EP 4281528 A1 20231129 - METHOD FOR MAKING BASE OIL WITH ENHANCED COLOR STABILITY
Title (en)
METHOD FOR MAKING BASE OIL WITH ENHANCED COLOR STABILITY
Title (de)
VERFAHREN ZUR HERSTELLUNG VON BASISÖL MIT VERBESSERTER FARBSTABILITÄT
Title (fr)
PROCÉDÉ DE FABRICATION D'HUILE DE BASE AYANT UNE STABILITÉ DE COULEUR AMÉLIORÉE
Publication
Application
Priority
- US 202163138796 P 20210119
- US 202117154099 A 20210121
- US 2022012698 W 20220118
Abstract (en)
[origin: WO2022159358A1] A method for making a base oil having enhanced color stability and the base oil prepared therefrom are disclosed. The method comprises adding a phenyl benzotriazole compound to a base oil composition to form a color-stabilized base oil composition. In some cases, the phenyl benzotriazole compound has the structural formula (I): wherein, R and R' are independently one or more substituents selected from hydrogen, substituted and unsubstituted alkyl, substituted and unsubstituted cycloalkyl, substituted and unsubstituted alkoxy, substituted and unsubstituted carboxyl, or a combination thereof, with the proviso that at least one of R and R' is a non-hydrogen substituent.
IPC 8 full level
C10M 133/44 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01)
CPC (source: EP KR US)
C10M 133/14 (2013.01 - KR); C10M 133/44 (2013.01 - EP US); C10M 169/04 (2013.01 - US); C10M 2203/003 (2013.01 - US); C10M 2203/1006 (2013.01 - EP KR US); C10M 2215/223 (2013.01 - EP KR US); C10N 2020/02 (2013.01 - EP KR US); C10N 2030/32 (2020.05 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022159358 A1 20220728; BR 112023014393 A2 20230926; CA 3208347 A1 20220728; EP 4281528 A1 20231129; JP 2024503483 A 20240125; KR 20230131234 A 20230912; TW 202246475 A 20221201; US 2024110120 A1 20240404
DOCDB simple family (application)
US 2022012698 W 20220118; BR 112023014393 A 20220118; CA 3208347 A 20220118; EP 22702585 A 20220118; JP 2023543165 A 20220118; KR 20237026537 A 20220118; TW 111102266 A 20220119; US 202218262171 A 20220118