Pourable Polyurethane Foam with Energy Attenuating Properties
AssigneeTextron Innovations Inc.
InventorSuvankar Mishra
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Abstract
Embodiments are directed to a pourable foam comprising a first resin component comprising a polymeric methylene diphenyl diisocyanate, a second resin component comprising a polyol, and a barium sulfate powder component. The barium sulfate powder component is combined with the second resin component prior to combining the first and second resin components. The barium sulfate component may comprise between 1% and 50% of the pourable foam. The pourable foam may be used to repair or create aircraft components.
Claims20
A pourable foam, comprising:
- a first resin component comprising a polymeric methylene diphenyl diisocyanate;
- a second resin component comprising a polyol;
- and
- a barium sulfate powder component.
A foam adapted for repair of aircraft components, comprising:
- a first resin component;
- a second resin component;
- and
- a barium sulfate powder component, wherein energy attenuating properties of the foam are controlled by a proportion of the barium sulfate component in the foam selected to create a foam cell size in the range of 0.006 to 0.017 inches.
A method for preparing a pourable foam, comprising:
- combining a barium sulfate powder component with a first resin component, wherein the first resin component comprises a polyol;
- and
- mixing the combination of the first resin component and the barium sulfate powder with a second resin component to create the pourable foam, wherein the second resin component comprises a polymeric methylene diphenyl diisocyanate.
Dependencies are inferred from the claim text.