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DE2545700A1 - Self-supporting padded sandwich type mouldings e.g. car roof linings - comprising a fibre reinforced plastics lamina and a foamed coating - Google Patents

Self-supporting padded sandwich type mouldings e.g. car roof linings - comprising a fibre reinforced plastics lamina and a foamed coating

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Publication number
DE2545700A1
DE2545700A1 DE19752545700 DE2545700A DE2545700A1 DE 2545700 A1 DE2545700 A1 DE 2545700A1 DE 19752545700 DE19752545700 DE 19752545700 DE 2545700 A DE2545700 A DE 2545700A DE 2545700 A1 DE2545700 A1 DE 2545700A1
Authority
DE
Germany
Prior art keywords
self
supporting
load
fibre reinforced
reinforced plastics
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.)
Withdrawn
Application number
DE19752545700
Other languages
German (de)
Inventor
Alfred Dipl Ing Pirker
Axel Wagenknecht
Martin Dipl Ing Welz
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DE19752545700 priority Critical patent/DE2545700A1/en
Publication of DE2545700A1 publication Critical patent/DE2545700A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B5/18—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 features of a layer of foamed 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • 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
    • B32B5/245—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 being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0212—Roof or head liners
    • B60R13/0225—Roof or head liners self supporting head liners
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2605/08—Cars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Mfr. of a self-supporting, padded moulding with a load-bearing lamina of thermoplastics material, reinforced with long fibres, and a foamed, plastics coating comprises press-moulding both the load-bearing lamina and the soft-foam coating and laminating them together, in one single operation. Mouldings are used as light-wt. structural elements, e.g. in mfr. of motorcar roof linings. Good noise and heat insulating characteristics are obtd. The single-step process is economical. Bonding-together of the laminae is normally achieved without recourse to adhesives.

Description

Verfabren zur Herstellung von selbsttragenden, gepolstertenProcedure for the manufacture of self-supporting, upholstered

Formkörpern Die Erfindung beziebt sicb auf ein Verfahren zur Herstellung von selbsttragenden, gepolsterten Formkörpern mit einer tragenden Schicht aus mit langen Fasern verstärkten tbermoplastisoben Kunststoffen und einer Auflage aus geschäumten Kunststoffen.Moldings The invention relates to a method of production of self-supporting, padded moldings with a supporting layer long fibers reinforced tbermoplastisoben plastics and a layer of foamed Plastics.

Großflächige, leichte Bauteile hoher Biegesteifigkeit und Beulsioberbeit werden im "Sandwich-Verfahren" hergestellt.Large, lightweight components with high flexural rigidity and denting are manufactured using the "sandwich process".

