(19)

(11)

EP 0 677 208 A1

(12)

(43) Date of publication: 18.10.1995 Bulletin 1995/42 (21) Application number: 94904345.0 (22) Date of filing: 29.12.1993

(51) International Patent Classification (IPC):  C07D 333/ 08( . ) C08G 61/ 10( . ) C08G 77/ 60( . ) H01L 33/ 00( . ) H01L 51/ 50( . ) C07D 333/ 32( . ) C08G 61/ 12( . ) C09K 11/ 06( . ) H01L 51/ 30( . ) H01L 51/ 00( . ) (86) International application number: PCT/NL1993/000280 (87) International publication number: WO 1994/015368 (07.07.1994 Gazette 1994/15)

(84) Designated Contracting States: BE CH DE DK ES FR GB GR IE IT LI NL SE (30) Priority: 29.12.1992 EP 19920204100 08.06.1993 EP 19930201637 (71) Applicant: Rijksuniversiteit te Groningen NL-9712 CP Groningen (NL)

(72) Inventors: HADZIIOANNOU, Georges NL-9322 El Peize (NL) HERREMA, Jan NL-9747 AG Groningen (NL) WILDEMAN, Jurgen NL-9747 AG Groningen (NL) Gill, Richard NL-9747 AG Groningen (NL) WIERINGA, Reini NL-9747 AG Groningen (NL) MALLIARIS, George NL-9747 AG Groningen (NL) (74) Representative: Smulders, Theodorus A.H.J., Ir., et al  Vereenigde Octrooibureaux Nieuwe Parklaan 97 NL-2587 BN 's-Gravenhage NL-2587 BN 's-Gravenhage (NL)