The purchase price amounts to $635 million. The closing of the transaction is expected to take place in the fourth quarter of 2013.
With the acquisition ALTANA is expanding its existing additives portfolio. "The acquisition of Rockwood's rheology business is fully in line with our focus on true specialty chemicals and opens up new growth opportunities," ALTANA CEO Matthias L. Wolfgruber said. Rheology additives are amongst others used in coatings, construction materials and personal care products. They can, for example, ensure that coatings have the right viscosity and that they can be applied without forming droplets or bubbles.
"The acquisition is associated with an attractive growth potential," said Christoph Schlünken, president division BYK Additives and Instruments. "We will for example use the existing BYK structure to grow the acquired rheology business in Asia."
Currently approximately 40 percent of Rockwood's rheology sales are generated each in North America and Europe.
With the acquisition ALTANA's sales are expected to reach approximately € EUR 1.9 billion. There will be four additional production sites: Gonzales (Texas), Louisville (Kentucky), Widnes (UK) and Moosburg (Germany). The number of employees will rise to about 5,700.
In 2012, ALTANA achieved sales of more than €1.7 billion.