Improved foams for vehicular energy absorbance

Details Improved foams for vehicular energy absorbance Improved foams for vehicular energy absorbance

C - Chemistry, Metallurgy

08

J

C08J 9/232 (2006.01) B29C 44/04 (2006.01)

Patent

CA 2636008

The invention is an energy absorbing member comprising, an amorphous thermoplastic cellular polymer in contact with a structural element, wherein at least about 50% of the cells of the amorphous cellular polymer are closed cells and the closed cells have a gas pressure that is about 0.5 atmosphere to about 1.4 atmospheres at ambient temperature.

L~invention concerne un élément absorbant l~énergie comprenant un polymère cellulaire thermoplastique amorphe en contact avec un élément structurel. Environ 50 % au moins des cellules dudit polymère sont des cellules fermées dans lesquelles la pression gazeuse se trouve dans la plage allant d~environ 0,5 atmosphère à environ 1,4 atmosphère à la température ambiante.

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