(19)

(11)

EP 0 271 562 A1

(12)

(43) Date of publication: 22.06.1988 Bulletin 1988/25 (21) Application number: 87904438.0 (22) Date of filing: 17.06.1987

(51) International Patent Classification (IPC):  H05K 3/ 28( . ) H05K 3/ 24( . ) H05K 3/ 10( . ) H05K 3/ 42( . ) H05K 3/ 06( . ) H05K 3/ 38( . ) H05K 3/ 34( . ) (86) International application number: PCT/US1987/001433 (87) International publication number: WO 1987/007981 (30.12.1987 Gazette 1987/29)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 18.06.1986 US 19860875485 (71) Applicant: MACDERMID, INCORPORATED Waterbury, CT 06708 (US)	(72) Inventors: KUKANSKIS, Peter, E. Woodbury, CT 06798 (US) COBB, Charles, T. Simsbury, CT 06070 (US) LETIZE, Raymond, A. West Haven, CT 06516 (US) WILLIAMS, Ann, S. Southbury, CT 06488 (US) MONTFORT, Anne Cheshire, CT 06410 (US) SLOMINSKI, Leo, J. Bristol, CT 06010 (US) (74) Representative: Warren, Anthony Robert  BARON & WARREN, 18 South End, Kensington London W8 5BU London W8 5BU (GB)