Dabei werden entweder auf einen sehr leichten Kern, der aus Hartschaum bestebt, steife, hochfeste Decklage aus glastaserverstärktem Polyesterbarz mit einem geeigneten Klebstoff aufgeklebt oder es werden die Decklagen in einer Form fixiert und der Zwischenraum ausgeschäumt0 Beide Verfahren sind arbeits- und zeitaufwendig, vor allem, wenn gekrümmte Formteile, wie Dachkuppeln, Bootsschalen, Karosserieteile oder Innenauakleidungen eines PKW-#aches hergestellt werden sollen0 Die Anforderungen, die beispielsweise an einen Formkörper für einen PKW-I)achbimmel gestellt werden, sind: Isolation gegen Sonneneinstrahlung und Kälte, Schalldämmung, Unfallsicberbeit und Reparaturfreundlicbkeit, Zusätzlich muß die Wirtsobaftlicbkeit der Herstellung und Montage gegeben sein und die Freiheit in der Gestaltung darf nicht eingeschränkt9 sondern muß erweitert werden können, Es wurde nun gefunden, daß man selbsttragende, gepolsterte Formkörper der eingangs bezeichneten Art herstellen kann, die die angeftibrten Anforderungen in hohem Maße erfüllen, indem die tragende Schicht und die Auflage aus einem Weichschaum in einem Preßvorgang verformt und miteinander verbaftet werden. Gegebenenfalls kann eine Dekorschicht im selben Preßvorgang auf den Formkörper mit aufgebracht werden, In einer besonders vorteilhaften Ausführungsform des erfindungsgemäßen Verfahrens wird der Preßvorgang durch Vakuum untBrstütztO Auf diese Weise lassen sich Verbunde aus 2 oder mehr Schichten, z.B. aus einer tragenden Schicht und einer Weichschaumauflage mit oder ohne Dekorschicht in einem Arbeitsgang herstellen.Either on a very light core made of rigid foam Best, stiff, high-strength top layer made of glass fiber reinforced polyester resin with a A suitable adhesive is stuck on or the cover layers are fixed in a mold and the space in between is filled with foam0 Both processes are labor-intensive and time-consuming, especially when curved moldings such as roof domes, boat shells, body panels or interior lining of a car should be manufactured 0 The requirements, which are placed, for example, on a molded body for a car I) achbimmel, are: insulation against solar radiation and cold, sound insulation, accident prevention and repair friendliness, In addition, the host liability of manufacture and assembly must be given and the freedom of design must not be restricted9 but must be able to be expanded. It has now been found that self-supporting, can produce upholstered moldings of the type mentioned, which the attached Meet requirements to a high degree by adding the load-bearing layer and the overlay deformed from a flexible foam in a pressing process and bonded to one another. If necessary, a decorative layer can be applied to the molded body in the same pressing process be applied, In a particularly advantageous embodiment In the method according to the invention, the pressing process is assisted by vacuum In this way, composites made up of 2 or more layers, e.g. a load-bearing Layer and a soft foam overlay with or without a decorative layer in one operation produce.

Ein Zusatz von Klebstoff ist im allgemeinen nicht erforderlich. Der Grad der Verbindung zwischen den einzelnen Schichten kann verschiedentlich Jedoch auch, insbesondere bei artfremden Schichtmaterialien, durch entsprechende Haftvermittler, wie Schmelzkleber, verbessert werden0 Die tragende Schicbt kann aus allen thermoplastisch verformbaren Materialien bestehen, z030 aus Olefinpolymerisaten, wie Polyäthylen oder Polypropylen, Styrolpolymerisaten, wie Polystyrols Copolymerisaten des Styrols mit Acrylnitril, Maleinsäureanhydrid, Methylmethacrylat oder o-Methylstyrol9 oder kautschukmodifizierten Styrolpolymerisaten, Chlor enthaltende Polymerisate wie Polyvinylchlorid, #olyvinylidencblorid oder cblorierte Polyolefine, Polyamide, Polycarbonat, Polymethylmethacrylat, sowie Mischungen dieser Polymerisqte.An addition of adhesive is generally not necessary. Of the However, the degree of connection between the individual layers can vary also, especially in the case of alien layer materials, by means of appropriate adhesion promoters, such as hot-melt adhesive, to be improved0 The load-bearing layer can be made of any thermoplastic Deformable materials consist, z030 of olefin polymers such as polyethylene or polypropylene, styrene polymers, such as polystyrene copolymers of styrene with acrylonitrile, maleic anhydride, methyl methacrylate or o-methylstyrene9 or rubber-modified styrene polymers, chlorine-containing polymers such as polyvinyl chloride, #olyvinylidene chloride or chlorinated polyolefins, polyamides, polycarbonate, polymethyl methacrylate, and mixtures of these polymers.

Die thermoplastischen Kunststoffe sollen faserverstärkt sein, Vorzugsweise verwendet inan dazu Langfasern, Matten, Filze oder Gewebe aus Glas, Koblenstoff, Steinwolle oder Asbest.The thermoplastics should be fiber-reinforced, preferably uses long fibers, mats, felts or fabrics made of glass, plastic, Rock wool or asbestos.

