Edward E. Barr has announced his intention to retire as chairman, Sun Chemical Group B.V., on Jan. 1, 2003. Mr. Barr will be succeeded as chairman by Wes Lucas, Sun Chemical’s president and CEO. Mr. Barr will continue as Sun Chemical’s designated senior director of Kodak Polychrome Graphics, the company’s pre-press joint venture with Eastman Kodak.      Mr. Barr’s retirement concludes more than 40 years of executive association with Sun Chemical, which began in April 1962. During this period,...