# US 11,299,582 B2 · Breathable elastomeric composites with tether-containing conducting polymers for nanoscale diffusion control and protection

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- Number: US 11,299,582 B2
- Document ID: US11299582B2
- Status: Granted
- Kind: B2
- Application number: 16/860,330
- Filed: 2020-04-28
- Published: 2020-10-29
- Granted: 2022-04-12
- Earliest claimed: 2019-04-29
- Assignees: The Government of the United States of America, as represented by the Secretary of the Navy
- Applicants: The Government of the United States of America, as represented by the Secretary of the Navy
- Inventors: Brett D. Martin; Jawad Naciri; Banahalli R. Ratna
- Web page: https://patentgrep.com/patent/US11299582B2

## CPC

- C08G 61/126: {with a five-membered ring containing one sulfur atom in the ring}
- C08G 18/10: Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G 18/4825: {Polyethers containing two hydroxy groups (C08G18/4833 - C08G18/5096 take precedence)}
- C08G 18/6453: {having sulfur}
- C08G 18/7621: {being toluene diisocyanate including isomer mixtures}
- C08G 81/00: Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers (involving only carbon-to-carbon unsaturated bond reactions C08F299/00 {; polyester-amides C08G69/44; polyester-imides C08G73/16; polyamides-imides C08G73/14; block- or graft polymers containing polysiloxane sequences C08G77/42})
- C08J 3/242: {Applying crosslinking or accelerating agent onto compounding ingredients such as fillers, reinforcements}
- C08L 101/12: characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity (liquid crystal materials or compositions C09K19/00)
- C09D 165/00: Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C09D107/00 - C09D157/00, C09D161/00 take precedence); Coating compositions based on derivatives of such polymers
- D06M 15/63: containing sulfur in the main chain, e.g. polysulfones
- D06N 3/12: with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {, e.g. gelatine proteins}
- H01B 1/127: {comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes}
- C08G 2261/122: statistical
- C08G 2261/126: block
- C08G 2261/135: Cross-linked structures
- C08G 2261/1422: containing OH groups
- C08G 2261/1424: containing ether groups, including alkoxy
- C08G 2261/1426: containing carboxy groups (COOH) and/or -C(=O)O-moieties
- C08G 2261/1432: containing amide groups
- C08G 2261/1452: containing sulfonyl or sulfonate-groups
- C08G 2261/3223: containing one or more sulfur atoms as the only heteroatom, e.g. thiophene
- C08G 2261/43: Chemical oxidative coupling reactions, e.g. with FeCl3
- C08G 2261/514: Electron transport
- C08G 2261/65: Electrical insulator
- C08G 2261/70: Post-treatment
- C08G 2261/76: crosslinking
- C08G 2270/00: Compositions for creating interpenetrating networks
- C08J 2300/12: Polymers characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
- C08J 2300/208: Interpenetrating networks [IPN]
- C08J 2475/04: Polyurethanes
- D06M 15/564: Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06N: WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})

## Abstract

An interpenetrating network (IPN) polymer membrane material includes a soft polyurethane interspersed with a crosslinked conducting polymer. The material can be reversibly “switched” between its oxidized and reduced states by the application of a small voltage, ˜1 to 4 volts, thus modulating its diffusivity.

## Claims

### Claim 1

A fabric comprising a conductive polymer comprising poly(TP-CAE4P-SO3-co-bis-EDOT-co-HM-EDOT) poly((thiophene-3-carbonyl)-amino]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-propane-1-sulfonate)-co-bis5, 5 bis-3,4 ethylenedioxythiophene-co-hydroxymethyl-3,4 ethylenedioxythiophene).

### Claim 2 (depends on 1)

The conductive polymer of claim 1, wherein said fabric is incorporated into a protective garment, a filter, or a shelter.