EP2896038A1 - Mehrlagiger gelochter schallabsorber - Google Patents

Mehrlagiger gelochter schallabsorber

Info

Publication number
EP2896038A1
EP2896038A1 EP13762143.9A EP13762143A EP2896038A1 EP 2896038 A1 EP2896038 A1 EP 2896038A1 EP 13762143 A EP13762143 A EP 13762143A EP 2896038 A1 EP2896038 A1 EP 2896038A1
Authority
EP
European Patent Office
Prior art keywords
absorber
fibers
sound absorber
layer
plastic layer
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.)
Ceased
Application number
EP13762143.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Norbert Nicolai
Rod Morris-Kirby
Marco Schneider
Uwe Kaiser
Reimund Piatkowski
Volkmar Schulze
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.)
Adler Pelzer Holding GmbH
Original Assignee
HP Pelzer Holding GmbH
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 HP Pelzer Holding GmbH filed Critical HP Pelzer Holding GmbH
Publication of EP2896038A1 publication Critical patent/EP2896038A1/de
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B32B5/02—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
    • B32B5/024—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
    • B32B5/18—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
    • 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
    • B32B2262/02—Synthetic macromolecular 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
    • B32B2266/06—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
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • 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

Definitions

  • the invention relates to a multilayer perforated sound absorber with a microperforated plastic film and a thermoformable absorber which is a foam layer, a fiber fabric or a nonwoven fabric layer. Furthermore, the invention comprises a method for producing a corresponding sound absorber.
  • Absorbers are known which are covered on one side with a micro-perforated foil to a sound source.
  • the hole geometry, the distance between the holes and the open area of the film can influence the absorption.
  • such structures are especially known with a perforated metal foil and an absorber for the engine compartment.
  • a heat and sound insulating lining for the engine compartment of motor vehicles which is described in DE 101 43 167 AI, consists of a motor-side micro-perforated heat reflector, a thus in contact polyurethane foam layer on the engine side with a at 200 ° C, in particular soaked at 150 ° C for three weeks lasting temperature-durable thermosetting material and a thus in contact, the engine side facing away from the top layer.
  • microperforated films especially metal foils
  • US Pat. No. 7,838,125 B2 in which a specific embodiment of a microperforated metal foil is described.
  • the metal foil is deformed by needle punching in such a way that, opposite to the needle drop direction, a crater which is elevated in relation to the middle foil layer is formed, the lower edge of which flares out when the needle pierces.
  • DE 10 2004 053 751 A1 describes a trim part for a vehicle, in particular an underbody cladding.
  • This has a porous middle layer and at least one cover layer on each side, the porous middle layer being constructed to have acoustic transparency or acoustically absorbing effectiveness.
  • the acoustically absorbent porous middle layer can be covered on one or both sides with one or more acoustically transparent or absorbing cover layers.
  • an absorber and a micro-perforated polymer film are known for the area in the motor vehicle interior structures with an absorber and a micro-perforated polymer film are known.
