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US 12,201,949 B2Granted
Autonomous localized permeability material systems and methods for using and making same
AssigneeTeledyne FLIR Defense, Inc.
InventorsJennifer L. Poole, Jeremy P. Walker, Scott Donahue
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Abstract
Autonomous localized permeability material systems are provided that can include: a dynamically permeable porous material; and immobilized reagents operatively associated with the porous material in sufficient proximity to trigger a localized change in material pore size upon reagent reaction. Methods for preparing these materials are also provided as well as methods for autonomously modifying localized permeability of material.
Claims13
A material system comprising:
- a support layer;
- and
- a permeable porous material positioned on the support layer and configured to modulate repeatably between an open state and a closed state upon exposure to a reactant, wherein permeability of the permeable porous material in the closed state is less than permeability of the permeable porous material in the open state;
- and
- a reagent immobilized on the permeable porous material, wherein the reagent is configured to convert the reactant into a chemical trigger to locally reduce permeability of vapor and/or liquids through the permeable porous material;
- wherein the material system is integrated into at least one of clothing, a suit, a mask, and a protective textile application.
3 more elements
Dependencies are inferred from the claim text.