(19)

(11)

EP 1 109 846 A1

(12)

(43) Date of publication: 27.06.2001 Bulletin 2001/26 (21) Application number: 99930948.7 (22) Date of filing: 13.07.1999

(51) International Patent Classification (IPC)7: C08F 220/56, C08F 220/38, G02B 1/04 (86) International application number: PCT/AU9900/575 (87) International publication number: WO 0004/065 (27.01.2000 Gazette 2000/04)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 13.07.1998 AU PP463998 (71) Applicant: UNISEARCH LIMITED KensingtonNew South Wales, 2033 (AU)	(72) Inventor: DAVIS, Thomas Paul Kensington, NSW 2033 (AU) (74) Representative: Plougmann, Vingtoft & Partners A/S  Sankt Annae Plads 11,P.O. Box 3007 1021 Copenhagen K 1021 Copenhagen K (DK)