Sun Chemical has announced that Wes Lucas has joined the company as president as of August 1. The announcement was made by Henri Dyner, who retains the title and full responsibilities of chief executive officer.      “Wes Lucas brings an exceptionally strong background to the job of Sun Chemical’s president, notably in the areas of sales growth, operational productivity, building companies and start-ups,” Mr. Dyner said. “In addition, Wes brings a values-driven leadership style that has been h...