(19)

(11)

EP 0 680 379 A1

(12)

(43) Date of publication: 08.11.1995 Bulletin 1995/45 (21) Application number: 94904103.0 (22) Date of filing: 11.01.1994

(51) International Patent Classification (IPC):  B02C 18/ 14( . ) B02C 19/ 22( . ) (86) International application number: PCT/AU1994/000015 (87) International publication number: WO 1994/016818 (04.08.1994 Gazette 1994/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.01.1993 AU 1993PL06871 (71) Applicant: MARVOL AUSTRALIA PTY. LIMITED Bondi Junction, NSW 2022 (AU)	(72) Inventor: KLOCHKO, Prokofi Ivanovich Moscow, 12 (RU) (74) Representative: Jackson, Peter Arthur  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)