Church & Dwight Co., Inc. has purchased the remaining 50% of Armkel, LLC that it did not own, from Kelso & Company, a private equity group. As previously announced, the purchase price was $254 million. The company said that financing had been arranged through a group of banks led by JPMorgan and Citigroup.“Completion of the purchase is another step in our long-term strategy to build businesses around brands that are leaders in their markets,” said Robert A. Davies, III, Chu...