Superior Materials announces the expansion of their sales team with the addition of two new sales people. Steve Price, based near Philadelphia, will handle the territory in the Mid-Atlantic region, including Virginia and West Virginia. Price, a graduate of Towson University, comes to Superior from a sales and marketing position with CBS.   Henry Colmenares, an industry veteran of 20 years, will be primarily responsible for personal care and cosmetic accounts in the tri-state metropolitan area....