Passenger side air bag door with amine free urethane foam...

Details Passenger side air bag door with amine free urethane foam... Passenger side air bag door with amine free urethane foam...

C - Chemistry, Metallurgy

08

G

C08G 18/48 (2006.01) B32B 5/18 (2006.01) B60R 21/20 (2006.01)

Patent

CA 2155281

There is provided a supplementary impact restraint door comprised of a polyurethane foam and a vinyl skin laminated to the polyurethane foam. The polyurethane foam contains no tertiary amine based catalysts. There is also provided a polyol composition containing a polyoxyalkylene polyether polyol having a functionality of less than three and terminated with primary hydroxyl groups, and a crosslinking polyol having a functionality of three or more and a hydroxyl number of 200 or more, along with a polyurethane and/or polyisocyanurate catalyst which is free of tertiary amine centers. The polyol composition, when reacted with an organic isocyanate, produces a polyurethane foam which has a proper balance of tensile strength and elongation to allow the airbag to deploy and split the foam without fragmenting the foam.

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