Wacker Chemie AG has successfully concluded its acquisition of full ownership of Air Products Polymers (APP) and Wacker Polymer Systems (WPS), its two joint ventures with Air Products and Chemicals, Inc.      The transaction announced in December 2007 has now been cleared by the European and U.S. antitrust authorities.                   Wacker’s stake in APP had been 35 percent, with Air Products holding the remaining 65 percent. As for WPS, Wacker held 80 percent and Air Products, 20 perce...