2006/902/EC: Commission Decision of 21 December 2005 relating to a proceeding under Article 81 of the Treaty establishing the European Community and Article 53 of the EEA Agreement against Flexsys NV, Bayer AG, Crompton Manufacturing Company Inc. (former Uniroyal Chemical Company Inc.), Crompton Europe Ltd, Chemtura Corporation (former Crompton Corporation), General Química SA, Repsol Química SA and Repsol YPF SA. (Case No COMP/F/C.38.443 — Rubber chemicals) (notified under document number (2005) 5592) (Text with EEA relevance)