# US 2025/0114767 A1 · Adsorbent material

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2025/0114767 A1
- Document ID: US20250114767A1
- Status: Published application
- Kind: A1
- Application number: 18/982,941
- Filed: 2024-12-16
- Published: 2025-04-10
- Earliest claimed: 2021-05-17
- Assignees: Heathcoat Fabrics Limited
- Applicants: Heathcoat Fabrics Limited
- Inventors: KAMLESH MADHUBHAI MISTRY
- Web page: https://patentgrep.com/patent/US20250114767A1

## CPC

- B01J 20/06: comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J 20/08: comprising aluminium oxide or hydroxide; comprising bauxite
- A62D 5/00: Composition of materials for coverings or clothing affording protection against harmful chemical agents
- B01J 20/20: comprising free carbon; comprising carbon obtained by carbonising processes
- B01J 20/28004: {Sorbent size or size distribution, e.g. particle size}
- B01J 20/28028: {Particles immobilised within fibres or filaments}
- B01J 20/2803: {Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products}
- B01J 20/28033: {Membrane, sheet, cloth, pad, lamellar or mat}
- B01J 20/3042: {Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent}
- B01J 20/3206: {Organic carriers, supports or substrates}
- B01J 20/3236: {containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts}
- B01J 20/324: {containing free carbon, e.g. activated carbon}
- D06B 9/00: Solvent-treatment of textile materials
- D06M 11/44: Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
- D06M 11/45: Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
- D06M 11/46: Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
- D06M 11/74: with carbon or graphite; with carbides; with graphitic acids or their salts
- D06M 11/79: with silicon dioxide, silicic acids or their salts
- D06M 13/1845: {Aromatic mono- or polycarboxylic acids}
- D06M 15/03: Polysaccharides or derivatives thereof
- D06M 15/05: Cellulose or derivatives thereof
- D06M 15/09: Cellulose ethers
- D06M 15/333: of vinyl acetate; Polyvinylalcohol
- D06M 15/564: Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- D06M 15/693: with natural or synthetic rubber, or derivatives thereof
- D06M 23/08: Processes in which the treating agent is applied in powder or granular form (adhesives for multi-layer textile fabrics D06M17/00)
- D06N 3/0002: {characterised by the substrate}
- D06N 3/0009: {using knitted fabrics}
- D06N 3/0015: {using fibres of specified chemical or physical nature, e.g. natural silk}
- D06N 3/0068: {Polymeric granules, particles or powder, e.g. core-shell particles, microcapsules}
- D06N 2211/10: Clothing
- D06N 2211/24: Personal care
- Y10T 442/2516: Chemical material is one used in biological or chemical warfare
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- A62D: CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- D06B: TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS (mechanical treatment of natural fibrous or filamentary material to obtain fibres or filaments D01B)
- 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
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A flexible material is disclosed comprising a flexible substrate, a sorbent comprising zirconium hydroxide and a binder, wherein the solids weight ratio of the binder to the zirconium hydroxide is in the range 1:1 to 1:120. Also disclosed is a process for production of a fabric, comprising: providing a flexible material, providing at least one sorbent dispersion comprising zirconium hydroxide and a binder, applying the sorbent dispersion to the flexible material to produce a treated flexible material, squeezing the treated flexible material under pressure, and passing the pressed treated flexible material through a stenter.

## Claims

### Claim 1

A flexible material comprising a flexible substrate, a sorbent comprising zirconium hydroxide and a binder, wherein the solids weight ratio of the binder to the zirconium hydroxide is in the range 1:1 to 1:120.

### Claim 2 (depends on 1)

A flexible material according to claim 1, wherein the sorbent comprises at least one further sorbent.

### Claim 3 (depends on 2)

A flexible material according to claim 2, wherein further material is selected from one or more of a MOF, aluminium oxide, silicon-aluminium oxide, activated carbon, magnesium oxide and/or titanium dioxide.

### Claim 4 (depends on 1)

A flexible material according to claim 1, wherein the zirconium hydroxide has a particle size in the range 0.05 μm to 100 μm.

### Claim 5 (depends on 1)

A flexible material according to claim 1, wherein the flexible material comprises a textile.

### Claim 6 (depends on 5)

A flexible material according to claim 5, wherein the textile is selected from the group consisting of a knitted textile, a woven textile and a non-woven textile.

### Claim 7 (depends on 6)

A flexible material according to claim 6, wherein the textile is a knitted textile, optionally a pile knitted textile.

### Claim 8 (depends on 1)

A flexible material according to claim 1, wherein the textile is texturised.

### Claim 9 (depends on 1)

A flexible material according to claim 1, wherein the textile comprises a natural or synthetic textile or a combination of natural and synthetic textiles.

### Claim 10 (depends on 1)

A flexible material according to claim 1, wherein the textile comprises elastane.

### Claim 11

A process for production of a fabric, the process comprising:
a) providing a flexible material,
b) providing at least one sorbent dispersion comprising zirconium hydroxide and a binder,
c) applying the sorbent dispersion to the flexible material to produce a treated flexible material,
d) squeezing the treated flexible material under pressure,
e) passing the pressed treated flexible material through a stenter, and
f) optionally repeating any one of steps b), c), and e).

### Claim 12 (depends on 11)

A process according to claim 11, wherein the flexible material is at least partially porous.

### Claim 13 (depends on 11)

A process according to claim 11, wherein the sorbent dispersion further comprises a solvent, preferably water to provide a sorbent aqueous dispersion.

### Claim 14 (depends on 11)

A process according to claim 11, wherein the impregnated flexible material is pressed at a predetermined pressure in the range 1 psi (6.9 kPa) to 150 psi (1 MPa).

### Claim 15 (depends on 11)

A process according to claim 11, wherein the sorbent dispersion has a viscosity in the range 40 cps to 4000 cps.

### Claim 16 (depends on 11)

A process according to claim 11, wherein the dispersion further comprises a polymeric thickener, a protective colloid, and/or a wetting agent.

### Claim 17 (depends on 11)

A process according to claim 11, wherein the binder comprises a polymeric emulsion, optionally selected from an acrylic, a polyurethane, a natural rubber latex, chloroprene, styrene-butadiene rubber (SBR) and/or nitrile rubber, and optionally a colloid stabiliser and optionally a thickener.

### Claim 18 (depends on 11)

A process according to claim 11, wherein the sorbent is loaded on the flexible material at 50 to 500 g/m2 dry weight.

### Claim 19 (depends on 1)

A flexible material according to claim 1, wherein the flexible material is in the form of a protective garment.

### Claim 20 (depends on 1)

A flexible material according to claim 1, wherein the flexible material is in the form of a decontamination wipe.