DuPont has named Douglas Smith market segment manager for its custom liquid colorants and fine particle dispersions business. The business provides customers with a range of individualized services from initial development through ongoing manufacture. DuPont Specialty Colorants and Additives is part of DuPont Coatings and Color Technologies.      Prior to this announcement, Mr. Smith was OEM market segment manager for the DuPont Ink Jet business.      “It’s exciting to bring our experience...