(19)
(11) EP 1 844 128 A1

(12)

(43) Date of publication:
17.10.2007 Bulletin 2007/42

(21) Application number: 05853765.5

(22) Date of filing: 13.12.2005
(51) International Patent Classification (IPC): 
C10M 169/04(2006.01)
C10M 161/00(2006.01)
(86) International application number:
PCT/US2005/044925
(87) International publication number:
WO 2006/068866 (29.06.2006 Gazette 2006/26)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 22.12.2004 US 638437 P

(71) Applicant: The Lubrizol Corporation
Wickliffe, OH 44092 (US)

(72) Inventors:
  • BREON, Lewis, D.
    Wickliffe, OH 44092 (US)
  • PATEL, Jayram, D.
    Wickliffe, OH 44092 (US)
  • SAMBUCHINO, Roy
    Wickliffe, OH 44092 (US)
  • WILKES, Mark, F.
    Belper Derby DE56 1QN (GB)
  • GRIFFITHS, Simon
    Belper Derby DE56 1QN (GB)
  • PRICE, David
    Belper Derby DE56 1QN (GB)
  • GAHAGAN, Michael, P.
    Belper Derby DE56 1QN (GB)

(74) Representative: Bradley, Josephine Mary 
D Young & Co 120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)

   


(54) METHOD OF VISCOSITY CONTROL