(19)

(11)

EP 0 340 250 A1

(12)

(43) Date of publication: 08.11.1989 Bulletin 1989/45 (21) Application number: 88906685.0 (22) Date of filing: 22.07.1988

(51) International Patent Classification (IPC):  C10M 129/ 02( . ) D06M 13/ 02( . ) D06M 13/ 188( . ) C10N 30/ 00( . ) C10M 129/ 70( . ) D06M 13/ 144( . ) D06M 13/ 224( . ) C10N 40/ 00( . ) (86) International application number: PCT/US1988/002498 (87) International publication number: WO 1989/001071 (09.02.1989 Gazette 1989/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 06.08.1987 US 19870082769 (71) Applicant: The Lubrizol Corporation Wickliffe, Ohio 44092 (US)	(72) Inventors: YODICE, Richard Mentor, OH 44060 (US) LENTZ, Gregory, A. Twinsburg, OH 44087 (US) (74) Representative: Crisp, David Norman, et al  D. YOUNG & CO. 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)