DE3534690A1 - Self-supporting sound-insulating panel - Google Patents

Self-supporting sound-insulating panel

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Publication number
DE3534690A1
DE3534690A1 DE19853534690 DE3534690A DE3534690A1 DE 3534690 A1 DE3534690 A1 DE 3534690A1 DE 19853534690 DE19853534690 DE 19853534690 DE 3534690 A DE3534690 A DE 3534690A DE 3534690 A1 DE3534690 A1 DE 3534690A1
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Germany
Prior art keywords
panel according
foam layer
soundproofing panel
layers
layer
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Granted
Application number
DE19853534690
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German (de)
Other versions
DE3534690C2 (en
Inventor
Klaus Dipl Ing Dr Greiner
Wolfgang Guyot
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Greiner & Soehne C A
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Greiner & Soehne C A
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Priority to DE19853534690 priority Critical patent/DE3534690A1/en
Publication of DE3534690A1 publication Critical patent/DE3534690A1/en
Application granted granted Critical
Publication of DE3534690C2 publication Critical patent/DE3534690C2/de
Granted legal-status Critical Current

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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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
    • B32B19/047—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material of foam
    • 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
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • 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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0285—Condensation resins of aldehydes, e.g. with phenols, ureas, melamines
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked
    • 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
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B32B2315/085—Glass fiber cloth or 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/14—Mineral wool
    • 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
    • B32B2361/00—Phenoplast, aminoplast
    • 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

Abstract

For a self-supporting sound-insulating panel, a layer of rigid polyurethane foam, phenolic resin foam or melamine resin foam with very low density is proposed as effective sound-absorption medium. To protect this plastic foam layer against damage and to achieve a self-supporting sandwich structure, the plastic foam layer is laminated on both sides with dimensionally stable sheet-like structures. Cross-linked synthetic-fibre non-woven fabrics or slabstock foam layers of polyurethane foam, with a skin formed on the outside, are provided as such flat structures. This slabstock foam layer may be reinforced by a mineral fibre, glass-fibre or synthetic fibre non-woven fabric which is advantageously fused into the skin during thermal skin-formation of the slabstock foam layer. <IMAGE>

Description

Die Erfindung befaßt sich mit einer selbsttragenden Schalldämmplatte aus einer Schaumstoffschicht, die auf beiden Seiten durch dünnere Schichten anderen Materials abgedeckt ist.The invention is concerned with a self-supporting Soundproofing plate made of a foam layer, the on both sides by thinner layers of others Material is covered.

Derartige Schalldämmplatten werden bspw. im Auto­ mobilbau verwendet, um - unter der Motorhaube ein­ gebaut - die Schallemission des Motors zu verringern. Sie werden jedoch auch in vielen anderen Fällen ein­ gesetzt, in denen die Ausbreitung von Schall ver­ mindert werden soll.Such soundproofing panels are used, for example, in the car mobilbau used to - under the hood built - to reduce the noise emission of the engine. However, you will also be in many other cases set in which the propagation of sound ver should be reduced.

Es sind selbsttragende Bauteile der eingangs genannten Art bekannt, bei denen eine Lage elastischen Schaumstoffes aus Weichpolyurethan besteht, die auf der einen Seite von einer in Form gezogenen, steifen Trägerplatte aus massivem oder geschäumten Material abgedeckt ist und auf der anderen Seite durch eine Decke aus dem gleichen Material oder aus Papier oder aus Kunststoff- oder Metallfolie abgedeckt sein kann (DE-GM 79 11 356).There are self-supporting components at the beginning known type in which a layer elastic Foam made of soft polyurethane, which on one side of a rigid, drawn in shape Carrier plate made of solid or foamed material is covered and on the other hand by a Blanket of the same material or of paper or be covered from plastic or metal foil can (DE-GM 79 11 356).

En derartiges Bauteil ist infolge des hohen Raum­ gewichtes der verwendeten Materialien insgesamt sehr schwer und muß - um die verlangte Eigentragfähigkeit aufzuweisen - eine gewisse Dicke haben, die wiederum das Gewicht des Bauteils erhöht. Such a component is due to the high space overall weight of the materials used heavy and must - for the required self-bearing capacity have a certain thickness, which in turn the weight of the component increases.  

Der Erfindung war demgemäß die Aufgabe gestellt, ein derartiges, als Schalldämmplatte dienendes Bauteil möglichst leicht auszubilden, dabei jedoch keine Einbußen an Eigentragfähigkeit und Schallabsorption hinzunehmen.The invention was accordingly the object of such a component serving as a soundproofing panel to train as easily as possible, but none Loss of self-bearing capacity and sound absorption to accept.

Sie löst diese Aufgabe durch die im Kennzeichen des Hauptanspruches angegebenen Merkmale.It solves this task by the in the mark of the Main claim specified features.

Steifer Polyurethan-, Phenol- oder Melaminharzschaum mit sehr geringer Dichte zeichnet sich durch ein äußerst geringes Raumgewicht und eine hohe Eigensteifigkeit aus. Es hat sich überraschenderweise gezeigt, daß er auch ein sehr hohes Schallabsorptionsvermögen hat.Rigid polyurethane, phenol or melamine resin foam with very low density is characterized by an extremely low density and high inherent rigidity out. Surprisingly, it has been shown that he also has a very high sound absorption capacity.

Da steifer Polyurethan-, Phenol- oder Melaminharz­ schaum leicht mechanisch verletzbar ist, kann der durch grobe mechanische Einwirkungen (Kratzer usw.) leicht beschädigt werden. Dem beugen die erfindungsgemäß vorgesehenen, mechanisch ausreichend festen Abdeck­ schichten vor. Die durch die hohe mechanische Festigkeit bedingte Formstabilität dieser Abdeck­ schichten führt bei der durch die erfindungsgemäße Anordnung der Schichten erzielten Sandwichbauart zu einer im Hinblick auf das geringe Raum- und Flächen­ gewicht der gesamten Schalldämmplatte überraschenden Steifigkeit und damit zu der verlangten Eigentrag­ fähigkeit.Because rigid polyurethane, phenolic or melamine resin foam is easily mechanically vulnerable, can by rough mechanical influences (scratches, etc.) easily to be damaged. The bow according to the invention provided, mechanically sufficiently strong cover layers before. The high mechanical Strength-related dimensional stability of this cover stratification leads to that of the invention Arrangement of the layers achieved sandwich design one in view of the small space and areas weight of the entire soundproofing board surprising Rigidity and thus to the required self-support ability.

Den Abdeckschichten kommt somit eine Doppelfunktion zu: sie schützen die mechanisch leicht verletzbare steife Polyurethan-, Phenol- oder Melaminharzschaumschicht vor Beschädigung und sie nehmen in der Sandwichstruktur die durch das Eigengewicht sowie bei Belastung der Platte auftretenden Zug- und Schubkräfte auf und be­ wirken so die Steifigkeit und Eigentragfähigkeit der Schalldämmplatte.The cover layers therefore have a double function: they protect the mechanically easily vulnerable rigid Polyurethane, phenol or melamine resin foam layer from damage and they take in the sandwich structure caused by the weight and when the Plate occurring tensile and shear forces on and be the stiffness and self-bearing capacity of the Sound insulation board.

Die Verwendung von luftdurchlässigen Materialien für die Abdeckschichten erlauben es der Luft, unter Wirkung des Schalldruckes in die Schalldämmplatte einzudringen oder sie gar zu durchdringen. Dies ist für die durch Aufzehrung der Schallenergie in der Platte oder in einem belassenen Zwischenraum zwischen der Platte und der durch die Platte abge­ deckten Fläche bewirkten Schallabsorption von aus­ schlaggebender Bedeutung. Die Abdeckschichten bestehen daher erfindungsgemäß aus (Polyurethan-) Weichschaum mit nur ganz dünner, noch luftdurchlässiger Ver­ hautung und/oder aus schon ihrer Natur nach luft­ durchlässigen Faservliesen. So zeichnet sich ins­ besondere das vorgeschlagene Glasfaservlies durch geringes Flächengewicht bei trotzdem großer Dimensionsstabilität und großer Luftdurchlässigkeit aus. Unbrennbarkeit ist dem Werkstoff Glas ohnehin immanent.The use of air permeable materials for the cover layers allow the air to go under Effect of the sound pressure in the sound insulation board to penetrate or even penetrate them. This is for those by consuming the sound energy in the  Plate or in a space left between the plate and the abge through the plate covered area caused sound absorption from of crucial importance. The cover layers exist therefore according to the invention from (polyurethane) flexible foam with only very thin, still breathable Ver skin and / or natural air permeable non-woven fabrics. This is how in particular the proposed glass fiber fleece low basis weight but still large Dimensional stability and great air permeability out. The material glass is non-combustible anyway immanent.

Im übrigen kann die Luftdurchlässigkeit der Schall­ dämmplatte durch die Wahl der Dichte und/oder der Porengröße der Schaumstoffschichten beeinflußt und den Erfordernissen angepaßt werden.In addition, the air permeability of the sound insulation board by choosing the density and / or the Influences the pore size of the foam layers and be adapted to requirements.

Die Verhautung der abdeckenden PU-Schaumschicht hat den Zweck, die Schalldämmplatte gegen Eindringen von Schmutz und Flüssigkeit zu schützen.The covering of the covering PU foam layer has the purpose of protecting the soundproofing panel from intrusion Protect dirt and liquid.

Das vorgesehene Kaschieren gewährleistet eine innige Verbindung der Schichten und damit das volle Wirksam­ werden der Sandwichbauweise. Das Kaschieren kann auf beliebige bekannte Art erfolgen, bspw. durch Auf­ bringen eines Sprühklebers, durch wasserlösliche oder lösungsmittellösliche Binder oder auch durch Ein­ bringen einer unter Wärmeeinwirkung schmelzenden und nach Wiedererhärten die Schichten verbindenden Kunststoffolie.The intended lamination ensures an intimate Connection of the layers and thus the full effectiveness become the sandwich construction. The lamination can any known type take place, for example. On bring a spray adhesive, by water soluble or solvent-soluble binders or also by a bring a melting and exposure to heat after re-hardening the layers connecting Plastic film.

Durch das Formpressen unter erhöhter Temperatur wird die im Rohzustand eher einer Matte entsprechende Schichtkombination in eine formstabile Platte über­ führt. Hierbei wird der Schalldämmplatte nicht nur die erforderliche Kontour gegeben, die durch die Kontour der abzudeckenden Fläche bestimmt wird. Die hierbei entstehenden Sicken, Flächenwinkel, Mulden, Grate usw. erhöhen die Steifigkeit der Platte zu­ sätzlich. Es werden aber auch die Schaumschichten der Platte unter dem Druck der Presse und der Ein­ wirkung der erhöhten Temperatur nicht nur bleibend verformt, sondern auch komprimiert und damit ihre Steifigkeit und Formstabilität ebenfalls erhöht.By molding under elevated temperature that in the raw state more like a mat Layer combination in a dimensionally stable plate leads. Here, the soundproofing panel is not only given the required contour by the Contour of the area to be covered is determined. The The resulting beads, surface angles, hollows,  Burrs etc. increase the rigidity of the plate additionally. But there are also the foam layers the plate under the pressure of the press and the one effect of the elevated temperature is not only permanent deformed, but also compressed and thus yours Stiffness and dimensional stability also increased.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen enthalten. In der Zeichnung sind schematische Querschnitte durch Abschnitte der erfindungsgemäßen Schalldämmplatte dargestellt:Further advantageous embodiments of the invention are contained in the subclaims. In the Drawing are schematic cross sections through Sections of the soundproofing panel according to the invention shown:

Fig. 1 zeigt die Rohmatte vor dem Formver­ pressen, Fig. 1 shows the raw mat press before the Formver,

Fig. 2 zeigt eine formverpresste Schalldämm­ platte Hauptbestandteil der Schalldämmplatte ist eine Schicht 1 aus steifem Polyurethan-, Phenol- oder Melaminharzschaum, die im unverpressten Zustand ein Raumgewicht von 5 kg/m3 bis 35 kg/m3 und je nach Bedarf (gefordertes Schallschluckvermögen, auszu­ kleidendes Volumen, Abmessungen der Platte usw.) eine Dicke von 5 mm bis 50 mm aufweisen kann. Fig. 2 shows a compression molded soundproofing board The main component of the soundproofing board is a layer 1 made of rigid polyurethane, phenol or melamine resin foam, which in the uncompressed state has a density of 5 kg / m 3 to 35 kg / m 3 and, depending on requirements (required sound absorption capacity , volume to be clad, plate dimensions, etc.) can have a thickness of 5 mm to 50 mm.

Auf der in der Zeichnung oberen Seite ist die Poly­ urethan-, Phenol- oder Melaminharzschaumschicht 1 mit einer Abdeckschicht 2 kaschiert, die aus dichtem, aber luftdurchlässigem Material, vorzugsweise aus einem vernetzten Kunststoff-Faservlies mit einem Flächengewicht von 20 g/m2 bis 500 g/m2 besteht. ln manchen Fällen ist es auch vorteilhaft, hierfür eine dünne Kunststoffplatte zu verwenden.On the upper side in the drawing which is poly urethane, laminated phenolic or melamine resin foam layer 1 with a cover 2 made of dense, but air-permeable material, preferably of a crosslinked plastic fiber fleece with a basis weight of 20 g / m 2 to 500 g / m 2 exists. In some cases it is also advantageous to use a thin plastic plate for this.

Auf der in der Zeichnung unteren Seite ist die Poly­ urethan-, Phenol- oder Melaminharzschaumschicht 1 mit einer Polyurethan-Weich-Blockschaumschicht 3 kaschiert, die im unverpressten Zustand ein Raum­ gewicht von 10 kg/m3 bis 50 kg/m3 und eine Dicke von etwa 3 mm bis etwa 5 mm aufweisen soll.On the lower side in the drawing, the poly urethane, phenol or melamine resin foam layer 1 is laminated with a polyurethane soft block foam layer 3 , which in the uncompressed state has a density of 10 kg / m 3 to 50 kg / m 3 and a thickness from about 3 mm to about 5 mm.

Diese PU-Weich-Blockschaumschicht 3 ist auf ihrer frei liegenden Seite so dünn verhautet, daß sie luftdurch­ lässig bleibt. Bei der in der Regel durch Einwirkung erhöhter Temperatur vorgenommenen und mit einem vor­ übergehenden Schmelzen der Oberfläche der Block­ schaumschicht 3 verbundenen Verhautung kann in die entstehende Hautschicht ein dünnes Faservlies, vor­ zugsweise ein Mineral- oder Glasfaservlies mit einem Flächengewicht von etwa 10 g/m2 bis etwa 100 g/m2 eingeschmolzen werden.This PU soft block foam layer 3 is so thinly thinned on its exposed side that it remains permeable to air. When the skin is usually made by the action of elevated temperature and is associated with a temporary melting of the surface of the block foam layer 3 , a thin nonwoven fabric, preferably a mineral or glass fiber nonwoven with a basis weight of about 10 g / m 2, can be introduced into the skin layer are melted down to about 100 g / m 2 .

Die so vorbereitete Schichtenkombination in Sandwich­ art wird anschließend in einer Presse unter Einwirkung von erhöhter Temperatur von etwa 170 °C bis etwa 230 °C in die vorgesehene Raumform gedrückt. Dabei erweichen die Schichten und erstarren nach Absinken der Tempera­ tur in der beabsichtigten Raumform.The sandwich combination prepared in this way art is then influenced in a press from an elevated temperature of about 170 ° C to about 230 ° C pressed into the intended spatial shape. Soften it the layers and solidify after the tempera drops structure in the intended space.

