Impact absorbing composites and their production

Details Impact absorbing composites and their production Impact absorbing composites and their production

C - Chemistry, Metallurgy

08

J

26/163, 117/240,

C08J 9/42 (2006.01) B29D 35/14 (2010.01) A41D 31/00 (2006.01) B32B 3/26 (2006.01) B60R 21/045 (2006.01) F16F 1/37 (2006.01)

Patent

CA 1336316

An improved composite for absorbing and dispersing impacting forces is disclosed. The composite incudes a flexible plastic enclosure defining an internal cavity. The flexible enclosure is generally impermeable to air and capable of having it internal pressure changed. The composite further includes a foam core filling the cavity and retained within the cavity and adhered on substantially all of its external surface to the internal surface of the cavity. The cavity can be pressurized for higher impact absorbance. Methods for fabricating the composites are disclosed, as well. These methods include forming the outer enclosure by applying a solution/suspension of the prepolymer of controlled solids content to the core and also can include the step of preheating the core prior to coating it.

578069

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