(19)
(11) EP 4 234 661 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.10.2023 Bulletin 2023/41

(43) Date of publication A2:
30.08.2023 Bulletin 2023/35

(21) Application number: 23174046.5

(22) Date of filing: 01.07.2019
(51) International Patent Classification (IPC): 
C10L 1/14(2006.01)
C10L 10/14(2006.01)
C10L 1/196(2006.01)
C10L 1/222(2006.01)
C10L 1/226(2006.01)
C10L 1/238(2006.01)
 C10L 10/04(2006.01)
C10L 1/16(2006.01)
C10L 1/197(2006.01)
C10L 1/224(2006.01)
C10L 1/232(2006.01)
C10L 1/2383(2006.01)
(52) Cooperative Patent Classification (CPC):
C10L 1/143; C10L 1/146; C10L 10/14; C10L 10/04; C10L 1/1973; C10L 1/1966; C10L 1/238; C10L 1/2383; C10L 1/224; C10L 1/2222; C10L 1/1616; C10L 1/232; C10L 1/226; C10L 2200/0446; C10L 2200/0476; C10L 2230/14; C10L 2270/026
(84) Designated Contracting States:
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

(30) Priority: 02.07.2018 GB 201810852

(62) Application number of the earlier application in accordance with Art. 76 EPC:
19736477.1 / 3818133

(71) Applicant: Innospec Limited
Ellesmere Port, Cheshire CH65 4EY (GB)

(72) Inventor:
  • MEYER, Torsten
    06242 Braunsbedra (DE)

(74) Representative: Appleyard Lees IP LLP 
15 Clare Road
Halifax HX1 2HY
Halifax HX1 2HY (GB)

   


(54) USES FOR IMPROVING THE LOW TEMPERATURE PROPERTIES OF A MIDDLE DISTILLATE FUEL


(57) A method of improving the low temperature properties of a middle distillate fuel composition comprising:
(a) a nitrogen-containing dispersant; and
(b) one or more low temperature property enhancers which are not fumarate vinyl ester copolymers and which are selected from (x) wax antisettling additives; (y) middle distillate flow improvers and mixtures thereof;
the method comprising adding to the fuel an additive (c) which is a copolymer comprising units of formula (A):

and units of formula (8):

wherein R is an alkyl group and each of R1 and R2 is an alkyl group.





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