(19)
(11) EP 0 637 332 A1

(12)

(43) Date of publication:
08.02.1995 Bulletin 1995/06

(21) Application number: 94908725.0

(22) Date of filing: 04.02.1994
(51) International Patent Classification (IPC): 
C08F 20/ 18( . )
C08F 220/ 18( . )
C10N 20/ 02( . )
C10N 30/ 02( . )
C08F 220/ 10( . )
C10M 145/ 14( . )
C10N 20/ 04( . )
C10N 40/ 04( . )
(86) International application number:
PCT/US1994/001322
(87) International publication number:
WO 1994/018288 (18.08.1994 Gazette 1994/19)
(84) Designated Contracting States:
BE DE ES GB IT NL SE

(30) Priority: 04.02.1993 FR 19930001229

(71) Applicant: THE LUBRIZOL CORPORATION
Wickliffe, Ohio 44092-2298 (US)

(72) Inventors:
  • CANTIANI, Robert
    F-92800 Puteaux (FR)
  • RICHARD, Jo[l
    F-60500 Chantilly (FR)

(74) Representative: Crisp, David Norman 
D. YOUNG & CO. 21 New Fetter Lane
London EC4A 1DA
London EC4A 1DA (GB)

   


(54) SHEAR-STABLE VISCOSITY IMPROVER FOR LUBRICATING OILS