Biobased deicing/anti-icing fluids

US7169321B2 · kind B2 · utility

Assignee

• Battelle Memorial Institute · CH

Inventors

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

Key dates

• Filing date: Feb 26, 2003
• Grant date: Jan 30, 2007
• Expiry date: Apr 7, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K3/18
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A nontoxic deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, an antioxidant, and water. The fluid has an LD50 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.