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MIXTURE AND METHOD FOR SIMULATING SOILING AND WEATHERING OF SURFACES

United States Patent Application

20130287966
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
This disclosure provides systems, methods, and apparatus related to simulated soiling and weathering of materials. In one aspect, a soiling mixture may include an aqueous suspension of various amounts of salt, soot, dust, and humic acid. In another aspect, a method may include weathering a sample of material in a first exposure of the sample to ultraviolet light, water vapor, and elevated temperatures, depositing a soiling mixture on the sample, and weathering the sample in a second exposure of the sample to ultraviolet light, water vapor, and elevated temperatures.
Sleiman, Mohamad (Berkeley, CA), Kirchstetter, Thomas (Oakland, CA), Destaillats, Hugo (Scottsdale, AZ), Levinson, Ronnen (Berkeley, CA), Berdahl, Paul (Walnut Creek, CA), Akbari, Hashem (Lafayette, CA)
The Regents of the University of California (Oakland CA)
13/ 827,772
March 14, 2013
STATEMENT OF GOVERNMENTAL SUPPORT [0002] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 between the U.S. Department of Energy and the Regents of the University of California for the management and operation of the Lawrence Berkeley National Laboratory. The government has certain rights in this invention.