MODIFIED "JEFFAMINE T-403" AMINE CURING AGENT FOR EPOXY FORMULATIONS Sandia National Laboratories has a laboratory-scale chemical process which produces a by-product of modified "Jeffamine T-403" (commercial product of the Huntsman Corp.). "Jeffamine T-403" is a trifunctional amine used as a curing agent for epoxies such as Epon 828. Sandia's patented process utilizes the virgin "Jeffamine T-403" to degrade explosives such as TNT and Comp B into safe products. "Jeffamine T-403" is used as a reactant in the chemical reaction, then, after reacting, the modified-Jeffamine becomes part of the waste stream. This non-explosive, off-color, viscous "Jeffamine" by-product can still be used to make epoxy for use in applications which do not require virgin "Jeffamine." Epoxies made with this modified "Jeffamine" have altered mechanical properties, such as lower glass transition temperatures. However, the mechanical properties can be tailored for use in the final epoxy application. This chemical process is one of military interest. The Department of Defense and Department of Energy have funding to dispose of hundreds of thousands of tons of ammunition during the next decade. About 100,000 tons/year of new materials are added to this inventory. The huge inventory of obsolete military explosives are available for this process and will provide many tons of modified "Jeffamine T-403" for commercial applications. Sandia is interested in identifying potential users of the modified "Jeffamine T-403" amine curing agent and/or partnering with a commercial company to scale up the operation from laboratory scale to industrial proportions. Demilled explosives are available from Army Ammunition Plants to demonstrate the process and scale-up. For further information, please respond by mail or fax to Sheila Pounds by June 26, 2000 at: Sandia National Laboratories, MS 1380, P. O. Box 5800, Albuquerque, New Mexico 87185-1380. Fax: (505) 843-4163. Please indicate the date and title of this CBD notice and the type of partnering agreements your company would be most interested in entering into. E-MAIL: Sheila L. Pounds, slpound@sandia.gov. Posted 06/08/00 (W-SN462822).

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