  • EP 1 101 218 B1 describes a microperforated polymer film for use in a sound absorber formed with a polymer film of a defined thickness and a plurality of microperforations, the microperforations each having a narrowest diameter smaller than the film thickness and a widest diameter greater than 125% of the narrowest diameter.
  • microperforated plastic film with a defined hole geometry as a function of the film thickness.
  • perforating channels, columns or funnel-shaped type with variable diameters are described here.
  • the hole geometry, the number of holes and their spacing is a condition for a good acoustics, which is influenced by the sizes mentioned.
  • the object is to produce a component (sound absorber) with a thermoformable absorber and a micro-perforated film so that in a wide frequency range, but especially at low frequencies has a high absorption and partially increased insulation.
  • thermoformable absorber 3 thermoformable absorber 3 and a micro-perforated film 4, which are connected flat to each other, characterized in that
  • the micro-perforated film 4 of a two-layer provided with a defined hole geometry first higher-melting plastic layer and a second, in relation to the first plastic layer lower melting plastic layer, the low-melting plastic layer adjacent to the absorber 3 intermediate layer 2 of absorber components and the low-melting plastic includes and
  • the subject of the present invention is thus in particular a 3-layered sound absorber 1 made of a micro-perforated film (cover layer) 4 and a thermoformed absorber 3, which is constructed in such a way that a coupling between the two absorbers is achieved by the formation of an intermediate layer 2.
  • the frequency response of both types of absorber differs in principle. While the porous sound absorbers 3 have a broadband absorption effect increasing with frequency and thus can be used primarily for the absorption of medium and high frequencies, the micro-perforated films 4 preferably absorb in a narrow frequency range, the resonance region, which lies at medium or low frequencies. By a flow resistance spread over the film 4 results in an adjustable broadening of the absorption.
  • the micro-perforated film 4 preferably consists of or contains a plastic having a melting temperature (softening temperature) above the processing temperature such as polyamide, polyethylene terephthalate, polyetherimide, polysulfone, polyethersulfone, polyetheretherketone and a second plastic such as PE or PP Melting temperature (softening temperature) below the processing temperature (laminating temperature).
  • This lower-melting plastic serves as an adhesive, combines with particles of the absorber 3, forms a Intermediate layer 2 and changes the hole pattern and thus the acoustic and fluidic properties of the film 4th
  • the softening temperatures of the higher and lower melting plastic preferably differ by at least 30 ° K, in particular at least 100 ° K.
  • thermoformable absorber 3 consists in particular of a fiber fabric, a nonwoven fabric layer or foam. This can be carried out in one or more layers; and combinations of these materials.
  • the sound absorption layer 3 which is in contact with the aforementioned microperforated film 4 may, for example, comprise a foam layer which, in the context of the present invention, particularly preferably contains an open-pore PUR, melamine resin or high-density foam.
  • the fiber fabric or the nonwoven fabric layer as part of the sound absorber 1 according to the invention synthetic fibers, the polyester fibers, in particular PET, polyamide fibers, in particular nylon 6 and / or nylon 66; Polyolefin fibers, in particular PP and / or PE; Acrylic fibers and their fiber mixtures including bicomponent fibers and multicomponent fibers and / or mixtures of natural fibers, in particular shell mwoll-, hemp, coconut, kenaf, jute and / or sisal fibers containing the aforementioned synthetic fibers.
