(19)

(11)

EP 0 512 068 A1

(12)

(43) Date of publication: 11.11.1992 Bulletin 1992/46 (21) Application number: 91904633.0 (22) Date of filing: 24.01.1991

(51) International Patent Classification (IPC):  B29C 55/ 02( . ) C08J 5/ 00( . ) C08L 23/ 06( . ) C08L 33/ 18( . ) C08L 67/ 02( . ) C08L 77/ 00( . ) D01F 6/ 46( . ) H01B 1/ 12( . ) B29L 7/ 00( . ) B29C 55/ 00( . ) C08L 23/ 02( . ) C08L 25/ 00( . ) C08L 67/ 00( . ) C08L 73/ 00( . ) C08L 87/ 00( . ) H01B 1/ 00( . ) H01B 1/ 20( . ) (86) International application number: PCT/US1991/000504 (87) International publication number: WO 1991/011325 (08.08.1991 Gazette 1991/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 24.01.1990 US 19900468737 27.12.1990 US 19900635455 (71) Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA Oakland, California 94612-3550 (US)	(72) Inventors: HEEGER, Alan, J. Santa Barbara, CA 93013 (US) SMITH, Paul Santa Barbara, CA 93105 (US) TOKITO, Shizuo Chuo, Onojo-shi, Fukuoka 816 (JP) MOULTON, Jeffrey, D. Santa Barbara, CA 93101 (US) (74) Representative: Goldin, Douglas Michael, et al  J.A. KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)