WO2009039900A1 - Feutre acoustique pour éléments perforés de toit - Google Patents

Feutre acoustique pour éléments perforés de toit Download PDF

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Publication number
WO2009039900A1
WO2009039900A1 PCT/EP2008/003759 EP2008003759W WO2009039900A1 WO 2009039900 A1 WO2009039900 A1 WO 2009039900A1 EP 2008003759 W EP2008003759 W EP 2008003759W WO 2009039900 A1 WO2009039900 A1 WO 2009039900A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
acoustic
value
layer
layer according
Prior art date
Application number
PCT/EP2008/003759
Other languages
German (de)
English (en)
Inventor
Holger Schilling
Jochen Bechtum
Gerhard Stuppy
Günter Frey
Original Assignee
Carl Freudenberg Kg
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 Carl Freudenberg Kg filed Critical Carl Freudenberg Kg
Priority to US12/678,026 priority Critical patent/US20100304109A1/en
Priority to EP08758443A priority patent/EP2191058B1/fr
Priority to CN2008801096220A priority patent/CN101809222B/zh
Priority to ES08758443T priority patent/ES2376506T3/es
Priority to BRPI0816874 priority patent/BRPI0816874A2/pt
Priority to AT08758443T priority patent/ATE538239T1/de
Priority to DK08758443.9T priority patent/DK2191058T3/da
Publication of WO2009039900A1 publication Critical patent/WO2009039900A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
    • D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
    • D06M11/71—Salts of phosphoric acids
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0478—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like of the tray type
    • E04B9/0485—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like of the tray type containing a filling element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres

Definitions

  • the invention relates to a layer for producing an acoustic nonwoven fabric.
  • the fire behavior test is no longer carried out in accordance with DIN 4102-1 ("fire shaft test"), but in accordance with DIN EN 13823.
  • DIN 4102-1 fire shaft test
  • DIN EN 13823 This standard describes a so-called “SBI test” ("single burning item” test) a complete ceiling element structure and defines the classification relevant parameters according to DIN EN 13501-1.
  • the test in accordance with DIN EN 13823 is increasingly aimed at assessing smoke release in the event of fire. The release of smoke is evaluated in stricter standards in DIN 13501-1 than before.
  • the acoustic nonwoven fabric should form a high acoustic efficiency, namely achieve a singular value ⁇ w of at least 0.75 from a sound absorption coefficient measurement according to EN ISO 354 or conversion to EN ISO 11654.
  • the acoustic non-woven fabric must not adversely affect hygiene, health and environmental aspects.
  • the invention is therefore based on the object to provide an acoustic nonwoven fabric that shows the least possible smoke development in case of fire after easy processing.
  • a flat layer with a basis weight of at most 45 g / m 2 comprises a fiber mixture which is present in a proportion of at most 30 g / m 2 , and a flame retardant which is present in a proportion of at most 10 g / m 2 .
  • the layer according to the invention is in a special way provided with an adhesive mass for arrangement in a metal ceiling element. Consequently, the object mentioned above is achieved.
  • the impregnating mixture could include diammonium hydrogen phosphate as a flame retardant which contains halogen and heavy metals and thus is environmentally friendly.
  • diammonium hydrogen phosphate as a flame retardant which contains halogen and heavy metals and thus is environmentally friendly.
  • other nitrogen-phosphorus-based flame retardants for example ammonium polyphosphates or nitrogen-containing phosphonic acid salts.
  • the fiber mixture could have fine-fiber or fibrillated cellulosic components. These components are used to tune the acoustic effectiveness of the situation.
  • the fiber mixture contains two different types of cellulose, which are matched with regard to their fineness.
  • finely ground synthetic pulps e.g. made of viscose, polyolefin or aramid fibers.
  • the fiber mixture could also comprise fibers of glass, which are present in a proportion of at most 10 g / m 2 . This proportion of glass fibers gives the sheet high structural stability and low thermal shrinkage. This is the location for an automated insertion into ceiling elements. However, it is also conceivable to use other inorganic fibers, for example fibers of basalt or aluminum oxide. Finally, polyester fibers could also be used.
  • the fiber blend may be pre-bonded with a binder based on acrylate with a proportion of less than 5 g / m 2.
  • the pre-binding gives the layer sufficient stability to homogeneously introduce an impregnating mixture.
  • the pre-binding takes place by means of a low-formaldehyde acrylate binder.
  • increased requirements are met in terms of the formaldehyde content of the situation according to DIN EN 13964 (formaldehyde class "E1").
  • acoustic nonwoven fabric for metal ceilings having a basis weight of less than 60 g / m 2 could have a layer of the type described herein and an adhesive mass wherein the adhesive mass is present at less than 15 g / m 2 .
  • the adhesive composition makes it possible to fix the acoustic nonwoven fabric under moderate heating in a metal ceiling element, without damaging components of the ceiling element, such as a lacquer layer.
  • the adhesive composition consists of a thermoplastic, largely amorphous polyester, copolyester or copolyamide having a melting point below 100 0 C.
  • the acoustic nonwoven fabric could have a singular value ⁇ w of at least 0.75, the single value being obtained according to a sound absorption coefficient measurement according to EN ISO 354 and after conversion according to EN ISO 11654. Such an acoustic nonwoven absorbs sound particularly well.
  • An arrangement comprising a layer or an acoustic nonwoven fabric of the type described here and an unpainted perforated metal ceiling element could, in a measurement according to DIN EN 13823, have an SMOGRA value of at most 30 m 2 / s 2 and a TSP (600s) value of show at most 50 m 2 .
  • Such an arrangement is suitable not only for sound insulation, but also for fire protection in particular.
  • Fig. A diagram showing the by testing according to DIN EN
  • the sole FIGURE is a diagram comparing a ceiling element construction with a sample of a prior art acoustic nonwoven fabric having a ceiling element construction with a sample of an acoustic nonwoven fabric according to the present invention. To do this:
  • the SPRav curves or the individual SPRa V (t) values represent the current smoke development of the samples at time t of the measurement (resp. within a differential time interval [t, t-3s]).
  • An SPRav value represents the quotient of a flue gas volume flow in [m 3 / s] and the length in [m] of the light path through the tube of a photometric measuring device, resulting in the unit [m 2 / s].
  • TSP curves or the individual TSP (t) values represent the total smoke development of the samples up to time t of the measurement.
  • a TSP (t) value corresponds to the sum of the individual SPRav (t) values in the time interval from the beginning of the measurement to the time t or corresponds to the associated area under the SPR curve.
  • a TSP value represents the product of a sum of SPR 3 V values in [m 2 / s] and the associated time interval in [s], resulting in the unit [m 2 ].
  • the SPRav or TSP values of a sample within the time window from 300 s to 900 s are measured or used for the evaluation. Therefore, the time axis is scaled from 300 s to 900 s. The zero point of the actual measurement is therefore 300 s based on the entire test duration.
  • the SMOGRA values represent the maxima of the quotients from the SPRa V (t) values of the samples and the associated times t of the measurement. They characterize, to some extent, the slopes of the SPRav curves at the beginning of the measurement ("slope triangles").
  • the SMOGRA value represents the quotient of an SPRa V (t) value in [m 2 / s] and the associated time t in [s], resulting in the unit [nrvVs 2 ].
  • a quotient of an SPRav (t) value and the associated time t of the measurement is to be regarded as 0 by definition if the following boundary conditions are fulfilled for the determination of the SMOGRA value:
  • the SPRav (t) value is less than or equal to 0.1 m 2 / s, or
  • the SMOGRA value and the TSP (600s) value are decisive parameters for determining a "smoke class" (s1, s2 or s3).
  • the following limits for the abovementioned smoke-relevant parameters must be observed: SMOGRA value smaller or equal to 30 m 2 / s 2 and TSP (600s) value less than or equal to 50 m 2 .
  • Measurements of the type of ceiling element structures described here demonstrate that a sample of the prior art acoustic nonwoven fabric provides an SMOGRA value of about 30 m 2 / s 2 and a TSP (600s) value of about 40 m 2 . This is shown in the diagram of the single FIG.
  • a sample of the acoustic nonwoven fabric according to the invention shows only an SMOGRA value of about 15 m 2 / s 2 and a TSP (600s) value of about 30 m 2 , ie an SMOGRA value reduced by about 50% and a reduced by about 25% TSP (600s) value.
  • SMOGRA values of at best approx. 40 nrvVs 2 or TSP (600s) values of at best approx. 55 nrvVs 2 result for standard ceiling element structures with a coating and an acoustic nonwoven fabric according to the prior art. These high values prevent a "non-combustible" classification "A2 / s1 / d ⁇ " according to DIN EN 13501-1.
  • SMOGRA values of only about 25 m 2 / s 2 or TSP (600s) values of only about 45 m 2 / s 2 result . These values allow a "non-combustible" classification "A2 / s1 / d ⁇ " according to DIN EN 13501-1.
  • a prior art acoustic nonwoven fabric consists of a ply and an adhesive.
  • the weight per unit area is 63 g / m 2 .
  • the basis weight of the layer is 48 g / m 2 and the weight per unit area of the adhesive mass is 15 g / m 2 .
  • the sheet has a fiber blend of pulp fibers and glass fibers.
  • the fiber mixture contributes with a total of 25 g / m 2 to the basis weight of the situation.
  • the layer furthermore has a fiber binding of acrylate binder with a basis weight contribution of 4 g / m 2 .
  • the layer also has an impregnating mixture with a flame retardant, which makes up a basis weight contribution of 14.5 g / m 2 .
  • the impregnation mixture also contains a colorant of carbon black and an ethyl vinyl alcohol binder, which together make up a basis weight contribution of 4.5 g / m 2 .
  • the adhesive consists of epsilon - polycaprolactone.
  • An acoustic fleece according to the invention consists of a layer and an adhesive.
  • the basis weight is 54 g / m 2 in total.
  • the basis weight of the layer is 42 g / m 2 and the basis weight of the adhesive mass 12 g / m 2 .
  • the sheet has a fiber blend of fibers of two types of pulp and glass fibers.
  • the fiber mixture contributes with a total of 26 g / m 2 Basis weight of the situation at.
  • the fibers of pulp account for 20 g / m 2 of the basis weight of the layer, the glass fibers 6 g / m 2 .
  • the layer furthermore has a fiber binding of acrylate binder with a basis weight contribution of 4 g / m 2 .
  • the layer also has an impregnating mixture with a flame retardant, which constitutes a basis weight contribution of 7.5 g / m 2 .
  • the impregnation mixture also contains a colorant of carbon black and an ethyl vinyl alcohol binder, which together make up a basis weight contribution of 4.5 g / m 2 .
  • the adhesive used was epsilon-polycaprolactone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Building Environments (AREA)
  • Nonwoven Fabrics (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

Une couche destinée à être utilisée dans un toit métallique, qui présente un poids par unité de surface d'au plus 45 g/m², un mélange de fibres qui représente une proportion d'au plus 30 g/m² et un agent d'ignifugation qui présente une proportion d'au plus 10 g/m² résout le problème qui consiste à créer un feutre acoustique qui, après un traitement sans problème, dégage aussi peu de fumée que possible en cas d'incendie.
PCT/EP2008/003759 2007-09-19 2008-05-09 Feutre acoustique pour éléments perforés de toit WO2009039900A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US12/678,026 US20100304109A1 (en) 2007-09-19 2008-05-09 Acoustic nonwoven fabric for perforated ceiling elements
EP08758443A EP2191058B1 (fr) 2007-09-19 2008-05-09 Feutre acoustique pour éléments de toit perforés
CN2008801096220A CN101809222B (zh) 2007-09-19 2008-05-09 用于有孔的天花板元件的吸音非织造织物
ES08758443T ES2376506T3 (es) 2007-09-19 2008-05-09 Material no tejido acústico para elementos de techo perforados.
BRPI0816874 BRPI0816874A2 (pt) 2007-09-19 2008-05-09 Material não-tecido acústico para elementos de cobertura perfurados
AT08758443T ATE538239T1 (de) 2007-09-19 2008-05-09 Akustikvliesstoff für perforierte deckenelemente
DK08758443.9T DK2191058T3 (da) 2007-09-19 2008-05-09 Akustisk uvævet stof til perforerede loftselementer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007044906.4 2007-09-19
DE102007044906A DE102007044906A1 (de) 2007-09-19 2007-09-19 Akustikvliesstoff für perforierte Deckenelemente

Publications (1)

Publication Number Publication Date
WO2009039900A1 true WO2009039900A1 (fr) 2009-04-02

Family

ID=40254559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/003759 WO2009039900A1 (fr) 2007-09-19 2008-05-09 Feutre acoustique pour éléments perforés de toit

Country Status (10)

