Global Patent Index - EP 1302526 A1

EP 1302526 A1 20030416 - Additive compositions

Title (en)

Additive compositions

Title (de)

Zusatzzusammensetzungen

Title (fr)

Compositions d'Additifs

Publication

EP 1302526 A1 20030416 (EN)

Application

EP 02256463 A 20020918

Priority

  • EP 02256463 A 20020918
  • EP 01309085 A 20011025
  • GB 0124676 A 20011015

Abstract (en)

Additive compositions comprising: (i) at least one oil-soluble hydrogenated block diene polymer, comprising at least one crystallizable block, obtainable by end-to-end polymerization of a linear diene, and at least one non-crystallizable block, the non-crystallizable block being obtainable by 1,2-configuration polymerization of a linear diene, by polymerization of a branched diene, or by a mixture of such polymerizations, (ii) at least one ethylene-unsaturated ester compound; and (iii) at least one comb polymer. The additive compositions are used to improve cold flow characteristics in fuel oils. The additive compositions are particularly effective in fuel oils having a 90-20% boiling temperature range, as measured in accordance with ASTM D-86, of more than 115 DEG C, preferably more than 120 DEG C, more preferably more than 130 DEG C, and most preferably more than 140 DEG C, and a final boiling point of more than 370 DEG C, preferably more than 380 DEG C, and most preferably more than 390 DEG C.

IPC 1-7

C10L 1/14

IPC 8 full level

C10L 1/14 (2006.01); C10L 1/16 (2006.01); C10L 1/18 (2006.01); C10L 1/22 (2006.01)

CPC (source: EP)

C10L 1/143 (2013.01); C10L 1/146 (2013.01); C10L 1/1641 (2013.01); C10L 1/1658 (2013.01); C10L 1/195 (2013.01); C10L 1/1963 (2013.01); C10L 1/1966 (2013.01); C10L 1/1973 (2013.01); C10L 1/1985 (2013.01); C10L 1/221 (2013.01); C10L 1/224 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

EP 1302526 A1 20030416

DOCDB simple family (application)

EP 02256463 A 20020918