EP 1520903 A1 20050406 - Use of polyalfaolefins (pao) derived from 1-dodecene or 1-tetradecene to imrove thermal stability of engine oils in internal combustion engines
Title (en)
Use of polyalfaolefins (pao) derived from 1-dodecene or 1-tetradecene to imrove thermal stability of engine oils in internal combustion engines
Title (de)
Verwendung von Polyalphaolefins(pao) von 1-Dodecen oder 1-Tetradecen zur Verbesserung der thermischen Stabilität von Motoröl in Verbrennunskraftmaschinen
Title (fr)
Utilisation des polyolefines (pao) derivées de 1-dodecene ou 1-tetradecene pour améliorer la stabilité thermique des huiles de moteur dans les moteur à combustion interne
Publication
Application
Priority
- EP 04027778 A 19990127
- EP 99900590 A 19990127
- EP 98400204 A 19980130
Abstract (en)
The present invention relates to compositions of automotive engine oils using synthetic polyalphaolefins derived from olefins other than 1-decene, especially 1-dodecene, to improve engine oil performance, as demonstrated by the severe Volkswagen T-4, Volkswagen TDI, and Sequence IIIE tests.
IPC 1-7
IPC 8 full level
C07C 2/06 (2006.01); C10M 107/10 (2006.01); C10M 111/04 (2006.01)
CPC (source: EP)
C10M 107/10 (2013.01); C10M 111/04 (2013.01); C10N 2020/02 (2013.01); C10N 2030/08 (2013.01); C10N 2040/252 (2020.05); C10N 2040/253 (2020.05)
Citation (search report)
- [X] US 4218330 A 19800819 - SHUBKIN RONALD L [US]
- [X] GB 2307243 A 19970521 - ALBEMARLE S A [BE]
- [A] GB 2078776 A 19820113 - NIPPON PETROCHEMICALS CO LTD
- [A] GB 1264981 A 19720223
- [A] US 3763244 A 19731002 - SHUBKIN R
- [A] DATABASE WPI Section Ch Week 9403, Derwent World Patents Index; Class A17, AN 94-023131, XP002068813
Designated contracting state (EPC)
AT BE DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04027778 A 19990127