GB633780A - Improvements relating to the electrodeposition of copper - Google Patents

Improvements relating to the electrodeposition of copper

Info

Publication number
GB633780A
GB633780A GB19248/47A GB1924847A GB633780A GB 633780 A GB633780 A GB 633780A GB 19248/47 A GB19248/47 A GB 19248/47A GB 1924847 A GB1924847 A GB 1924847A GB 633780 A GB633780 A GB 633780A
Authority
GB
United Kingdom
Prior art keywords
copper
electrodeposition
thiourea
electrolyte
grams per
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
GB19248/47A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB633780A publication Critical patent/GB633780A/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

Abstract

633,780. Electrodeposition of copper. GENERAL MOTORS CORPORATION. July 18, 1947, No. 19248. Convention date, May 24, 1941. [Class 41] An electrolyte for electrodeposition of copper comprises an aqueous solution of copper sulphate, free sulphuric acid, and a thiourea in an amount between .002 and 5 grams per litre of solution. The electrolyte may also contain a small amount, for example, between .01 and 5 grams per litre, of a control agent of the organic sulphonate type, effective to widen the plating range and improve the distribution of brightness. In addition, or alternatively, there may also be added to the bath a metallic salt, for example, a sulphate of cadmium, zinc or cobalt, or a phosphate of nickel. The Specification as open to inspection under Sect. 91 describes also the use, in place of thiourea, of one or more compounds of the group, including isothiocyanates, thioacetamides, xanthates, mercaptans and cyanamides. This subject-matter does not appear in the Specification as accepted.
GB19248/47A 1941-05-24 1947-07-18 Improvements relating to the electrodeposition of copper Expired GB633780A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39500441A 1941-05-24 1941-05-24
US722756A US2489538A (en) 1941-05-24 1947-01-17 Electrodeposition of copper

Publications (1)

Publication Number Publication Date
GB633780A true GB633780A (en) 1949-12-30

Family

ID=27014957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19248/47A Expired GB633780A (en) 1941-05-24 1947-07-18 Improvements relating to the electrodeposition of copper

Country Status (3)

Country Link
US (1) US2489538A (en)
DE (2) DE832982C (en)
GB (1) GB633780A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940860C (en) * 1952-07-05 1956-03-29 Metallic Industry Nv Acid electrolyte bath for the production of electrolytic copper coatings
GB2224748A (en) * 1988-11-01 1990-05-16 Metal Leve Sa Manufacture of sliding layer of plain bearings using a single electroplating bath

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE863275C (en) * 1950-06-30 1953-01-15 Siemens Ag Process for the production of high-gloss galvanic nickel, cobalt and nickel-cobalt coatings
US2660555A (en) * 1950-12-20 1953-11-24 Canadian Copper Refiners Ltd Process of and electrolyte for refining copper
US2677654A (en) * 1951-05-10 1954-05-04 Poor & Co Copper electroplating and compositions therefor
US2696467A (en) * 1952-01-04 1954-12-07 Gen Motors Corp Copper plating bath and process
BE520209A (en) * 1952-05-26
DE975247C (en) * 1952-07-19 1961-10-12 Dehydag Gmbh Process for the production of fine-grained galvanic copper deposits
DE1017001B (en) * 1953-10-14 1957-10-03 Metal & Thermit Corp Galvanic copper bath containing pyrophosphate
DE962489C (en) * 1954-02-10 1957-04-25 Dehydag Gmbh Saver pickling agent to protect metals when treated with acidic agents
BE534701A (en) * 1954-03-22
DE1027482B (en) * 1954-09-28 1958-04-03 Riedel & Co Direct copper plating of iron in acidic electrolytes without intermediate treatment
GB855793A (en) * 1956-01-19 1960-12-07 Harshaw Chem Corp Improvements in and relating to the electrodeposition of copper
BE565994A (en) * 1957-04-16
BE572016A (en) * 1957-11-30
US2871173A (en) * 1958-02-04 1959-01-27 Seymour Mfg Company Method of making ductile copper platings
NL238490A (en) * 1958-04-26
NL123240C (en) * 1960-07-23

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940860C (en) * 1952-07-05 1956-03-29 Metallic Industry Nv Acid electrolyte bath for the production of electrolytic copper coatings
DE962129C (en) * 1952-07-05 1957-04-18 Metallic Industry Nv Acid electrolyte bath for the production of electrolytic copper coatings
GB2224748A (en) * 1988-11-01 1990-05-16 Metal Leve Sa Manufacture of sliding layer of plain bearings using a single electroplating bath
US5156729A (en) * 1988-11-01 1992-10-20 Metal Leve, S.A. Method of making a plain bearing sliding layer
GB2224748B (en) * 1988-11-01 1993-06-30 Metal Leve Sa Method of making a plain bearing sliding layer

Also Published As

Publication number Publication date
US2489538A (en) 1949-11-29
DE837029C (en) 1952-04-17
DE832982C (en) 1952-03-03

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