Altana to buy Rockwood: report

FRANKFURT (Reuters) - Germany's Altana (ALTG.DE) wants to buy U.S. specialty chemicals group Rockwood Holdings (ROC.N) for 4 billion euros ($6.2 billion), a German magazine said on Friday.

Manager Magazin reported in its online edition that Altana had declined to comment beyond saying that acquisitions were part of its strategy.

Altana was not immediately available for comment.

Rockwood is 80 percent owned by private equity investor KKR, the magazine said.