(19)

(11)

EP 0 404 823 A1

(12)

(43) Date of publication: 02.01.1991 Bulletin 1991/01 (21) Application number: 89904137.0 (22) Date of filing: 17.03.1989

(51) International Patent Classification (IPC):  C03C 14/ 00( . ) C09K 3/ 14( . ) C08J 5/ 14( . ) F16D 69/ 02( . ) (86) International application number: PCT/GB1989/000285 (87) International publication number: WO 1989/008685 (21.09.1989 Gazette 1989/23)

(84) Designated Contracting States: DE FR GB NL (30) Priority: 19.03.1988 GB 19880006600 (71) Applicant: LUCAS INDUSTRIES PUBLIC LIMITED COMPANY Solihull, West Midlands B91 3TX (GB)	(72) Inventor: PUGH, Kenneth, Roy, Leonard Birmingham B20 1EE (GB) (74) Representative: Pearce, Anthony Richmond, et al  MARKS & CLERK, Alpha Tower, Suffolk Street Queensway Birmingham B1 1TT Birmingham B1 1TT (GB)