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Deicing/anti-icing fluids

United States Patent

September 12, 2006
View the Complete Patent at the US Patent & Trademark Office
Bio-based Deicing/Anti-Icing Fluids
A nontoxic deicing/anti-icing fluid includes a freezing point depressant selected from short chain polyols having 3 to 5 carbons atoms, and mixtures thereof, a wetting agent, an antioxidant/preservative, and water. The fluid has an LD.sub.50 greater than about 10,000 mg/L. Another deicing/anti-icing fluid includes the freezing point depressant, a vinylpyrrolidone polymer having a molecular weight between about 10,000 and about 700,000, and water. A runway deicing fluid includes glycerol, a buffer, an antioxidant/preservative, and water. Another deicing/anti-icing fluid includes a freezing point depressant having hydrophobic character, a wetting agent comprising an organophosphorus compound capable of producing an organic wettable surface, and water.
Samuels; William D. (Richland, WA), Conkle; H. Nicholas (Columbus, OH), Monzyk; Bruce F. (Delaware, OH), Simmons; Kevin L. (Kennewick, WA), Frye, Jr.; John G. (Richland, WA), Werpy; Todd A. (West Richland, WA), Kuczek; Sara F. (Pataskala, OH), Chauhan; Satya P. (Columbus, OH)
Battelle Memorial Institute (Columbus, OH)
10/ 833,942
April 28, 2004