Global Patent Index - EP 1240282 A1

EP 1240282 A1 2002-09-18 - LUBRICANTS CONTAINING A BIMETALLIC DETERGENT SYSTEM AND A METHOD OF REDUCING NO x? EMISSIONS EMPLOYING SAME

Title (en)

LUBRICANTS CONTAINING A BIMETALLIC DETERGENT SYSTEM AND A METHOD OF REDUCING NO x? EMISSIONS EMPLOYING SAME

Title (de)

SCHMIERMITTEL ENTHALTEND EIN BIMETALLISCHES DETERGENZ-SYSTEM UND DIESES VERWENDENDE VERFAHREN ZUR REDUZIERUNG VON NOX EMISSIONEN

Title (fr)

LUBRIFIANTS CONTENANT UN SYSTEME DETERGENT BIMETALLIQUE ET PROCEDE PERMETTANT DE REDUIRE LES EMISSIONS D'OXYDE D'AZOTE (NO x?)

Publication

EP 1240282 A1 (EN)

Application

EP 00986338 A

Priority

  • US 0033703 W
  • US 17091099 P

Abstract (en)

[origin: WO0144419A1] A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5 % by weight of a detergent composition comprising at least two metal overbased compositions wherein said detergent composition consists essentially of (A-1) at least one alkali metal overbased detergent and (A-2) at least one calcium overbased detergent, wherein the ratio of total base number on a per 100 TBN and diluent-free basis contributed by the alkali metal detergent to the total base number contributed by the calcium detergent ranges from about 99.5-20 to about 0.5-80; (B) from about 1 to about 10 % by weight of a succinimide dispersant; and (C) from about 0.1 to about 5 % by weight of a metal dihydrocarbyl dithiophosphate of the formula (I) wherein R<1> and R<2> are each, independently, hydrocarbyl groups containing from 3 to 13 carbon atoms, M is a metal and n is an integer equal to the valence of M. Also disclosed a re methods for cleaning the combustion chamber of internal combustion engines, a method for reducing fuel consumption of internal combustion engines and a method for reducing NOx emissions of internal combustion engines.

IPC 1-7 (main, further and additional classification)

C10M 163/00; C10M 167/00

IPC 8 full level (invention and additional information)

C10M 169/04 (2006.01); C10M 133/56 (2006.01); C10M 137/10 (2006.01); C10M 159/20 (2006.01); C10M 159/22 (2006.01); C10M 159/24 (2006.01); C10M 163/00 (2006.01); C10M 167/00 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 10/06 (2006.01); C10N 10/08 (2006.01); C10N 10/12 (2006.01); C10N 10/14 (2006.01); C10N 10/16 (2006.01); C10N 20/00 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 40/25 (2006.01)

CPC (invention and additional information)

C10M 163/00 (2013.01); C10M 167/00 (2013.01); C10M 2205/00 (2013.01); C10M 2205/02 (2013.01); C10M 2207/026 (2013.01); C10M 2207/028 (2013.01); C10M 2207/123 (2013.01); C10M 2207/125 (2013.01); C10M 2207/129 (2013.01); C10M 2207/22 (2013.01); C10M 2207/26 (2013.01); C10M 2207/262 (2013.01); C10M 2209/04 (2013.01); C10M 2209/084 (2013.01); C10M 2215/04 (2013.01); C10M 2215/064 (2013.01); C10M 2215/086 (2013.01); C10M 2215/24 (2013.01); C10M 2215/26 (2013.01); C10M 2215/28 (2013.01); C10M 2217/046 (2013.01); C10M 2217/06 (2013.01); C10M 2219/022 (2013.01); C10M 2219/046 (2013.01); C10M 2219/087 (2013.01); C10M 2219/088 (2013.01); C10M 2219/089 (2013.01); C10M 2223/045 (2013.01); C10M 2229/02 (2013.01); C10M 2229/05 (2013.01); C10N 2210/00 (2013.01); C10N 2210/01 (2013.01); C10N 2210/02 (2013.01); C10N 2240/10 (2013.01); C10N 2240/101 (2013.01); C10N 2240/104 (2013.01); C10N 2240/106 (2013.01); C10N 2270/02 (2013.01)

Combination set (CPC)

  1. C10M 163/00 + C10M 133/52 + C10M 133/56 + C10M 137/10 + C10M 159/20 + C10M 159/20 + C10M 159/22 + C10M 159/22 + C10M 159/24
  2. C10M 163/00 + C10M 133/52 + C10M 133/56 + C10M 137/10 + C10M 143/00 + C10M 145/04 + C10M 145/14 + C10M 159/20 + C10M 159/20 + C10M 159/22 + C10M 159/22 + C10M 159/24 + C10M 159/24
  3. C10M 2207/028 + C10M 2207/028
  4. C10M 2207/26 + C10M 2207/26
  5. C10M 2207/262 + C10M 2207/262
  6. C10M 2219/046 + C10M 2219/046
  7. C10M 2219/089 + C10M 2219/089

Citation (search report)

See references of WO 0144419A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 0144419 A1 20010621; WO 0144419 A8 20040422; AU 2259401 A 20010625; AU 778615 B2 20041216; CA 2394289 A1 20010621; CA 2394289 C 20091020; EP 1240282 A1 20020918; JP 2003517094 A 20030520; JP 2013234337 A 20131121

INPADOC legal status


2017-12-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20170701

2007-12-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20071119

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020710

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB