DE29819991U1 - Sound absorption system - Google Patents
Sound absorption systemInfo
- Publication number
- DE29819991U1 DE29819991U1 DE29819991U DE29819991U DE29819991U1 DE 29819991 U1 DE29819991 U1 DE 29819991U1 DE 29819991 U DE29819991 U DE 29819991U DE 29819991 U DE29819991 U DE 29819991U DE 29819991 U1 DE29819991 U1 DE 29819991U1
- Authority
- DE
- Germany
- Prior art keywords
- foam
- sound
- sound absorption
- absorption system
- open
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010521 absorption reaction Methods 0.000 title claims description 7
- 239000006260 foam Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 4
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 238000011089 mechanical engineering Methods 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000010097 foam moulding Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 2
- 229920005832 Basotect® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B32B5/22—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
- B32B5/32—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 at least two layers being foamed and next to each other
-
- 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
-
- 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
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/06—Open cell 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
- 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
- B32B2605/00—Vehicles
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Pipe Accessories (AREA)
Description
SchallschlucksystemSound absorption system
Beschreibung
5Description
5
Die Erfindung betrifft einen schallabsorbierenden Schaumstoff-Formkörper auf Basis eines offenzelligen Schaumkunststoffs.The invention relates to a sound-absorbing foam molded body based on an open-cell foam plastic.
Offenzellige Schaumkunststoffe auf Basis von Polyurethanen und Melamin/Formaldehyd-Kondensationsharzen eignen sich hervorragend als Schallabsorptionsmaterialien, sie werden in zunehmenden Maße in vielen technischen Anwendungen eingesetzt. Naturgemäß sind jedoch auch diese Schaumstoffe mit einigen Nachteilen behaftet, beispielsweise zeigen sie eine verhältnismäßig große Wasseraufnähme. In manchen Anwendungsfällen ist auch die Möglichkeit des Bakterienbefalls störend.Open-cell foam plastics based on polyurethanes and melamine/formaldehyde condensation resins are ideal as sound absorption materials and are increasingly being used in many technical applications. However, these foams naturally also have some disadvantages, for example they absorb a relatively high amount of water. In some applications, the possibility of bacterial contamination is also a problem.
Der Erfindung lag daher die Aufgabe zugrunde, diese Nachteile zu überwinden.The invention was therefore based on the object of overcoming these disadvantages.
Dies wird erfindungsgemäß dadurch erreicht, daß der offenzellige Schaumkunststoff mit einem Polyolefin-Partikelschaumstoff kombiniert wird. Letzterer hat den Vorteil, daß er zähelastisch ist und dadurch auf einfache Weise mit dem Weichschaum zusammengeführt oder verklebt werden kann.This is achieved according to the invention by combining the open-cell foam plastic with a polyolefin particle foam. The latter has the advantage that it is tough and elastic and can therefore be easily combined or glued to the soft foam.
Der offenzellige Schaumkunststoff ist vorzugsweise ein Polyurethan-Weichschaum, insbesondere aber geschäumtes Melamin/Formaldehyd-Kondensationsprodukt, wie es z. B. in EP-B 17 672 beschrieben ist. Ein entsprechendes Handelsprodukt ist BASOTECT der BASF AG. Die Dichte dieses Schaumkunststoffs liegt im allgemeinen zwischen 10 und 50 kg · irr3. In dem erfindungsgemäßen Verbund liegt der schallabsorbierende Schaumkunststoff als 1 bis 10 cm dicke Platte oder als Formteil vor, welches aus einem dicken Block herausgeschnitten wurde.The open-cell foam is preferably a flexible polyurethane foam, but in particular a foamed melamine/formaldehyde condensation product, as described, for example, in EP-B 17 672. A corresponding commercial product is BASOTECT from BASF AG. The density of this foam is generally between 10 and 50 kg · irr 3 . In the composite according to the invention, the sound-absorbing foam is present as a 1 to 10 cm thick plate or as a molded part which has been cut out of a thick block.
Als Polyolefin-Partikelschaumstoff eignen sich insbesondere Polyethylen- und insbesondere Polypropylen-Schaumstoffe. Diese werden hergestellt durch Verschweißen von Schaumstoffpartikeln in Formteilautomaten mit Hilfe von Wasserdampf. Dabei entstehen Schaumstoff-Formteile beliebiger Form, die im allgemeinen eine Dichte von 15 bis 100 kg · rrr3 aufweisen. Die Formteile weisen im vorliegenden Fall ebenfalls eine Dicke von 1 bis 10 cm auf.Polyethylene and especially polypropylene foams are particularly suitable as polyolefin particle foams. These are produced by welding foam particles in automatic molding machines using steam. This produces foam moldings of any shape, which generally have a density of 15 to 100 kg · rrr 3. In this case, the moldings also have a thickness of 1 to 10 cm.
