EP 0518567 A1 19921216 - Synthetic lubricant base stock formed from high content branched chain acid mixtures.
Title (en)
Synthetic lubricant base stock formed from high content branched chain acid mixtures.
Title (de)
Aus mit einem hohen Gehalt an verzweigten kettigen Säurenmischungen hergestellte synthetische Grundschmieröle.
Title (fr)
Base lubrifiante synthétique formée à partir de mélanges d'acides dont une grande partie à chaînes ramifiées.
Publication
Application
Priority
US 71219091 A 19910607
Abstract (en)
An improved synthetic ester lubricant base stock formed by reacting a neopentyl polyol with a mixture of aliphatic monocarboxylic acids is provided. The mixture of acids includes straight-chain acids having from 5 to 10 carbon atoms and an iso-acid having from 7 to 10 carbon atoms, preferably iso-nonanoic acid, wherein the iso-acid is present in about 60-90 weight percent of the acid charge. The base stock is mixed with a conventional ester lubricant additive package to form a lubricant having a viscosity at 210 DEG F. of at least 7.0 centistockes with the resulting lubricants having a decreased tendency to form deposits in high temperature chain oil applications.
IPC 1-7
IPC 8 full level
C10M 105/38 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 30/08 (2006.01); C10N 30/10 (2006.01); C10N 40/32 (2006.01)
CPC (source: EP)
C10M 105/38 (2013.01); C10M 2207/281 (2013.01); C10M 2207/282 (2013.01); C10M 2207/283 (2013.01); C10M 2207/286 (2013.01); C10N 2040/00 (2013.01); C10N 2040/06 (2013.01); C10N 2040/135 (2020.05); C10N 2040/25 (2013.01); C10N 2040/251 (2020.05); C10N 2040/255 (2020.05); C10N 2040/28 (2013.01); C10N 2040/30 (2013.01); C10N 2040/32 (2013.01); C10N 2040/34 (2013.01); C10N 2040/36 (2013.01); C10N 2040/38 (2020.05); C10N 2040/40 (2020.05); C10N 2040/42 (2020.05); C10N 2040/44 (2020.05); C10N 2040/50 (2020.05)
Citation (search report)
- [E] EP 0498152 A1 19920812 - CPI ENG SERVICES INC [US]
- [YD] US 4826633 A 19890502 - CARR DALE D [US], et al
- [XP] EP 0458584 A1 19911127 - UNICHEMA CHEMIE BV [NL]
- [XP] EP 0435253 A1 19910703 - NIPPON OIL CO LTD [JP]
- [X] EP 0406479 A1 19910109 - KYOSEKI SEIHIN GIJUTSU KENK [JP]
- [X] EP 0272575 A2 19880629 - HENKEL KGAA [DE]
- [A] FR 1553235 A 19690110
- [A] FR 2034835 A1 19701218 - RUHRCHEMIE AG
- [XD] PATENT ABSTRACTS OF JAPAN vol. 4, no. 159 (C-030)6 November 1980 & JP-A-55 105 644 ( NIPPON OIL & FATS CO LTD )
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0518567 A1 19921216; EP 0518567 B1 20000913; DE 69231433 D1 20001019; DE 69231433 T2 20010523; JP H0665587 A 19940308
DOCDB simple family (application)
EP 92305169 A 19920605; DE 69231433 T 19920605; JP 17379092 A 19920608