Es sind auch textile Fasern wie Wolle, Baumwolle oder synthetische Fasern geeignet0 Bevorzugt sind langfaserige Substanzen mit Faserlängen von 10 mm oder mehr. Der Anteil an faserigen Substanzen in der tragenden Schicht soll vorzugsweise 10 bis 50 Gewiohtsprozent betragen, Die Glasfasern können in üblicher Weise vorbehandelt sein0 Außer Fasern kann die tragende Schicht auch noch Zusatzstoffe wie Farbstoffe, Pigmente, Füllstoffe, Flammschutzmittel, Antistatika9 Gleitmittel und Stabilisatoren enthalten, Die Herstellung der tragenden Schicht geschieht auf bekannte Weise durch Imprägnieren, Beschichten oder Tränken der Fasern mit geschmolzenen Thermoplasten oder einer Thermoplastdispersion. Vorteilhaft kann man z.B. eine Bahn aus Glasiasermatten durch Extrusion aus einer BreitschlitzdUse mit der Thermoplastschmelze kontinuierlich beschichten.There are also textile fibers such as wool, cotton or synthetic ones Fibers suitable0 Long-fiber substances with fiber lengths of 10 mm are preferred or more. The proportion of fibrous substances in the load-bearing layer should be preferred 10 to 50 percent by weight. The glass fibers can be pretreated in the usual way 0 In addition to fibers, the load-bearing layer can also contain additives such as dyes, Pigments, fillers, flame retardants, antistatic agents9, lubricants and stabilizers The production of the load-bearing layer is carried out in a known manner Impregnation, coating or soaking of the fibers with melted Thermoplastics or a thermoplastic dispersion. You can use a train, for example from glass slide mats by extrusion from a slot nozzle with the thermoplastic melt continuously coat.

Die Auflage besteht aus einem geschäumten Kunststoff. Vorzugsweise verwendet man thermoplastische Weichsohäume, z.B. auf Basis von Polyäthylen oder Polyvinylchlorid. Auf der Weichschaumauflage kann gegebenenfalls im selben Preßvorgang eine Dekorsobicht z.3. aus bedruckter oder unbedruckter Folie oder aus einem Vlies aufgebracht werden0 Die Dicke der tragenden Schicht und der Auflage kann je nach Anwendungsgebiet in weiten Grenzen schwanken; vorzugsweise soll die tragende Schicht 1 bis 5 mm und die Auflage 5 bis 40 mm dick sein.The support consists of a foamed plastic. Preferably one uses thermoplastic soft foam, e.g. based on polyethylene or Polyvinyl chloride. On the soft foam pad, if necessary, in the same pressing process a decor report z.3. made of printed or unprinted film or a fleece 0 The thickness of the load-bearing layer and the overlay can vary depending on the Area of application vary within wide limits; preferably the load-bearing layer should 1 to 5 mm and the overlay 5 to 40 mm thick.

Die Herstellung der Formkörper erfolgt durch getrenntes Aufheizen der Halbzeug außerhalb des Werkzeuges und anschließendem Formen, Pressen und Abkühlen im Werkzeug. Die tragende Schicht aus faserverstärktem Thermoplast wird durch Erwärmung bis Ueber die Schmelztemperatur (180 bis 28000) formbar gemacht. Der Zusammenhalt dieser Schicht ist in diesem Zustand durch die langen Verstärkungsfasern gewährleistet.The moldings are produced by separate heating the semi-finished product outside the tool and then forming, pressing and cooling in the tool. The load-bearing layer made of fiber-reinforced thermoplastic is made by heating Made malleable to above the melting temperature (180 to 28,000). The cohesion this layer is guaranteed in this state by the long reinforcing fibers.

Die Auflage aus thermoplastischem Schaumstoff wird bis auf ihre Umformtemperatur (bei Polyäthylen etwa 14000) erwärmt.The layer made of thermoplastic foam is up to its forming temperature (about 14,000 for polyethylene).

Die Dekorschiobt kann zur Verbesserung der Verbindung mit dem Schaumstoff vorgewärmt oder sie kann direkt in die Form kalt eingelegt werden. Sie kann aber auch durch einen vorausgegangenen getrennten Arbeitsgang auf die Schaumstoffplatte aufgebracht werden. Das Aufnadeln eines Nadelvlieses auf die Schaumstoffplatte hat sich als besonders zweckmäßig erwiesen.The decor schiobt can improve the connection with the foam preheated or it can be placed cold directly in the mold. But she can also by a previous separate operation on the foam board be applied. The needling of a needle punch onto the foam board has proved to be particularly useful.

Die bei dem erfindungsgemäßen Verfahren eingesetzten Werkzeuge sind zur Erzielung guter Oberflächen #und Reduzierung der Abkühlzeit vorzugsweise temperierbar ausgerüstet und könne bei Bedarf mit einer Vakuumeinrichtung und mit Schneidkanten versehen werden. Der Formdruck in der Werkzeughöhlung ist über die Konstruktion des Formkörpers und des Werkzeuges, die Ausgangswanddicke der Schaumstoffauflage und deren Temperatur sowie die Auswahl der Kunststoffe fiir die tragende Schicht und die Dekorschicht beeinflußbar.The tools used in the method according to the invention are to achieve good surfaces # and to reduce the cooling time, preferably temperature-controllable equipped and can be equipped with a vacuum device and cutting edges if required be provided. The mold pressure in the mold cavity is over the design of the molding and the tool, the initial wall thickness the foam pad and their temperature as well as the selection of plastics for the load-bearing layer and the decorative layer can be influenced.

Ein zusätzlicher Formdruck wird über das sogenannte "Nachschäumen" des thermoplastischen Schaumes wirksam, Die Verbindung der Komponenten faserverstärkter Thermoplast/ Schaumstoff kann auch durch alleiniges Aufheizen einer Komponente erfolgen, weil in den meisten Anwendungsfällen der Überschuß an Wärme der einen Komponente ausreicht, um die andere Komponente anzuschmelzen bxw, die Schmelze in die Poren derselben eindringen zu lassen, Der Verfahrensablauf ist in der Zeichnung schematisch dargestellt und im folgenden näher erläutert0 Gemäß den Figuren 1 und 2 wird das Material fiir die tragende Schicht (1) entweder als Zuschnitt oder als Endlosmaterial durch IR-Strabler, Umluftofen oder Hochfrequenz (2) aufgeheizt.An additional form pressure is applied via the so-called "post-foaming" of the thermoplastic foam effective, The connection of the components fiber-reinforced Thermoplastic / foam can also be done by heating a component alone, because in most applications the excess heat of one component sufficient to melt the other component bxw, the melt in the pores to allow the same to penetrate, the process sequence is shown schematically in the drawing shown and explained in more detail below 0 According to Figures 1 and 2, the Material for the load-bearing layer (1) either as a cut or as an endless material heated by IR strabler, convection oven or high frequency (2).

Gleichzeitig wird die Schaumstoffauflage (3) z030 in einem Umluftofen (4) erwärmt, Nach dem Aufheizen der Halbzeug werden diese zusammen mit einer Dekorschicht (5) mittels Vorrichtungen (6) in die Presse (7) transportiert und die Werkzeughälften (8) geschlossen.At the same time, the foam pad (3) z030 is placed in a convection oven (4) heated, After the semi-finished product has been heated up, it is combined with a decorative layer (5) by means of devices (6) transported into the press (7) and the tool halves (8) closed.

Beispiel Herstellung eines freitragenden PKW-Himmels: Ein streifenförmiges, ca. 1,5 mm dickes Halbzeug aus Polyäthylen hoher Dichte, verstärkt durch ca, 35 Gewichtsprozent lange Glasfasern wird durch Infrarot-Strahler auf 21000 erwärmt0 Gleichzeitig wird eine etwa 15 mm dicke Platte aus Polyäthylenschaum durch einen Umluftofen auf ca. 14000 erhitzt0 Die Dekorschicht wird in die untere Werkzeughälfte eingelegt, worauf die drei Teile gleichzeitig in einer Form mit einem mittleren Druck von etwa 1 bar geformt und miteinander verhaftet werden. Nach etwa 1 Minute Ktihlzeit kann das Teil entnommen werden. L e e r s e i t eExample of the production of a self-supporting car headliner: A strip-shaped, Approx. 1.5 mm thick semi-finished product made of high-density polyethylene, reinforced by approx. 35 Weight percent long glass fibers are heated to 21,000 by infrared emitters At the same time an approximately 15 mm thick plate of polyethylene foam is through a Convection oven heated to approx. 140000 The decorative layer is placed in the lower half of the tool inserted, whereupon the three parts simultaneously in a mold with a middle Pressure of about 1 bar are formed and attached to each other. After about 1 minute The part can be removed for cooling time. L e r s e i t e

