Mar 11, 2011. /Lesprom Network/. Dr. Uwe Liebelt will become President of BASF’s Paper Chemicals division, located in Basel, Switzerland, effective April 1, 2011, as the company said in a press release received by Lesprom Network. Liebelt is currently Senior Vice President, Dispersions & Pigments North America located in Charlotte, North Carolina. Dr. Ehrenfried Baumgartner, current President of the Paper Chemicals division, is retiring.