(19)

(11)

EP 0 563 338 A1

(12)

(43) Date of publication: 06.10.1993 Bulletin 1993/40 (21) Application number: 92915802.0 (22) Date of filing: 14.07.1992

(51) International Patent Classification (IPC):  C10M 109/ 02( . ) C08L 71/ 02( . ) C10M 159/ 12( . ) C10N 10/ 02( . ) C10N 20/ 04( . ) C10N 30/ 12( . ) C10N 40/ 22( . ) C08G 65/ 332( . ) C10M 133/ 56( . ) C10M 173/ 02( . ) C10N 10/ 04( . ) C10N 30/ 02( . ) C10N 40/ 08( . ) (86) International application number: PCT/US1992/005878 (87) International publication number: WO 1993/002167 (04.02.1993 Gazette 1993/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 18.07.1991 US 19910731968 (71) Applicant: THE LUBRIZOL CORPORATION Wickliffe, Ohio 44092-2298 (US)	(72) Inventors: FORSBERG, John, W. Mentor, OH 44060 (US) JAHNKE, Richard, W. Mentor, OH 44060 (US) (74) Representative: Mallalieu, Catherine Louise, et al  D. Young & Co., 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)