Global Patent Index - EP 2931851 A1

EP 2931851 A1 20151021 - PROCESS FOR PRODUCING AN OVERBASED METAL DETERGENT

Title (en)

PROCESS FOR PRODUCING AN OVERBASED METAL DETERGENT

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES ÜBERBASISCHEN METALLDETERGENS

Title (fr)

PROCÉDÉ DE PRODUCTION D'UN DÉTERGENT MÉTALLIQUE SURBASIQUE

Publication

EP 2931851 A1 (EN)

Application

EP 13808399 A

Priority

  • US 201261737867 P
  • US 2013072729 W

Abstract (en)

[origin: WO2014099342A1] A high TBN overbased metal sulfonate detergent is prepared by reacting a hydrocarbyl-substituted organic sulfonic acid or metal salt thereof with a basic alkali metal or alkaline earth metal compound in the presence of a mono-alcohol and a carboxylic acid and reacting this mixture with carbon dioxide to form a carbonated overbased metal sulfonate. The resulting overbased metal detergent has a metal equivalent to sulfonic acid substrate ratio of 5:1 to 27:1. The product thus prepared has improved viscometrics, filterability, and TBN:ash ratio. Lubricating compositions comprising said overbased detergent display reduced friction and wear performance. The invention further relates to methods of lubricating an internal combustion engine with a lubricant containing an overbased detergent prepared as described.

IPC 8 full level

C10M 159/24 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01)

CPC (source: EP US)

C10M 135/10 (2013.01 - US); C10M 159/24 (2013.01 - EP US); C10M 2207/021 (2013.01 - EP US); C10M 2207/26 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10N 2010/02 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2020/069 (2020.05 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2030/52 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2070/00 (2013.01 - EP US)

C-Set (source: EP US)

EP

  1. C10M 2219/046 + C10N 2010/02
  2. C10M 2219/046 + C10N 2010/04

US

  1. C10M 2219/046 + C10N 2010/04
  2. C10M 2219/046 + C10N 2010/02

 

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

DOCDB simple family (publication)

WO 2014099342 A1 20140626; CA 2894238 A1 20140626; CN 104854223 A 20150819; EP 2931851 A1 20151021; SG 11201503870S A 20150629; US 2015315510 A1 20151105

DOCDB simple family (application)

US 2013072729 W 20131203; CA 2894238 A 20131203; CN 201380065458 A 20131203; EP 13808399 A 20131203; SG 11201503870S A 20131203; US 201314651257 A 20131203