Claims (1)

Patentansprüche 1. Verfahren zur Herstellung von selbsttragenden, gepolsterten Formkörpern mit einer tragenden Schicht aus mit langen Fasern verstärkten thermoplastischen Kunststoffen und einer Auflage aus geschäumten Kunststoffen, dadurch gekennzeichnet, daß die tragende Schicht und die Auflage aus einem Weichschaum in einem Preßvorgang verformt und miteinander verbaftet werden, 2 Verfahren nach Ansprucb 19 dadurch gekenzeichnet, daß im selben Preßvorgang eine Dekorschicht mit auf den Formkörper aufgebracht wird, 5. Verfahren nach den Ansprüchen 1 und 2, dadurch #ekennzeicbnet,daß der Preßvorgang durch Vakuum unterstützt wird.Claims 1. Process for the production of self-supporting, padded moldings with a load-bearing layer made of reinforced with long fibers thermoplastics and a layer of foamed plastics, thereby characterized in that the supporting layer and the support made of a flexible foam in deformed in a pressing process and connected to one another, 2 methods according to claims 19 characterized in that in the same pressing process a decorative layer with on the Shaped body is applied, 5. The method according to claims 1 and 2, characterized # ekennzeicbnet that the pressing process is supported by vacuum. Zeichen.Sign.
DE19752545700 1975-10-11 1975-10-11 Self-supporting padded sandwich type mouldings e.g. car roof linings - comprising a fibre reinforced plastics lamina and a foamed coating Withdrawn DE2545700A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752545700 DE2545700A1 (en) 1975-10-11 1975-10-11 Self-supporting padded sandwich type mouldings e.g. car roof linings - comprising a fibre reinforced plastics lamina and a foamed coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752545700 DE2545700A1 (en) 1975-10-11 1975-10-11 Self-supporting padded sandwich type mouldings e.g. car roof linings - comprising a fibre reinforced plastics lamina and a foamed coating

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DE2545700A1 true DE2545700A1 (en) 1977-04-21

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179938A1 (en) * 1984-10-30 1986-05-07 Sekisui Kagaku Kogyo Kabushiki Kaisha Reinforced laminate
DE3507893A1 (en) * 1985-03-06 1986-09-11 Daimler-Benz Ag, 7000 Stuttgart Process for the partial underpadding of laminated lining boards
DE3614566A1 (en) * 1986-04-29 1987-11-05 Dynamit Nobel Ag METHOD FOR PRODUCING MULTILAYER MOLDED PARTS
EP0264495A1 (en) * 1986-10-22 1988-04-27 Schreiner Luchtvaart Groep B.V. A sandwich construction and a method of making a sandwich construction
EP0202930A3 (en) * 1985-05-23 1988-10-12 The Dow Chemical Company Process for forming a plastic article from a plurality of layers of thermoplastic material
EP0250883A3 (en) * 1986-06-26 1989-03-22 Fried. Krupp Gesellschaft mit beschränkter Haftung Damping layer
DE3734276A1 (en) * 1987-10-09 1989-04-20 Lentia Gmbh Fibre-reinforced thermoplastics with cover films
FR2627127A1 (en) * 1988-02-17 1989-08-18 Hp Chemie Pelzer Research Deve COMPOSITE MOLDING PART ESPECIALLY FOR MOTOR VEHICLES
EP0409080A1 (en) * 1989-07-18 1991-01-23 Sommer S.A. Products made of thermoformed materials comprising at least three layers, process for their manufacture and the application thereof.
US5043127A (en) * 1986-10-22 1991-08-27 Schreiner Luchtvaart Groep B.V. Method of making a shaped article from a sandwich construction
EP0367336A3 (en) * 1988-11-04 1991-08-28 Solvay Method of making by thermoforming a shaped composite insulating article comprising at least two polyolefin films and an intermediate insert with a cellular structure
EP0371743A3 (en) * 1988-11-28 1991-12-04 Mitsui Petrochemical Industries, Ltd. Laminated molded articles and processes for preparing same
EP0569846A3 (en) * 1992-05-13 1994-01-26 Roeder & Spengler Stanz
WO1997012756A1 (en) * 1995-10-04 1997-04-10 Isosport Verbundbauteile Gesellschaft Mbh Composite panels and process for manufacturing them
WO1997019813A1 (en) * 1995-11-28 1997-06-05 Ko & Co. Kft Flat composite insulating system and method of producing said system
WO1999061283A1 (en) * 1998-05-27 1999-12-02 The Dow Chemical Company Vehicle headliner comprised of a thermoformable thermoplastic foam sheet
WO2003057466A3 (en) * 2001-12-31 2003-12-31 Owens Corning Fiberglass Corp Structurally enhanced sound and heat energy absorbing liner and related method