  • a coupling of all sound absorption effects is achieved in that between the high-melting plastic layer (cover layer) with defined hole profile 4 and a low-melting plastic layer with integrated
  • Absorber components of an intermediate layer 2 is formed, wherein a flow resistance ratio between the film 4 and the intermediate layer 2 on the one side and the absorber on the other side of 1: 3 to 1: 30 is present and the flow difference within the component is at least 20%.
  • a further embodiment of the present invention comprises a method for the production of a sound absorber by feeding a non-perforated PA / PE film onto a preformed nonwoven absorbent 3 placed in the laminating tool, consisting of binding and tearing fibers (BiCo, CO, WO, PET) and is laminated.
  • a non-perforated PA / PE film onto a preformed nonwoven absorbent 3 placed in the laminating tool, consisting of binding and tearing fibers (BiCo, CO, WO, PET) and is laminated.
  • the low-melting PE and the adjacent absorber layer 3 form an intermediate layer 2 consisting of absorber components and PE.
  • the perforation of the PA and the formed intermediate layer 2 takes place in a cooling / calibration tool, in which the PA half-facing mold half is provided with corresponding needles.
  • the perforation takes place in the direction of the nonwoven fabric absorber 3.
  • the needling (stitch) channel thus leads into the composite material inside, to the absorptive layer 3.
  • the thus given funnel gives the additional effect of a Helmholtz resonator.
  • the acoustic effect of a component 1 to be produced can be varied by the needle channel volume, the channel diameter and the channel length according to the desired conditions (number and arrangement of the perforations in the film 4).
  • the funnel-shaped design of the needle channel is shown in Fig. 1. This can be achieved in particular with a conically extending needling tool whose cone length preferably corresponds to a multiple of the thickness of the plastic film 4.
  • the deformation of the absorber 3 to the component takes place, for example, with the supply of heat, which can result in an integrated introduction of the film 4 by stretching and relaxation to considerable changes in the hole geometry and thus to the acoustic properties. Accordingly, preferably the absorber 3 is preformed thermally (in its final configuration) before the lamination process is initiated. Then the needling is done.
  • FIG. 2 shows an example of a structure of a sound absorber 1 according to the invention.
  • a 65 ⁇ PA / PE film 4 with 30 g / m2 PE layer, perforated with 227 E / cm 2 and a hole diameter of 0.07 +/- 0.05 mm was on a pre-formed in the laminating tool Faservliesabsorber 3, consisting from binding and tear fibers (BiCo, CO, WO, PET), closed and laminated.
  • the laminating mold temperature was 135 ° C, the laminating time 55s.
  • an intermediate layer 2 consisting of absorber components and PE was formed by the low-melting PE and the adjacent absorber layer.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
EP13762143.9A 2012-09-17 2013-09-16 Mehrlagiger gelochter schallabsorber Ceased EP2896038A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012216500.2A DE102012216500A1 (de) 2012-09-17 2012-09-17 Mehrlagiger gelochter Schallabsorber
PCT/EP2013/069131 WO2014041163A1 (de) 2012-09-17 2013-09-16 Mehrlagiger gelochter schallabsorber