Unter Einwirkung des aufgewendeten Pressendruckes ver­ dichten sich dabei die Schaumstoffschichten 1 und 3 je nach stellenweiser Plattendicke um etwa 15% bis um etwa 70%. So vermindert sich die Dicke der Platte im Bereich der Sicke 5 auf etwa die Hälfte bzw. erhöht sich das Raumgewicht an dieser Stelle 6 auf das Doppelte des Ausgangswertes. lm Bereich 7 beträgt die Verminderung der Dicke bzw. die Erhöhung des Raumge­ wichtes gegenüber dem Ausgangszustand etwa 1/3, im Bereich 8 tritt nur eine geringfügige Veränderung der Dicke und des Raumgewichtes ein.Under the influence of the press pressure applied, the foam layers 1 and 3 condense depending on the local plate thickness by about 15% to about 70%. The thickness of the plate in the area of the bead 5 is reduced to about half, or the density at this point 6 increases to twice the initial value. In the area 7 is the reduction in the thickness or increasing the Raumge wichtes compared to the initial state is about 1/3 of, the portion 8 only a slight change in the thickness and the bulk density occurs.

Claims (11)

1. Selbsttragende Schalldämmplatte aus einer Schaum­ stoffschicht, die auf beiden Seiten durch dünnere Schichten anderen Materials abgedeckt ist, dadurch gekennzeichnet, daß die Schaumstoffschicht (1) aus steifem Polyurethan-, Phenol- oder Melaminharz­ schaum sehr geringe Dichte und die beidseitigen Abdeckschichten (2; 3) aus einem Trägermaterial, das dichter als das Material der Schaumstoffschicht (1), aber luftdurchlässig ist, bestehen, wobei die Schichten (1; 2; 3) aufeinander kaschiert und gemeinsam unter hoher Temperatur formverpreßt sind.1. Self-supporting soundproofing plate made of a foam layer that is covered on both sides by thinner layers of other material, characterized in that the foam layer ( 1 ) made of rigid polyurethane, phenol or melamine resin foam very low density and the cover layers on both sides ( 2 ; 3 ) consist of a carrier material which is denser than the material of the foam layer ( 1 ), but is permeable to air, the layers ( 1 ; 2 ; 3 ) being laminated to one another and pressed together under high temperature. 2. Schalldämmplatte nach Anspruch 1, dadurch gekenn­ zeichnet, daß die Polyurethan- Phenol- oder Melaminharzschaumschicht (1) im Ausgangszustand ein Raumgewicht von 5 kg/m3 bis 35 kg/m3 und eine Dicke von 5 mm bis 50 mm aufweist.2. Soundproofing panel according to claim 1, characterized in that the polyurethane phenol or melamine resin foam layer ( 1 ) in the initial state has a density of 5 kg / m 3 to 35 kg / m 3 and a thickness of 5 mm to 50 mm. 3. Schalldämmplatte nach Anspruch 1, dadurch gekenn­ zeichnet, daß die eine der Abdeckschichten (2) aus einer steifen Kunststoffplatte besteht. 3. Sound insulation panel according to claim 1, characterized in that one of the cover layers ( 2 ) consists of a rigid plastic plate. 4. Schalldämmplatte nach Anspruch 1, dadurch gekenn­ zeichnet, daß die eine der Abdeckschichten (2) aus einem flexiblen, dimensionsstabilen Flächengebilde besteht.4. Soundproofing panel according to claim 1, characterized in that the one of the cover layers ( 2 ) consists of a flexible, dimensionally stable fabric. 5. Schalldämmplatte nach Anspruch 4, dadurch gekenn­ zeichnet, daß das Flächengebilde ein vernetztes Faservlies mit einem Flächengewicht von 20 g/m2 bis 500 g/m2 ist.5. Soundproofing panel according to claim 4, characterized in that the fabric is a cross-linked nonwoven fabric with a basis weight of 20 g / m 2 to 500 g / m 2 . 