DE801312C - Process for the electrolytic deposition of gold and gold alloys - Google Patents

Process for the electrolytic deposition of gold and gold alloys

Info

Publication number
DE801312C
DE801312C DENDAT801312D DE801312DA DE801312C DE 801312 C DE801312 C DE 801312C DE NDAT801312 D DENDAT801312 D DE NDAT801312D DE 801312D A DE801312D A DE 801312DA DE 801312 C DE801312 C DE 801312C
Authority
DE
Germany
Prior art keywords
gold
electrolytic deposition
alloys
gold alloys
deposition
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
DENDAT801312D
Other languages
German (de)
Inventor
Pforzheim Dinl.-Ing. Fritz Volk
Original Assignee
Pforzheimer Elektrizitäts - Gesellschaft m. b. H., Pforzheim
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.)
Publication date
Application granted granted Critical
Publication of DE801312C publication Critical patent/DE801312C/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
    • C25D3/48—Electroplating: Baths therefor from solutions of gold
    • 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
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/62—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of gold

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)

Description

Ausgegeben amsIssued ams

2 9. April 19652 April 9, 1965

argänzungsblatt zur Patentschrift Nr„ 801 312 Kl» 48a G-r, (BB -/^P Supplementary sheet for patent specification No. “801 312 Kl» 48a Gr, (BB - / ^ P

Das Patent 801 312 ist durch Urteil des Bundesgerichtshofes vom t, J \- 17.3o 1964 dadurch teilweise für nichtig erklärt worden, daß der X^y? Ansprach 1 folgende Passung erhält:The patent 801 312 has been partially declared null and void by judgment of the Federal Court of Justice of t, J \ - 17.3o 1964, that the X ^ y? Address 1 receives the following fit:

"Verfahren Eur elektrolytischen Abscheidung von Gold oder Goldlegierungen in dicken (über 5 Mikron starken) glänzend glatten Schichten, dadurch gekennzeichnet, daß die Abscheidung aus einem neutralen Elektrolyten erfolgt, wobei das Alkalischwerden des Bades im Verlauf dea Plattierungsvorganges durch eine Puffersubstanz verhindert wird.""Process Eur electrolytic deposition of gold or gold alloys in thick (over 5 microns thick) glossy smooth layers, characterized in that the deposition from one neutral electrolytes, whereby the bath is prevented from becoming alkaline in the course of the plating process by a buffer substance will."

In Anspruch 2 werden die Worte "oder der alkalieohen Erdmetalle" gestricheneIn claim 2 the words "or the alkaline earth metals" deleted

DENDAT801312D 1949-05-05 Process for the electrolytic deposition of gold and gold alloys Expired DE801312C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE277997X 1949-05-05

Publications (1)

Publication Number Publication Date
DE801312C true DE801312C (en) 1950-11-23

Family

ID=6028442

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT801312D Expired DE801312C (en) 1949-05-05 Process for the electrolytic deposition of gold and gold alloys

Country Status (3)

Country Link
US (1) US2812299A (en)
CH (1) CH277997A (en)
DE (1) DE801312C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055315B (en) * 1953-04-01 1959-04-16 Sel Rex Precious Metals Inc Process and bath for the electrodeposition of a gold-silver alloy
DE3929569C1 (en) * 1989-09-06 1991-04-18 Degussa Ag, 6000 Frankfurt, De

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978390A (en) * 1957-07-22 1961-04-04 Bell Telephone Labor Inc Gold plating solutions
US2967135A (en) * 1960-06-08 1961-01-03 Barnet D Ostrow Electroplating baths for hard bright gold deposits
BE620596A (en) * 1961-08-23
US3303112A (en) * 1963-10-28 1967-02-07 American Chem & Refining Co Acidic gold cyanide electroplating bath and process
US3373094A (en) * 1964-08-26 1968-03-12 Sel Rex Corp Gold and gold alloy electroplating
US3362895A (en) * 1964-11-23 1968-01-09 Sel Rex Corp Electrodeposition of silver
US3505182A (en) * 1965-10-01 1970-04-07 Texas Instruments Inc Method and solution for gold electroplating
US3475292A (en) * 1966-02-10 1969-10-28 Technic Gold plating bath and process
US3466233A (en) * 1967-05-23 1969-09-09 Engelhard Ind Inc Gold plating
US3755089A (en) * 1971-11-18 1973-08-28 Rapid Electroplating Process I Method of gold plating
US4207149A (en) * 1974-12-04 1980-06-10 Engelhard Minerals & Chemicals Corporation Gold electroplating solutions and processes
US4238300A (en) * 1979-05-25 1980-12-09 Bell Telephone Laboratories, Incorporated Gold electroplating process
US4396471A (en) * 1981-12-14 1983-08-02 American Chemical & Refining Company, Inc. Gold plating bath and method using maleic anhydride polymer chelate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1104842A (en) * 1914-02-27 1914-07-28 Joseph A Smith Method of plating.
USRE20306E (en) * 1935-05-13 1937-03-23 Method for gold plating
CH286123A (en) * 1952-05-08 1952-10-15 Spreter Victor Bath for the galvanic deposition of gold alloys.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055315B (en) * 1953-04-01 1959-04-16 Sel Rex Precious Metals Inc Process and bath for the electrodeposition of a gold-silver alloy
DE3929569C1 (en) * 1989-09-06 1991-04-18 Degussa Ag, 6000 Frankfurt, De

Also Published As

Publication number Publication date
US2812299A (en) 1957-11-05
CH277997A (en) 1951-09-30

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