DE10350943B4 - Composite with natural fibers and process for its preparation - Google Patents
Composite with natural fibers and process for its preparation Download PDFInfo
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- DE10350943B4 DE10350943B4 DE10350943.7A DE10350943A DE10350943B4 DE 10350943 B4 DE10350943 B4 DE 10350943B4 DE 10350943 A DE10350943 A DE 10350943A DE 10350943 B4 DE10350943 B4 DE 10350943B4
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/28—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2363/00—Epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2375/00—Polyureas; Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Textiler Verbundwerkstoff aus Naturfasern für Pressformbauteile im Innenraum von Kraftfahrzeugen, dadurch gekennzeichnet, dass der textile Verbundwerkstoff eine Gestricklage (2), und zwei Faservlieslagen (1',3') jeweils aus Naturfasern, die als Sandwich-Struktur aufgebaut sind und eine thermoplastische oder duroplastische Matrix enthält, wobei eine Gestricklage (2) zwischen zwei Faservlieslagen (1',3') gelegt ist und die Gestricklage (2) und die zwei Faservlieslagen (1,3) mit einer thermoplastischen oder duroplastischen Matrix in Kontakt gebracht worden ist und die Sandwich-Struktur ein Vernadelungsverfahren durchlaufen hat und
(a) die vernadelte Sandwich-Struktur durch Sprüh- oder Walzenauftrag mit duroplastischem Material benetzt wurde oder
(b) der Gestricklage und/oder den Faservlieslagen thermoplastische Fasern beigegeben worden sind
und die vernadelte Sandwich-Struktur beidseitig mittels Kontaktwärme aufgewärmt wurde, wobei das Fadenmaterial der Gestricklage (2) Flachs-, Jute-, Sisal- und/oder Kenaffasern enthält, und
die Faservlieslagen (1', 3') Kenaf-, Sisal-, Jute- oder Flachsfasern enthalten.
Textile composite material made of natural fibers for compression molding components in the interior of motor vehicles, characterized in that the textile composite material knitted layer (2), and two nonwoven fabric layers (1 ', 3') each of natural fibers, which are constructed as a sandwich structure and a thermoplastic or thermosetting Matrix, wherein a fabric layer (2) between two nonwoven fabric layers (1 ', 3') is placed and the fabric layer (2) and the two nonwoven fabric layers (1,3) has been brought into contact with a thermoplastic or thermosetting matrix and the sandwich Structure has undergone a needle punching process and
(A) the needled sandwich structure was wetted by spray or roller application with thermosetting material, or
(B) the knit layer and / or the nonwoven layers thermoplastic fibers have been added
and the needled sandwich structure was heated on both sides by means of contact heat, wherein the thread material of the fabric layer (2) contains flax, jute, sisal and / or kenaf fibers, and
the nonwoven fabric layers (1 ', 3') contain kenaf, sisal, jute or flax fibers.
Description
Gegenstand der Erfindung ist ein textiler Verbundwerkstoff aus Naturfasern für Pressformbauteile im Innenraum von Kraftfahrzeugen sowie ein Verfahren zu seiner Herstellung.The invention relates to a textile composite material made of natural fibers for mold components in the interior of motor vehicles and a method for its production.
Im Automobilbau finden derzeit vielfach faserverstärkte Verbundwerkstoffe Verwendung.In the automotive industry are currently many fiber-reinforced composite materials use.
- a) eine mittige Schicht (c) mit einer durchgehenden Kunststoff-Faserarmierung aus Polyester-, Polyamid-,Polyethylen-, Polypropylen-, Polyurethan-, Methacrylat-,und/oder Aramid-Fasern in Form von Geweben, Gelegen, Vliesen, Filz- und/oder Gestrick,
- b) mindestens zwei jeweils auf der Ober- und Unterseite der mittigen Schicht (c) angeordneten Tragschichten (b und d)mit einer Carbon-Faserarmierung.
- a) a central layer (c) having a continuous plastic fiber reinforcement of polyester, polyamide, polyethylene, polypropylene, polyurethane, methacrylate, and / or aramid fibers in the form of woven, laid, nonwoven, felted and / or knitted fabric,
- b) at least two each on the top and bottom of the central layer (c) arranged support layers (b and d) with a carbon fiber reinforcement.
Grundsätzlich ist bekannt, als Grundmaterial für Formbauteile im Innenraum von Kraftfahrzeugen Faserverbundwerkstoffe (Flexiform®, Empeflex® oder Fibropur®) einzusetzen.Basically, it is known as the base material for molded components in the interior of motor vehicles fiber composites (Flexiform ®, ® or Empeflex Fibropur ®) use.
Entsprechend der gewünschten Verformung und Weiterverarbeitung ist es mit den heutigen textilen Verbundwerkstoffen jedoch notwendig, bei erhöhten Ansprüchen, mehr Fasermaterial und duro- bzw. thermoplastische Matrix einzusetzen. However, according to the desired deformation and further processing, it is necessary with today's textile composite materials to use more fiber material and duroplastic or thermoplastic matrix in the case of increased demands.
Der vorliegenden Erfindung liegt das Problem zugrunde, eine Erhöhung des Formbauteilgewichtes zu vermeiden und gleichzeitig die spezifischen Eigenschaften des Verbundwerkstoffes zu erhalten.The present invention is based on the problem of avoiding an increase in the mold component weight while maintaining the specific properties of the composite material.
Dieses Problem wird gelöst durch einen textilen Verbundwerkstoff aus Naturfasern für Pressformbauteile im Innenraum von Kraftfahrzeugen gemäß Anspruch 1.This problem is solved by a textile composite material made of natural fibers for compression molding components in the interior of motor vehicles according to
Der mit der Erfindung erzielte Vorteil besteht darin, bei komplizierten räumlichen Verformungen mit dem gleichen oder verringerten Bauteilgewicht und bei einfacheren Verformungen mit geringerem Materialeinsatz arbeiten zu können.The advantage achieved with the invention is to be able to work with complicated spatial deformations with the same or reduced component weight and simpler deformations with less material use.
Ein weiterer wesentlicher Vorteil der vorliegenden Erfindung besteht darin, dass beim Verformen zur Herstellung eines Pressformteils dieses bedingt durch die Gestricklage besser im Form-Werkzeug gleitet und die Gefahr der Faltenbildung bei starken Verformungen verringert wird. Darüber hinaus tritt beim Hinterschäumen kein Schaum durch den Verbundwerkstoff.Another significant advantage of the present invention is that when deformed for the production of a press molded part, this slides better in the mold tool due to the knitted fabric and the risk of wrinkling is reduced in the case of severe deformations. In addition, foam does not foam through the composite during backfoaming.
Zudem ist durch die vorliegende Erfindung gewährleistet, dass Tragfähigkeit, Elastizität sowie Bruchverhalten den Anforderungen an Pressformteile im Innenraum von Kraftfahrzeugen genügen.In addition, it is ensured by the present invention that load capacity, elasticity and fracture behavior meet the requirements of moldings in the interior of motor vehicles.
In der
In der
In der
In der
Dementsprechend ist es im Sinne der vorliegenden Erfindung, wenn eine Gestricklage zwischen zwei Faservlieslagen gelegt ist. Somit entsteht aus den Faservlies- und Gestricklagen eine Sandwichstruktur.Accordingly, it is within the meaning of the present invention, when a knitted fabric layer is placed between two nonwoven fabric layers. This creates a sandwich structure from the nonwoven and knit layers.
Im Sinne der vorliegenden Erfindung enthält das Naturfasermaterial der Gestricklage Flachs-, Jute-, Sisal- und/oder Kenaffasern.For the purposes of the present invention, the natural fiber material of the knitted fabric contains flax, jute, sisal and / or kenaf fibers.
Besonders bevorzugt besteht das Gestrick aus verschiedenen Bindungen, insbesondere Rechts/Links- oder Rechts/Rechts-Bindungen.Particularly preferably, the knitted fabric consists of various bindings, in particular right / left or right / right bindings.
In gleicher Weise wie die Gestricklage enthält auch die Faservlieslage Kenaf-, Sisal-, Jute- oder Flachsfasern. Hierbei ist es jedoch nicht zwingend erforderlich, jedoch bevorzugt, wenn die Faservlieslage und die Gestricklage aus dem gleicher Naturfasermaterial besteht.In the same way as the knitted fabric, the nonwoven fabric also contains kenaf, sisal, jute or flax fibers. In this case, however, it is not absolutely necessary, but preferred if the fiber fleece layer and the knit layer consists of the same natural fiber material.
Die Feinheit des Fadens der Stricklage sollte im Sinne der vorliegenden Erfindung bis zu 15 Nm betragen.The fineness of the thread of the knitting should be within the meaning of the present invention up to 15 Nm.
Im Sinne der vorliegenden Erfindung werden vorzugsweise Faservliese eingesetzt, die zur Verdichtung geeignet sind. Dementsprechend weisen die Faservliese eine gewisse Porosität auf.For the purposes of the present invention, fiber webs are preferably used which are suitable for compaction. Accordingly, the nonwoven fabrics have a certain porosity.
Als thermoplastische Matrix im Sinne der vorliegenden Erfindung werden vorzugsweise Polypropylenfasern eingesetzt, während als Material für die duroplastische Matrix, vorzugsweise ein Material auf der Basis von Epoxid- und/oder Polyurethanharzen eingesetzt werden.For the purposes of the present invention, polypropylene fibers are preferably used as the thermoplastic matrix, while as material for the thermosetting matrix, preferably a material based on epoxy and / or polyurethane resins are used.
Eine weitere Ausführungsform der vorliegenden Erfindung betrifft ein Verfahren zur Herstellung der oben definierten Verbundwerkstoffe gemäß Anspruch 7. Erfindungsgemäß legt man eine Gestricklage zwischen zwei Faservlieslagen. Insbesondere durch diese Verfahrensweise baut eine Sandwichstruktur auf, die beispielsweise im nächsten Verfahrensschritt der Vernadelung unterworfen wird.A further embodiment of the present invention relates to a method for producing the above-defined composite materials according to claim 7. According to the invention, a knit layer is laid between two nonwoven fabric layers. In particular, by this procedure builds up a sandwich structure, which is subjected, for example, in the next process step of needling.
Der Faden der Gestricklage kann auf die verschiedensten Weise vorbereitet werden. Beispielsweise ist die Verarbeitung auf Strickmaschinen durch Verzwirnen im Sinne der vorliegenden Erfindung besonders bevorzugt. Auch ist es besonders bevorzugt die Gestricklage auf einer Flach- oder Rundstrickmaschine herzustellen.The thread of the knit layer can be prepared in a variety of ways. For example, processing on knitting machines by twisting is particularly preferred in the sense of the present invention. It is also particularly preferred to produce the knitted fabric on a flat or circular knitting machine.
Beim Einsatz von duroplastischem Material als Verfestigungsmatrix ist es im Sinne der vorliegenden Erfindung, die vernadelte Sandwichstruktur durch Sprüh- oder Walzenauftrag mit dem duroplastischen Material, beispielsweise einem Epoxidharz oder einem Polyurethanharz zu benetzen. Alternativ dazu ist es im Sinne der vorliegenden Erfindung besonders bevorzugt, die Gestricklage und/oder die Faservlieslage mit thermoplastischen Fasern insbesondere Polypropylenfasern zu versetzen. Beim Einsatz von thermoplastischen Fasern aber auch beim Einsatz von duroplastischem Material ist es im Sinne der vorliegenden Erfindung besonders bevorzugt, die vernadelte Sandwichstruktur beidseitig mittels Kontaktwärme aufzuwärmen. Hierzu wird das benetzte oder mit Polypropylenfasern versetzte Sandwich in eine ggf. beheizte Werkzeugform eingelegt und zum Formbauteil verpresst. Alternativ ist es darüber hinaus auch möglich, die erwärmte Sandwichstruktur in eine gekühlte Werkzeugform einzulegen und zum Bauteil zu verpressen.When using thermosetting material as solidification matrix, it is within the meaning of the present invention to wet the needled sandwich structure by spray or roller application with the thermosetting material, such as an epoxy resin or a polyurethane resin. Alternatively, for the purposes of the present invention, it is particularly preferred to offset the knit layer and / or the nonwoven fabric layer with thermoplastic fibers, in particular polypropylene fibers. When using thermoplastic fibers but also when using thermoset material, it is particularly preferred for the purposes of the present invention to heat the needled sandwich structure on both sides by means of contact heat. For this purpose, the wetted or mixed with polypropylene fibers sandwich is placed in a possibly heated mold and pressed to the mold component. Alternatively, it is also possible to insert the heated sandwich structure in a cooled mold and to press the component.
Ein Ausführungsbeispiel der Erfindung wird im Folgenden näher beschrieben.An embodiment of the invention will be described in more detail below.
Ausführungsbeispiel:Embodiment:
Der textile Verbundwerkstoff aus Naturfasern wurde wie folgt aufgebaut: Das Nadelvlies bestand aus 2 Lagen Naturfaservlies (Kenaf- oder Flachsfasern) mit je Minimumflächengewicht 350 g/m2 zwischen die eine Lage Gestrickmaterial eingelegt wurde. Diese Sandwichstruktur wurde gemeinsam vernadelt.The textile composite material made of natural fibers was constructed as follows: The needle felt consisted of 2 layers of natural fiber fleece (kenaf or flax fibers) with a minimum surface weight of 350 g / m 2 between which one layer of knit material was inserted. This sandwich structure was needled together.
