(19)

(11)

EP 0 362 345 A1

(12)

(43) Date of publication: 11.04.1990 Bulletin 1990/15 (21) Application number: 89903969.0 (22) Date of filing: 23.03.1989

(51) International Patent Classification (IPC):  B01F 7/ 00( . ) B28B 7/ 38( . ) C04B 20/ 12( . ) C04B 41/ 62( . ) B01F 15/ 00( . ) C04B 20/ 10( . ) C04B 41/ 46( . ) C09C 1/ 00( . ) (86) International application number: PCT/AU1989/000126 (87) International publication number: WO 1989/009122 (05.10.1989 Gazette 1989/24)

(84) Designated Contracting States: DE FR GB IT NL SE (30) Priority: 28.03.1988 AU 19880007484 (71) Applicants: ROBERTS, Steven Carlingford, NSW 2118 (AU) TAYLOR, Gary Carlingford, NSW 2118 (AU)	(72) Inventors: ROBERTS, Steven Carlingford, NSW 2118 (AU) TAYLOR, Gary Carlingford, NSW 2118 (AU) (74) Representative: SERJEANTS  25, The Crescent King Street Leicester, LE1 6RX Leicester, LE1 6RX (GB)