51.  Breakups of major drug and chemical companies are not unusual, although in recent years it has been mostly the drug divisions that have been sold or spun off.

52.  British stocks also rose, lead by gains in British Airways Plc, petroleum and chemical companies.

53.  Both chemical companies want to expand in higher value-added specialty chemicals and U.K. assets seem cheap right now, analysts said.

54.  Brunton conducted the study for Solvay Pharmaceuticals, a unit of the Belgian chemical company Solvay SA, which announced the results today.

55.  But DuPont was a chemical company long before it was a life sciences company, and old images die hard on Wall Street.

56.  But even the chemical companies that lobbied for the changes concede that the existing program has merit.

57.  But executives at Synthesia, the chemical company that manufactures the explosive, disagree.

58.  But chemical companies eventually learned that the polyester fiber could be stretched into a very thin, very clear, but highly impermeable and resilient product.

59.  But he said the chemical companies knew about those conditions and did not provide adequate warning.

60.  But even if the Senate does not approve it, the treaty still imposes restrictions on the exports of American chemical companies and subjects them to possible penalties.