Altana acquires Rockwood's rheology additives business for $635 million

02:57 AM | July 28, 2013 | Natasha Alperowicz and Deepti Ramesh

Altana (Wesel, Germany) says it has signed a definite agreement to acquire the global rheology business, or the clay-based additives business, of Rockwood Holdings, for $635 million. The unit,...