EP 1373443 A2 20040102 - OXIDATION-STABLE HYDRAULIC OIL
Title (en)
OXIDATION-STABLE HYDRAULIC OIL
Title (de)
OXIDATIONSSTABILES HYDRAULIKÖL
Title (fr)
HUILE HYDRAULIQUE STABLE A L'OXYDATION
Publication
Application
Priority
- DE 10115829 A 20010329
- EP 0203048 W 20020320
Abstract (en)
[origin: DE10115829A1] New synthetic esters of polyols and 16-18C unsaturated fatty acids have an iodine number of 65-100, a saponification number of 160-200 and an acid number of 3 or less. New synthetic esters of polyols of formula (I), with at least two hydroxyl groups, and 16-18C unsaturated fatty acids have an iodine number of 65-100, a saponification number of 160-200 and an acid number of 3 or less. R1 = H, Me or OH; and R2, R3 = Me or CH2OH. Independent claims are included for: (1) a process for producing synthetic polyol esters comprises reacting (I) with olefin at a temperature above 200 deg C for at least 3 hours under a nitrogen atmosphere and then distilling of fatty acids under reduced pressure, where the olefin has an iodine number of 60-130 and a cloud point below 11 deg C and comprises more than 65 wt.% oleic acid and less than 20 wt.% linoleic acid; and (2) a hydraulic oil comprising 90-99 wt.% of a synthetic ester as above and 1-10 wt.% additives.
IPC 1-7
IPC 8 full level
C07C 69/58 (2006.01); C10M 105/38 (2006.01); C10M 169/04 (2006.01)
CPC (source: EP US)
C07C 69/58 (2013.01 - EP US); C10M 105/38 (2013.01 - EP US); C10M 169/04 (2013.01 - EP US); C10M 2207/2835 (2013.01 - EP US); C10M 2207/288 (2013.01 - EP US); C10M 2215/04 (2013.01 - EP US); C10M 2215/223 (2013.01 - EP US); C10M 2223/04 (2013.01 - EP US); C10N 2020/013 (2020.05 - EP US); C10N 2020/04 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2030/10 (2013.01 - EP US); C10N 2030/18 (2013.01 - EP US); C10N 2040/08 (2013.01 - EP US); C10N 2040/12 (2013.01 - EP US); C10N 2070/02 (2020.05 - EP US)
Citation (search report)
See references of WO 02083607A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DE 10115829 A1 20021010; CA 2442236 A1 20021024; EP 1373443 A2 20040102; US 2004147411 A1 20040729; WO 02083607 A2 20021024; WO 02083607 A3 20030109
DOCDB simple family (application)
DE 10115829 A 20010329; CA 2442236 A 20020320; EP 0203048 W 20020320; EP 02742861 A 20020320; US 47305404 A 20040312