Mitsui Chemicals Inc. has announced that group company SDC Technologies Inc. acquired COTEC GmbH, a manufacturer, developer, and researcher of physical vapor deposition (PVD) and molecular layer deposition (MLD) materials for hydrophobic, oleophobic, and antireflective coatings in the ophthalmic, precision optics, automotive, and display markets. COTEC became a wholly owned subsidiary of SDC on October 1. The move follows earlier Mitsui acquisitions in the last decade, of antifog coating specialist FSI Coating Technologies Inc. and UV-curable hard coatings producers LTI Coatings Technologies. Mitsui, in a press release, said it plans to continue expanding the portfolio of its Vision Care Materials Division. With COTEC’s thin-film coating technology, SDC is now able to provide coating materials for all layers of a complete eyewear lens coating stack, said SDC President and CEO Antonios Grigoriou.