AU2323299A - Microperforated polymeric film for sound absorption and sound absorber using same - Google Patents

Microperforated polymeric film for sound absorption and sound absorber using same

Info

Publication number
AU2323299A
AU2323299A AU23232/99A AU2323299A AU2323299A AU 2323299 A AU2323299 A AU 2323299A AU 23232/99 A AU23232/99 A AU 23232/99A AU 2323299 A AU2323299 A AU 2323299A AU 2323299 A AU2323299 A AU 2323299A
Authority
AU
Australia
Prior art keywords
sound
same
polymeric film
microperforated polymeric
absorber
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.)
Abandoned
Application number
AU23232/99A
Other languages
English (en)
Inventor
Kenneth B Wood
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of AU2323299A publication Critical patent/AU2323299A/en
Abandoned 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
    • 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
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24298—Noncircular aperture [e.g., slit, diamond, rectangular, 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24298—Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
    • Y10T428/24306—Diamond or hexagonal
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24298—Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
    • Y10T428/24314—Slit or elongated
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
AU23232/99A 1998-07-24 1999-01-18 Microperforated polymeric film for sound absorption and sound absorber using same Abandoned AU2323299A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/122,240 US6617002B2 (en) 1998-07-24 1998-07-24 Microperforated polymeric film for sound absorption and sound absorber using same
US09122240 1998-07-24
PCT/US1999/000987 WO2000005707A1 (en) 1998-07-24 1999-01-18 Microperforated polymeric film for sound absorption and sound absorber using same

Publications (1)

Publication Number Publication Date
AU2323299A true AU2323299A (en) 2000-02-14

Family

ID=22401534

Family Applications (1)

Application Number Title Priority Date Filing Date
AU23232/99A Abandoned AU2323299A (en) 1998-07-24 1999-01-18 Microperforated polymeric film for sound absorption and sound absorber using same

Country Status (7)

Country Link
US (1) US6617002B2 (enExample)
EP (1) EP1101218B1 (enExample)
JP (1) JP4108933B2 (enExample)
AU (1) AU2323299A (enExample)
CA (1) CA2337614C (enExample)
DE (1) DE69902276T2 (enExample)
WO (1) WO2000005707A1 (enExample)

