(19)

(11)

EP 0 247 153 A1

(12)

(43) Date of publication: 02.12.1987 Bulletin 1987/49 (21) Application number: 86907168.0 (22) Date of filing: 12.11.1986

(51) International Patent Classification (IPC):  G03F 7/ 40( . ) (86) International application number: PCT/US1986/002441 (87) International publication number: WO 1987/003387 (04.06.1987 Gazette 1987/12)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 27.11.1985 US 19850802514 29.01.1986 US 19860823942 27.06.1986 US 19860879385 (71) Applicant: MACDERMID, INCORPORATED Waterbury, CT 06708 (US)	(72) Inventors: GRUNWALD, John, J. New Haven, CT 06515 (US) SPENCER, Allen, C. Naugatuck, CT 06770 (US) (74) Representative: Bankes, Stephen Charles Digby  BARON & WARREN 18 South End Kensington London W8 5BU London W8 5BU (GB)