Publications (1)

Publication Number Publication Date
EP2896038A1 true EP2896038A1 (de) 2015-07-22

Family

ID=49165762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13762143.9A Ceased EP2896038A1 (de) 2012-09-17 2013-09-16 Mehrlagiger gelochter schallabsorber

Country Status (11)

Country Link
US (1) US9702141B2 (enrdf_load_stackoverflow)
EP (1) EP2896038A1 (enrdf_load_stackoverflow)
JP (1) JP6120388B2 (enrdf_load_stackoverflow)
KR (1) KR102070712B1 (enrdf_load_stackoverflow)
CN (1) CN104704555B (enrdf_load_stackoverflow)
BR (1) BR112015005557B1 (enrdf_load_stackoverflow)
DE (1) DE102012216500A1 (enrdf_load_stackoverflow)
IN (1) IN2015DN01978A (enrdf_load_stackoverflow)
MX (1) MX342149B (enrdf_load_stackoverflow)
RU (1) RU2639594C2 (enrdf_load_stackoverflow)
WO (1) WO2014041163A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014041163A1 (de) 2012-09-17 2014-03-20 Hp Pelzer Holding Gmbh Mehrlagiger gelochter schallabsorber

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012004594U1 (de) * 2012-05-09 2013-08-12 Hp Pelzer Holding Gmbh Kraftfahrzeugteile
DE102012222000A1 (de) * 2012-11-30 2014-06-05 Hp Pelzer Holding Gmbh Herstellung wenigstens zweilagiger Bauteile
DE102015209105A1 (de) 2015-05-19 2016-11-24 Hp Pelzer Holding Gmbh Leichtes akustisches Bauteil
CN107090921A (zh) * 2016-02-18 2017-08-25 北京市劳动保护科学研究所 一种复合吸声结构及其制作方法
US20170291681A1 (en) * 2016-04-08 2017-10-12 Harman International Industries, Incorporated Composite insulation for reducing broadband aircraft noise
RU2754697C2 (ru) * 2017-03-03 2021-09-06 Государственное научное учреждение "Институт механики металлополимерных систем имени В.А. Белого Национальной академии наук Беларуси" (ИММС НАН Беларуси) Звукопоглощающая слоистая конструкция
DE102017002552A1 (de) 2017-03-17 2018-09-20 Carl Freudenberg Kg Schallabsorbierendes Textilkomposit
CN107025904A (zh) * 2017-05-16 2017-08-08 姚斌斌 吸声装置及其系统
JP6769423B2 (ja) * 2017-11-01 2020-10-14 王子ホールディングス株式会社 吸音材
AT521782B1 (de) * 2019-01-10 2020-07-15 Greiner Perfoam Gmbh Kfz-Formteil
WO2020178427A1 (de) * 2019-03-07 2020-09-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Schallabsorber, bauwerk und verwendung eines schallabsorbers
DE102019208743A1 (de) * 2019-06-17 2020-12-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Schallabsorber
DE102019203112A1 (de) * 2019-03-07 2020-09-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Schallabsorber
DE102019110494A1 (de) * 2019-04-23 2020-10-29 Adler Pelzer Holding Gmbh Absorptiver vernadelter Schichtverbund
DE102020110433B3 (de) * 2020-04-16 2021-07-22 Adler Pelzer Holding Gmbh Vollumschließende Motor- oder Aggregate-Kapsel eines Kraftfahrzeugs mit einer Luftpolsterfolie
CN111716859A (zh) * 2020-06-12 2020-09-29 广西德福特科技有限公司 一种三组份吸音棉及其制备方法
KR102219220B1 (ko) * 2020-10-21 2021-02-23 박서경 케나프 부직포를 이용한 준불연 흡음 패널 및 이의 제조 방법
DE102021101921A1 (de) * 2021-01-28 2022-07-28 Adler Pelzer Holding Gmbh Schallisolierung mit mehrschichtiger Faser-Isolation; und Verfahren zu deren Herstellung
DE102022131500A1 (de) 2022-11-29 2024-05-29 Bayerische Motoren Werke Aktiengesellschaft Unterbodenverkleidung für einen Kraftwagen, Radhaus für einen Kraftwagen sowie Kraftwagen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141193A2 (de) * 2006-06-09 2007-12-13 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Akustisch und thermisch wirkende isolation
EP2279859A1 (de) * 2009-07-10 2011-02-02 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Akustisch wirksame Dach-Versteifungs-Dämpfungs-Platte und Verfahren zu ihrer Herstellung

