(19)
(11) EP 1 446 466 A1

(12)

(43) Date of publication:
18.08.2004 Bulletin 2004/34

(21) Application number: 02776150.1

(22) Date of filing: 04.10.2002
(51) International Patent Classification (IPC)7C10M 161/00
// (C10M161/00, 129:00, 129:76, 133:12, 149:04, 149:06), C10M149:10,(C10M161/00, 129:10, 129:76, 133:12, 143:00, 143:02), C10M145:16,(C10N30/02, 30:04, 60:00)
(86) International application number:
PCT/US2002/031830
(87) International publication number:
WO 2003/048281 (12.06.2003 Gazette 2003/24)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

(30) Priority: 29.11.2001 US 995773

(71) Applicant: Crompton Corporation
Middlebury, Connecticut 06749 (US)

(72) Inventors:
  • DUYCK, Karl
    Waterbury, CT 06708 (US)
  • NALESNIK, Theodore, E.
    Hopewell Junction, NY 12533 (US)

(74) Representative: Spott, Gottfried, Dr. et al
Spott & WeinmillerPatentanwälteSendlinger-Tor-Platz 11
80336 München
80336 München (DE)

   


(54) VISCOSITY GROWTH INHIBITION IN OIL ADDITIVE CONCENTRATES