EP 1294832 B1 20040908 - ADDITIVES FOR IMPROVING THE COLD FLOW PROPERTIES AND THE STORAGE STABILITY OF CRUDE OIL
Title (en)
ADDITIVES FOR IMPROVING THE COLD FLOW PROPERTIES AND THE STORAGE STABILITY OF CRUDE OIL
Title (de)
ADDITIVE ZUR VERBESSERUNG VON KALTFLIESSEIGENSCHAFTEN UND LAGERSTABILITÄT VON ROHÖLEN
Title (fr)
ADDITIF POUR AMELIORER LA FUIDITE A FROID ET LA STABILITE AU STOCKAGE DU PETROLE BRUT
Publication
Application
Priority
- DE 10029621 A 20000615
- DE 10106146 A 20010210
- EP 0106414 W 20010606
Abstract (en)
[origin: US6821933B2] The invention relates to additives for improving the flowability of mineral oils, containing:A) 1-40 wt. % of at least one copolymer, which is oil-soluble and improves the cold flow properties of mineral oil, selected from A1) copolymers consisting of 80 to 96.5 mol % ethylene and 3.5-20 mol % vinyl esters of carboxylic acids with 1-20 C atoms and/or (meth)acrylic acid esters of alcohols with 1-8 C atoms, and A2) homopolymers or copolymers of esters, containing C10-C30 alkyl radicals, of ethylenically unsaturated carboxylic acids with up to 20 mol % of other olefinically unsaturated compounds,B) 20-80 wt. % of at least one poly-alpha-olefin with a molecular weight of 250-5000, derived from monoolefins with 3-5 C atoms, andC) 5-70 wt. % of at least one organic acid selected from C1) alkylphenol-aldehyde resins of formula (1),wherein R<1 >and R<2 >independently designate H or alkyl radicals with 1-30 C atoms, but both radicals do not at the same time signify H, n represents an integer of 3-50, and R<3 >represents H or an alkyl radical with 1-4 C atoms, and C2) aliphatic and/or aromatic sulfonic acids of formula R<18>-SO3H, wherein R<18 >stands for C6-C40-alkyl, C6-C40-alkenyl, or an alk(en)yl aryl radical which has 1, 2, 3 or 4 aromatic rings and 1, 2, 3 or 4 alkyl or aryl radicals with respectively 6-40 C-atoms.
IPC 1-7
IPC 8 full level
C10L 1/14 (2006.01); C10M 101/00 (2006.01); C10L 1/16 (2006.01); C10L 1/18 (2006.01); C10L 1/24 (2006.01)
CPC (source: EP US)
C10L 1/143 (2013.01 - EP US); C10L 1/1641 (2013.01 - EP US); C10L 1/1963 (2013.01 - EP US); C10L 1/1966 (2013.01 - EP US); C10L 1/1973 (2013.01 - EP US); C10L 1/1981 (2013.01 - EP US); C10L 1/2437 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH CY DE DK ES GB GR IE IT LI LU MC NL TR
DOCDB simple family (publication)
WO 0196503 A2 20011220; WO 0196503 A3 20030109; AT E275616 T1 20040915; CA 2412740 A1 20021213; DE 50103554 D1 20041014; EP 1294832 A2 20030326; EP 1294832 B1 20040908; ES 2228922 T3 20050416; US 2003171221 A1 20030911; US 6821933 B2 20041123
DOCDB simple family (application)
EP 0106414 W 20010606; AT 01957827 T 20010606; CA 2412740 A 20010606; DE 50103554 T 20010606; EP 01957827 A 20010606; ES 01957827 T 20010606; US 31105702 A 20021213