Global Patent Index - EP 0947519 A4

EP 0947519 A4 2000-12-20 - WATER-BASE LUBRICANT CONTAINING SULFUR AS COORDINATE ATOM, AND USE THEREOF

Title (en)

WATER-BASE LUBRICANT CONTAINING SULFUR AS COORDINATE ATOM, AND USE THEREOF

Title (de)

SCHWEFEL ALS KOORDINATIONSATOM ENTHALTENDES WASSERBASIERENDES SCHMIERMITTEL UND SEINE ANWENDUNG

Title (fr)

LUBRIFIANT A BASE D'EAU, CONTENANT DU SOUFRE COMME ATOME DE COORDINATION ET LEUR UTILISATION

Publication

EP 0947519 A4 (EN)

Application

EP 97912498 A

Priority

  • JP 9704197 W
  • JP 30691096 A

Abstract (en)

[origin: EP0947519A1] An aqueous lubricant is provided which by simple application onto metal surfaces forms lubricating films required for heavy working of metals, and which contains no oil. The aqueous lubricant is prepared by suspending or dispersing a metal chelate compound in water with a surfactant or the like. The metal chelate compound has a polydentate or multidentate chelate ligand, in which at least one of the coordinating atoms is sulfur, coordinated to the coordination site of at least one metal species selected from among zinc, manganese, iron, molybdenum, tin and antimony. When applied onto metal surfaces, the aqueous lubricant forms effective lubricating films on the metal surfaces. The lubricating films contain sulfur as coordinating atoms and therefore, extreme pressure produces sulfur radicals through decomposition by tribo-chemical reactions. The sulfur radicals are highly reactive and react rapidly with the metal surface to produce metal sulfides with a lubricating effect. The sulfur radicals also react with metal ions produced by decomposition of the metal chelate compound, also producing metal sulfides with a lubricating effect. The aqueous lubricants thus exhibit a satisfactory lubricating effect.

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

C07F 3/06; C07F 7/22; C07F 9/90; C07F 11/00; C07F 13/00; C07F 15/02; C10M 135/18; C10M 139/00; C10M 173/00; C10M 173/02; C23C 22/83

IPC 8 full level (invention and additional information)

C10M 135/18 (2006.01); C10M 159/18 (2006.01); C10M 173/02 (2006.01)

CPC (invention and additional information)

C10M 173/02 (2013.01); C10M 135/18 (2013.01); C10M 159/18 (2013.01); C10M 2201/02 (2013.01); C10M 2207/09 (2013.01); C10M 2219/068 (2013.01); C10M 2227/09 (2013.01); C10N 2210/02 (2013.01); C10N 2210/04 (2013.01); C10N 2210/05 (2013.01); C10N 2210/06 (2013.01); C10N 2210/07 (2013.01); C10N 2210/08 (2013.01); C10N 2240/40 (2013.01); C10N 2240/402 (2013.01); C10N 2240/403 (2013.01); C10N 2240/404 (2013.01); C10N 2240/405 (2013.01); C10N 2240/406 (2013.01); C10N 2240/407 (2013.01); C10N 2240/408 (2013.01); C10N 2240/409 (2013.01); C10N 2250/02 (2013.01)

Combination set (CPC)

C10M 173/02 + C10M 159/18

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0947519 A1 19991006; EP 0947519 A4 20001220; EP 0947519 B1 20030604; DE 69722658 D1 20030710; DE 69722658 T2 20040429; JP 3217072 B2 20011009; WO 9822472 A1 19980528

INPADOC legal status


2013-06-28 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

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

- Effective date: 20120601

2012-12-31 [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: 20111130

2012-10-31 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

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

- Effective date: 20111118

2012-09-13 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 69722658

- Effective date: 20120601

2012-08-17 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20120731

2012-07-25 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20111118

2011-03-31 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20101117

- Year of fee payment: 14

2011-02-28 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20101110

- Year of fee payment: 14

2011-01-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20101123

- Year of fee payment: 14

2004-05-26 [26N] NO OPPOSITION FILED

- Effective date: 20040305

2004-03-19 [ET] FR: TRANSLATION FILED

2003-07-10 [REF] CORRESPONDS TO:

- Document: DE 69722658 P 20030710

2003-06-04 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): DE FR GB

2003-06-04 [REG GB FG4D] EUROPEAN PATENT GRANTED

2002-01-30 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011214

2000-12-20 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20001106

2000-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR GB

2000-12-20 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 07F 3/06 A, 7C 07F 7/22 B, 7C 07F 9/90 B, 7C 07F 11/00 B, 7C 07F 13/00 B, 7C 07F 15/02 B, 7C 10M 135/18 B, 7C 10M 139/00 B, 7C 10M 173/00 B, 7C 10M 173/02 B, 7C 23C 22/83 B, 7C 10M 173/02 J, 7C 10M 159:18 J, 7C 10N 40:22 Z, 7C 10N 40:08 Z

1999-10-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990618

1999-10-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB