Global Patent Index - EP 0882116 A1

EP 0882116 A1 19981209 - MIXTURE OF EARTH-ALKALINE METAL ALKYL-ARYL-SULPHONATES, ITS USE AS ADDITIVE FOR LUBRICATING OIL AND METHOD OF PREPARATION

Title (en)

MIXTURE OF EARTH-ALKALINE METAL ALKYL-ARYL-SULPHONATES, ITS USE AS ADDITIVE FOR LUBRICATING OIL AND METHOD OF PREPARATION

Title (de)

MISCHUNG VON ERDALKALIALKYLARYLSULFONATEN, IHRE VERWENDUNG ALS SCHMIERÖLZUSATZ UND HERSTELLUNGSMETHODE

Title (fr)

MELANGE D'ALKYL-ARYL-SULFONATES DE METAUX ALCALINO-TERREUX, SON APPLICATION COMME ADDITIF POUR HUILE LUBRIFIANTE ET PROCEDES DE PREPARATION

Publication

EP 0882116 A1 19981209 (FR)

Application

EP 97938974 A 19970903

Priority

  • FR 9701551 W 19970903
  • FR 9610833 A 19960905
  • US 8710698 A 19980529

Abstract (en)

[origin: FR2752838A1] The invention concerns a mixture of superalkalified earth-alkaline comprising: (a) 50 % to 85 % by weight of one mono-alkyl-sulphonate with a C14-C40 linear chain in which the molar ratio of phenyl-sulphonate substituent in position 1 or 2 is between 0 and 13 %, and (b) 15 % to 50 % by weight of one heavy alkyl-aryl-sulphonate, in which the aryl radical is phenyl substituted or not and the alkyl chains are either two linear alkyl chains with a total of 16 to 40 carbon atoms or one or several branched alkyl chains with an average total of 15 to 48 carbon atoms. Insofar as these mixtures contain less than 10 % of linear mono-alkyl-phenyl-sulphonate substituted in position 1 or 2 of the linear alkyl chain, they have properties enabling their use as washing-dispering additive for lubricating oils.

IPC 1-7

C10M 159/24; C07C 309/31; C07C 303/06

IPC 8 full level

C07C 303/04 (2006.01); C07C 303/06 (2006.01); C07C 303/32 (2006.01); C07C 309/31 (2006.01); C10M 159/24 (2006.01); C10M 177/00 (2006.01); C10N 10/04 (2006.01); C10N 30/04 (2006.01); C10N 30/18 (2006.01); C10N 70/00 (2006.01)

CPC (source: EP US)

C10M 159/24 (2013.01 - EP US)

Citation (search report)

See references of WO 9810044A1

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

FR 2752838 A1 19980306; FR 2752838 B1 19981204; CA 2236318 A1 19980312; CA 2236318 C 20090602; DE 69708848 D1 20020117; DE 69708848 T2 20020620; EP 0882116 A1 19981209; EP 0882116 B1 20011205; JP 4112622 B2 20080702; JP H11514702 A 19991214; US 6054419 A 20000425; WO 9810044 A1 19980312

DOCDB simple family (application)

FR 9610833 A 19960905; CA 2236318 A 19970903; DE 69708848 T 19970903; EP 97938974 A 19970903; FR 9701551 W 19970903; JP 51230398 A 19970903; US 8710698 A 19980529