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Nonaqueous ozonation of vulcanized rubber

United States Patent

5,998,490
December 7, 1999
View the Complete Patent at the US Patent & Trademark Office
Savannah River National Laboratory - Visit the Technology Transfer Website
A process and resulting product is provided in which a solid particulate, such as vulcanized crumb rubber, has the surface functional groups oxidized by ozonation using a nonpolar solvent. The ozonation process renders the treated crumb rubber more suitable for use in new rubber formulations. As a result, larger loading levels of the treated crumb rubber can be used in new rubber mixtures.
Serkiz; Steven M. (Aiken, SC)
Westinghouse Savannah River Company (Aiken, SC)
08/ 853,130
May 8, 1997
The United States Government has rights to this invention pursuant to contract number DE-AC09-89SR18035 between the U.S. Department of Energy and Westinghouse Savannah River Company.