EP0953964A3 - Foam-molded sound-absorbing articles - Google Patents

Foam-molded sound-absorbing articles Download PDF

Info

Publication number
EP0953964A3
EP0953964A3 EP99108136A EP99108136A EP0953964A3 EP 0953964 A3 EP0953964 A3 EP 0953964A3 EP 99108136 A EP99108136 A EP 99108136A EP 99108136 A EP99108136 A EP 99108136A EP 0953964 A3 EP0953964 A3 EP 0953964A3
Authority
EP
European Patent Office
Prior art keywords
foam
absorbing articles
sound
molded sound
absorbing
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.)
Granted
Application number
EP99108136A
Other languages
German (de)
French (fr)
Other versions
EP0953964A2 (en
EP0953964B1 (en
Inventor
Isidoor Dr. De Grave
Hermann Tatzel
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.)
BASF SE
Original Assignee
BASF SE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7865953&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0953964(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BASF SE filed Critical BASF SE
Publication of EP0953964A2 publication Critical patent/EP0953964A2/en
Publication of EP0953964A3 publication Critical patent/EP0953964A3/en
Application granted granted Critical
Publication of EP0953964B1 publication Critical patent/EP0953964B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Die Erfindung betrifft schallabsorbierende Schaumstoff-Formkörper, die im Frequenzbereich von 0,5 bis 4 kHz nach DIN 52215 einen Schallabsorptionsgrad von 30 bis 95 % aufweisen. Der Schaumstoff ist ein nicht vollständig verschweißter Polyolefin- oder Polystyrol-Partikelschaumstoff mit einem Zwickelvolumen zwischen 10 und 40 %.The invention relates to sound-absorbing foam molded articles, those in the frequency range from 0.5 to 4 kHz according to DIN 52215 have a sound absorption level of 30 to 95%. The Foam is a not fully welded polyolefin or Polystyrene particle foam with a gusset volume between 10 and 40%.

EP99108136A 1998-04-27 1999-04-26 Foam-molded sound-absorbing articles Expired - Lifetime EP0953964B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19818811 1998-04-27
DE19818811A DE19818811A1 (en) 1998-04-27 1998-04-27 Sound absorbing foam molded body

Publications (3)

Publication Number Publication Date
EP0953964A2 EP0953964A2 (en) 1999-11-03
EP0953964A3 true EP0953964A3 (en) 2002-04-17
EP0953964B1 EP0953964B1 (en) 2005-08-31

Family

ID=7865953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108136A Expired - Lifetime EP0953964B1 (en) 1998-04-27 1999-04-26 Foam-molded sound-absorbing articles

Country Status (5)

Country Link
US (1) US6060529A (en)
EP (1) EP0953964B1 (en)
BR (1) BR9901288B1 (en)
DE (2) DE19818811A1 (en)
ES (1) ES2246552T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10311245A1 (en) * 2003-03-14 2004-09-30 Greiner Perfoam Ges.m.b.H. Acoustic part made of composite foam
DE502006001958D1 (en) 2005-08-08 2008-12-11 Alstom Technology Ltd MUFFLER FOR GAS TURBINE SYSTEMS
BRPI0603479A (en) * 2006-08-14 2008-04-01 Maria Isabel Pinto Koleski expanded polypropylene foam
CN114835966B (en) * 2022-06-02 2024-02-06 南京中远高分子材料科技有限公司 Ultralow-frequency soundproof cotton, production process thereof and production detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557970A (en) * 1983-11-21 1985-12-10 Monsanto Company Laminate structure with improved acoustical absorption
US4898783A (en) * 1986-10-14 1990-02-06 The Dow Chemical Company Sound and thermal insulation
US5068001A (en) * 1987-12-16 1991-11-26 Reinhold Haussling Method of making a sound absorbing laminate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5432454B2 (en) * 1974-06-08 1979-10-15
US4111862A (en) * 1974-07-25 1978-09-05 Bell Fibre Products Corporation Mastic composition and composite structural panels formed therefrom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557970A (en) * 1983-11-21 1985-12-10 Monsanto Company Laminate structure with improved acoustical absorption
US4898783A (en) * 1986-10-14 1990-02-06 The Dow Chemical Company Sound and thermal insulation
US5068001A (en) * 1987-12-16 1991-11-26 Reinhold Haussling Method of making a sound absorbing laminate

Also Published As

Publication number Publication date
EP0953964A2 (en) 1999-11-03
BR9901288A (en) 2000-03-21
DE59912478D1 (en) 2005-10-06
EP0953964B1 (en) 2005-08-31
ES2246552T3 (en) 2006-02-16
US6060529A (en) 2000-05-09
DE19818811A1 (en) 1999-10-28
BR9901288B1 (en) 2009-08-11

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