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(11)

EP 1 397 440 A1

(12)

(43) Date of publication: 17.03.2004 Bulletin 2004/12 (21) Application number: 02726947.1 (22) Date of filing: 30.05.2002

(51) International Patent Classification (IPC)7: C09C 1/56, C09C 1/46, C09C 1/44, C02F 1/28, C09D 7/12, C09D 11/00, C09D 11/02 (86) International application number: PCT/US2002/016941 (87) International publication number: WO 2002/098991 (12.12.2002 Gazette 2002/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 01.06.2001 US 295316 P (71) Applicant: THE LUBRIZOL CORPORATION Wickliffe,Ohio 44092-2298 (US)

(72) Inventors: BURRINGTON, James, D. Mayfield Village, OH 44143 (US) DAVIS, Kirk, E. Chesterland, OH 44026 (US) JOLLEY, Scott, T. Mentor, OH 44060 (US) KORNBREKKE, Ralph, E. Chagrin Falls, OH 44023 (US) PIALET, Joseph, W. Euclid, OH 44132 (US) PIKE, Philip, W. Concord Township, OH 44060 (US) SOWERBY, Roger, L. Concord Township, OH 44077 (US) (74) Representative: Mallalieu, Catherine Louise et al D. Young & Co.,21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)