Mold-Rite Plastics, a rigid plastic packaging manufacturer and portfolio company of Irving Place Capital, has acquired Stull Technologies in an add-on acquisition. New Jersey-based Stull manufactures dispensing closures, lids, caps and packaging components to a number of consumer-based industries. The company will fold into New York-based Mold-Rite, whose product line features plastic caps, child-resistant closures, vials, and jars used in the pharmaceutical, nutraceutical, and personal care markets. Irving Place acquired Mold-Rite through a 2010 leveraged buyout.