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BR9006995A - ELECTROSPOSITION AND CHROME DEPOSITION PROCESSES, REDUCED CORROSION CHROME ELECTRODEPOSITION BATH AND SUPPLY COMPOSITION FOR USE IN A CHROME DEPOSITION BATH - Google Patents

ELECTROSPOSITION AND CHROME DEPOSITION PROCESSES, REDUCED CORROSION CHROME ELECTRODEPOSITION BATH AND SUPPLY COMPOSITION FOR USE IN A CHROME DEPOSITION BATH

Info

Publication number
BR9006995A
BR9006995A BR909006995A BR9006995A BR9006995A BR 9006995 A BR9006995 A BR 9006995A BR 909006995 A BR909006995 A BR 909006995A BR 9006995 A BR9006995 A BR 9006995A BR 9006995 A BR9006995 A BR 9006995A
Authority
BR
Brazil
Prior art keywords
chrome
bath
electrosposition
deposition
reduced corrosion
Prior art date
Application number
BR909006995A
Other languages
Portuguese (pt)
Inventor
Kenneth Russ Newby
Original Assignee
Atochem North America
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=BR9006995(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem North America filed Critical Atochem North America
Publication of BR9006995A publication Critical patent/BR9006995A/en

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)
  • Paints Or Removers (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The present invention provides a process for electroplating chromium using lead anodes while achieving the advantages of using methanesulfonic acid without suffering the excessive anode-corrosion characteristics associated with that acid. Accordingly, chromium is electrodeposited from a bath containing chromic acid, sulfate and an alkylpolysulfonic acid containing from one to about three carbon atoms. The invention also provides a plating process for chromium electrodeposition, a plating bath for use in the inventive process, and a replenishment composition for existing plating baths.
BR909006995A 1989-11-06 1990-11-06 ELECTROSPOSITION AND CHROME DEPOSITION PROCESSES, REDUCED CORROSION CHROME ELECTRODEPOSITION BATH AND SUPPLY COMPOSITION FOR USE IN A CHROME DEPOSITION BATH BR9006995A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43196389A 1989-11-06 1989-11-06
PCT/US1990/006422 WO1991006693A1 (en) 1989-11-06 1990-11-06 Protection of lead-containing anodes during chromium electroplating

Publications (1)

Publication Number Publication Date
BR9006995A true BR9006995A (en) 1991-10-22

Family

ID=23714188

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909006995A BR9006995A (en) 1989-11-06 1990-11-06 ELECTROSPOSITION AND CHROME DEPOSITION PROCESSES, REDUCED CORROSION CHROME ELECTRODEPOSITION BATH AND SUPPLY COMPOSITION FOR USE IN A CHROME DEPOSITION BATH

Country Status (9)

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

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 (en) * 2006-09-05 2008-03-20 Goldschmidt Tib Gmbh A new additive for chromium electrolytes
ES2546007T3 (en) 2013-04-17 2015-09-17 Atotech Deutschland Gmbh Functional chrome layer with improved corrosion resistance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402554A1 (en) * 1984-01-26 1985-08-08 LPW-Chemie GmbH, 4040 Neuss DEPOSITION OF HARD CHROME ON A METAL ALLOY FROM AN AQUEOUS ELECTROLYTE CONTAINING CHROME ACID AND SULFURIC ACID
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
JPH04502786A (en) 1992-05-21
ATE150100T1 (en) 1997-03-15
WO1991006693A1 (en) 1991-05-16
CA2054201C (en) 2000-04-11
EP0452471A4 (en) 1993-11-18
AU638512B2 (en) 1993-07-01
DE69030176D1 (en) 1997-04-17
DE69030176T2 (en) 1997-07-10
AU6756990A (en) 1991-05-31
CA2054201A1 (en) 1991-05-07
SG52702A1 (en) 1998-09-28
EP0452471A1 (en) 1991-10-23
EP0452471B1 (en) 1997-03-12

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
TC Change of name
TC Change of name
TE Change of address
B25A Requested transfer of rights approved

Free format text: ATOTECH DEUTSCHLAND GMBH (DE)

B25K Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: republication

Owner name: ATOTECH DEUTSCHLAND GMBH (DE)

Free format text: REFERENTE A RPI 1755 DE 24/08/2004 COD. 25.1, QUANTO AO NOME DO TITULAR.

B22O Other matters related to patents and certificates of addition of invention: legal action concerning patent

Free format text: INPI-52400.0002709/06 ORIGEM: JUIZO DA 37A VF DO RIO DE JANEIRO PROCESSO NO 2006.51.01.511098-9 ACAO ORDINARIA DE NULIDADE DE PATENTE AUTOR: ANION INDUSTRIAL S/A. REU: INSTITUTO NACIONAL DA PROPRIEDADE INDUSTRIAL - INPI E OUTRO.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 06/11/2010