EP1946291A2 - Composant d'isolation phonique et procede pour le produire - Google Patents

Composant d'isolation phonique et procede pour le produire

Info

Publication number
EP1946291A2
EP1946291A2 EP06829003A EP06829003A EP1946291A2 EP 1946291 A2 EP1946291 A2 EP 1946291A2 EP 06829003 A EP06829003 A EP 06829003A EP 06829003 A EP06829003 A EP 06829003A EP 1946291 A2 EP1946291 A2 EP 1946291A2
Authority
EP
European Patent Office
Prior art keywords
nonwoven
layer
component
spray coating
polyurethane
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Withdrawn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
EP06829003A
Other languages
German (de)
English (en)
Inventor
Olaf Hessler
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.)
Ideal Automotive GmbH
Original Assignee
Ideal Automotive 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 Ideal Automotive GmbH filed Critical Ideal Automotive GmbH
Publication of EP1946291A2 publication Critical patent/EP1946291A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24636—Embodying mechanically interengaged strand[s], strand-portion[s] or strand-like strip[s] [e.g., weave, knit, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/25—Coating or impregnation absorbs sound
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/647—Including a foamed layer or component
    • Y10T442/652—Nonwoven fabric is coated, impregnated, or autogenously bonded

Definitions

  • the invention relates to a component for sound insulation, in particular in motor vehicles, and a method for its production.
  • heavy-layer films for sound insulation or damping in motor vehicles.
  • These heavy-layer foils are plastic membranes or foils having a heavy aggregate, for example barium sulphate. It is also known to form Bitumenbuchstoffplatten to body parts and hang up to effect an anti-drone effect.
  • the object of the invention is to provide a component for sound insulation, which is easy and quick to produce, in a simple manner reshaping and installable and also allows good sound insulation.
  • the component according to the invention for sound insulation consists of a known non-woven fabric, which has on one side a spray coating of a plastic.
  • the nonwoven fabric is, for example, a nonwoven fabric having a thickness of 5 to 20 mm, especially 10 mm, and has densities of 30 kg / m 2 to 120 kg / m 2 .
  • the nonwoven components can also be thicker.
  • the nonwoven components are, for example, fiber-flocked material in which PU flakes are still contained in the actual non-woven fabric.
  • thermoplastic bonded nonwoven component in addition to the usually contained mixed or natural fibers, such as wool or cotton, in addition deliberately a certain proportion of thermoplastic fibers is included, which produce a bond with appropriate temperature treatment by softening.
  • Suitable fibers for this purpose are, for example, polyolefin fibers, such as polyethylenes or polypropene fibers, or polyester fibers or polyamide fibers.
  • the component can also consist of pure natural fiber or pure synthetic fiber.
  • the spray coating is a continuous coating which is sprayed on and made of a thermoplastic or thermosetting plastic, in particular a polyurethane, which may be hard or soft.
  • a thermoplastic or thermosetting plastic in particular a polyurethane, which may be hard or soft.
  • the desired hardness is very easily adjustable in the polyurethane on the degree of crosslinking.
  • the interface or the layer is here open and permeable, so that there is a breathability, with defined flow resistance.
  • the basis weight of the sprayed layer may be from 50 g / m 2 upwards, the spray coating, if is particularly thin, consists of a polyurethane and with increasing coating thickness on the one hand more material is applied. On the other hand, it is possible to additionally provide the plastic with foaming agents and thus to produce a thin foamed layer. As a result, a cellulency of the structure of the spray coating is achieved.
  • the proportion of the foaming agent can be adapted to a desired property, in particular to a required insulating effect or absorption effect.
  • the spray coating with existing technologies is very easy and inexpensive to apply.
  • even very thin layer thicknesses of a sprayed on thermoplastic material and in particular of a polyurethane give excellent sound insulation properties.
  • the coating depending on the layer thickness, can be formed via a foaming agent with a cellular structure and in particular with an open-cell structure.
  • FIG. 1 is a highly schematic representation of a nonwoven component with a nonwoven area and a spray coating
  • Figure 2 a nonwoven component according to claim 1, wherein the spray coating is foamed
  • Figure 3 different materials for nonwoven fabric components according to the invention with different absorption behavior.
  • the component 1 according to the invention has a nonwoven component 2 and a spray coating 3.
  • the spray coating 3 is sprayed onto a surface 4 of the nonwoven component 2 and has basis weights of 50 to 1200 g / m 2 .
  • the spray coating 3 is preferably made of polyurethane whose hardness is adjusted via the degree of crosslinking.
  • the surface 4, on which the coating is sprayed, or the spray coating 3 itself, may have or form a contoured, for example, knobbed, ribbed or corrugated surface.
  • the polyurethane spray coating is designed as an open-cell, foamed spray coating 3, wherein the open-cell structure is adjusted by foaming agent in the PU material to be sprayed on.
  • the nonwoven member is a nonwoven member which may be made in the known manners and thus may be a random fiber nonwoven, a needle punch or a thermobonded nonwoven.
  • it may be a thermoplastic bonded nonwoven fabric as a fiber flake nonwoven component or as a ther- moplastic-bonded nonwoven with a certain proportion of thermoplastic fibers.
  • the density of the fiber fleece is variable and can also be adjusted via the PU flake content.
  • the density of the nonwoven fabric is, for example, 30 to 150 kg / m 3 .
  • the spray coating is open-celled and / or open-pored due to its thickness and permeable to air.
  • the basis weight of the spray coating is between 50 and 1200 g / m 2, depending on the application. An influence on this also has the surface, in surface enlarging measures, such as a knob surface or a wave or otherwise contoured surface of the nonwoven component, of course, also increases the weight.
  • the absorption curve indicated by A is the absorption curve of a nonwoven fabric member having a density of 90 kg / m 3 and a thickness of 10 mm.
  • the curve labeled B indicates a minimum requirement.
  • the dot-dash line C corresponds to a component according to the invention with a spray coating which has a basis weight of 800 g / m 2
  • the curve D corresponds to a coating having a density or a weight per unit area of 400 g / m 2 .
  • the sprayed surface 4 may be formed with a contour before or after spraying.
  • a contour with cams or knob-like projections is conceivable.
  • corrugated or wavy contours may also be possible.
  • a diamond-like or waffle pattern-like contouring of the surface is possible.
  • the opposite surface 5 of the nonwoven component 2 may also be provided with a corresponding contouring.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

La présente invention concerne un composant destiné à l'isolation phonique et notamment à l'isolation phonique dans des automobiles. Ce composant comprend une première couche qui est constituée d'un matériau à base de non-tissé et qui est conçue sous forme de nappe plane, ainsi que deux surfaces opposées (4, 5). Un revêtement mince appliqué par pulvérisation (3) se trouve sur une des surfaces extérieures (4, 5) du non-tissé (2). Ce revêtement est constitué d'une matière thermodurcissable, telle que du polyuréthane, et/ou de matières thermoplastiques. Cette invention concerne également un procédé pour produire ce composant.
EP06829003A 2005-11-11 2006-11-10 Composant d'isolation phonique et procede pour le produire Withdrawn EP1946291A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510053946 DE102005053946B3 (de) 2005-11-11 2005-11-11 Bauteil für die Schallisolation und Verfahren zu seiner Herstellung
PCT/EP2006/010817 WO2007054346A2 (fr) 2005-11-11 2006-11-10 Composant d'isolation phonique et procede pour le produire

Publications (1)

Publication Number Publication Date
EP1946291A2 true EP1946291A2 (fr) 2008-07-23

Family

ID=37852993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829003A Withdrawn EP1946291A2 (fr) 2005-11-11 2006-11-10 Composant d'isolation phonique et procede pour le produire

Country Status (4)

Country Link
US (1) US20100003466A1 (fr)
EP (1) EP1946291A2 (fr)
DE (1) DE102005053946B3 (fr)
WO (1) WO2007054346A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9538867B2 (en) 2012-01-20 2017-01-10 Basf Se Composite body and method of making the same
EP2626854B1 (fr) 2012-02-09 2015-07-22 Electrolux Home Products Corporation N.V. Composant isolé d'un appareil domestique, en particulier un lave-vaisselle et procédé de fabrication d'un tel composant
US20140000980A1 (en) * 2012-06-20 2014-01-02 International Automotive Components Group North America, Inc. Sound Attenuating Composite Articles And Methods Of Making Same
US9747883B2 (en) 2015-04-14 2017-08-29 Cadillac Products Automotive Company Acoustic insulator mat with liquid applied sprayable coating and method for making the same
DE102015015153B4 (de) * 2015-11-25 2019-10-17 Dräger Safety AG & Co. KGaA Verfahren zur Überprüfung einer Pumpeneinrichtung in einem Gasmessystem
US10607589B2 (en) 2016-11-29 2020-03-31 Milliken & Company Nonwoven composite
US20220315796A1 (en) * 2019-12-18 2022-10-06 Howa Co., Ltd. Soundproof body provided with sound insulating layer formed of urethane resin, and manufacturing method of sound insulating layer by application of raw material for urethane resin
EP3933207A1 (fr) * 2020-06-29 2022-01-05 Dürr Dental SE Ventilateur médical avec système d'isolation acoustique, en particulier pour usage dentaire
DE102020127588A1 (de) 2020-10-20 2022-04-21 Adler Pelzer Holding Gmbh Absorptive Schallisolierungen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447493A (en) * 1982-07-26 1984-05-08 Minnesota Mining And Manufacturing Company Vibration-damping constrained-layer constructions
DE3624427A1 (de) * 1986-07-18 1988-01-21 Stankiewicz Alois Dr Gmbh Adhaesives zerstoerungsfrei entfernbares isolationssystem
US6123171A (en) * 1999-02-24 2000-09-26 Mcnett; Christopher P. Acoustic panels having plural damping layers
DE10133425A1 (de) * 2001-07-10 2003-01-30 Hp Chem Pelzer Res & Dev Ltd Fahrzeug-Radhausauskleidung
US20030096079A1 (en) * 2001-11-21 2003-05-22 Anthony Messina Sound attenuating/absorbing laminates and methods of making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007054346A2 *

Also Published As

Publication number Publication date
DE102005053946B3 (de) 2007-04-05
WO2007054346A3 (fr) 2007-09-27
WO2007054346A2 (fr) 2007-05-18
US20100003466A1 (en) 2010-01-07

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