WO2010057945A1 - Anti-noise panel - Google Patents

Anti-noise panel Download PDF

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Publication number
WO2010057945A1
WO2010057945A1 PCT/EP2009/065465 EP2009065465W WO2010057945A1 WO 2010057945 A1 WO2010057945 A1 WO 2010057945A1 EP 2009065465 W EP2009065465 W EP 2009065465W WO 2010057945 A1 WO2010057945 A1 WO 2010057945A1
Authority
WO
WIPO (PCT)
Prior art keywords
noise
damper
noise panel
panel
front shell
Prior art date
Application number
PCT/EP2009/065465
Other languages
English (en)
French (fr)
Inventor
Michele Angelico
Original Assignee
Michele Angelico
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 Michele Angelico filed Critical Michele Angelico
Priority to RU2011124919/03A priority Critical patent/RU2536907C2/ru
Priority to EP09774855A priority patent/EP2366050A1/en
Priority to BRPI0922059A priority patent/BRPI0922059A2/pt
Priority to US13/130,276 priority patent/US8579080B2/en
Priority to AU2009317263A priority patent/AU2009317263A1/en
Priority to CN200980146280.4A priority patent/CN102216530B/zh
Publication of WO2010057945A1 publication Critical patent/WO2010057945A1/en
Priority to ZA2011/04512A priority patent/ZA201104512B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0076—Cellular, e.g. as wall facing
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0023—Details, e.g. foundations
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0076—Cellular, e.g. as wall facing
    • E01F8/0082—Cellular, e.g. as wall facing with damping material
    • 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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E04B2001/8419—Acoustical cones or the like, e.g. for anechoic chambers
    • 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
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
    • 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
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442—Tray type elements
    • E04B2001/8447—Tray type elements with two facing trays

