Stepan, a manufacturer of specialty and intermediate chemicals, completed the acquisition of aromatic polyester polyol business of INVISTA, a chemical manufacturer. Financial terms were not disclosed. "This acquisition expands our manufacturing capability in both the United States and Europe, enhances our business continuity capabilities for the market and supports the growth of our global rigid polyol business. We expect that INVISTA's available spare capacity, plus debottlenecking opportunities in both plants, will allow Stepan to support market growth in a capital efficient way," F. Quinn Stepan, Stepan Chairman and CEO.