Dry ice blasting with chemical additives

Abstract

Dry ice blasting using dry ice pellets having additives, such as antimicrobial compounds, disinfectants, surfactants, and odorants. Additives are incorporated into solid carbon dioxide by any variety of processes. The additives are selected on the basis of cleaning or olfactory effects.

1 . A method treating a surface of a target item, comprising:
 a) providing pellets, the pellets comprising:
 i) solid carbon dioxide; and 
 ii) one or more additives; 
   b) providing a stream of pressurized gas;   c) combining the pellets and the pressurized gas to accelerate the pellets; and   d) exposing the surface of the target item to the accelerated pellets.   
     
     
         2 . The method of  claim 1 , wherein the one or more additives is selected from at least one of antimicrobial compounds, disinfectants, surfactants, detergents, odorants, and combinations thereof. 
     
     
         3 . The method of  claim 2 , wherein the one or more additives is an antimicrobial compound. 
     
     
         4 . The method of  claim 3 , wherein the antimicrobial compound is selected from the group consisting of lauric arginate, natural lactic acid, ascorbic acid, benzoic acid, lactates, lacititol, gluconate, ammonium lactate, potassium lactate, sodium lactate, sodium lactate powder, sodium diacetate, methyl paraben, potassium nitrite, potassium nitrate, propinates, sorbates, benzoates, and combinations thereof. 
     
     
         5 . The method of  claim 2 , wherein the one or more additives is a disinfectant. 
     
     
         6 . The method of  claim 5 , wherein the disinfectant is selected from the group consisting of peroxides, formic acid, performic acid, peroxygen compounds, peracetic acid, perglutaric acid, perbenzoic acid, and combinations thereof. 
     
     
         7 . The method of  claim 2 , wherein the one or more additives is a surfactant. 
     
     
         8 . The method of  claim 7 , wherein the surfactant is selected from the group consisting of sodium dodecyl sulfate, ammonium lauryl sulfate, sodium laureth sulfate, alkyl benzene sulfonate, soaps, or fatty acid salts, cetyl trimethylammonium bromide, cetyl pyridinium chloride, polyethoxylated tallow amine, benzalkonium chloride, dodecyl betaine, dodecyl dimethylamine oxide, cocamidopropyl betaine, coco ampho glycinate, alkyl poly(ethylene oxide), octyl glucoside, decyl maltoside, cetyl alcohol, oleyl alcohol, cocamide monoethanolamine, cocamide diethanolamine, cocamide triethanolamine, and combinations thereof. 
     
     
         9 . The method of  claim 2 , wherein the one or more additives is an odorant. 
     
     
         10 . The method of  claim 9 , wherein the odorant is selected from the group consisting of 1-methoxy-4-(1-propenyl)benzene methoxybenzene, 2-methoxy-4-(2-propenyl)phenol, (R)-2-(4-methylcyclohex-3-enyl)propane-2-thiol, 2,3-benzopyrrole, methyl 2-hydroxybenzoate, 2-ethoxynaphthalene, and 3-Hydroxy-4,5-dimethylfuran-2(5H)-one, cis-3-Hexen-1-ol, 2-ethyl-3-hydroxy-pyran-4-one, 4-hydroxy-2,5-dimethyl-furan-3-one, 5-methyl-2-propan-2-yl-cyclohexan-1-ol (peppermint), 1-hexanol, benzaldehyde, hexanal, cinnamaldehyde, cis-3-hexenal, (2E)-3,7-dimethylocta-2,6-dienal, furan-2-carbaldehyde, (2Z)-3,7-dimethylocta-2,6-dienal, 4-hydroxy-3-methoxy-benzaldehyde, ethyl acetate, ethyl butanoate, methyl butanoate, pentyl butanoate, pentyl pentanoate, isoamyl acetate, hexyl acetate, ethyl hexanoate, ethyl octanoate, ethyl decanoate, ethyl 3-methyl-3-phenyl-oxirane-2-carboxylate, 1,7,7-trimethylnorbornan-2-one, 3,7-dimethyloct-6-en-1-ol), 3,7-dimethylocta-1,6-dien-3-ol, (2E)-3,7-dimethylocta-2,6-dien-1-ol, 3,7,11-trimethyl1,6,10-dodecatrien-3-ol, 2-(4-methyl-1-cyclohex-3-enyl)propan-2-ol, (1S,4R,5R)-4-methyl-1-propan-2-yl-bicyclo[3.1.0]hexan-3-one, 5-methyl-2-propan-2-yl-phenol, and combinations thereof. 
     
     
         11 . The method of  claim 1 , wherein the pellets further comprise a carrier chemical for suspending the one or more additives in the solid carbon dioxide. 
     
     
         12 . The method of  claim 11 , wherein the carrier chemical is selected from the group consisting of ethanol, propylene glycol, and d-limonene, and combinations thereof. 
     
     
         13 . A method for treating a surface of a target item, comprising:
 a) providing solid carbon dioxide pellets, wherein the solid carbon dioxide pellets comprise one or more additives selected from at least one of antimicrobial compounds, disinfectants, detergents, surfactants, odorants, and combinations thereof;   b) providing a stream of pressurized gas;   c) combining the solid carbon dioxide pellets and the stream of pressurized gas to accelerate the solid carbon dioxide pellets; and   d) exposing the surface of the target item to the accelerated solid carbon dioxide pellets.   
     
     
         14 . The method of  claim 13 , wherein the one or more additives is an antimicrobial compound. 
     
     
         15 . The method of  claim 14 , wherein the antimicrobial compound is selected from the group consisting of lauric arginate, natural lactic acid, ascorbic acid, benzoic acid, lactates, lacititol, gluconate, ammonium lactate, potassium lactate, sodium lactate, sodium lactate powder, sodium diacetate, methyl paraben, potassium nitrite, potassium nitrate, propinates, sorbates, benzoates, and combinations thereof. 
     
     
         16 . The method of  claim 13 , wherein the one or more additives is a disinfectant. 
     
     
         17 . The method of  claim 16 , wherein the disinfectant is selected from the group consisting of peroxides, formic acid, performic acid, peroxygen compounds, peracetic acid, perglutaric acid, perbenzoic acid, and combinations thereof. 
     
     
         18 . The method of  claim 13 , wherein the one or more additives is a surfactant. 
     
     
         19 . The method of  claim 18 , wherein the surfactant is selected from the group consisting of sodium dodecyl sulfate, ammonium lauryl sulfate, sodium laureth sulfate, alkyl benzene sulfonate, soaps, or fatty acid salts, cetyl trimethylammonium bromide, cetyl pyridinium chloride, polyethoxylated tallow amine, benzalkonium chloride, dodecyl betaine, dodecyl dimethylamine oxide, cocamidopropyl betaine, coco ampho glycinate, alkyl poly(ethylene oxide), octyl glucoside, decyl maltoside, cetyl alcohol, oleyl alcohol, cocamide monoethanolamine, cocamide diethanolamine, cocamide triethanolamine, and combinations thereof. 
     
     
         20 . The method of  claim 13 , wherein the one or more additives is an odorant. 
     
     
         21 . The method of  claim 20 , wherein the odorant is selected from the group consisting of 1-methoxy-4-(1-propenyl)benzene methoxybenzene, 2-methoxy-4-(2-propenyl)phenol, (R)-2-(4-methylcyclohex-3-enyl)propane-2-thiol, 2,3-benzopyrrole, methyl 2-hydroxybenzoate, 2-ethoxynaphthalene, and 3-Hydroxy-4,5-dimethylfuran-2(5H)-one, cis-3-Hexen-1-ol, 2-ethyl-3-hydroxy-pyran-4-one, 4-hydroxy-2,5-dimethyl-furan-3-one, 5-methyl-2-propan-2-yl-cyclohexan-1-ol (peppermint), 1-hexanol, benzaldehyde, hexanal, cinnamaldehyde, cis-3-hexenal, (2E)-3,7-dimethylocta-2,6-dienal, furan-2-carbaldehyde, (2Z)-3,7-dimethylocta-2,6-dienal, 4-hydroxy-3-methoxy-benzaldehyde, ethyl acetate, ethyl butanoate, methyl butanoate, pentyl butanoate, pentyl pentanoate, isoamyl acetate, hexyl acetate, ethyl hexanoate, ethyl octanoate, ethyl decanoate, ethyl 3-methyl-3-phenyl-oxirane-2-carboxylate, 1,7,7-trimethylnorbornan-2-one, 3,7-dimethyloct-6-en-1-ol), 3,7-dimethylocta-1,6-dien-3-ol, (2E)-3,7-dimethylocta-2,6-dien-1-ol, 3,7,11-trimethyl1,6,10-dodecatrien-3-ol, 2-(4-methyl-1-cyclohex-3-enyl)propan-2-ol, (1S,4R,5R)-4-methyl-1-propan-2-yl-bicyclo[3.1.0]hexan-3-one, 5-methyl-2-propan-2-yl-phenol, and combinations thereof. 
     
     
         22 . The method of  claim 13 , wherein the pellets further comprise a carrier chemical for suspending the one or more additives in the solid carbon dioxide. 
     
     
         23 . The method of  claim 22 , wherein the carrier chemical is selected from the group consisting of ethanol, propylene glycol, and d-limonene, and combinations thereof. 
     
