GB1482457A - Method of forming a corrosion resistant coating on a metal surface and a composition for use in the method - Google Patents

Method of forming a corrosion resistant coating on a metal surface and a composition for use in the method

Info

Publication number
GB1482457A
GB1482457A GB45649/74A GB4564974A GB1482457A GB 1482457 A GB1482457 A GB 1482457A GB 45649/74 A GB45649/74 A GB 45649/74A GB 4564974 A GB4564974 A GB 4564974A GB 1482457 A GB1482457 A GB 1482457A
Authority
GB
United Kingdom
Prior art keywords
acid
composition
reducing agent
resin
metal
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
GB45649/74A
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.)
BRUGAROLAS SA
Original Assignee
BRUGAROLAS SA
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
Priority claimed from ES420039A external-priority patent/ES420039A1/en
Priority claimed from ES426388A external-priority patent/ES426388A2/en
Application filed by BRUGAROLAS SA filed Critical BRUGAROLAS SA
Publication of GB1482457A publication Critical patent/GB1482457A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C22/24—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 containing hexavalent chromium compounds
    • C23C22/33—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 containing hexavalent chromium compounds containing also phosphates

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)
  • Chemical Treatment Of Metals (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1482457 Phosphatizing composition and method; electro-coating BRUGAROLAS SA and F GRUBER 22 Oct 1974 [22 Oct 1973 10 May 1974] 45649/74 Headings C7B and C7U A phosphatizing composition comprises (a) a solution of a Zn, Mn, Fe or Pb primary phosphate, (b) an organic reducing agent containing a hydroxy, amino, aldehyde, or keto-group (c) a resin which is not an organic reducing agent as under (b), (d) chromic acid or a salt thereof, ingredient (d) being present in amount sufficient to at least partially oxidize ingredient (b) with consequent production of trivalent Cr ions. In a method of treating metal, e.g. Fe, Al, or Zn, compound (a) above is treated with reducing agent (b), the resulting composition is oxidized with chromic acid, salt; the composition is applied to the metal surface and dried; application may be electrolytic using the metal as cathode, or the surface may be sprayed or immersed hot or cold. The reducing agent may be a carbohydrate, cellulose, starch, a polyalcohol, an alcohol, aldehyde, ketone or amine; it may be solubilized with H 3 PO 4 , borophosphoric acid, H 3 PO 4 and alkylvinyl- or polyvinyl-phosphoric acids. The resin may be an acrylic or urea-formaldehyde resin. Other ingredients of the composition may be:- tannic acid, acrylic acid, polycarboxylic or polyhydroxycarboxylic acids, accelerators such as fluorides, nitrates, nitrites, oxalic acid, boric acid, fluosilicates, picric acid or EDTA, organic hardeners and plasticizers, a list is given, corrosion inhibitors, e.g. borates, amines, ethoxylated amines, nitrophenols, drying agents, anti-foaming agents, and chelating agents.
GB45649/74A 1973-10-22 1974-10-22 Method of forming a corrosion resistant coating on a metal surface and a composition for use in the method Expired GB1482457A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES420039A ES420039A1 (en) 1973-10-22 1973-10-22 A process of filmogenic phosphatation of metal surfaces. (Machine-translation by Google Translate, not legally binding)
ES426388A ES426388A2 (en) 1974-05-10 1974-05-10 Filmogenum phosphatation procedure of metal surfaces. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
GB1482457A true GB1482457A (en) 1977-08-10

Family

ID=26155870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45649/74A Expired GB1482457A (en) 1973-10-22 1974-10-22 Method of forming a corrosion resistant coating on a metal surface and a composition for use in the method

Country Status (6)

Country Link
CA (1) CA1039157A (en)
DE (1) DE2449967C2 (en)
FR (1) FR2248330B1 (en)
GB (1) GB1482457A (en)
IT (1) IT1024649B (en)
NL (1) NL7413754A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136455A (en) * 1983-03-15 1984-09-19 Pyrene Chemical Services Ltd Treatment of ferrous substrates
GB2331997B (en) * 1996-08-29 2000-07-26 Danfoss As A method of processing a metal workpiece comprising electrochemically phosphating, lubricating, and then cold forming
CN103695935A (en) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 Metal anti-discoloration antirust liquid and preparation method thereof
CN103710687A (en) * 2013-11-28 2014-04-09 安徽速克达车业有限公司 Water-soluble rust removal and prevention solution and preparation method thereof
CN110312823A (en) * 2017-02-13 2019-10-08 德国艾托特克公司 Increase the method for its corrosion resistance for electrolytic passivation outermost chromium or outermost chromium alloy layer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8201849A (en) * 1982-05-06 1983-12-01 Philips Nv ARTICLE WITH A NICKEL-PHOSPHORUS ALLOY COAT AND CONVERSION COAT.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136455A (en) * 1983-03-15 1984-09-19 Pyrene Chemical Services Ltd Treatment of ferrous substrates
GB2331997B (en) * 1996-08-29 2000-07-26 Danfoss As A method of processing a metal workpiece comprising electrochemically phosphating, lubricating, and then cold forming
CN103710687A (en) * 2013-11-28 2014-04-09 安徽速克达车业有限公司 Water-soluble rust removal and prevention solution and preparation method thereof
CN103695935A (en) * 2013-11-29 2014-04-02 明光市留香泵业有限公司 Metal anti-discoloration antirust liquid and preparation method thereof
CN110312823A (en) * 2017-02-13 2019-10-08 德国艾托特克公司 Increase the method for its corrosion resistance for electrolytic passivation outermost chromium or outermost chromium alloy layer
US10900140B2 (en) 2017-02-13 2021-01-26 Atotech Deutschland Gmbh Method for electrolytically passivating an outermost chromium or outermost chromium alloy layer to increase corrosion resistance thereof
CN110312823B (en) * 2017-02-13 2021-12-10 德国艾托特克公司 Method for electrolytically passivating outermost chromium or outermost chromium alloy layers to increase corrosion resistance thereof

Also Published As

Publication number Publication date
NL7413754A (en) 1975-04-24
DE2449967A1 (en) 1975-04-30
IT1024649B (en) 1978-07-20
FR2248330B1 (en) 1979-03-23
FR2248330A1 (en) 1975-05-16
CA1039157A (en) 1978-09-26
DE2449967C2 (en) 1987-05-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931022