PureTemp is a biobased specialty chemical company with offices in Minneapolis, Minn., and Tuscaloosa, Ala. PureTemp LLC, originally known as Entropy Solutions, began producing the world’s first 100 percent renewable phase change material in 2007. These patented PCMs, developed in three years of research sponsored by the U.S. Department of Agriculture, are used in a wide variety of temperature-control applications, from cooling vests and warming blankets to refrigerators and thermal energy storage tanks. Derived from 100 percent sustainable sources such as animal fat and plant oil, PureTemp phase change material is nontoxic and biodegradable. It is engineered to maintain more than 200 different transition temperatures with consistent, repeatable performance.
PureTemp has developed a fabric coating engineered to provide an effective buffer against ambient temperature swings in consumer products such as jackets, pillows and running shoes. Microencapsulated phase change material in the coating interacts continuously with the unique microclimate of the human body, storing and releasing energy to balance body temperature and increase comfort.