Deicing/anti-icing fluids

US7105105B2 · kind B2 · utility

Assignee

• Battelle Memorial Institute · CH

Inventors

• William D. Samuels · Richland, US
• H. Nicholas Conkle · Columbus, US
• Bruce F. Monzyk · Maryland Heights, US
• Kevin L. Simmons · Kennewick, US
• John G. Frye, Jr. · Richland, US
• Todd Werpy · West Richland, US
• Sara F. Kuczek · Pataskala, US
• Satya P. Chauhan · Columbus, US

Key dates

• Filing date: Apr 28, 2004
• Grant date: Sep 12, 2006
• Expiry date: Apr 28, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K3/185
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

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 LD50 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.