(19)

(11)

EP 0 934 345 A1

(12)

(43) Date of publication: 11.08.1999 Bulletin 1999/32 (21) Application number: 97947288.0 (22) Date of filing: 24.10.1997

(51) International Patent Classification (IPC):  C08F 8/ 42( . ) (86) International application number: PCT/US1997/019450 (87) International publication number: WO 1998/017695 (30.04.1998 Gazette 1998/17)

(84) Designated Contracting States: BE CH DE ES FR GB IT LI NL (30) Priority: 25.10.1996 US 19960738379 (71) Applicant: SMITHKLINE BEECHAM CORPORATION Philadelphia, PA 19102 (US)	(72) Inventor: CHENERA, Balan Audubon, PA 19403 (US) (74) Representative: Connell, Anthony Christopher, et al  SmithKline Beecham plc Corporate Intellectual Property, Two New Horizons Court Brentford, Middlesex TW8 9EP Brentford, Middlesex TW8 9EP (GB)