Das Gestrick bestand aus Flachsgarn (Nm 8-15) mit RR-Bindung. Das Flachsgarn wurde auf Rundstrickmaschinen verstrickt und als Rollenware aufgelegt. Die beiden Faservlieslagen wurden durch einen mechanischen Vliesherstellungsprozess (Krempeltechnologie) erzeugt. Nach der Krempel wurden aus den 2 Florlagen mit jeweils zwei übereinander angeordneten Legern die beiden Faservlieslagen erzeugt. Die Rollenware Gestrick wurde zwischen den 2 Legern zugeführt und in der Nadelmaschine gemeinsam vernadelt. Im Anschluss wurde die vernadelte Matte mit einem duroplastischen Material (Epoxid-, oder Polyurethanharz) besprüht und in einer Presse zum Formbauteil verformt.The knit consisted of flax yarn (Nm 8-15) with RR binding. The flax yarn was knitted on circular knitting machines and placed on rolls. The two nonwoven layers were produced by a mechanical nonwoven manufacturing process (carding technology). After the carding, the two nonwoven layers were produced from the two pile layers, each with two superposed layers. The knitted fabric was fed between the 2 layers and needled together in the needle machine. Subsequently, the needled mat was sprayed with a thermosetting material (epoxy or polyurethane resin) and deformed in a press to form the molded part.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10350943.7A DE10350943B4 (en) | 2002-11-02 | 2003-10-30 | Composite with natural fibers and process for its preparation |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10251079 | 2002-11-02 | ||
| DE10251079.2 | 2002-11-02 | ||
| DE10350943.7A DE10350943B4 (en) | 2002-11-02 | 2003-10-30 | Composite with natural fibers and process for its preparation |
Publications (2)
| Publication Number | Publication Date |
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| DE10350943A1 DE10350943A1 (en) | 2004-05-13 |
| DE10350943B4 true DE10350943B4 (en) | 2019-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| DE10350943.7A Expired - Lifetime DE10350943B4 (en) | 2002-11-02 | 2003-10-30 | Composite with natural fibers and process for its preparation |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3934555A1 (en) | 1989-10-17 | 1991-04-18 | Audi Ag | Rigid for laminate for coachwork parts - has laminar construction reinforced with core of polymer fibres and multilayer skins of carbon fibre, all impregnated with epoxy] resin |
| DE4139226A1 (en) | 1991-08-22 | 1993-03-11 | Pelz Ernst Empe Werke | FIBER COMPOSITE MATERIAL ON THE BASIS OF NATURAL FIBER PLANTS AND A METHOD FOR THE CONTINUOUS PRODUCTION AND FURTHER PROCESSING OF COMPRESSED PARTS |
| DE29515476U1 (en) | 1995-09-28 | 1995-12-21 | Moeller Plast Gmbh | Composite component, in particular composite trim part |
| DE19647671A1 (en) | 1996-11-19 | 1998-05-28 | Deutsch Zentr Luft & Raumfahrt | Fibre reinforced composite material useful for production of press moulded structural elements |
| DE19706839A1 (en) | 1997-02-21 | 1998-08-27 | Moeller Plast Gmbh | Multi-layer composite body |
| DE69225017T2 (en) | 1991-04-03 | 1998-10-15 | Nitto Boseki Co Ltd | Plate-shaped molding material and toe for safety shoes |
| DE19929137A1 (en) | 1999-06-26 | 2000-12-28 | Moeller Plast Gmbh | Building material for acoustic isolation |
| DE10110115A1 (en) | 2001-03-02 | 2002-09-05 | Audi Ag | Sandwich structure material, e.g. for use in vehicles, is produced using textile or non-textile shape retaining carrier layer and fibre fleece cover layer |
-
2003
- 2003-10-30 DE DE10350943.7A patent/DE10350943B4/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3934555A1 (en) | 1989-10-17 | 1991-04-18 | Audi Ag | Rigid for laminate for coachwork parts - has laminar construction reinforced with core of polymer fibres and multilayer skins of carbon fibre, all impregnated with epoxy] resin |
| DE69225017T2 (en) | 1991-04-03 | 1998-10-15 | Nitto Boseki Co Ltd | Plate-shaped molding material and toe for safety shoes |
| DE4139226A1 (en) | 1991-08-22 | 1993-03-11 | Pelz Ernst Empe Werke | FIBER COMPOSITE MATERIAL ON THE BASIS OF NATURAL FIBER PLANTS AND A METHOD FOR THE CONTINUOUS PRODUCTION AND FURTHER PROCESSING OF COMPRESSED PARTS |
| DE29515476U1 (en) | 1995-09-28 | 1995-12-21 | Moeller Plast Gmbh | Composite component, in particular composite trim part |
| DE19647671A1 (en) | 1996-11-19 | 1998-05-28 | Deutsch Zentr Luft & Raumfahrt | Fibre reinforced composite material useful for production of press moulded structural elements |
| DE19706839A1 (en) | 1997-02-21 | 1998-08-27 | Moeller Plast Gmbh | Multi-layer composite body |
| DE19929137A1 (en) | 1999-06-26 | 2000-12-28 | Moeller Plast Gmbh | Building material for acoustic isolation |
| DE10110115A1 (en) | 2001-03-02 | 2002-09-05 | Audi Ag | Sandwich structure material, e.g. for use in vehicles, is produced using textile or non-textile shape retaining carrier layer and fibre fleece cover layer |
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|---|---|
| DE10350943A1 (en) | 2004-05-13 |
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