Zur Herstellung des erfindungsgemäßen Schallschlucksystems klebt man zweckmäßigerweise die Weichschaumplatte auf das Partikelschaum-Formteil, z. B. mit Hilfe von Klebern auf Basis von Po-To produce the sound absorption system according to the invention, the soft foam plate is advantageously glued to the particle foam molding, e.g. using adhesives based on poly-
BASF Aktiengesellschaft 980384 O.Z. 0050/49147 DEBASF Aktiengesellschaft 980384 O.Z. 0050/49147 DE
' lychlorbutadien. Man kann aber die beiden Komponenten auch unter Nutzung der Zähelastizität des Partikelschaum-Formteils durch Kraftschluß miteinander verbinden, indem man beispielsweise die Weichschaumplatte an ein Partikelschaum-Formteil klemmt oder mittels hinterschnittener Partikelschaum-Formteilkonturen oder flexibler Partikelschaum-Formteilfixierungselemente befestigt.' lychlorobutadiene. However, the two components can also be connected to one another by force-locking using the tough elasticity of the particle foam molding, for example by clamping the soft foam plate to a particle foam molding or by fastening it using undercut particle foam molding contours or flexible particle foam molding fixing elements.
Die erfindungsgemäßen schallabsorbierenden Schaumstoff-Formkörper können im Bausektor als Automobilteile oder als Maschinenbaukomponenten verwendet werden. Ein besonders interessantes Anwendungsbeispiel sind Kraftfahrzeug-Klimaanlagengehäuse.The sound-absorbing foam moldings according to the invention can be used in the construction sector as automotive parts or as mechanical engineering components. A particularly interesting application example is motor vehicle air conditioning housings.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29819991U DE29819991U1 (en) | 1998-11-09 | 1998-11-09 | Sound absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29819991U DE29819991U1 (en) | 1998-11-09 | 1998-11-09 | Sound absorption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29819991U1 true DE29819991U1 (en) | 1999-03-04 |
Family
ID=8065070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29819991U Expired - Lifetime DE29819991U1 (en) | 1998-11-09 | 1998-11-09 | Sound absorption system |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29819991U1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10054120A1 (en) * | 2000-10-31 | 2002-05-16 | Karl Bachl Gmbh & Co Kg | Insulation element, in particular for sound insulation of steep roofs, consists of two hard foam plates of different plastic materials on top of one another |
| FR2843120A1 (en) * | 2002-07-31 | 2004-02-06 | Plasto Sa | Polymer foam panel for sealing/soundproofing motor vehicles has thermoformed cavities filled with synthetic foam |
| EP1510408A1 (en) * | 2003-08-28 | 2005-03-02 | Basf Aktiengesellschaft | Lining for bonnets in motor-vehicles |
| WO2008145372A1 (en) * | 2007-06-01 | 2008-12-04 | Herbert Olbrich Gmbh & Co. Kg | Material combination |
| DE102009058548A1 (en) * | 2009-12-17 | 2011-06-22 | AKsys GmbH, 67547 | Sound protection wall for insulating and damping sound emissions of vehicle, has support element including surface that is covered with layer, which is made of open-porous organic foam material and provided around particle foam plate |
| DE102020210808A1 (en) | 2020-08-26 | 2022-03-03 | Volkswagen Aktiengesellschaft | Insert part for body components on vehicles, arrangement and vehicle |
-
1998
- 1998-11-09 DE DE29819991U patent/DE29819991U1/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10054120A1 (en) * | 2000-10-31 | 2002-05-16 | Karl Bachl Gmbh & Co Kg | Insulation element, in particular for sound insulation of steep roofs, consists of two hard foam plates of different plastic materials on top of one another |
| DE10054120B4 (en) * | 2000-10-31 | 2005-10-20 | Karl Bachl Gmbh & Co Kg | Aufsparrendämmelement |
| FR2843120A1 (en) * | 2002-07-31 | 2004-02-06 | Plasto Sa | Polymer foam panel for sealing/soundproofing motor vehicles has thermoformed cavities filled with synthetic foam |
| EP1510408A1 (en) * | 2003-08-28 | 2005-03-02 | Basf Aktiengesellschaft | Lining for bonnets in motor-vehicles |
| WO2008145372A1 (en) * | 2007-06-01 | 2008-12-04 | Herbert Olbrich Gmbh & Co. Kg | Material combination |
| DE102009058548A1 (en) * | 2009-12-17 | 2011-06-22 | AKsys GmbH, 67547 | Sound protection wall for insulating and damping sound emissions of vehicle, has support element including surface that is covered with layer, which is made of open-porous organic foam material and provided around particle foam plate |
| DE102020210808A1 (en) | 2020-08-26 | 2022-03-03 | Volkswagen Aktiengesellschaft | Insert part for body components on vehicles, arrangement and vehicle |
| DE102020210808B4 (en) | 2020-08-26 | 2022-05-05 | Volkswagen Aktiengesellschaft | Insert part for body components on vehicles, arrangement and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19990415 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20020312 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20050111 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20061117 |
|
| R081 | Change of applicant/patentee |
Owner name: BASF SE, DE Free format text: FORMER OWNER: BASF AG, 67063 LUDWIGSHAFEN, DE Effective date: 20080421 |
|
| R071 | Expiry of right |