Palladium Equity Partners, a middle market private equity firm with approximately $3 billion in assets under management, has acquired Accupac, a U.S. provider of outsourced manufacturing and packaging solutions for the personal care and beauty markets, from J.H. Whitney Capital Partners.   Accupac offers complex formulation capabilities, specializing in liquid topical and oral care products, including skin creams, toothpastes and other personal care products. The Pennsylvania-based company is di...