     
         24 . Pellets for treating surfaces of dry ice blasting target items, comprising;
 a) dry ice; and   b) one or more additives, wherein the one or additives are releasable onto the surfaces of the dry ice blasting target items, wherein the one or more additives are selected to effect at least one of a cleaning function, a sanitizing function, disinfecting function, anti-microbial function, and an olfactory response in a human being.   
     
     
         25 . The pellets of  claim 24 , wherein the one or more additives is selected from the group consisting of antimicrobial compounds, disinfectants, surfactants, detergents, odorants, and combinations thereof. 
     
     
         26 . The pellets of  claim 25 , wherein the one or more additives is an antimicrobial compound. 
     
     
         27 . The pellets of  claim 26 , wherein the antimicrobial compound is selected from the group consisting of lauric arginate, natural lactic acid, ascorbic acid, benzoic acid, lactates, lacititol, gluconate, ammonium lactate, potassium lactate, sodium lactate, sodium lactate powder, sodium diacetate, methyl paraben, potassium nitrite, potassium nitrate, propinates, sorbates, benzoates, and combinations thereof. 
     
     
         28 . The pellets of  claim 25 , wherein the one or more additives is a disinfectant. 
     
     
         29 . The pellets of  claim 28 , wherein the disinfectant is selected from the group consisting of peroxides, formic acid, performic acid, peroxygen compounds, peracetic acid, perglutaric acid, perbenzoic acid, and combinations thereof. 
     
     
         30 . The pellets of  claim 25 , wherein the one or more additives is a surfactant. 
     
     
         31 . The pellets of  claim 30 , wherein the surfactant is selected from the group consisting of sodium dodecyl sulfate, ammonium lauryl sulfate, sodium laureth sulfate, alkyl benzene sulfonate, soaps, or fatty acid salts, cetyl trimethylammonium bromide, cetyl pyridinium chloride, polyethoxylated tallow amine, benzalkonium chloride, dodecyl betaine, dodecyl dimethylamine oxide, cocamidopropyl betaine, coco ampho glycinate, alkyl poly(ethylene oxide), octyl glucoside, decyl maltoside, cetyl alcohol, oleyl alcohol, cocamide monoethanolamine, cocamide diethanolamine, cocamide triethanolamine, and combinations thereof. 
     
     
         32 . The pellets of  claim 25 , wherein the one or more additives is an odorant. 
     
     
         33 . The pellets of  claim 32 , wherein the odorant is selected from the group consisting of 1-methoxy-4-(1-propenyl)benzene methoxybenzene, 2-methoxy-4-(2-propenyl)phenol, (R)-2-(4-methylcyclohex-3-enyl)propane-2-thiol, 2,3-benzopyrrole, methyl 2-hydroxybenzoate, 2-ethoxynaphthalene, and 3-Hydroxy-4,5-dimethylfuran-2(5H)-one, cis-3-Hexen-1-ol, 2-ethyl-3-hydroxy-pyran-4-one, 4-hydroxy-2,5-dimethyl-furan-3-one, 5-methyl-2-propan-2-yl-cyclohexan-1-ol (peppermint), 1-hexanol, benzaldehyde, hexanal, cinnamaldehyde, cis-3-hexenal, (2E)-3,7-dimethylocta-2,6-dienal, furan-2-carbaldehyde, (2Z)-3,7-dimethylocta-2,6-dienal, 4-hydroxy-3-methoxy-benzaldehyde, ethyl acetate, ethyl butanoate, methyl butanoate, pentyl butanoate, pentyl pentanoate, isoamyl acetate, hexyl acetate, ethyl hexanoate, ethyl octanoate, ethyl decanoate, ethyl 3-methyl-3-phenyl-oxirane-2-carboxylate, 1,7,7-trimethylnorbornan-2-one, 3,7-dimethyloct-6-en-1-ol), 3,7-dimethylocta-1,6-dien-3-ol, (2E)-3,7-dimethylocta-2,6-dien-1-ol, 3,7,11-trimethyl1,6,10-dodecatrien-3-ol, 2-(4-methyl-1-cyclohex-3-enyl)propan-2-ol, (1S,4R,5R)-4-methyl-1-propan-2-yl-bicyclo[3.1.0]hexan-3-one, 5-methyl-2-propan-2-yl-phenol, and combinations thereof. 
     
     
         34 . The pellets of  claim 24 , wherein the pellets further comprise a carrier chemical for suspending the one or more additives in the solid carbon dioxide. 
     
     
         35 . The pellets of  claim 34 , wherein the carrier chemical is selected from the group consisting of ethanol, propylene glycol, and d-limonene, and combinations thereof.