Definitions

  • the present invention relates an anti-noise panel which can be used, for example, as a traffic noise barrier along roads, highways and/or railways.
  • the panel according to the invention comprises a front shell and a rear shell, made of thermoplastic material, that are coupled together within which rubber elements of specifically designed shape and size are incorporated.
  • Said panel can be advantageously obtained by using recycled, injected thermoplastic material, that allows the resulting panel to be conveniently used when the wind causes strong impact, for example, along railway lines where the compression waves generated by trains traveling at high speed over time tend to disassemble the riveted aluminum/steel sound barriers currently in use.
  • STATE OF THE ART The construction features of the noise barriers currently in use do not satisfy today's requirements.
  • the types of barriers currently in use are typically made of the following materials: aggregate concrete, with vegetation or tire rubber granules there within; wood having a rock wool core; steel having a rock wool core; aluminum having a rock wool core; light alloy having a rock wool core; PMMA polymethylmethacrylate; polycarbonate; glass; fibre-reinforced polymer; composite materials/carbon fibre.
  • materials are used in function to market requirements, however it is not always possible to satisfy both aesthetic and noise reduction requirements.
  • Most noise barriers currently in use belong to the following types: steel having a rock wool core; aluminum having a rock wool core; wood having a rock wool core; PMMA polymethylmethacrylate.
  • Noise barriers currently in use are generally composed of a metal or wood casing having perforations for the passage of sound waves and a rock wool core whose function is the absorption of the sound energy, or more precisely the energy present in sound waves of a range of frequencies and plainly not all the frequency spectrum.
  • the barriers currently in use are easy to manufacture but with a low level of automation; the technologies are known and the materials are easy to obtain but are getting increasingly costly; some can be customized in order to blend into the surrounding environment but only within certain limits.
  • the barriers currently in use indeed have many disadvantages that can be summarized as follows: - Disadvantages regarding performances:
  • barriers that use rock wool on the inside are soon to be banned (in view of the Directives EN 1793-1 , ISO/R 354-1985 and DIN 52212), such barriers also have a limited life cycle.
  • atmospheric conditions, and especially precipitation containing dust and pollutants seep into the rock wool causing deterioration of its physical/chemical properties and reducing its volume by more than 30%. Said deterioration reduces the useful life of the barriers to 4-5 years; firstly there a loss of sound adsorption efficiency, and then the rock wool dust, which is very hazardous to health, is released into the atmosphere.
  • most of the noise barriers are installed near cities and built-up areas and in many cases they are located practically alongside houses and residential apartment buildings.
  • barriers are made of metal parts that are very costly (steel or aluminum) implies the recovery of said parts, which is a very difficult and expensive process because it involves separating the metal from the rock wool, which must then be disposed off.
  • the anti-noise panel of the present invention comprises a front shell and a rear shell, made of thermoplastic material, that are coupled together so as to form a sealed inner cavity, said panel incorporating dampers of specifically designed shape and size.
  • the resulting panel has a one- piece structure that has been proved to be an extremely valid noise reduction solution, whereas being very cost effective as well as more efficient and longer lasting than the known noise barriers.
  • the present invention further relates to a process for the production of said anti- noise panel which comprises the steps of: a) forming a front shell, optionally incorporating at least one damper, by injection moulding, b) forming a rear shell, optionally incorporating at least one damper, by injection moulding, and c) joining said front shell to said rear shell so that a inner cavity is formed, thus obtaining the anti-noise panel.
  • front shell A is meant a shell A exposed to the noise source.
  • FIG. 1 shows a view of the front shell (A) of an anti-noise panel according to a first embodiment of the invention
  • FIG. 2 shows a view of a rear shell (C) of the anti-noise panel according to said first embodiment of the invention
  • FIG. 5 shows a section view of the anti-noise panel of Figures 3 and 4;
  • FIG. 6 shows a view of the front shell (A) of an anti-noise panel according to a second embodiment of the invention
  • FIG. 7 shows a view of a rear shell (C) of the anti-noise panel according to said second embodiment of the invention
  • FIG. 10 shows a section view of the anti-noise panel of Figures 8 and 9;
  • FIG. 1 1 shows a diagram illustrating the phono-absorbing property of an anti-noise panel according to the invention over the frequency spectrum of the sound waves.
  • the subject of the present invention is therefore an anti-noise panel comprising a structure incorporating at least one damper and comprising a front shell made of plastic material and a rear shell made by the same or different plastic material, said front shell being joined to said rear shell so as to form a sealed inner cavity.
  • Figure 1 shows a first preferred embodiment of the present invention, wherein said panel 1 comprises a front shell A made of thermoplastic material and a rear shell C made by the same or different thermoplastic plastic material.
  • the front shell A and the rear shell C are joined together so as to form a one-piece structure having a sealed inner cavity IC.
