Carlyle Group LP announced Thursday it will acquire DuPont's performance coatings business for $4.9 billion in cash and the assumption of $250 million of unfunded pension liabilities. The deal brings Carlyle's 2012 total of announced deals to $15.8 billion on 17 deals, double that of its closest competitor Apollo Global Management, with $7.9 billion in announced deal values through Aug. 30.