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 1/26; C23G 5/06

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); 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)

Combination set (CPC)

C10M 173/00 + C10M 129/38 + C10M 129/36 + C10M 133/06 + C10M 133/38 + C10M 133/46

Citation (search report)

See references of WO 9923281A1

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2001-08-01 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20010608

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

- Ref Legal Event Code: 17Q

- Effective date: 20010329

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

- Ref Legal Event Code: 17P

- Effective date: 20000422

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

- Ref Legal Event Code: AK

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