  • the internal and external configurations of the panel 1 are designed by making reference to features of an anechoic chamber.
  • the inner cavity IC has a labyrinth configuration.
  • thermoplastic material a material capable of softening or fusing when heated and of hardening again when cooled.
  • exemplary thermoplastic materials include organic synthetic polymers, elastomers and compounds thereof.
  • Front shell and rear shell are preferably made of thermoplastic organic polymers or compounds thereof, that are rigid once thermoformed, such as polymethylmethacrylate (PMMA), Acrylonitrile Butadiene Styrene (ABS), polystyrene (PS), High Density Polyolefins, Polyvinyl Chloride (PVC), Chlorinated Polyvinyl Chloride (CPVC), Polyvinylidene Fluoride (PVDF), Polycarbonate (PC), Polyammide (PA), Polybutylenethereftalate (PBT), Polyethylenethereftalate (PET) or compounds thereof.
  • PMMA polymethylmethacrylate
  • ABS Acrylonitrile Butadiene Styrene
  • PS polystyrene
  • High Density Polyolefins Polyvinyl Chloride (PVC), Chlorinated Polyvinyl Chloride (CPVC), Polyvinylidene Fluoride (PVDF), Polycarbonate (PC), Polyammide (PA),
  • thermoplastic organic polymers are polymethylmethacrylate (PMMA), polypropylene (PP), mixtures thereof, or compounds of (ABS)-(PC).
  • the at least one damper of the anti-noise panel 1 is made of thermoplastic elastomers or compounds thereof. Said elastomers are used as having three essential characteristics: - capability to be stretched to moderate elongations and, upon the removal of stress, return to something close to its original shape,
  • thermoplastic elastomers are natural, semisynthetic or synthetic rubber or blends of said rubber with other thermoplastic elastomers, such as Styrene Ethylene Propylene Styrene (SEPS), Styrene Butadiene, Acrylonitrile Butadiene, or Styrene lsoprene Styrene (SIS).
  • SEPS Styrene Ethylene Propylene Styrene
  • SIS Styrene lsoprene Styrene
  • More preferred elastomers are synthetic rubber, such as ethylene propylene diene monomer (EPDM) or blends of the same with other thermoplastic elastomers.
  • EPDM ethylene propylene diene monomer
  • the shell A or the shell C or both can be made of recycled thermoplastic material.
  • the shells A and C of the anti-noise panel 1 are made of 100% recycled thermoplastic material, thus being very low-cost and environmental- friendly.
  • the above thermoplastic material can be blended with at least one inert filler.
  • the inert filler can be chosen from talc, calcium carbonate, glass spheres, graphite, carbon black, carbon fiber, glass fiber, wollastonite, mica, alumina, silica, and silicon carbide.
  • thermoplastic material according to the present invention can also include additives such as lubricants, flame retardants, heat and UV/Light stabilizers, dimensional stabilizers, waxes, colorants, foaming agents, impact modifiers, corrosion inhibitors, anti-static agents, plastic processing aids, anti-fog agents, anti-oxidants, anti-block, slip additives, mould release agents, or mould coating agents.
  • additives such as lubricants, flame retardants, heat and UV/Light stabilizers, dimensional stabilizers, waxes, colorants, foaming agents, impact modifiers, corrosion inhibitors, anti-static agents, plastic processing aids, anti-fog agents, anti-oxidants, anti-block, slip additives, mould release agents, or mould coating agents.
  • Figures 1 to 5 are relative to a first embodiment of the anti-noise panel 1 according to the invention having a plurality of dampers.
  • the anti-noise panel 1 comprises a first plurality of dampers B on the said front shell A.
  • this dampers B are also indicated with the expression "external dampers B” since they comprise an external part B1 which actually protrudes outwards of the sealed inner cavity IC.
  • Figure 1 and the section view of Figure 4 show a preferred shape of these dampers B according to which the external part B1 has a pyramidal shape having a square base.
  • the external dampers B comprises also an internal part B2 which protrudes inwards of the inner cavity IC.
  • the internal part B2 of the dampers B comprises lamellae 8 having different thickness and length that advantageously allow to absorb the energy deriving from sound waves of the relevant frequencies.
  • said lamellae 8 dissipate the energy absorbed by means of vibration at the tip 8B of said lamellae 8 which is tapered from the base 8C.
  • the anti noise-panel 1 also comprises a plurality of internal dampers D which are incorporated in the rear front shell C.
  • these dampers D are indicated with the phrase "internal dampers D" since they develop substantially inwards the sealed inner cavity IC as clearly shown, for example, in Figure 5.
  • the shape and size of the internal dampers D are different from those of the external dampers B incorporated in the front shell A.
  • the internal dampers D are inter- positioned between the external dampers B in such a way as to cover as much space as possible on the inside of the sealed inner cavity IC of the anti-noise panel 1.
  • the internal dampers D are smaller than and have a different shape with respect to that of the external dampers B, because they are intended to absorb the energy deriving from sound waves of different ranges of frequencies.
  • the internal dampers D are formed as cylindrical coaxial bodies 9 which develop inward of the sealed inner cavity IC.
  • Figure 1 1 is a diagram illustrating the phono-absorbing property Rw(dB) of the anti-noise panel 1 over the frequency spectrum of the sound waves. Said diagram has being plotted according to ISO 717-1 (in the range 100 to 3150 Hz) by detecting experimental measurements.
  • the broken line identifies the standard of ISO 717-1
  • the continuous line is the characteristic trend detected for the anti-noise panel 1 according to the invention.
  • the phono-absorbing property is advantageously greatly satisfactory over all the range of frequencies 100 up to 3150 Hz, being even conveniently higher than what required by the standard in the range of frequencies up to 300 Hz and in the range beyond 1600 Hz.