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6977109B1 (en) * 1998-07-24 2005-12-20 3M Innovative Properties Company Microperforated polymeric film for sound absorption and sound absorber using same
PL201313B1 (pl) 1999-08-11 2009-03-31 Entwicklungsgesellschaft Fuer Element osłonowy lub kształtowy dla środków komunikacji
CA2382442C (en) * 1999-09-15 2009-07-07 Aradigm Corporation Pore structures for reduced pressure aerosolization
DE60017725T3 (de) * 2000-03-20 2009-08-13 Newmat S.A. Flexible Polymerfolie für aufgespannte Strukturen, Verfahren zu deren Herstellung und Unterdecke mit dieser Folie
US6598701B1 (en) * 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
EP1315638B1 (de) * 2000-09-09 2005-03-30 HP-Chemie Pelzer Research and Development Ltd. Bodenbelag mit hoher geräuschmindernder wirkung
JP2003241762A (ja) * 2002-02-14 2003-08-29 Koei Chemical Kogyosho:Kk 吸音マットとその製造方法
US20070292675A1 (en) * 2002-09-17 2007-12-20 Hout Penne J Polymeric foam composites that meet factory material 4880 requirements
JP4083068B2 (ja) * 2003-05-09 2008-04-30 名古屋油化株式会社 難燃性吸音材
CN1830020A (zh) * 2003-05-29 2006-09-06 理音株式会社 隔音、吸音构造体及应用了该构造体的构造物
DE10337110A1 (de) * 2003-08-11 2005-03-17 Zeuna-Stärker GmbH & Co. KG Abgasschalldämpfer
US7314114B2 (en) * 2004-02-11 2008-01-01 Acoustics First Corporation Flat panel diffuser
JP4001588B2 (ja) * 2004-04-09 2007-10-31 株式会社林技術研究所 自動車用成形敷設内装材
ES2245240B1 (es) * 2004-06-03 2007-03-16 Consejo Sup. Investig. Cientificas. Unidades de insercion microperforadas para su uso como absorbentes acusticos.
US20060065481A1 (en) * 2004-09-24 2006-03-30 Lear Corporation Perforated hard trim for sound absorption
FR2881765B1 (fr) * 2005-02-08 2007-04-13 Brevetix Sarl Ensemble acoustiquement absorbant
NO322685B1 (no) * 2005-03-23 2006-11-27 Deamp As Plateelement
WO2006106854A1 (ja) * 2005-03-30 2006-10-12 Matsushita Electric Industrial Co., Ltd. 吸音構造体
US20060254855A1 (en) * 2005-05-16 2006-11-16 Loftus James E Fibrous material having densified surface for improved air flow resistance and method of making
KR100645824B1 (ko) * 2005-06-14 2006-11-14 김영옥 흡음판넬
US20070012508A1 (en) * 2005-07-13 2007-01-18 Demers Christopher G Impact resistance acoustic treatment
US7276839B1 (en) * 2005-11-30 2007-10-02 The United States Of America Represented By The Secretary Of The Navy Bondable fluoropolymer film as a water block/acoustic window for environmentally isolating acoustic devices
JP4856240B2 (ja) * 2006-04-27 2012-01-18 スリーエム イノベイティブ プロパティズ カンパニー 構造化フィルムを製作する方法
JP5623737B2 (ja) * 2006-04-27 2014-11-12 スリーエム イノベイティブプロパティズカンパニー 音響吸収性を有する構造化膜
US7520370B2 (en) * 2006-05-17 2009-04-21 William Orlin Gudim Combination acoustic diffuser and absorber and method of production thereof
WO2008017737A1 (fr) 2006-08-10 2008-02-14 Brevetix Ensemble acoustiquement absorbant
DE102007051408A1 (de) * 2007-10-25 2009-05-28 Prelatec Gmbh Verfahren zum Bohren von Löchern definierter Geometrien mittels Laserstrahlung
DE202007017699U1 (de) * 2007-12-19 2009-02-26 VS Vereinigte Spezialmöbelfabriken GmbH & Co. KG Trennwandelement
KR20110004418A (ko) * 2008-04-14 2011-01-13 쓰리엠 이노베이티브 프로퍼티즈 컴파니 다층 흡음 시트
EP2272060B1 (en) * 2008-04-22 2019-09-18 3M Innovative Properties Company Hybrid sound absorbing sheet
KR20160055954A (ko) * 2008-05-05 2016-05-18 쓰리엠 이노베이티브 프로퍼티즈 컴파니 방음 복합체
EP2283480A4 (en) * 2008-05-22 2016-11-09 3M Innovative Properties Co MULTILAYER SOUND ABSORBING STRUCTURE WITH A MESH LAYER
WO2010080232A1 (en) 2008-12-19 2010-07-15 3M Innovative Properties Company System and method for concentrating samples
CN102317754B (zh) 2008-12-19 2015-09-30 3M创新有限公司 用于处理样品的系统和方法
FR2948457B1 (fr) * 2009-07-24 2013-08-09 Canon Kk Procede de determination d'un profil d'absorption, dispositif et programme d'ordinateur associes
TWI506070B (zh) 2009-12-14 2015-11-01 3M Innovative Properties Co 微穿孔聚合物薄膜及其製造方法與用途
FR2964677B1 (fr) * 2010-09-14 2013-06-28 Saint Gobain Procede et dispositif pour fabriquer un panneau absorbant acoustique
EP2653017A4 (en) * 2010-12-16 2017-04-26 Taras Kowalczyszyn Improved housing for containing electronic components therein
EP2657932A4 (en) * 2010-12-21 2017-01-11 Yoshiharu Kitamura Soundproofing plate which does not obstruct airflow
JP2014518394A (ja) 2011-06-30 2014-07-28 スリーエム イノベイティブ プロパティズ カンパニー 微細構造化表面を使用して、サンプル内の目的の検体を検出するためのシステム及び方法
CN103620373B (zh) 2011-06-30 2017-07-07 3M创新有限公司 利用过滤器和微结构化表面检测样品中所关注分析物的方法
JP6110056B2 (ja) 2011-08-25 2017-04-05 スリーエム イノベイティブ プロパティズ カンパニー 吸音材
US9194124B2 (en) 2011-12-09 2015-11-24 3M Innovative Properties Company Acoustic light panel
US8418806B1 (en) 2012-01-13 2013-04-16 Janesville Acoustics, a Unit of Jason Incorporated Sound attenuating device using an embedded layer for acoustical tuning
JP6233796B2 (ja) * 2012-07-31 2017-11-22 インターマン株式会社 携帯端末用ブース
DE102012216500A1 (de) 2012-09-17 2014-03-20 Hp Pelzer Holding Gmbh Mehrlagiger gelochter Schallabsorber
WO2014045404A1 (ja) * 2012-09-21 2014-03-27 Kitamura Yoshiharu 気流を許容する防音板及び防音デバイス
US9388731B2 (en) 2013-03-15 2016-07-12 Kohler Co. Noise suppression system
US9752494B2 (en) 2013-03-15 2017-09-05 Kohler Co. Noise suppression systems
EP2858066A3 (en) * 2013-10-03 2015-04-15 Kohler Co. Noise suppression systems
US9168476B2 (en) 2013-10-11 2015-10-27 3M Innovative Properties Company Air filter comprising a microperforated film, and method of using
DE102013226792A1 (de) * 2013-12-19 2015-06-25 Volkswagen Aktiengesellschaft Verfahren zur akustischen und/oder fluidtechnischen Perforation eines aus einem Faserverbundkunststoff hergestellten Bauteils