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179938A1 (en) * 1984-10-30 1986-05-07 Sekisui Kagaku Kogyo Kabushiki Kaisha Reinforced laminate
DE3507893A1 (en) * 1985-03-06 1986-09-11 Daimler-Benz Ag, 7000 Stuttgart Process for the partial underpadding of laminated lining boards
EP0202930A3 (en) * 1985-05-23 1988-10-12 The Dow Chemical Company Process for forming a plastic article from a plurality of layers of thermoplastic material
US4826552A (en) * 1986-04-29 1989-05-02 Dynamit Nobel Aktiengesellschaft Process for the production of multiple-layer moldings
DE3614566A1 (en) * 1986-04-29 1987-11-05 Dynamit Nobel Ag METHOD FOR PRODUCING MULTILAYER MOLDED PARTS
EP0247344A3 (en) * 1986-04-29 1989-08-30 Hüls Troisdorf Aktiengesellschaft Method of making multi-layered articles
EP0250883A3 (en) * 1986-06-26 1989-03-22 Fried. Krupp Gesellschaft mit beschränkter Haftung Damping layer
US5043127A (en) * 1986-10-22 1991-08-27 Schreiner Luchtvaart Groep B.V. Method of making a shaped article from a sandwich construction
US4826723A (en) * 1986-10-22 1989-05-02 Schreiner Luchtvaart Groep B.V. Sandwich construction and a method of making a sandwich construction
EP0264495A1 (en) * 1986-10-22 1988-04-27 Schreiner Luchtvaart Groep B.V. A sandwich construction and a method of making a sandwich construction
DE3734276A1 (en) * 1987-10-09 1989-04-20 Lentia Gmbh Fibre-reinforced thermoplastics with cover films
FR2627127A1 (en) * 1988-02-17 1989-08-18 Hp Chemie Pelzer Research Deve COMPOSITE MOLDING PART ESPECIALLY FOR MOTOR VEHICLES
EP0367336A3 (en) * 1988-11-04 1991-08-28 Solvay Method of making by thermoforming a shaped composite insulating article comprising at least two polyolefin films and an intermediate insert with a cellular structure
EP0371743A3 (en) * 1988-11-28 1991-12-04 Mitsui Petrochemical Industries, Ltd. Laminated molded articles and processes for preparing same
EP0409080A1 (en) * 1989-07-18 1991-01-23 Sommer S.A. Products made of thermoformed materials comprising at least three layers, process for their manufacture and the application thereof.
EP0569846A3 (en) * 1992-05-13 1994-01-26 Roeder & Spengler Stanz
WO1997012756A1 (en) * 1995-10-04 1997-04-10 Isosport Verbundbauteile Gesellschaft Mbh Composite panels and process for manufacturing them
US5876534A (en) * 1995-10-04 1999-03-02 Isosport Verbundbauteile Gesellschaft M.B.H. Composite panels and process for manufacturing them
WO1997019813A1 (en) * 1995-11-28 1997-06-05 Ko & Co. Kft Flat composite insulating system and method of producing said system
WO1999061283A1 (en) * 1998-05-27 1999-12-02 The Dow Chemical Company Vehicle headliner comprised of a thermoformable thermoplastic foam sheet
WO2003057466A3 (en) * 2001-12-31 2003-12-31 Owens Corning Fiberglass Corp Structurally enhanced sound and heat energy absorbing liner and related method

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