  • the front shell A and the rear shell C comprise stiffening ribs 7, in order to further improve the structural strength of the panel 1 especially against specially adverse circumstances of impacts or collisions.
  • these stiffening ribs 7 develop inwards of the inner cavity IC and along one or more internal sides of corresponding shell A, C.
  • the rear shell C also comprises cylindrical stiffening ribs 7B which develop inward the inner cavity IC substantially around corresponding internal dampers D.
  • the outer surface of the front shell A comprise two parallel rest surface 4 defined at opposite ends which can be used to simplify the assembly of the panel on suitable support structure 6 like that shown in Figure 5.
  • the outer surface of the rear shell C comprise two similar rest surface with the same purposes.
  • Figures 6 to 10 are relative to a second embodiment of the anti-noise panel 1 according to the present invention.
  • panel 1 comprises a first plurality of external dampers B incorporated on the front shell A and substantially equivalent to those relative to the first embodiment above describe.
  • the panel 1 comprises also a second plurality of external dampers BI always incorporated on the front shell A.
  • the dampers B of the first plurality and those BI of the second plurality are reciprocally spaced according to orthogonal directions.
  • Figures 8 and 9 show the configuration of these dampers BI of the second plurality which have a pyramid shape protruding inwards of the inner cavity IC.
  • the dampers BI are preferably made of thermoplastic material which can be equivalent or different to the material used for the front shell A.
  • the first plurality of dampers B is made of thermoplastic rubber and the second plurality of dampers BI is made of thermoplastic material.
  • the rear shell C does not incorporate any dampers.
  • Experimental measurement have proved that the performances of the panel 1 according to the second embodiment, even if not so excellent as in the case of the first embodiment, however are highly satisfactory and conveniently effective in adsorbing noise, i.e. by only using the first plurality of dampers B and the second plurality of dampers BI both incorporated on the front shell A.
  • the configuration of the shells A, C in the second embodiment is substantially equivalent to that of the first one. Consequently, common elements relative to both embodiments are indicated in Figures 6-10 by using the same references used in the Figures 1 -5.
  • the one-piece structure of the anti-noise panel of the present invention and the successful sound absorption proved above allow to overcome the drawbacks of the prior art panels.
  • the present invention relates to a process for manufacturing the anti-noise panel as above described, comprising the steps of a) forming a front shell A, optionally incorporating at least one damper, by injection moulding, b) forming a rear shell C, optionally incorporating at least one damper, by injection moulding, and c) joining said front shell A to said rear shell C so that a sealed inner cavity is formed, thus obtaining the anti-noise panel.
  • the above process allows the at least one damper to be incorporated in the front shell A and/or in the rear shell C during the manufacturing of the shell themselves.
  • the shells A, C can be simultaneously manufactured by means of a bi-injection moulding.
  • the front shell A and the rear shell C form a sealed inner cavity IC, once said shells are joined.
  • the shells A, C are preferably joined by fitting together the respective perimeter edge 1 1 , 21. More precisely, the front shell A comprises a first perimeter edge 1 1 which is preferably welded to a second perimeter edge 21 of the rear shell C (see for example Figure 5).
  • the first perimeter edge 1 1 has the same configuration, in terms of shape and size, of the second edge 21. In this manner, after joining the shell
  • the inner cavity IC directly results isolated and sealed and the resulting anti-noise panel is a one-piece structure.
  • the front shell A and the rear shell C are preferably joined by thermo-welding.
  • thermo-welding is preferably performed by means of a hot blade or alternatively by ultrasounds.
  • said at least one damper for intercepting the noise is not positioned after the said anti-noise panel is manufactured, thus being incorporating therein so as to form a one-piece anti-noise panel.
  • the said anti-noise panel is preferably produced in two automated stage. No screws nor rivets are preferably used for assembling the two shells, because assembly is conveniently achieved by means of an automated joining system.
  • no sound absorption materials are used, because noise reduction is successfully achieved by combining the anechoic chamber and the bi-injection moulding technology.
  • the technical solutions adopted for the anti-noise panel according to the present invention allow it to fully accomplish the object above indicated.
  • the panel is reliable and is manufactured at competitive costs.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Building Environments (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
PCT/EP2009/065465 2008-11-19 2009-11-19 Anti-noise panel WO2010057945A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
RU2011124919/03A RU2536907C2 (ru) 2008-11-19 2009-11-19 Шумопоглощающая панель
EP09774855A EP2366050A1 (en) 2008-11-19 2009-11-19 Anti-noise panel
BRPI0922059A BRPI0922059A2 (pt) 2008-11-19 2009-11-19 painel anti-ruído.
US13/130,276 US8579080B2 (en) 2008-11-19 2009-11-19 Anti-noise panel
AU2009317263A AU2009317263A1 (en) 2008-11-19 2009-11-19 Anti-noise panel
CN200980146280.4A CN102216530B (zh) 2008-11-19 2009-11-19 抗噪声板
ZA2011/04512A ZA201104512B (en) 2008-11-19 2011-06-17 Anti-noise panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTV2008A000148A IT1394452B1 (it) 2008-11-19 2008-11-19 Pannello antirumore.
ITTV2008A000148 2008-11-19

