(19)

(11)

EP 0 233 201 A1

(12)

(43) Date of publication: 26.08.1987 Bulletin 1987/35 (21) Application number: 86904002.0 (22) Date of filing: 09.06.1986

(51) International Patent Classification (IPC):  H05K 3/ 24( . ) H05K 3/ 42( . ) H05K 3/ 28( . ) H05K 3/ 34( . ) H05K 3/ 06( . ) (86) International application number: PCT/US1986/001270 (87) International publication number: WO 1987/000938 (12.02.1987 Gazette 1987/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 08.08.1985 US 19850763812 (71) Applicant: MACDERMID, INCORPORATED Waterbury, CT 06708 (US)	(72) Inventors: LARSON, Gary, B. Cheshire, CT 06410 (US) RUSZCZYK, Stanley, J. Naugatuck, CT 06770 (US) CASTALDI, Steven, A. Waterbury, CT 06705 (US) (74) Representative: Bankes, Stephen Charles Digby  BARON & WARREN 18 South End Kensington London W8 5BU London W8 5BU (GB)