Global Patent Index - EP 0882116 B1

EP 0882116 B1 2001-12-05 - 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 B1 (FR)

Application

EP 97938974 A

Priority

  • FR 9701551 W
  • FR 9610833 A
  • US 8710698 A

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 (main, further and additional classification)

C10M 159/24; C07C 303/06; C07C 309/31

IPC 8 full level (invention and additional information)

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 (invention and additional information)

C10M 159/24 (2013.01)

Designated contracting state (EPC)

DE FR GB NL

EPO simple patent family

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

INPADOC legal status


2016-08-31 [PG25 NL] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2016-06-01 [REG NL MM] LAPSED BECAUSE OF NON-PAYMENT OF THE ANNUAL FEE

- Effective date: 20151001

2016-05-25 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20150903

2016-04-01 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 69708848

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2014-11-28 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2014-10-31 [PGFP NL] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2003-07-11 [REG FR ST] NOTIFICATION OF LAPSE

2003-06-03 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20030603

2002-11-27 [26N] NO OPPOSITION FILED

2002-01-17 [REF] CORRESPONDS TO:

- Document: DE 69708848 20020117

2002-01-02 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20011205

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB NL

2001-05-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010316

2001-02-28 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CHEVRON ORONITE S.A.

2001-01-31 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CHEVRON CHEMICAL S.A.

1998-12-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980424

1998-12-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB NL