WO2023104999 - AQUEOUS STRIPPING COMPOSITION FOR ELECTROLYTICALLY REMOVING A METAL DEPOSIT FROM A SUBSTRATE
National phase entry:
Publication Number
WO/2023/104999
Publication Date
15.06.2023
International Application No.
PCT/EP2022/085062
International Filing Date
08.12.2022
Title **
[English]
AQUEOUS STRIPPING COMPOSITION FOR ELECTROLYTICALLY REMOVING A METAL DEPOSIT FROM A SUBSTRATE
[French]
COMPOSITION AQUEUSE DE DÉCAPAGE POUR LE RETRAIT, DE MANIÈRE ÉLECTROLYTIQUE, D'UN DÉPÔT MÉTALLIQUE À PARTIR D'UN SUBSTRAT
Applicants **
ATOTECH DEUTSCHLAND GMBH & CO. KG
Erasmusstraße 20
10553 Berlin, DE
Inventors
LAGORCE-BROC, Florence
c/o Atotech Deutschland GmbH & Co. KG
Eraumusstr. 20
10553 Berlin, DE
Priority Data
21213202.1
08.12.2021
EP
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Drawings | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1108 | |
| EPO | Filing, Examination | 4606 | |
| Japan | Filing | 590 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 9589 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present invention relates to an aqueous stripping composition for electrolytically re-moving a metal deposit from a substrate, the composition comprising (i) nitrate anions, (ii) one or more than one carboxylic acid and/or salts thereof, and (iii) one or more than one kind of halogen anions, wherein in the aqueous stripping composition (i) is the only nitrogen-containing species. The present invention furthermore relates to a respective use thereof and a respective method utilizing said aqueous stripping composition.[French]
La présente invention concerne une composition aqueuse de décapage pour le retrait, de manière électrolytique, d'un dépôt métallique à partir d'un substrat, la composition comprenant (i) des anions nitrate, (ii) un ou plus d'un acide carboxylique et/ou des sels de celui-ci, et (iii) un ou plus d'un type d'anions halogènes. Selon l'invention, dans la composition aqueuse de décapage, (i) est la seule espèce contenant de l'azote. La présente invention concerne en outre une utilisation respective de celle-ci et un procédé respectif utilisant ladite composition aqueuse de décapage.