Publications (1)

Publication Number Publication Date
WO2010057945A1 true WO2010057945A1 (en) 2010-05-27

Family

ID=41202728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/065465 WO2010057945A1 (en) 2008-11-19 2009-11-19 Anti-noise panel

Country Status (10)

Country Link
US (1) US8579080B2 (zh)
EP (1) EP2366050A1 (zh)
KR (1) KR20110095890A (zh)
CN (1) CN102216530B (zh)
AU (1) AU2009317263A1 (zh)
BR (1) BRPI0922059A2 (zh)
IT (1) IT1394452B1 (zh)
RU (1) RU2536907C2 (zh)
WO (1) WO2010057945A1 (zh)
ZA (1) ZA201104512B (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102572655A (zh) * 2010-12-17 2012-07-11 鸿富锦精密工业（深圳）有限公司 电子装置
EP2725574A4 (en) * 2012-09-21 2014-04-30 Yoshiharu Kitamura ACOUSTIC INSULATION PLATE FOR AIR CIRCULATION AND ACOUSTIC INSULATION DEVICE
JP2015503603A (ja) * 2012-01-11 2015-02-02 エフ．ホフマン−ラ ロシュ アーゲーＦ． Ｈｏｆｆｍａｎｎ−Ｌａ Ｒｏｃｈｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ プロテアーゼ阻害剤としてのマクロ環式アミド

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WO2012086680A1 (ja) * 2010-12-21 2012-06-28 Kitamura Yoshiharu 気流を阻害しない防音板
US9091069B2 (en) * 2012-10-10 2015-07-28 Aus Group Alliance Pty Ltd Plastic wall panel
AU2013273747B2 (en) 2013-12-20 2015-11-26 Aus Group Alliance Pty Ltd Plastic panel and structures using the same
US10407654B1 (en) 2014-03-21 2019-09-10 Charm Sciences, Inc. Growth plate devices, kits and assemblies
CN104100062B (zh) * 2014-08-06 2017-01-25 苏州卓越工程塑料有限公司 一种吊顶用轻质隔热板
DE102014011790A1 (de) 2014-08-12 2016-02-18 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Stoßfängermodul
DE102014016044A1 (de) 2014-10-29 2016-05-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Frontpartie eines Kraftfahrzeugs und Stoßfängeraussteifung dazu
RU2596222C1 (ru) * 2015-08-26 2016-09-10 Олег Савельевич Кочетов Звукопоглощающее устройство кочетова для облицовки производственных помещений
US10988720B1 (en) 2015-11-09 2021-04-27 Charm Sciences, Inc. Peel plate assembly
RU2611649C1 (ru) * 2016-01-18 2017-02-28 Татьяна Дмитриевна Ходакова Звукопоглощающий элемент
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US8579080B2 (en) 2013-11-12
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BRPI0922059A2 (pt) 2015-12-15
US20110308885A1 (en) 2011-12-22

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