EP 1121276 A1 20010808 - LOW PERMEABILITY AIRBAG CUSHIONS HAVING EXTREMELY LOW COATING LEVELS
Title (en)
LOW PERMEABILITY AIRBAG CUSHIONS HAVING EXTREMELY LOW COATING LEVELS
Title (de)
LUFTKISSEN MIT NIEDRIGER DURCHLÄSSIGKEIT UND EINER BESCHICHTUNG IN SEHR GERINGER MENGE
Title (fr)
COUSSIN GONFLABLE DE SECURITE A FAIBLE PERMEABILITE, DOTE D'UN REVETEMENT EN QUANTITE EXTREMEMENT FAIBLE
Publication
Application
Priority
- US 0016561 W 20000615
- US 33525799 A 19990617
- US 35062099 A 19990709
- US 50146700 A 20000209
Abstract (en)
[origin: WO0078577A1] Coated inflatable fabrics (26), more particularly airbags to which very low add-on amounts of coating have been applied, are provided which exhibit extremely low air permeabilities. The inventive fabrics are primarily for use in automotive restraint cushions which require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones and the like, have been utilized to provide such required low permeability levels. Thus, the inventive coated airbag possesses a coating of at most 2.5 ounces per square yard, most preferably about 0.8 ounces per square yard, and exhibits a leak-down time (a meaurement of the time required for the entire amount of gas introduced within the airbag at peak pressure during inflation to escape the airbag at 10 psi) of at least 7 seconds. All coatings, in particular elastomeric, non-silicon coatings, and coated airbags, meeting these criteria are intended to reside within the scope of this invention.
IPC 1-7
IPC 8 full level
B60R 21/16 (2006.01); B32B 27/00 (2006.01); B32B 27/12 (2006.01); B32B 27/40 (2006.01); B60R 21/235 (2006.01); D03D 1/02 (2006.01); D06M 15/564 (2006.01); D06N 3/14 (2006.01); D06N 3/18 (2006.01); B60R 21/232 (2011.01)
CPC (source: EP)
B32B 27/12 (2013.01); B60R 21/235 (2013.01); D06N 3/186 (2013.01); B60R 21/232 (2013.01); B60R 2021/23514 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0078577 A1 20001228; AU 5493200 A 20010109; BR 0006934 A 20010626; CA 2340903 A1 20001228; CN 1173848 C 20041103; CN 1320089 A 20011031; EP 1121276 A1 20010808; EP 1121276 A4 20110427; JP 2003502522 A 20030121; JP 4597447 B2 20101215
DOCDB simple family (application)
US 0016561 W 20000615; AU 5493200 A 20000615; BR 0006934 A 20000615; CA 2340903 A 20000615; CN 00801699 A 20000615; EP 00939924 A 20000615; JP 2001504760 A 20000615