(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