6. Schalldämmplatte nach Anspruch 1, dadurch gekenn­ zeichnet, daß die andere Abdeckschicht (3) aus einer auf der Außenseite dünn verhauteten Weich­ polyurethan-Blockschaumschicht im Ausgangszustand mit einem Raumgewicht von 10 kg/m3 bis 50 kg/m3 und einer Dicke von 3 mm bis 5 mm besteht.6. Soundproofing panel according to claim 1, characterized in that the other cover layer ( 3 ) from a thin-skin on the outside soft polyurethane block foam layer in the initial state with a density of 10 kg / m 3 to 50 kg / m 3 and a thickness of 3 mm to 5 mm. 7. Schalldämmplatte nach Anspruch 1, dadurch gekenn­ zeichnet, daß die andere Abdeckschicht (3) aus einem Faservlies mit einem Flächengewicht von 10 g/m2 bis 100 g/m2 besteht.7. Soundproofing panel according to claim 1, characterized in that the other cover layer ( 3 ) consists of a nonwoven fabric with a basis weight of 10 g / m 2 to 100 g / m 2 . 8. Schalldämmplatte nach Anspruch 6, dadurch gekenn­ zeichnet, daß in die verhautete Außenseite der Weichpolyurethan-Blockschaumschicht (3) ein Faser­ vlies (4) eingeschmolzen ist.8. Soundproofing panel according to claim 6, characterized in that in the skin-covered outside of the soft polyurethane block foam layer ( 3 ) a fiber fleece ( 4 ) is melted. 9. Schalldämmplatte nach einem der Ansprüche 5, 7 oder 8, dadurch gekennzeichnet, daß das Faservlies ein Mineral- oder Glasfaservlies ist.9. Soundproofing panel according to one of claims 5, 7 or 8, characterized in that the nonwoven fabric is a mineral or glass fiber fleece. 10. Schalldämmplatte nach Anspruch 8, dadurch gekenn­ zeichnet, daß das Faservlies (4) ein Flächen­ gewicht von 10 g/m2 bis 100 g/m2 aufweist.10. Soundproofing panel according to claim 8, characterized in that the nonwoven fabric ( 4 ) has a weight per unit area of 10 g / m 2 to 100 g / m 2 . 11. Schalldämmplatte nach Anspruch 1, dadurch gekenn­ zeichnet, daß die kaschierten Schichten (1; 2; 3) unter einer Temperatur von 170°C bis 230°C formverpreßt sind.11. Soundproofing panel according to claim 1, characterized in that the laminated layers ( 1 ; 2 ; 3 ) are pressed at a temperature of 170 ° C to 230 ° C.
DE19853534690 1985-09-28 1985-09-28 Self-supporting sound-insulating panel Granted DE3534690A1 (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250883A2 (en) * 1986-06-26 1988-01-07 Fried. Krupp Gesellschaft mit beschränkter Haftung Damping layer
DE3724680A1 (en) * 1987-07-25 1989-02-02 Helmut Pelzer Panel-shaped sound-insulating and absorption element for lining the interior of motor vehicles
DE3734239A1 (en) * 1987-10-09 1989-04-27 H P Chemie Pelzer Res & Dev Front-wall lining for automobiles for shielding the passenger compartment from the engine compartment
EP0350807A2 (en) * 1988-07-14 1990-01-17 C.A. Greiner & Söhne Gesellschaft M.B.H. Moulded foam panel and method for its production
DE3905607A1 (en) * 1989-02-23 1990-08-30 Bayerische Motoren Werke Ag LAYER BUILDING FOR THE PRODUCTION OF SOUND INSULATIONS, SOUND INSULATIONS AND METHOD FOR THE PRODUCTION OF THE LAYER BUILDING OR OF SOUND INSULATION
WO1997006320A1 (en) * 1995-08-03 1997-02-20 Hermanson Lars S Self-supporting interior surface panel
WO1997036284A1 (en) * 1996-03-26 1997-10-02 M. Faist Gmbh & Co. Kg Multi-layer sound-absorbent component
EP1088690A1 (en) * 1999-09-28 2001-04-04 Valeo Climatisation Heat exchanger with insulation, especially for a motor vehicle
EP1456013A1 (en) * 2001-11-21 2004-09-15 Collins & Aikman Products Co. Sound attenuating/absorbing laminates and methods of making same
EP1510408A1 (en) * 2003-08-28 2005-03-02 Basf Aktiengesellschaft Lining for bonnets in motor-vehicles
DE102006018090B3 (en) * 2006-04-18 2007-08-30 Carcoustics Techconsult Gmbh Engine-bay hood noise damping lining e.g. for motor vehicle, uses pressure-molded part formed from woody fibers and thermoplastics fibers as self-supporting layer
WO2009077616A1 (en) * 2007-12-19 2009-06-25 Basf Se Molded parts made of carrier materials which contain foaming reactive resin
DE102009020996A1 (en) * 2009-05-12 2010-11-18 Aksys Gmbh Airborne sound insulating material structure
EP2574506A1 (en) * 2011-09-30 2013-04-03 Centre D'etude Et De Recherche Pour L'automobile (Cera) Method for producing an acoustic shield for covering an automobile engine

