By David Reed, UT EditorWyandotte, Michigan-BASF Corp. will increase the price of all grades of its Elastollan thermoplastic polyurethane (TPU) resins, concentrates and additives by 8 percent in North America, effective 1 May 2005."This increase reflects the ongoing strong demand for TPU and the need to address the prolonged escalation of energy, feedstock and transportation costs," said James Lausch, director of BASF's TPU business in North America, in a 4 April statement issued by the firm."