AU7054487A - Improvement in or relating to organic compounds - Google Patents

Improvement in or relating to organic compounds

Info

Publication number
AU7054487A
AU7054487A AU70544/87A AU7054487A AU7054487A AU 7054487 A AU7054487 A AU 7054487A AU 70544/87 A AU70544/87 A AU 70544/87A AU 7054487 A AU7054487 A AU 7054487A AU 7054487 A AU7054487 A AU 7054487A
Authority
AU
Australia
Prior art keywords
quality
acid
lesser degree
electrolyte
relating
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
AU70544/87A
Other versions
AU603790B2 (en
Inventor
Bruno Boetsch
Hans Bohler
Jean-Francis Paulet
Fritz Schneeberger
Gunther Tscheulin
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.)
Alcan Holdings Switzerland AG
Clariant Finance BVI Ltd
Original Assignee
Alusuisse Holdings AG
Sandoz AG
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=4205369&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU7054487(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alusuisse Holdings AG, Sandoz AG filed Critical Alusuisse Holdings AG
Publication of AU7054487A publication Critical patent/AU7054487A/en
Application granted granted Critical
Publication of AU603790B2 publication Critical patent/AU603790B2/en
Assigned to SCHWEIZERISCHE ALUMINIUM AG, CLARIANT FINANCE (BVI) LIMITED reassignment SCHWEIZERISCHE ALUMINIUM AG Alteration of Name(s) in Register under S187 Assignors: SANDOZ LTD., SCHWEIZERISCHE ALUMINIUM AG
Anticipated expiration legal-status Critical
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
    • C25D3/30—Electroplating: Baths therefor from solutions of tin
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/20—Electrolytic after-treatment
    • C25D11/22—Electrolytic after-treatment for colouring layers
    • 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
    • C25D3/30—Electroplating: Baths therefor from solutions of tin
    • C25D3/32—Electroplating: Baths therefor from solutions of tin characterised by the organic bath constituents used

Abstract

In acid Sn(II)-containing electrolytes for staining anodically produced oxide layers on aluminium or aluminium alloys or for electroplating, the Sn(II) becomes oxidised. Adding substances to the electrolyte, so called stabilisers, may prevent the oxidation to a greater or lesser degree, i.e. Sn(II) can be stabilised to a greater or lesser degree. The effectiveness of the stabiliser furthermore governs the quality of the deposits or the coloration of the anodised layer. The quality of the surface treatment is known to deteriorate in the presence of Sn(IV) in substantial amounts alongside Sn(II) as a consequence of inadequate stabilisation of the Sn(II). An acid Sn(II)-containing electrolyte with a soluble diphenylamine or substituted diphenylamine derivative added stabilises the Sn(II) and yields faultless colorations.
AU70544/87A 1986-03-25 1987-03-23 Improvement in or relating to organic compounds Expired AU603790B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH122386 1986-03-25
CH1223/86 1986-03-25

Publications (2)

Publication Number Publication Date
AU7054487A true AU7054487A (en) 1987-10-01
AU603790B2 AU603790B2 (en) 1990-11-29

Family

ID=4205369

Family Applications (1)

Application Number Title Priority Date Filing Date
AU70544/87A Expired AU603790B2 (en) 1986-03-25 1987-03-23 Improvement in or relating to organic compounds

Country Status (8)

Country Link
EP (1) EP0241415B1 (en)
JP (1) JPH07107198B2 (en)
KR (1) KR940010459B1 (en)
AT (1) ATE119587T1 (en)
AU (1) AU603790B2 (en)
CA (1) CA1336129C (en)
DE (1) DE3751126D1 (en)
ES (1) ES2069532T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059765A (en) * 1991-07-04 1993-01-19 Nippon Parkerizing Co Ltd Acidic cleaning liquid for aluminum and cleaning method
JP7009679B2 (en) * 2015-07-29 2022-01-26 石原ケミカル株式会社 Electric tin and electric tin alloy plating bath, method of forming electrodeposits using the plating bath

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1089479A (en) * 1965-11-09 1967-11-01 Monsanto Chemicals Improvements relating to electrodeposition of tin
GB1339133A (en) * 1970-06-19 1973-11-28 Ciba Geigy Uk Ltd Tin plating additives and baths
US4073701A (en) * 1976-10-15 1978-02-14 Bethlehem Steel Corporation Acid electrotinning bath

Also Published As

Publication number Publication date
JPH07107198B2 (en) 1995-11-15
KR870009055A (en) 1987-10-23
EP0241415A1 (en) 1987-10-14
EP0241415B1 (en) 1995-03-08
ATE119587T1 (en) 1995-03-15
AU603790B2 (en) 1990-11-29
JPS62270791A (en) 1987-11-25
CA1336129C (en) 1995-07-04
ES2069532T3 (en) 1995-05-16
KR940010459B1 (en) 1994-10-22
DE3751126D1 (en) 1995-04-13

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