FR3018384B1 (fr) * 2014-03-04 2016-03-11 Scherrer Jean Marc Ensemble d'absorption acoustique a hautes et basses frequences
NO337032B1 (no) 2014-04-29 2016-01-04 Deamp As Lydabsorberende film
ES2703379T3 (es) * 2014-05-14 2019-03-08 Pregymix S R L Dispositivo de atenuación acústica para carriles
DE102014214547A1 (de) * 2014-07-24 2016-01-28 Sennheiser Electronic Gmbh & Co. Kg Verfahren zum Herstellen von akustischen Widerständen
CN106715849B (zh) 2014-09-09 2019-10-22 3M创新有限公司 声学装置及使用其来衰减气载声能的方法
DK178443B1 (en) * 2014-12-01 2016-02-29 Dampa Aps Sound absorbing dry erase board
WO2016133501A1 (en) * 2015-02-18 2016-08-25 Middle River Aircraft Systems Acoustic liners and method of shaping an inlet of an acoustic liner
JP6464412B2 (ja) * 2015-04-08 2019-02-06 平岡織染株式会社 吸音不燃シート
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
DE102015209105A1 (de) 2015-05-19 2016-11-24 Hp Pelzer Holding Gmbh Leichtes akustisches Bauteil
DE112016002615T5 (de) * 2015-06-09 2018-03-08 Asahi Glass Company, Limited Folie und schallabsorbierende Struktur
KR102522668B1 (ko) * 2015-09-02 2023-04-18 쿠퍼스탠다드오토모티브앤인더스트리얼 주식회사 차량용 소음기
US10068563B2 (en) 2015-11-18 2018-09-04 Rpg Acoustical Systems Llc Sound absorbing panel with wedge-shaped cross-section micro-slits
US10460714B1 (en) 2016-02-05 2019-10-29 United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Broadband acoustic absorbers
JP6376167B2 (ja) * 2016-03-31 2018-08-22 マツダ株式会社 吸音材
US11104098B2 (en) 2016-05-31 2021-08-31 Cadillac Products Automotive Company Fibrous vehicle underbody shield
CN109643535B (zh) 2016-08-23 2023-02-28 富士胶片株式会社 防音结构体及开口结构体
EP3535221A1 (en) 2016-11-04 2019-09-11 Corning Incorporated Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems
US10062371B2 (en) 2016-11-21 2018-08-28 Milliken & Company Nonwoven composite
US10294596B2 (en) 2016-11-21 2019-05-21 Milliken & Company Process for forming a nonwoven composite
US10792870B2 (en) 2016-11-29 2020-10-06 Milliken & Company Process for forming a nonwoven composite
US10607589B2 (en) 2016-11-29 2020-03-31 Milliken & Company Nonwoven composite
EP3605525B1 (en) 2017-03-27 2022-03-30 FUJIFILM Corporation Soundproof structure
WO2019005858A1 (en) 2017-06-28 2019-01-03 3M Innovative Properties Company MICROPERFORATED CONDUIT
WO2019079695A1 (en) 2017-10-19 2019-04-25 3M Innovative Properties Company ACOUSTIC ARTICLE AND ASSOCIATED METHODS
US10611116B2 (en) 2018-05-17 2020-04-07 Milliken & Company Nonwoven composite
WO2020019114A1 (en) 2018-07-23 2020-01-30 3M Innovative Properties Company Thermal insulation materials and methods thereof
EP3847715A4 (en) 2018-09-07 2022-04-13 3M Innovative Properties Company FIRE PROTECTION ARTICLES AND RELATED PROCEDURES
CN113710845A (zh) 2019-04-25 2021-11-26 3M创新有限公司 声学制品及其方法
US20230000195A1 (en) * 2019-09-03 2023-01-05 Strategic Sports Limited Oblique impact protection technology, helmet containing, sports equipment containing, and process therefor
US12125464B2 (en) 2019-09-03 2024-10-22 3M Innovative Properties Company Assembly including acoustic baffles
US11869474B2 (en) * 2020-02-10 2024-01-09 Lumenwerx Ulc. Sound absorbing light fixture
US11446980B2 (en) 2020-06-10 2022-09-20 Denso International America, Inc. HVAC system noise control
WO2022053977A1 (en) 2020-09-11 2022-03-17 3M Innovative Properties Company Acoustic absorbing filler and related acoustic article
CN116670753A (zh) 2020-09-11 2023-08-29 3M创新有限公司 吸声填料和相关的声学制品
EP4233043A1 (en) 2020-10-23 2023-08-30 3M Innovative Properties Company Acoustic articles and assemblies
WO2022144730A1 (en) 2020-12-28 2022-07-07 3M Innovative Properties Company Battery assembly and methods
US11982391B2 (en) * 2021-01-14 2024-05-14 Versus Llc Percussive pressure damper
US12157294B2 (en) * 2021-07-23 2024-12-03 Whirlpool Corporation Scrim layer on insulation
WO2023042016A1 (en) 2021-09-15 2023-03-23 3M Innovative Properties Company Acoustic articles and methods of making the same
CN115620691B (zh) * 2022-10-10 2025-06-13 南昌航空大学 一种可伸缩的微穿孔板吸声结构及设计方法
CN115731912A (zh) * 2022-11-18 2023-03-03 蚌埠学院 一种微穿孔板吸声结构及设计方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621934A (en) * 1970-05-18 1971-11-23 Goodrich Co B F Acoustic wall coverings
US3782495A (en) 1972-06-08 1974-01-01 M Nassof Ceiling tile
NL7605978A (nl) * 1975-06-04 1976-12-07 Scott Paper Co Akoestisch film-schuimlaminaat en werkwijze ter vervaardiging daarvan.
US4287962A (en) 1977-11-14 1981-09-08 Industrial Acoustics Company Packless silencer
SE500334C2 (sv) 1990-02-08 1994-06-06 Rockwool Ab Krökt akustikelement
US5459291A (en) 1992-09-29 1995-10-17 Schuller International, Inc. Sound absorption laminate
US5298694A (en) 1993-01-21 1994-03-29 Minnesota Mining And Manufacturing Company Acoustical insulating web
DE4315759C1 (de) 1993-05-11 1994-05-05 Fraunhofer Ges Forschung Schallabsorbierendes Glas- oder transparentes Kunstglasbauteil
US5560967A (en) * 1994-07-25 1996-10-01 The Excello Specialty Company Sound absorbing automotive water deflector
JPH08314468A (ja) * 1995-03-14 1996-11-29 Toyoda Gosei Co Ltd 防音材
JP3306610B2 (ja) * 1994-12-13 2002-07-24 エヌ・オー・ケー・ビブラコースティック株式会社 吸音材の製造方法
US5653836A (en) 1995-07-28 1997-08-05 Rohr, Inc. Method of repairing sound attenuation structure used for aircraft applications
JP3346451B2 (ja) * 1996-06-06 2002-11-18 日産自動車株式会社 筒部を有する成形品の成形方法
DE19626676A1 (de) 1996-07-03 1998-01-08 Kaefer Isoliertechnik Vorrichtung zur Verminderung von Schallpegeln in Gebäuden
US5962107A (en) * 1997-10-29 1999-10-05 Johns Manville International, Inc. Perforated cellular sound absorption material