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DE9300151U1 (en) * 1993-01-08 1993-03-11 Wilhelmi Werke Gmbh & Co Kg, 6335 Lahnau, De
DE10025482B9 (en) * 2000-05-23 2006-05-11 Ideal Automotive Gmbh Continuous sound-absorbing additional mat for motor vehicles
DE102019117717A1 (en) * 2019-07-01 2021-01-07 Wolf Gmbh Cladding part and sound insulation hood for a heat pump

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DE2706446A1 (en) * 1976-04-21 1977-11-03 Hayashi Telenpu Co Ltd Moulded lining ror roof, floor etc. of motor vehicle - with thermoplastic film and sound absorbing cover layer
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EP0079253A1 (en) * 1981-11-09 1983-05-18 Automobiles Peugeot Vehicle roof liner
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DE1974220U (en) * 1967-09-16 1967-12-07 Bernd Reisgies INSULATING PANEL ELEMENT.
DE2434175A1 (en) * 1973-07-16 1975-02-06 Toyo Tire & Rubber Co Composite lining for motor vehicle doors - comprising a rigid polyurethane foam reinforced with thermoplastics-fibre fabric layer
DE2510607A1 (en) * 1974-03-18 1975-09-25 Matec Holding DEFORMABLE SOUND ABSORBING PRODUCT
DE2558365A1 (en) * 1974-12-31 1976-07-08 Schwitter Schlaepfer Eugen Noise suppression cladding for walls and casings - using layer of expanded material covered by plastic reinforced with glass fibre
DE2706446A1 (en) * 1976-04-21 1977-11-03 Hayashi Telenpu Co Ltd Moulded lining ror roof, floor etc. of motor vehicle - with thermoplastic film and sound absorbing cover layer
DE2735153A1 (en) * 1977-08-04 1979-02-15 Helmut Pelzer Lightweight elastic double mat for acoustic damping, esp. in cars - having open cell polyurethane foam covered with filled rigid polyurethane foam
DE2751774A1 (en) * 1977-11-19 1979-05-23 Helmut Pelzer Sound absorbing polyurethane foam composite - with layers of flexible and dense polyurethane foam, useful for deadening engine noise
DE2818252A1 (en) * 1978-04-26 1979-11-08 Helmut Pelzer Motor vehicle body noise suppressing panel - has outer layers of different hardness and low bulk density laminated to inner layer of foamed plastics or felt
EP0079253A1 (en) * 1981-11-09 1983-05-18 Automobiles Peugeot Vehicle roof liner
DE8211797U1 (en) * 1982-04-23 1982-10-14 Cellofoam Deutschland Gmbh, 7950 Biberach Sound-absorbing mats, in particular for motor vehicles
DE3215244A1 (en) * 1982-04-23 1983-10-27 Cellofoam Deutschland Gmbh, 7950 Biberach Sound-proofing lining, in particular for motor vehicles, and a process for its manufacture
DE3301682A1 (en) * 1983-01-20 1984-07-26 Irbit Holding AG, Freiburg/Fribourg Process for manufacturing sound-absorbing bodies

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250883A2 (en) * 1986-06-26 1988-01-07 Fried. Krupp Gesellschaft mit beschränkter Haftung Damping layer
EP0250883A3 (en) * 1986-06-26 1989-03-22 Fried. Krupp Gesellschaft mit beschränkter Haftung Damping layer
DE3724680A1 (en) * 1987-07-25 1989-02-02 Helmut Pelzer Panel-shaped sound-insulating and absorption element for lining the interior of motor vehicles
DE3734239A1 (en) * 1987-10-09 1989-04-27 H P Chemie Pelzer Res & Dev Front-wall lining for automobiles for shielding the passenger compartment from the engine compartment
EP0350807A2 (en) * 1988-07-14 1990-01-17 C.A. Greiner & Söhne Gesellschaft M.B.H. Moulded foam panel and method for its production
EP0350807A3 (en) * 1988-07-14 1992-10-14 C.A. Greiner & Söhne Gesellschaft M.B.H. Moulded foam panel and method for its production
DE3905607A1 (en) * 1989-02-23 1990-08-30 Bayerische Motoren Werke Ag LAYER BUILDING FOR THE PRODUCTION OF SOUND INSULATIONS, SOUND INSULATIONS AND METHOD FOR THE PRODUCTION OF THE LAYER BUILDING OR OF SOUND INSULATION
WO1997006320A1 (en) * 1995-08-03 1997-02-20 Hermanson Lars S Self-supporting interior surface panel
US5832685A (en) * 1995-08-03 1998-11-10 Hermanson; Lars S. Self-supporting interior surface panel
WO1997036284A1 (en) * 1996-03-26 1997-10-02 M. Faist Gmbh & Co. Kg Multi-layer sound-absorbent component
EP1088690A1 (en) * 1999-09-28 2001-04-04 Valeo Climatisation Heat exchanger with insulation, especially for a motor vehicle
FR2799820A1 (en) * 1999-09-28 2001-04-20 Valeo Climatisation HEAT EXCHANGER WITH INSULATION, PARTICULARLY FOR A MOTOR VEHICLE
EP1456013A1 (en) * 2001-11-21 2004-09-15 Collins & Aikman Products Co. Sound attenuating/absorbing laminates and methods of making same
EP1456013A4 (en) * 2001-11-21 2007-10-17 Collins & Aikman Prod Co Sound attenuating/absorbing laminates and methods of making same
EP1510408A1 (en) * 2003-08-28 2005-03-02 Basf Aktiengesellschaft Lining for bonnets in motor-vehicles
DE102006018090B3 (en) * 2006-04-18 2007-08-30 Carcoustics Techconsult Gmbh Engine-bay hood noise damping lining e.g. for motor vehicle, uses pressure-molded part formed from woody fibers and thermoplastics fibers as self-supporting layer
WO2009077616A1 (en) * 2007-12-19 2009-06-25 Basf Se Molded parts made of carrier materials which contain foaming reactive resin
DE102009020996A1 (en) * 2009-05-12 2010-11-18 Aksys Gmbh Airborne sound insulating material structure
EP2574506A1 (en) * 2011-09-30 2013-04-03 Centre D'etude Et De Recherche Pour L'automobile (Cera) Method for producing an acoustic shield for covering an automobile engine
FR2980734A1 (en) * 2011-09-30 2013-04-05 Cera METHOD FOR PRODUCING AN ACOUSTIC PROTECTION SCREEN FOR COVERING A MOTOR VEHICLE ENGINE

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