(19)

(11)

EP 0 548 321 A1

(12)

(43) Date of publication: 30.06.1993 Bulletin 1993/26 (21) Application number: 92914895.0 (22) Date of filing: 30.06.1992

(51) International Patent Classification (IPC):  C09K( . ) C09K 5/ 04( . ) C10M 105/ 38( . ) C10M 105/ 44( . ) C10M 105/ 60( . ) C10M 105/ 70( . ) C10M 171/ 00( . ) F01P 5/ 14( . ) C10N 40/ 30( . ) C09K 3/ 30( . ) C10M 105/ 32( . ) C10M 105/ 42( . ) C10M 105/ 46( . ) C10M 105/ 62( . ) C10M 169/ 04( . ) F01M 1/ 24( . ) F02D 17/ 04( . ) (86) International application number: PCT/US1992/005340 (87) International publication number: WO 1993/001249 (21.01.1993 Gazette 1993/03)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 11.07.1991 US 19910728441 (71) Applicant: The Lubrizol Corporation Wickliffe, Ohio 44092 (US)	(72) Inventor: JOLLEY, Scott, Ted Mentor, OH 44060 (US) (74) Representative: Crisp, David Norman, et al  D. YOUNG & CO. 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)