GB982181A - Improvements in or relating to the colouring of copper - Google Patents

Improvements in or relating to the colouring of copper

Info

Publication number
GB982181A
GB982181A GB781961A GB781961A GB982181A GB 982181 A GB982181 A GB 982181A GB 781961 A GB781961 A GB 781961A GB 781961 A GB781961 A GB 781961A GB 982181 A GB982181 A GB 982181A
Authority
GB
United Kingdom
Prior art keywords
bath
copper
colouring
relating
sodium
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.)
Expired
Application number
GB781961A
Inventor
John Kempton Aiken
Donald Kearey Howard
Terence John Charnley
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.)
Geigy Co Ltd
Original Assignee
Geigy Co Ltd
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
Application filed by Geigy Co Ltd filed Critical Geigy Co Ltd
Priority to GB781961A priority Critical patent/GB982181A/en
Priority to CH245662A priority patent/CH405864A/en
Priority to DE1962G0034388 priority patent/DE1234476B/en
Publication of GB982181A publication Critical patent/GB982181A/en
Expired 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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/38—Electroplating: Baths therefor from solutions of copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

An aqueous electroplating bath contains a copper complex of ethylene-diamine N-hydroxyethyl-N:N1 triacetic acid, or an alkali metal or ammonium salt thereof, and wheat gluten, egg albumin, caesin or methionine. The bath should be alkaline and preferably has a pH of 8-12. The bath is operated at a temperature of 0-95 DEG C. (preferably 60-80 DEG C.) and at a current density of 5-16 amps./sq.ft. Brightening agents, such as sodium sulphite, sodium dithinate, hydroxylamine sulphate or sulphamic acid, may be included in the bath. Specification 832,062 is referred to.
GB781961A 1961-03-03 1961-03-03 Improvements in or relating to the colouring of copper Expired GB982181A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB781961A GB982181A (en) 1961-03-03 1961-03-03 Improvements in or relating to the colouring of copper
CH245662A CH405864A (en) 1961-03-03 1962-02-28 Process for the production of bronze-colored copper surfaces and the bath to be used
DE1962G0034388 DE1234476B (en) 1961-03-03 1962-03-02 Galvanic alkaline copper baths for the deposition of bronze-colored copper coatings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB781961A GB982181A (en) 1961-03-03 1961-03-03 Improvements in or relating to the colouring of copper

Publications (1)

Publication Number Publication Date
GB982181A true GB982181A (en) 1965-02-03

Family

ID=9840371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB781961A Expired GB982181A (en) 1961-03-03 1961-03-03 Improvements in or relating to the colouring of copper

Country Status (3)

Country Link
CH (1) CH405864A (en)
DE (1) DE1234476B (en)
GB (1) GB982181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002068727A2 (en) * 2001-02-23 2002-09-06 Ebara Corporation Copper-plating solution, plating method and plating apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731102C (en) * 1941-12-13 1943-02-03 Dr Herbert Brintzinger Process for the production of metallic coatings
GB832062A (en) * 1956-01-16 1960-04-06 Geigy Co Ltd Improvements in electrodeposition of metals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002068727A2 (en) * 2001-02-23 2002-09-06 Ebara Corporation Copper-plating solution, plating method and plating apparatus
WO2002068727A3 (en) * 2001-02-23 2002-12-12 Ebara Corp Copper-plating solution, plating method and plating apparatus

Also Published As

Publication number Publication date
DE1234476B (en) 1967-02-16
CH405864A (en) 1966-01-15

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