GB869204A - Treatment of aluminium surfaces - Google Patents

Treatment of aluminium surfaces

Info

Publication number
GB869204A
GB869204A GB638958A GB638958A GB869204A GB 869204 A GB869204 A GB 869204A GB 638958 A GB638958 A GB 638958A GB 638958 A GB638958 A GB 638958A GB 869204 A GB869204 A GB 869204A
Authority
GB
United Kingdom
Prior art keywords
acid
solution
nitrosulphonic
aluminium
contain
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
GB638958A
Inventor
Richard Joseph Lipinski
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.)
Lord Manufacturing Co
Original Assignee
Lord Manufacturing 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 Lord Manufacturing Co filed Critical Lord Manufacturing Co
Priority to GB638958A priority Critical patent/GB869204A/en
Publication of GB869204A publication Critical patent/GB869204A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/56—Treatment of aluminium or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

The bondability of an aluminium or aluminium-base alloy surface toward organic polymeric material is improved by treating the surface with a nitrosulphonic acid solution containing nitric acid and/or boric acid. The solution should have a pH of 0.5-4 and should be free of strong acid other than the nitrosulphonic and nitric acids, although it may, if desired, contain the hydrofluoric acid generated by the addition of up to 5% by weight of a fluoride based on the weight of the nitrosulphonic acid. Suitable nitrosulphonic acids (which may be added to the solution as such or as salts) have the formula R(SO3H)n(NO2)m where R is an organic radical, preferably aromatic, and n and m are 1 or more: specific examples are given. Boric acid may be added as such or as a borate. The solution may also contain a non-ionic wetting agent and an aluminium complexing agent. The solvent for the solution may be water and/or methanol, ethanol, a glycerol, glycol or glycol ether.
GB638958A 1958-02-27 1958-02-27 Treatment of aluminium surfaces Expired GB869204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB638958A GB869204A (en) 1958-02-27 1958-02-27 Treatment of aluminium surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB638958A GB869204A (en) 1958-02-27 1958-02-27 Treatment of aluminium surfaces

Publications (1)

Publication Number Publication Date
GB869204A true GB869204A (en) 1961-05-31

Family

ID=9813626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB638958A Expired GB869204A (en) 1958-02-27 1958-02-27 Treatment of aluminium surfaces

Country Status (1)

Country Link
GB (1) GB869204A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393080A1 (en) * 1977-06-01 1978-12-29 Desauge Marcel Graduated aluminium alloy scale, esp. folding rulers - mfd. using white enamel as background to etched graduation marks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2393080A1 (en) * 1977-06-01 1978-12-29 Desauge Marcel Graduated aluminium alloy scale, esp. folding rulers - mfd. using white enamel as background to etched graduation marks

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