Country Link
US (1) US20100304109A1 (fr)
EP (1) EP2191058B1 (fr)
CN (1) CN101809222B (fr)
AT (1) ATE538239T1 (fr)
BR (1) BRPI0816874A2 (fr)
DE (1) DE102007044906A1 (fr)
DK (1) DK2191058T3 (fr)
ES (1) ES2376506T3 (fr)
RU (1) RU2447240C2 (fr)
WO (1) WO2009039900A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016118587A1 (fr) * 2015-01-20 2016-07-28 Zephyros, Inc. Matériaux absorbants acoustiques basés sur des non-tissés
US10113322B2 (en) 2014-12-08 2018-10-30 Zephyros, Inc. Vertically lapped fibrous flooring
US10460715B2 (en) 2015-01-12 2019-10-29 Zephyros, Inc. Acoustic floor underlay system
US11541626B2 (en) 2015-05-20 2023-01-03 Zephyros, Inc. Multi-impedance composite

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105525440A (zh) * 2016-01-26 2016-04-27 芜湖环瑞汽车内饰件有限公司 一种阻燃吸音棉及其制备方法
DE102018120713A1 (de) 2018-08-24 2020-02-27 Carl Freudenberg Kg Wärmetransportmaterial mit guten Schallabsorptionseigenschaften
KR102597641B1 (ko) * 2020-05-29 2023-11-06 주식회사 젠픽스 흡음용 불연 천장재 및 그 제조 방법

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE2947607A1 (de) * 1979-11-26 1981-05-27 Fa. Carl Freudenberg, 6940 Weinheim Luftschallschluckende verkleidung fuer eine wand oder decke
US20060046594A1 (en) * 2004-08-30 2006-03-02 David Starrett Flame retardant sound dampening appliance insulation

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AU6552094A (en) * 1993-04-07 1994-10-24 Rexam Industries Corporation Method of forming laminated fire resistant flexible sheet material and resulting product
DE4420613C1 (de) * 1994-06-13 1995-08-10 Freudenberg Carl Fa Durchbrandblocker für Flugzeugrümpfe
US5910367A (en) * 1997-07-16 1999-06-08 Boricel Corporation Enhanced cellulose loose-fill insulation
DK1203127T3 (da) * 1999-08-12 2007-02-12 Hunter Douglas Loftssystem med udskiftelige paneler
CN1924245A (zh) * 2000-04-24 2007-03-07 荷兰亨特工业有限公司 可压缩结构板
US20050211500A1 (en) * 2004-03-26 2005-09-29 Wendt Alan C Fibrous faced ceiling panel
JP2006047628A (ja) * 2004-08-04 2006-02-16 Toyobo Co Ltd 吸音断熱材
JP2006144159A (ja) * 2004-11-18 2006-06-08 Toyobo Co Ltd 家電製品用温度調整不織布吸音シート材
JP2006144160A (ja) * 2004-11-18 2006-06-08 Toyobo Co Ltd 家電製品用難燃性不織布吸音シート材

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947607A1 (de) * 1979-11-26 1981-05-27 Fa. Carl Freudenberg, 6940 Weinheim Luftschallschluckende verkleidung fuer eine wand oder decke
US20060046594A1 (en) * 2004-08-30 2006-03-02 David Starrett Flame retardant sound dampening appliance insulation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10113322B2 (en) 2014-12-08 2018-10-30 Zephyros, Inc. Vertically lapped fibrous flooring
US11542714B2 (en) 2014-12-08 2023-01-03 Zephyros, Inc. Vertically lapped fibrous flooring
US10460715B2 (en) 2015-01-12 2019-10-29 Zephyros, Inc. Acoustic floor underlay system
WO2016118587A1 (fr) * 2015-01-20 2016-07-28 Zephyros, Inc. Matériaux absorbants acoustiques basés sur des non-tissés
US10755686B2 (en) 2015-01-20 2020-08-25 Zephyros, Inc. Aluminized faced nonwoven materials
US11541626B2 (en) 2015-05-20 2023-01-03 Zephyros, Inc. Multi-impedance composite

Also Published As

Publication number Publication date
RU2010115335A (ru) 2011-12-10
CN101809222B (zh) 2013-01-02
US20100304109A1 (en) 2010-12-02
EP2191058B1 (fr) 2011-12-21
EP2191058A1 (fr) 2010-06-02
CN101809222A (zh) 2010-08-18
DK2191058T3 (da) 2012-02-27
BRPI0816874A2 (pt) 2015-03-17
DE102007044906A1 (de) 2009-04-09
RU2447240C2 (ru) 2012-04-10
ES2376506T3 (es) 2012-03-14
ATE538239T1 (de) 2012-01-15

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