Adsorbent material
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.
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,
the binder comprises a polymer emulsion, or a dispersion of polymers,
the sorbent is loaded on the flexible material at 50 to 500 g/m 2 dry weight, and
the flexible material is for protection and/or decontamination and/or neutralisation of toxic chemicals.
2. A flexible material according to claim 1 , wherein the sorbent comprises at least one further sorbent.
3. 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.
4. A flexible material according to claim 1 , wherein the zirconium hydroxide has a particle size in the range 0.05 μm to 100 μm.
5. A flexible material according to claim 1 , wherein the flexible material comprises a textile.
6. 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.
7. A flexible material according to claim 6 , wherein the textile is a knitted textile, optionally a pile knitted textile.
8. A flexible material according to claim 5 , wherein the textile is texturised.
9. A flexible material according to claim 1 , wherein the textile comprises a natural or synthetic textile or a combination of natural and synthetic textiles.
10. A flexible material according to claim 1 , wherein the textile comprises elastane.
11. A flexible material according to claim 1 , wherein the flexible material is in the form of a protective garment.
12. A flexible material according to claim 1 , wherein the flexible material is in the form of a decontamination wipe.
13. A flexible material according to claim 1 , wherein the sorbent is derived from a sorbent dispersion comprising zirconium hydroxide and a binder and further comprising a solvent.
14. A flexible material according to claim 11 , wherein the solvent comprises water.
15. A flexible material according to claim 1 , wherein the polymeric emulsion, is selected from the group consisting of an acrylic, a polyurethane, a natural rubber latex, chloroprene, styrene-butadiene rubber (SBR) and/or nitrile rubber.
16. A flexible material according to claim 11 , wherein the protective garment is selected from a suit, a glove, a gauntlet, a mask, a gas mask, a sock, a head cover, trousers and/or a jacket.
17. A flexible material according to claim 12 , wherein the decontamination wipe comprises a mitt.
18. 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,
the binder comprises a polymer emulsion, or a dispersion of polymers,
the sorbent is loaded on the flexible material at 150 to 500 g/m2 dry weight, and
wherein the flexible material is for protection and/or decontamination and/or neutralisation of toxic chemicals.