(19)

(11)

EP 0 990 379 A1

(12)

(43) Date of publication: 05.04.2000 Bulletin 2000/14 (21) Application number: 98903009.3 (22) Date of filing: 15.01.1998

(51) International Patent Classification (IPC)7: H05K 13/00 (86) International application number: PCT/EP9800/214 (87) International publication number: WO 9839/958 (11.09.1998 Gazette 1998/36)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL (30) Priority: 05.03.1997 EP 97103632 (71) Applicant: Ciba Specialty Chemicals Holding Inc. 4057 Basel (CH)	(72) Inventors: RÜEGGE, Anton CH-4123 Allschwil (CH) KRAFT, Gerhard D-79400 Kandern (DE) RECKERT, Torsten Glendale, CA 91204 (US) KUSTER, Kaspar CH-4057 Basel (CH) (74) Representative: Klingseisen, Franz, Dipl.-Ing. et al Patentanwälte,Dr. F. Zumstein,Dipl.-Ing. F. Klingseisen,Postfach 10 15 61 80089 München 80089 München (DE)