Polymeric composition for the neutralization of noxious agents
The present application is directed to a novel composition which acts as a barrier to noxious agents while adding self-detoxifying catalytic treatments to neutralize the noxious and harmful warfare agents when applied for example on a fabric, or other solid support.
1. A composition for protection against harmful or noxious agents comprising:
a) from 1 to 95% by weight of a porous media;
b) from 2 to 60% by weight of an aliphatic amine or hydrophilic amine polymer or monomer;
c) from 0.1 to 10% by weight of a surfactant agent;
d) from 0.1 to 10% by weight of an epoxy resin or of a crosslinking agent;
e) from 5 to 20% by weight of a polyvinyl acetate polymer or copolymer;
f) from 0.1 to 10% by weight of a defoamer agent and,
g) from 10 to 90% by weight of water.
2. The composition of claim 1 , wherein said harmful or noxious agents are neutralized or decontaminated when they are contacted with said composition.
3. The composition of claim 1 , further comprising:
h) from 0 to 20% by weight of a polyvinyl alcohol polymer or copolymer;
i) from 0 to 60% by weight of a polyurethane polymer;
j) from 0 to 60% by weight of an acrylic polymer; and,
k) from 0 to 5% by weight of one or more metal salts or oxides.
4. The composition of claim 1 , wherein said porous media is activated carbon particles or zeolite.
5. The composition of claim 4 , wherein said activated particles are in the form of powder, beads, granules or nanotubes.
6. The composition of claim 1 , wherein said porous media is a carbon fabric.
7. The composition of claim 6 , wherein said carbon fabric is in the form of a fiber, woven cloth, non-woven cloth, knit cloth or filter.
8. The composition of claim 1 , wherein said porous media is a combination of activated carbon and zeolite.
9. The composition of claim 1 , wherein said aliphatic amine or hydrophilic amine polymer or monomer is polyethylenimine.
10. The composition of claim 1 , wherein said polyvinyl acetate polymer or copolymer is ethylene vinyl acetate.
11. A method of preparing a laminated support using a laminate composition of claim 1 ; said method comprising casting said laminate composition on a solid support to yield said laminated support and curing said laminated support.
12. A laminated support comprising one or more layers of the composition of claim 1 .
13. The laminated support of claim 12 combined with one or more layers of the composition comprising:
a) from 2 to 60% by weight of an aliphatic amine or hydrophilic amine polymer or monomer;
b) from 0 to 10% by weight of a surfactant agent;
c) from 0 to 10% by weight of an epoxy resin or of a crosslinking agent;
d) from 0 to 90% by weight of a polyvinyl acetate polymer or copolymer;
e) from 0 to 20% by weight of a polyvinyl alcohol polymer or copolymer;
f) from 0 to 60% by weight of a polyurethane polymer;
g) from 0 to 60% by weight of an acrylic polymer;
h) from 0 to 5% by weight of one or more metal salts or metal oxides;
i) from 0 to 10% by weight of a defoamer agent; and
j) from 10 to 90% by weight of water.
14. The laminated support of claim 13 , wherein said aliphatic amine or hydrophilic amine polymer is replaced by a vinyl amine and polyvinyl alcohol copolymer.
15. The laminated support of claim 12 , wherein said porous media used is a combination of activated carbon and zeolite.