Walter H. Waddell is a retired ExxonMobil Chemical senior research associate and consultant to the tire and rubber industry with expertise in silica technology,[1] rubber compounding,[2] butyl polymer applications[3] and tire aging.
Waddell's first professional post was as an associate professor of chemistry at Carnegie-Mellon University.
In 1990 he joined PPG Industries as a senior scientist developing silica technology.
In 1996 he joined ExxonMobil as a senior research associate in specialty Polymers Technology, retiring in 2015.
He holds an appointment as an adjunct professor at Beijing University of Chemical Technology.