Also Published As

Publication number Publication date
US20010050197A1 (en) 2001-12-13
DE69902276D1 (de) 2002-08-29
CA2337614C (en) 2005-04-26
JP4108933B2 (ja) 2008-06-25
JP2002521722A (ja) 2002-07-16
EP1101218A1 (en) 2001-05-23
WO2000005707A1 (en) 2000-02-03
CA2337614A1 (en) 2000-02-03
EP1101218B1 (en) 2002-07-24
US6617002B2 (en) 2003-09-09
DE69902276T2 (de) 2002-11-28

Similar Documents

Publication Publication Date Title
AU2323299A (en) Microperforated polymeric film for sound absorption and sound absorber using same
AU2001213414A1 (en) Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
AU2331895A (en) Absorbent structure including an adhesive
EP0793992A3 (en) Absorbent packet
AU5375198A (en) Unitary absorbent layer
AU1818195A (en) Porous film
DE59908470D1 (de) Schallabsorbierendes dünnschichtlaminat
AU4018995A (en) An audio transceiver
AU1608195A (en) Absorbent materials having improved absorbent property and methods for making the same
AU3856297A (en) Polymeric film
AU3167299A (en) Vibration eliminating device and exposure system
AU4100897A (en) Water absorbing agent and absorbent material
AU6787600A (en) Polyolefin foam/film composite structure and method for making same
AU2001228484A1 (en) Sound absorbing material
AU8467998A (en) Method for producing foam and device for realising the same
AU1352999A (en) Sound decoding device and sound decoding method
AU1615400A (en) Reticulated absorbent composite
AU6289299A (en) Absorbent article with microporous film and adhesive
AU2433299A (en) Audio device
AU6572094A (en) Sound absorbent material
IT241053Y1 (it) Pannello fonoassorbente
AU6995896A (en) An energy absorbing device
PL340407A1 (en) Sound absorbing screen
AU4141497A (en) Absorption means
AU2648999A (en) Absorbent

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase