Global Patent Index - EP 1263583 A1

EP 1263583 A1 2002-12-11 - METHOD FOR PRODUCTION OF A SOUND-ABSORBING ELEMENT

Title (en)

METHOD FOR PRODUCTION OF A SOUND-ABSORBING ELEMENT

Title (de)

NERFAHREN ZUR HERSTELLUNG EINES SCHALLDÄMMELEMENTS

Title (fr)

PROCEDE DE FABRICATION D'UN ELEMENT INSONORISANT

Publication

EP 1263583 A1 (DE)

Application

EP 01925480 A

Priority

  • DE 20004796 U
  • EP 0103047 W

Abstract (en)

[origin: WO0170499A1] The invention relates to a sound-absorbing element containing a layer (2) made of a sound-absorbing material, to whose at least one surface an impervious layer (4) is applied. The aim of the invention is to further develop the sound-absorbing element in order to prevent the penetration of, in particular, volatile substances while, at the same time, attaining favorable acoustic properties. To this end, the invention provides that the layer (2) made of a sound-absorbing material is provided in the form of a fibrous material, and the impervious layer (4) is provided in the form of a thermoplastic material.

IPC 1-7 (main, further and additional classification)

B32B 27/12; B60R 13/08; E04B 1/84; G10K 11/168

IPC 8 full level (invention and additional information)

B32B 27/12 (2006.01); B60R 13/08 (2006.01); E04B 1/84 (2006.01); G10K 11/168 (2006.01)

CPC (invention and additional information)

G10K 11/168 (2013.01)

Citation (search report)

See references of WO 0170499A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

DE 20004796 U1 20000810; AT 277759 T 20041015; AU 5221501 A 20011003; DE 50103877 D1 20041104; DK 1263583 T3 20041220; EP 1263583 A1 20021211; EP 1263583 B1 20040929; ES 2227175 T3 20050401; PL 358099 A1 20040809; PT 1263583 E 20050131; TR 200402578 T4 20041221; WO 0170499 A1 20010927

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2004-05-12 [RTI1] TITLE (CORRECTION)

- Free text: METHOD FOR PRODUCTION OF A SOUND-ABSORBING ELEMENT

2004-04-07 [RTI1] TITLE (CORRECTION)

- Free text: METHOD FOR PRODUCTION OF A SOUND-ABSORBING ELEMENT

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