CA2054201A1 - Protection des anodes contenant du plomb pendant l'electrodeposition de chrome - Google Patents

Protection des anodes contenant du plomb pendant l'electrodeposition de chrome

Info

Publication number
CA2054201A1
CA2054201A1 CA2054201A CA2054201A CA2054201A1 CA 2054201 A1 CA2054201 A1 CA 2054201A1 CA 2054201 A CA2054201 A CA 2054201A CA 2054201 A CA2054201 A CA 2054201A CA 2054201 A1 CA2054201 A1 CA 2054201A1
Authority
CA
Canada
Prior art keywords
lead
acid
protection
chromium
chromium electroplating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2054201A
Other languages
English (en)
Other versions
CA2054201C (fr
Inventor
Kenneth Russ Newby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atotech Deutschland GmbH and Co KG
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23714188&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2054201(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2054201A1 publication Critical patent/CA2054201A1/fr
Application granted granted Critical
Publication of CA2054201C publication Critical patent/CA2054201C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation
    • C25D21/14—Controlled addition of electrolyte components
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention se rapporte à un procédé d'électrodéposition de chrome utilisant des anodes de plomb, qui conserve les avantages d'utilisation de l'acide méthanesulfonique tout en empêchant la corrosion excessive des anodes généralement associée à l'utilisation de cet acide. Selon la présente invention, le chrome est électrodéposé à partir d'un bain contenant de l'acide chromique, du sulfate et de l'acide alkylpolysulfonique renfermant un à environ trois atomes de carbone. L'invention se rapporte également à un procédé de galvanoplastie pour l'électrodéposition de chrome, a un bain galvanoplastique utilisable dans le procédé de la présente invention, ainsi qu'à une composition de nourrissage pour bains galvanoplastiques existants.
CA002054201A 1989-11-06 1990-11-06 Protection des anodes contenant du plomb pendant l'electrodeposition de chrome Expired - Lifetime CA2054201C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US43196389A 1989-11-06 1989-11-06
US431,963 1989-11-06
PCT/US1990/006422 WO1991006693A1 (fr) 1989-11-06 1990-11-06 Protection des anodes contenant du plomb pendant l'electrodeposition de chrome

Publications (2)

Publication Number Publication Date
CA2054201A1 true CA2054201A1 (fr) 1991-05-07
CA2054201C CA2054201C (fr) 2000-04-11

Family

ID=23714188

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002054201A Expired - Lifetime CA2054201C (fr) 1989-11-06 1990-11-06 Protection des anodes contenant du plomb pendant l'electrodeposition de chrome

Country Status (9)

Country Link
EP (1) EP0452471B1 (fr)
JP (1) JPH04502786A (fr)
AT (1) ATE150100T1 (fr)
AU (1) AU638512B2 (fr)
BR (1) BR9006995A (fr)
CA (1) CA2054201C (fr)
DE (1) DE69030176T2 (fr)
SG (1) SG52702A1 (fr)
WO (1) WO1991006693A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5192515A (en) * 1990-09-20 1993-03-09 Molecular Technology Corporation Reduction of nitrogen oxide and carbon monoxide in effluent gases
DE102006042076A1 (de) * 2006-09-05 2008-03-20 Goldschmidt Tib Gmbh Ein neues Additiv für Chromelektrolyte
PL2792770T3 (pl) 2013-04-17 2015-11-30 Atotech Deutschland Gmbh Funkcjonalna warstwa chromu z ulepszoną odpornością korozyjną

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402554A1 (de) * 1984-01-26 1985-08-08 LPW-Chemie GmbH, 4040 Neuss Abscheidung von hartchrom auf einer metallegierung aus einem waessrigen, chromsaeure und schwefelsaeure enthaltenden elektrolyten
US4588481A (en) * 1985-03-26 1986-05-13 M&T Chemicals Inc. Chromium plating bath for producing non-iridescent, adherent, bright chromium deposits at high efficiencies and substantially free of cathodic low current density etching
US4786378A (en) * 1987-09-01 1988-11-22 M&T Chemicals Inc. Chromium electroplating baths having reduced weight loss of lead and lead alloy anodes
US4810337A (en) * 1988-04-12 1989-03-07 M&T Chemicals Inc. Method of treating a chromium electroplating bath which contains an alkyl sulfonic acid to prevent heavy lead dioxide scale build-up on lead or lead alloy anodes used therein

Also Published As

Publication number Publication date
CA2054201C (fr) 2000-04-11
DE69030176T2 (de) 1997-07-10
ATE150100T1 (de) 1997-03-15
BR9006995A (pt) 1991-10-22
EP0452471B1 (fr) 1997-03-12
EP0452471A1 (fr) 1991-10-23
WO1991006693A1 (fr) 1991-05-16
SG52702A1 (en) 1998-09-28
JPH04502786A (ja) 1992-05-21
AU638512B2 (en) 1993-07-01
DE69030176D1 (de) 1997-04-17
EP0452471A4 (en) 1993-11-18
AU6756990A (en) 1991-05-31

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry