Strippable containment and decontamination coating composition and method of use
View Patent ↗A method for containing at least a portion of radioisotopes, radionuclides, heavy metal or combination thereof contaminating a substrate wherein a containment composition is applied to the substrate. The ingredients within the containment composition interact with the contaminants on the surface of the substrate until the containment composition has polymerized to a water insoluble form containing at least a portion of the contaminates enmeshed therein. The dried composition is removed from the contaminated surface removing with the composition at least a portion of the contaminate.
1. An aqueous containment and decontamination composition, capable of forming a strippable coating upon drying, consisting of:
10 wt % poly (vinyl alcohol);
5 wt % isosaccharinic acid and salts thereof;
5 wt % propylene glycol;
5 wt % glycerin;
5 wt % ammonium chloride;
4 wt % sodium borate; and
66% water;
wherein the pH of the composition ranges from 7.5 to 8.0.
2. A containment and decontamination composition capable of forming a strippable coating upon drying, consisting of:
polyvinyl alcohol in the range from 1 wt % to 20 wt %;
natural or synthetic latex rubber in ammonia solution in the range from 1 wt % to 20 wt %;
citric acid in the range from 0.01 wt % to 10 wt %;
isosaccharinic acid and soluble salts thereof in the range from 1 wt % to 10 wt %;
ammonium thiocyanate in the range of 0.01 wt % to 10 wt %;
ammonium chloride in the range from 0.01 wt % to 20 wt %;
potassium chloride in the range from 0.01 wt % to 10 wt %;
surfactant in the range from 0.1 wt % to 1 wt %;
methyl cellulose in the range from 0.01 wt % to 10 wt %;
hydroxymethyl cellulose in the range from 0.01 wt % to 10 wt %;
triethanolamine in the range from 0.01 wt % to 20 wt %; and
water.
3. A containment and decontamination composition, capable of forming a strippable coating upon drying, comprising:
1 wt % to 20 wt % of natural or synthetic latex rubber;
1 wt % to 10 wt % of isosaccharinic acid and soluble salts thereof;
1 wt % to 10 wt % of triethanolamine; and
water.
4. An aqueous containment and decontamination composition, capable of forming a strippable coating upon drying, consisting of:
10 wt % poly (vinyl alcohol);
1 wt % to 10 wt % isosaccharinic acid and salts thereof;
5 wt % propylene glycol;
0.1 wt % to 10 wt % glycerin;
0.01 wt % to 10 wt % ammonium chloride;
0.01 wt % to 10 wt % sodium borate; and
water;
wherein the pH of the composition ranges from pH 7.5 to pH 8.
5. An aqueous containment and decontamination composition, capable of forming a strippable coating upon drying, consisting of:
polyvinyl alcohol in the range from 5 wt % to 20 wt %;
citric acid in the range from 0.01 wt % to 10 wt %;
isosaccharinic acid in the range from 1 wt % to 10 wt %;
ammonium thiocyanate in the range of 0.01 wt % to 10 wt %;
potassium chloride in the range from 0.01 wt % to 10 wt %;
surfactant in the range from 0.001 wt % to 1 wt %;
methyl cellulose in the range from 0.01 wt % to 10 wt %;
triethanolamine in the range from 0.01 wt % to 20 wt %;
sodium borate in the range from 0.01 wt % to 10 wt %; and
water.