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Biobased deicing/anti-icing fluids

United States Patent

7,169,321
January 30, 2007
View the Complete Patent at the US Patent & Trademark Office
Bio-based Deicing/Anti-Icing Fluids
A nontoxic deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, an antioxidant, and water. The fluid has an LD.sub.50 greater than about 10,000 mg/L. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a vinylpyrrolidone polymer having a molecular weight between about 10,000 and about 700,000, and water. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a nonionic surfactant selected from the polyoxyalkylene ethers, an antioxidant, and water. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, a food grade material that functions as an antioxidant, and water. A further deicing/anti-icing fluid includes a biobased freezing point depressant, a material that functions as both a buffer and a freezing point depressant, and water.
Simmons; Kevin L. (Kennewick, WA), Frye, Jr.; John G. (Richland, WA), Werpy; Todd A. (West Richland, WA), Samuels; William D. (Richland, WA), Conkle; H. Nicholas (Columbus, OH), Monzyk; Bruce F. (Delaware, OH), Kuczek; Sara F. (Pataskala, OH), Chauhan; Satya P. (Columbus, OH)
Battelle Memorial Institute (Columbus, OH)
10/ 374,662
February 26, 2003