(19)

(11)

EP 1 165 629 A1

(12)

(43) Date of publication: 02.01.2002 Bulletin 2002/01 (21) Application number: 00906513.7 (22) Date of filing: 29.02.2000

(51) International Patent Classification (IPC)7: C08F 4/00, C08F 4/06, C08F 4/10 (86) International application number: PCT/GB0000/712 (87) International publication number: WO 0053/643 (14.09.2000 Gazette 2000/37)

(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: 05.03.1999 GB 9905084 23.07.1999 GB 9917390 (71) Applicant: Dow Corning Corporation Midland, Michigan 48611 (US)	(72) Inventors: HABIMANA, Jean de la Croi B-7090 Braine le Comte (BE) CHEVALIER, Pierre Penarth CF64 3DA (GB) TAPPER, Tristan Cardiff CF24 4JW (GB) (74) Representative: Davies, Peter Vaughan et al Dow Corning Limited, Intellectual Property Department, Cardiff Road Barry, CF63 2YL Barry, CF63 2YL (GB)