturfasern vorzugsweise Holzfasern herzustellen, die zum einen preisgünstiger als reine Holzbauteile oder auch reine Kunststoffbauteile sind und sich durch eine gute Formbeständigkeit, Witterungsbeständigkeit, geringe Wasseraufnahme und lange Lebensdauer auszeichnen. Des weiteren ist durch die Kombination mit einem Schaumkern eine verbesserte Wärme- und Geräuschisolation gegeben. Über die Kombination der lignocellulosegefüllten Thermoplaste mit einer Schaumstofffüllung im Extrusionsprozess wird zudem eine kostengünstige, prozesssichere Fertigung gewährleistet.The advantage of this material composite and the process for its production is the possibility of producing hollow profiles with a high proportion of natural fibers, preferably wood fibers, which are cheaper than pure wood components or pure plastic components and are characterized by good dimensional stability, weather resistance, low water absorption and a long service life. Furthermore, the combination with a foam core provides improved heat and noise insulation. The combination of the lignocellulose-filled thermoplastics with a foam filling in the extrusion process also ensures cost-effective, process-reliable production.
: II., ; I* ; Il .* 30.November 2002 Gebrauchsmusteranmeliiurfe» KuVistabflSPraihl miiSciiaugikern Fagerdala Deutschland Gmbl-T/Orirdruf *: II., ; I* ; Il .* 30.November 2002 Utility model application» KuVistabflSPraihl mitSciiaugikern Fagerdala Deutschland GmbH/T/Order *
AusführungsbeispielExample
Ein Gemisch (1) aus Polypropylen-Granulat und 40-98 Gewichtsprozent Holzfasern als Füllstoff wird einer Extrusionseinrichtung (2) zugeführt. Am Extrusionswerkzeug (3) des Extruders (2) werden mit Treibmittel versetztes Granulat und/oder Schaumpartikel (4) beispielsweise in Form von EPP-Partikel zugeführt. Die Schaumpartikel (4) werden über den Kern (5) des Extrusionswerkzeuges in das Hohlprofil (6) befördert und bilden dort aufgrund der Wärmezufuhr über das Extrusionswerkzeug und den aus dem im Polypropylen-Holzfaser-Hohlprofil (6) austretenden Wasserdampf einen Schaumkern (7) im Hohlprofil (6) aus. Durch die Düsengeometrie des Extrusionswerkzeug (3) wird letztlich die Querschnittsgeometrie des extrudierten Profils (6) bestehend aus holzgefülltem Polypropylen und einem Schaumkern (7) erzielt.A mixture (1) of polypropylene granulate and 40-98 percent by weight of wood fibers as a filler is fed to an extrusion device (2). Granulate mixed with blowing agent and/or foam particles (4), for example in the form of EPP particles, are fed to the extrusion tool (3) of the extruder (2). The foam particles (4) are conveyed into the hollow profile (6) via the core (5) of the extrusion tool and there form a foam core (7) in the hollow profile (6) due to the heat supply via the extrusion tool and the water vapor emerging from the polypropylene-wood fiber hollow profile (6). The nozzle geometry of the extrusion tool (3) ultimately achieves the cross-sectional geometry of the extruded profile (6) consisting of wood-filled polypropylene and a foam core (7).
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20301741U DE20301741U1 (en) | 2003-02-04 | 2003-02-04 | Fiber reinforced thermoplastic material for hollow profile manufacture includes natural fibers and the profile is foam cored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20301741U DE20301741U1 (en) | 2003-02-04 | 2003-02-04 | Fiber reinforced thermoplastic material for hollow profile manufacture includes natural fibers and the profile is foam cored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20301741U1 true DE20301741U1 (en) | 2003-04-24 |
Family
ID=7979718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20301741U Expired - Lifetime DE20301741U1 (en) | 2003-02-04 | 2003-02-04 | Fiber reinforced thermoplastic material for hollow profile manufacture includes natural fibers and the profile is foam cored |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20301741U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2554351A1 (en) * | 2011-08-02 | 2013-02-06 | Oroplastic, Naamloze Vennootschap | Method and a device for manufacturing insulation panels |
| CN1530493B (en) | 2003-03-12 | 2014-03-05 | Lg化学株式会社 | Synthetic wood product and method of making same by multilayer coextrusion |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3543767A1 (en) | 1984-12-11 | 1986-07-10 | Rudolf 4446 Hörstel Bußmann | Process and device for the continuous production of profiles filled with plastic foam |
| DE3627997A1 (en) | 1986-08-21 | 1988-03-03 | Lo Kun Nan | COMPOSITE RACKET FRAME |
| DE69312314T2 (en) | 1992-11-13 | 1997-10-30 | Univ Toronto | COMPOSITE MATERIAL FROM ORIENTED THERMOPLASTIC AND PARTICULATE MATERIALS |
| DE19731163A1 (en) | 1997-07-21 | 1999-01-28 | Krueger Ernst Dr | Thermally insulated plastics window frame |
| DE10032860A1 (en) | 2000-07-06 | 2002-01-17 | Romonta Beteiligungsgmbh | Lightweight scaffolding board comprises a thermoplastic honeycomb core with a supporting layer of fibre composite mat, an adhesive coating for using the board, fixing elements and stacking elements |
| DE20213530U1 (en) | 2002-08-17 | 2002-12-19 | Fagerdala Deutschland Gmbh | Products made of thermoplastic filled with lignocellulose fibers |
-
2003
- 2003-02-04 DE DE20301741U patent/DE20301741U1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3543767A1 (en) | 1984-12-11 | 1986-07-10 | Rudolf 4446 Hörstel Bußmann | Process and device for the continuous production of profiles filled with plastic foam |
| DE3627997A1 (en) | 1986-08-21 | 1988-03-03 | Lo Kun Nan | COMPOSITE RACKET FRAME |
| DE69312314T2 (en) | 1992-11-13 | 1997-10-30 | Univ Toronto | COMPOSITE MATERIAL FROM ORIENTED THERMOPLASTIC AND PARTICULATE MATERIALS |
| DE19731163A1 (en) | 1997-07-21 | 1999-01-28 | Krueger Ernst Dr | Thermally insulated plastics window frame |
| DE10032860A1 (en) | 2000-07-06 | 2002-01-17 | Romonta Beteiligungsgmbh | Lightweight scaffolding board comprises a thermoplastic honeycomb core with a supporting layer of fibre composite mat, an adhesive coating for using the board, fixing elements and stacking elements |
| DE20213530U1 (en) | 2002-08-17 | 2002-12-19 | Fagerdala Deutschland Gmbh | Products made of thermoplastic filled with lignocellulose fibers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530493B (en) | 2003-03-12 | 2014-03-05 | Lg化学株式会社 | Synthetic wood product and method of making same by multilayer coextrusion |
| EP2554351A1 (en) * | 2011-08-02 | 2013-02-06 | Oroplastic, Naamloze Vennootschap | Method and a device for manufacturing insulation panels |
| BE1020128A3 (en) * | 2011-08-02 | 2013-05-07 | Oroplastic Nv | METHOD AND A DEVICE FOR MANUFACTURING INSULATION PANELS. |
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