Global Patent Index - EP 4065671 B1

EP 4065671 B1 20240605 - USE OF ALKYL PHENOL COMPOUNDS AS DETERGENT ADDITIVES FOR PETROLS

Title (en)

USE OF ALKYL PHENOL COMPOUNDS AS DETERGENT ADDITIVES FOR PETROLS

Title (de)

VERWENDUNG VON ALKYLPHENOLVERBINDUNGEN ALS WASCHMITTELADDITIVE FÜR BENZINE

Title (fr)

UTILISATION DE COMPOSÉS ALKYL PHÉNOL COMME ADDITIFS DE DÉTERGENCE POUR ESSENCES

Publication

EP 4065671 B1 20240605 (FR)

Application

EP 20811000 A 20201126

Priority

  • FR 1913472 A 20191129
  • EP 2020083480 W 20201126

Abstract (en)

[origin: WO2021105268A1] The present invention relates to the use, for improving the detergency properties of a liquid fuel composition chosen from petrols comprising one or more detergent additives, of an additive consisting of one or more nitrogen-free compound(s) having an alkyl-phenol structure chosen from methyl-t-butyl phenols, dimethyl-t-butyl phenols, ethyl-t-butyl phenols, t-butyl phenols, di-t-butyl phenols, tri-t-butyl phenols, di-t-butyl-di-methyl phenols, and mixtures thereof. The present invention also relates to a method for improving the cleanliness of and/or for cleaning at least one inner portion of a spark-ignition internal combustion engine supplied with a liquid fuel chosen from petrols and comprising one or more detergent additives, the method consisting of adding to the fuel composition at least one such compound having an alkyl-phenol structure.

IPC 8 full level

C10L 1/14 (2006.01); C10L 1/183 (2006.01); C10L 1/224 (2006.01); C10L 1/238 (2006.01); C10L 1/2383 (2006.01); C10L 10/04 (2006.01); C10L 10/06 (2006.01)

CPC (source: EP)

C10L 1/143 (2013.01); C10L 10/04 (2013.01); C10L 10/06 (2013.01); C10L 1/1832 (2013.01); C10L 1/1835 (2013.01); C10L 1/224 (2013.01); C10L 1/238 (2013.01); C10L 1/2383 (2013.01); C10L 2200/0423 (2013.01); C10L 2270/023 (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

DOCDB simple family (publication)

WO 2021105268 A1 20210603; DK 4065671 T3 20240826; EP 4065671 A1 20221005; EP 4065671 B1 20240605; FI 4065671 T3 20240829; FR 3103812 A1 20210604; FR 3103812 B1 20230407

DOCDB simple family (application)

EP 2020083480 W 20201126; DK 20811000 T 20201126; EP 20811000 A 20201126; FI 20811000 T 20201126; FR 1913472 A 20191129