BOSTON - Rohm & Haas Co. named Pierre R. Brondeau president and COO. Brondeau most recently served as executive vice president and business group executive for Rohm & Haas. The board of directors also approved the formation of a chairman's committee to oversee the direction of the company. The chairman's committee will be made up of Raj. L. Gupta, chairman and chief executive; Brondeau; and Jacques M. Croisetiere, executive vice president and chief financial officer.