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3445656A1 (de) * 1984-12-14 1986-06-26 Irbit Research + Consulting Ag, Freiburg/Fribourg Schaumstoff-schallabsorptionskoerper
DE4422585C1 (de) * 1994-06-28 1995-10-05 Freudenberg Carl Fa Luftschallabsorbierendes Formteil und Verfahren zu seiner Herstellung
WO1998018656A1 (de) * 1996-10-29 1998-05-07 Rieter Automotive (International) Ag Ultraleichter multifunktionaler, schallisolierender bausatz
JP3367637B2 (ja) * 1997-10-16 2003-01-14 日産自動車株式会社 自動車室内の遮音構造
US6617002B2 (en) 1998-07-24 2003-09-09 Minnesota Mining And Manufacturing Company Microperforated polymeric film for sound absorption and sound absorber using same
DE19856254A1 (de) * 1998-12-07 2000-06-08 Freudenberg Carl Fa Klebstoffpulver
US6345688B1 (en) * 1999-11-23 2002-02-12 Johnson Controls Technology Company Method and apparatus for absorbing sound
US20020117351A1 (en) * 2001-02-27 2002-08-29 Hung-Lieh Chen Sound-eliminating board
DE10143167A1 (de) 2001-09-04 2003-03-27 Hp Chem Pelzer Res & Dev Ltd Wärme- und schalldämmende Verkleidung für den Motorraum von Kraftfahrzeugen
JP3613727B2 (ja) * 2001-09-06 2005-01-26 東洋紡績株式会社 成形性に優れた吸音材
US20040023587A1 (en) * 2002-08-02 2004-02-05 C.T.A. Acoustics Acoustical insulation laminate with polyolefin layer and process for making
JP2004122545A (ja) 2002-10-01 2004-04-22 Sekisui Chem Co Ltd 熱成形性芯材及びこれを用いた自動車用内装材
DE10251327A1 (de) 2002-11-05 2004-05-19 Hp-Chemie Pelzer Research And Development Ltd. Verfahren zum Direkthinterschäumen von Absorber-System
EP1428656A1 (en) * 2002-12-09 2004-06-16 Rieter Technologies A.G. Ultralight trim composite
DE10324257B3 (de) * 2003-05-28 2004-09-30 Clion Ireland Ltd., Newton Schallabsorber, Verfahren zur Herstellung, und Verwendung
DE20316050U1 (de) 2003-10-20 2003-12-18 Sevex Ag Schallabsorbierender Hitzeschild
DE102004053751A1 (de) * 2004-11-06 2006-05-11 Seeber Ag & Co. Kg Akustik-Verkleidungsteil für ein Fahrzeug
US20060112146A1 (en) 2004-11-22 2006-05-25 Nec Laboratories America, Inc. Systems and methods for data analysis and/or knowledge management
JP4361036B2 (ja) * 2005-07-13 2009-11-11 豊和繊維工業株式会社 車両用防音材
US20070137926A1 (en) * 2005-12-15 2007-06-21 Lear Corporation Acoustical component for enhancing sound absorption properties while preserving barrier performance in a vehicle interior
JP2007291834A (ja) * 2006-03-31 2007-11-08 Yamaha Corp 吸音パネル及び吸音パネルの製造方法
DE202006009245U1 (de) * 2006-06-09 2007-10-11 Carcoustics Tech Center Gmbh Luftschall absorbierende Motorraumverkleidung für Kraftfahrzeuge, insbesondere Motorhaubenverkleidung
DE102007020832B4 (de) * 2007-05-02 2009-02-26 Bayer Materialscience Ag Leichte, schallisolierende Verkleidung für ein Karosserieteil eines Kraftfahrzeuges und Verfahren zu deren Herstellung
US7838125B2 (en) 2007-12-14 2010-11-23 Pelzer Acoustic Products, Llc Microperforated metal foil
CN102057421B (zh) * 2008-04-14 2014-12-10 3M创新有限公司 多层吸声片材
KR101658628B1 (ko) * 2008-12-04 2016-09-22 제피로스, 인크. 단섬유들로부터 만들어지는 부직포
DE102009007891A1 (de) 2009-02-07 2010-08-12 Willsingh Wilson Resonanz-Schallabsorber in mehrschichtiger Ausführung
US20100213002A1 (en) * 2009-02-26 2010-08-26 Honeywell International Inc. Fibrous materials, noise suppression materials, and methods of manufacturing noise suppression materials
DE102010002049B4 (de) * 2010-02-17 2019-06-27 Röchling Automotive AG & Co. KG Akustisch absorbierend wirksames KFZ-Innenverkleidungsbauteil
NZ606959A (en) * 2010-07-13 2014-05-30 Bellmax Acoustic Pty Ltd An acoustic panel
DE102010035431A1 (de) * 2010-08-26 2012-03-01 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Breitbandiger Schallabsorber
DE102012216500A1 (de) 2012-09-17 2014-03-20 Hp Pelzer Holding Gmbh Mehrlagiger gelochter Schallabsorber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141193A2 (de) * 2006-06-09 2007-12-13 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Akustisch und thermisch wirkende isolation
EP2279859A1 (de) * 2009-07-10 2011-02-02 Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung Akustisch wirksame Dach-Versteifungs-Dämpfungs-Platte und Verfahren zu ihrer Herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014041163A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014041163A1 (de) 2012-09-17 2014-03-20 Hp Pelzer Holding Gmbh Mehrlagiger gelochter schallabsorber

Also Published As

Publication number Publication date
US20150267401A1 (en) 2015-09-24
BR112015005557B1 (pt) 2021-12-07
BR112015005557A2 (pt) 2017-07-04
CN104704555A (zh) 2015-06-10
JP2015534113A (ja) 2015-11-26
DE102012216500A1 (de) 2014-03-20
JP6120388B2 (ja) 2017-04-26
KR20150056774A (ko) 2015-05-27
US9702141B2 (en) 2017-07-11
MX342149B (es) 2016-09-15
KR102070712B1 (ko) 2020-01-29
IN2015DN01978A (enrdf_load_stackoverflow) 2015-08-14
RU2015113976A (ru) 2016-11-10
CN104704555B (zh) 2017-08-18
RU2639594C2 (ru) 2017-12-21
WO2014041163A1 (de) 2014-03-20
MX2015003027A (es) 2015-06-10

Similar Documents

Publication Publication Date Title
EP2896038A1 (de) Mehrlagiger gelochter schallabsorber
EP1058618B1 (de) Schallabsorbierendes dünnschichtlaminat
DE60317658T2 (de) Polstermaterial mit dichtegradient und verfahren zu dessen herstellung
EP1562743B1 (de) Schallisolierender hitzeschutzschild
DE10347084B4 (de) Abstimmbare, den Schall absorbierende, und die Luft filternde Dämpfungseinrichtung und Herstellungsverfahren
EP3023308B1 (de) Innenverkleidungsteil und verfahren zu seiner herstellung
EP3423269B1 (de) Mehrlagiger akustik- und/oder versteifungsvliesstoff
DE102015212719A1 (de) Mehrlagiges, geräuschabsorbierendes, geräuschdämmendes und luftdurchlässiges Material
DE102013104715A1 (de) Hinterschäumbares Akustikelement eines Kraftfahrzeugkarosserieverkleidungsbauteils
EP2251858A1 (de) Luftschall isolierender Materialaufbau
DE112016001741T5 (de) Schalldämmmatte mit flüssig aufgebrachter, sprühbarer Beschichtung und Verfahren zu deren Herstellung
EP3318401A1 (de) Hochabsorptives schallisolationskraftfahrzeugverkleidungselement sowie hochabsorptiv-schallisolationselement-herstellungsverfahren dazu
DE102012207365A1 (de) Mehrschichtiges Bauteil und Verfahren zur Herstellung desselben
WO2008046924A1 (de) Geformter artikel, vliesstoff sowie deren herstellung und verwendung
EP1903135A2 (de) Mehrlagiges Vliesverbundmaterial und Verfahren zur Herstellung eines mehrlagigen Vliesverbundmaterials
EP3931384B1 (de) Materialstruktur eines nadelvlieses
DE102005037572A1 (de) Verkleidungsteil, insbesondere Innenverkleidungs- oder Auskleidungsteil für Kraftfahrzeuge
EP4319976A1 (de) Schalldämmendes verbundbauteil mit wabenkern und herstellverfahren hierfür
DE102005016653B4 (de) Sandwichelement zur schallabsorbierenden Innenverkleidung von Verkehrsmitteln, insbesondere zur schallabsorbierenden Innenverkleidung von Rumpfzellen von Luftfahrzeugen
DE10317670A1 (de) Hohlkammerelement für Kraftfahrzeuge
DE102019110494A1 (de) Absorptiver vernadelter Schichtverbund
AT519010B1 (de) Kfz-Bauteil
DE4444505C2 (de) Selbstklebendes Verstärkungsmaterial, Verfahren zu seiner Herstellung und Verwendung zur Herstellung von Textilfaservliesen
DE102020125477A1 (de) Vernadelte Sandwich-Vliesstruktur, und Verfahren zu dessen Herstellung
DE20218350U1 (de) Material für ein akustisch wirksames Verkleidungselement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150227

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170327

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ADLER PELZER HOLDING GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ADLER PELZER HOLDING GMBH

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

APBK Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNE

APBN Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2E

APBR Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3E

APAF Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

APBT Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9E

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20250516