Global Patent Index - EP 1027477 A1

EP 1027477 A1 2000-08-16 - METAL PROCESSING LIQUID FOR THE NEUTRAL pH RANGE

Title (en)

METAL PROCESSING LIQUID FOR THE NEUTRAL pH RANGE

Title (de)

METALLBEHANDLUNGSFLÜSSIGKEIT FÜR DEN NEUTRALEN pH-BEREICH

Title (fr)

LIQUIDE DE TRAITEMENT DE METAUX POUR LA ZONE DE pH NEUTRE

Publication

EP 1027477 A1 (DE)

Application

EP 98956861 A

Priority

  • DE 19747895 A
  • EP 9806693 W

Abstract (en)

[origin: DE19747895A1] A metal processing liquid with a pH value ranging from 6-9, containing a combination of one or several carboxylic acids and one or several nitrogen compounds selected from organic amines or heterocycles containing nitrogen, whereby the nitrogen compounds have a pKS value for at least one proteolysis step ranging from 6-9, with a weight ratio of 10:1 to 10:20.

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

C23F 11/10; C23G 1/24; C23G 5/06; C23G 1/26

IPC 8 full level (invention and additional information)

C10M 173/00 (2006.01); C23F 11/10 (2006.01); C23F 11/14 (2006.01)

CPC (invention and additional information)

C10M 173/00 (2013.01); C10M 129/36 (2013.01); C10M 129/38 (2013.01); C10M 133/06 (2013.01); C10M 133/38 (2013.01); C10M 133/46 (2013.01); C23F 11/10 (2013.01); C23F 11/14 (2013.01); C10M 2201/02 (2013.01); C10M 2207/124 (2013.01); C10M 2207/125 (2013.01); C10M 2207/128 (2013.01); C10M 2207/129 (2013.01); C10M 2207/40 (2013.01); C10M 2207/404 (2013.01); C10M 2209/104 (2013.01); C10M 2215/04 (2013.01); C10M 2215/22 (2013.01); C10M 2215/221 (2013.01); C10M 2215/224 (2013.01); C10M 2215/225 (2013.01); C10M 2215/226 (2013.01); C10M 2215/26 (2013.01); C10M 2215/30 (2013.01); C10M 2217/046 (2013.01); C10M 2217/06 (2013.01); C10M 2219/044 (2013.01); C10N 2230/12 (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)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL PT SE

EPO simple patent family

DE 19747895 A1 19990506; AU 1335499 A 19990524; EP 1027477 A1 20000816; NO 20002246 A 20000428; NO 20002246 D0 20000428; WO 9923281 A1 19990514; ZA 9809884 B 19990430

INPADOC legal status


2001-08-01 [18W] WITHDRAWN

- Date of withdrawal: 20010608

2001-05-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010329

2000-08-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000422

2000-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE