EP 4326840 A1 20240228 - POLYMERIC POUR POINT DEPRESSANTS FOR WAXY CRUDE OILS
Title (en)
POLYMERIC POUR POINT DEPRESSANTS FOR WAXY CRUDE OILS
Title (de)
POLYMERE STOCKPUNKTERNIEDRIGER FÜR WACHSHALTIGE ROHÖLE
Title (fr)
ABAISSEURS DE POINT D'ÉCOULEMENT POLYMÈRES POUR HUILES BRUTES PARAFFINEUSES
Publication
Application
Priority
- US 202117236635 A 20210421
- EP 21174872 A 20210520
- EP 2022050529 W 20220112
Abstract (en)
[origin: WO2022223153A1] This invention relates a wax inhibitor for hydrocarbon oils comprising an esterified copolymer having repeating structural units derived from an esterified ethylenically unsaturated dicarboxylic acid and α-olefins having at least 18 carbon atoms, whereof at least 3 mol-% of the α-olefins have 30 or more carbon atoms, and wherein the ethylenically unsaturated dicarboxylic acid has been esterified with a mixture of alcohols comprising i) 70 to 97 mol-% of a saturated fatty alcohol having 18 to 24 carbon atoms and ii) 3 to 30 mol-% of an unsaturated alcohol having 16 to 24 carbon atoms.
IPC 8 full level
C10L 1/14 (2006.01); C10L 1/16 (2006.01); C10L 1/196 (2006.01); C10L 10/16 (2006.01)
CPC (source: EP)
C10L 1/146 (2013.01); C10L 1/1641 (2013.01); C10L 1/1966 (2013.01); C10L 10/16 (2013.01)
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 2022223153 A1 20221027; BR 112023021176 A2 20231219; CA 3217341 A1 20221027; EP 4326840 A1 20240228
DOCDB simple family (application)
EP 2022050529 W 20220112; BR 112023021176 A 20220112; CA 3217341 A 20220112; EP 22701178 A 20220112