EP 1061190 A1 20001220 - Sound insulating sandwich element
Title (en)
Sound insulating sandwich element
Title (de)
Sandwich-Schallisolierungselement
Title (fr)
Elément d'isolation anti-bruit de type sandwich
Publication
Application
Priority
EP 99111191 A 19990609
Abstract (en)
A multilayered, sound insulating, mechanically strong sandwich element comprising two facing layers (1) substantially attached to a plastic foam core consisting of at least two layers (2) which are joined through contact points (also called bridges) (3) creating a gap or gaps (4) between the core layers (2) and, in case of long spans and/or thin facing layers, travel stops inside the gap/gaps (4) to keep the core layers (2) at a certain distance from each other, wherein the core layer material is a semi-rigid, cellular material containing more than 50 % open cells, and has a tensile strength of more than 50 kPa, and has a compressive strength from 5 to 200 kPa, at 10 % deformation. The distance between the contact points or bridges (3) is at least 350 mm. The new sandwich element can be used as a sound insulating door, a partition element or a construction unit. <IMAGE> <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
E04B 1/82 (2006.01); E04B 1/86 (2006.01); E04B 1/84 (2006.01)
CPC (source: EP KR)
E04B 1/86 (2013.01 - EP KR); E04B 9/045 (2013.01 - EP); E04B 2001/8447 (2013.01 - EP KR); E04B 2001/8452 (2013.01 - EP KR); E04B 2001/8461 (2013.01 - EP KR); E04B 2001/8476 (2013.01 - EP KR)
Citation (applicant)
- DE 3710057 A1 19881201 - WENGER WESPANWERK AG [CH]
- US 4317503 A 19820302 - SOEDERQUIST JAN [SE], et al
- WO 9514136 A1 19950526 - DOW CHEMICAL CO [US], et al
Citation (search report)
- [A] FR 2228916 A1 19741206 - HUGO KNODLER KG [DE]
- [A] DE 3940452 C1 19910502
- [DA] WO 9514136 A1 19950526 - DOW CHEMICAL CO [US], et al
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
EP 1061190 A1 20001220; EP 1061190 B1 20070509; AT E362024 T1 20070615; AU 4577499 A 20001228; AU 771473 B2 20040325; BR 9917404 A 20020319; CA 2371354 A1 20001214; CA 2371354 C 20080422; CN 1148501 C 20040505; CN 1352719 A 20020605; DE 69936046 D1 20070621; DE 69936046 T2 20080110; DK 1061190 T3 20070917; ES 2285804 T3 20071116; JP 2003522305 A 20030722; JP 4426141 B2 20100303; KR 20020022066 A 20020323; MX PA01012664 A 20020604; MY 125896 A 20060830; PT 1061190 E 20070816; TW 592974 B 20040621; WO 0075443 A1 20001214
DOCDB simple family (application)
EP 99111191 A 19990609; AT 99111191 T 19990609; AU 4577499 A 19990618; BR 9917404 A 19990618; CA 2371354 A 19990618; CN 99816711 A 19990618; DE 69936046 T 19990609; DK 99111191 T 19990609; ES 99111191 T 19990609; JP 2001501706 A 19990618; KR 20017015815 A 20011207; MX PA01012664 A 19990618; MY PI9902533 A 19990618; PT 99111191 T 19990609; TW 88110342 A 19990621; US 9913777 W 19990618