Impact absorbing composites and their production

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

1988-01-07

1989-10-17

Beck, Shrive

Coating processes

Spraying

4274301, 5481, 36 37, 36 92, B05D 118, B05D 102

Patent

active

048746401

ABSTRACT:
An improved composite for absorbing and dispersing impacting forces is disclosed. The composite includes a flexible plastic enclosure defining an internal cavity. The flexible enclosure is generally impermeable to air and capable of having its 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.

REFERENCES:
patent: 2626886 (1953-01-01), Scholl
patent: 3707434 (1972-12-01), Stayner
patent: 4347205 (1982-08-01), Stewart
patent: 4663226 (1987-05-01), Vajs et al.

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