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(11)

EP 1 137 737 A1

(12)

(43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99954281.4 (22) Date of filing: 15.11.1999

(51) International Patent Classification (IPC)7: C09K 19/34 (86) International application number: PCT/IB9901/831 (87) International publication number: WO 0031/211 (02.06.2000 Gazette 2000/22)

(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: 23.11.1998 GB 9825628 (71) Applicant: Rolic AG 6301 Zug (CH)	(72) Inventors: OHLEMACHER, Angela D-79650 Schopfheim-Wiechs (DE) FÜNFSCHILLING, Jürg CH-4054 Basel (CH) (74) Representative: Liebetanz, Michael, Dipl.-Phys. et al Isler & Pedrazzini AG,Patentanwälte,Postfach 6940 8023 Zürich 8023 Zürich (CH)