EP1336669A2 - Verfahren zum Bereitstellen eines schildkrötenpanzerartigen Farbeffekts auf Metalloberflächen - Google Patents

Verfahren zum Bereitstellen eines schildkrötenpanzerartigen Farbeffekts auf Metalloberflächen Download PDF

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Publication number
EP1336669A2
EP1336669A2 EP03075332A EP03075332A EP1336669A2 EP 1336669 A2 EP1336669 A2 EP 1336669A2 EP 03075332 A EP03075332 A EP 03075332A EP 03075332 A EP03075332 A EP 03075332A EP 1336669 A2 EP1336669 A2 EP 1336669A2
Authority
EP
European Patent Office
Prior art keywords
process according
substrate
tortoise
chromatic effect
buffering
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
EP03075332A
Other languages
English (en)
French (fr)
Other versions
EP1336669B1 (de
EP1336669B9 (de
EP1336669A3 (de
Inventor
Ugo Gussalli Beretta
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.)
Beretta SpA
Original Assignee
Fabbrica dArmi Pietro Beretta SpA
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 Fabbrica dArmi Pietro Beretta SpA filed Critical Fabbrica dArmi Pietro Beretta SpA
Publication of EP1336669A2 publication Critical patent/EP1336669A2/de
Publication of EP1336669A3 publication Critical patent/EP1336669A3/de
Publication of EP1336669B1 publication Critical patent/EP1336669B1/de
Application granted granted Critical
Publication of EP1336669B9 publication Critical patent/EP1336669B9/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • 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
    • C23C22/50—Treatment of iron or alloys based thereon
    • 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
    • C23C22/52—Treatment of copper or alloys based thereon
    • 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
    • C23C22/58—Treatment of other metallic material
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer

Definitions

  • the present invention relates to a process for providing a tortoise-shell chromatic effect to metallic substrates.
  • the present invention relates to a process for providing a tortoise-shell chromatic effect to nickelated components of fire-arms.
  • tortoise-shell effect is a particular spotted chromatic effect conferred for ornamental purposes to tools or metallic parts of devices of varying origins.
  • the tortoise-shell effect is particularly requested for providing an aesthetically pleasant chromatic effect to the action body or other metallic parts of shotguns.
  • a tortoising process of metallic substrates which requires high operating temperatures and also a low temperature chemical process capable of providing a simple uniform colouring to metallic substrates, are currently known.
  • the high temperature tortoising process consists in the thermal treatment of a steel matrix which comprises heating to a temperature of about 700°C and quenching the steel in an aqueous solution of oxidizing salts.
  • the spotted colouring is created by the different surface oxidation degree of the steel and by the different thickness of the oxide layer formed.
  • the thermal treatment required for obtaining the particular aesthetic tortoise-shell effect has a negative influence on the hardness and mechanical performance in general of the metallic component treated.
  • One of the main objectives of the present invention therefore relates to providing a process for giving a tortoise-shell chromatic effect to metallic substrates without having to resort to temperatures which cause distortion of the metals treated.
  • Another objective of the present invention relates to a chemical tortoising process of end-products or metallic components which allows the production of a long-lasting chromatic effect, which is appreciable from an aesthetic point of view.
  • a further objective of the present invention relates to a chemical process capable of providing, at non-high temperatures, a persistent tortoise-shell chromatic effect to nickelated components of fire-arms.
  • a first aspect of the present invention relates to a process for providing a tortoise-shell chromatic effect to substrates which includes the heating of a metallic substrate and application, under heat, on a portion of said metallic substrate, of an oxidizing solution comprising a thiosulfate, a reagent metal and an acidifying compound.
  • the metallic substrate to be treated is heated to a temperature at which there are substantially no thermal distortions which can jeopardize its use in high-precision applications.
  • the oxidizing solution of the invention is typically a solution based on sodium thiosulfate containing a reagent metal conveniently in the form of an acetate, preferably consisting of copper or lead acetate or their mixtures.
  • the term acidifying compound includes compounds with acid hydrolysis or however compounds which when added to an aqueous solution are capable of reducing its pH.
  • Suitable acidifying compounds comprise organic acids such as carboxylic acids, for example, acetic acid, citric acid; oxalic acid, and potassium acid tartrate; inorganic acids such as hypophosphorous acid; salicylic acid; ketones such as acetone; aldehydes such as formic aldehyde and acetic aldehyde and their mixtures.
  • organic acids such as carboxylic acids, for example, acetic acid, citric acid; oxalic acid, and potassium acid tartrate
  • inorganic acids such as hypophosphorous acid
  • salicylic acid ketones such as acetone
  • aldehydes such as formic aldehyde and acetic aldehyde and their mixtures.
  • Substrates suitable for being subjected to the tortoising process of the invention comprise metallic and non-metallic matrixes, provided they have at least one surface portion with a metallic layer, galvanically deposited or with another technology.
  • Plastic matrixes with a nickelated surface, steel matrixes, nickelated steels, metal alloys such as aluminum, copper, nickel alloys and super-alloys, can be used, for example.
  • Nickelated details or components of end-products and articles for varying uses can be appropriately treated with the process of the invention.
  • the application of said oxidizing solution advantageously takes place by means of buffering on localized portions of the metallic substrate to be treated so as to cause oxidation and consequently a chromatic variation, limited to the buffered areas.
  • the surface metal layer undergoes a more intense oxidation process the greater the residence time of the oxidizing solution.
  • An embodiment of the process of the invention comprises the direct development of the chromatic effect on the metallic substrate using a solution based on thiosulfate containing copper acetate as reagent metal.
  • a metallic substrate is heated to a temperature conveniently within the range of 100 to 110°C and subsequently buffered with a chromatically effective quantity of an aqueous solution containing sodium thiosulfate, copper acetate and potassium acid tartrate, at a temperature advantageously within the range of 40-110°C, preferably 60-80°C, until the development of the desired chromatic variation.
  • the buffering phase can be repeated once or several times, until the desired tonality or chromatic effect is obtained.
  • the tortoise-shell chromatic effect is caused by the oxidizing action of the solution on the surface of the metallic substrate.
  • the coloured oxidized layer formed is firmly anchored to the metallic surface producing a long-lasting chromatic effect.
  • the Applicant has discovered that the direct development of a long-lasting chromatic variation which is particularly appreciable from an aesthetic point of view, is obtained using an oxidizing aqueous solution containing 220-240 g/l of sodium thiosulfate, 30-40 g/l of copper acetate and 30-40 g/l of potassium acid tartrate.
  • This further embodiment of the invention therefore includes:
  • This second oxidizing solution contains a strong oxidizing agent, preferably consisting of ammonium persulfate, preferably present in a quantity ranging from 150-180 g/l.
  • the process of the invention allows a variety of chromatic effects and different colourings to be obtained, by simply increasing the contact time of the oxidizing solutions on the surface of the metallic substrates. It is thus possible to produce yellow-gold, red, blue and grey colourings and shades in different tonalities.
  • a nickelated steel action body for a shotgun was initially heated to a temperature of 100°C and subsequently subjected to localized buffering at a temperature of 70°C with an oxidizing aqueous solution containing 230 g/l of sodium thiosulfate, 35 g/l of copper acetate and 35 g/l of potassium acid tartrate, until a spotted colouring, of the tortoise-shell type, is formed.
  • aqueous solution containing 230 g/l of sodium thiosulfate, 22 g/l of lead acetate and 25 g/l of potassium acid tartrate was applied with a buffer on a nickel alloy article heated to a temperature of 140°C.
  • the article was immersed or buffered, without rinsing, at a temperature of 60°C, with an aqueous solution containing 160 g/l of ammonium persulfate. After a few minutes, a chromatic variation, with a typical tortoise-shell effect, is formed in the buffered areas.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP03075332A 2002-02-15 2003-02-04 Verfahren zum Bereitstellen eines schildkrötenpanzerartigen Farbeffekts auf Metalloberflächen Expired - Lifetime EP1336669B9 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20020307 2002-02-15
IT2002MI000307A ITMI20020307A1 (it) 2002-02-15 2002-02-15 Procedimento per conferire un effetto cromatico a tartaruga a substrati metallici

Publications (4)

Publication Number Publication Date
EP1336669A2 true EP1336669A2 (de) 2003-08-20
EP1336669A3 EP1336669A3 (de) 2004-06-30
EP1336669B1 EP1336669B1 (de) 2007-03-28
EP1336669B9 EP1336669B9 (de) 2007-10-03

Family

ID=11449265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075332A Expired - Lifetime EP1336669B9 (de) 2002-02-15 2003-02-04 Verfahren zum Bereitstellen eines schildkrötenpanzerartigen Farbeffekts auf Metalloberflächen

Country Status (7)

Country Link
US (1) US20030159762A1 (de)
EP (1) EP1336669B9 (de)
JP (1) JP2003277946A (de)
AT (1) ATE358193T1 (de)
DE (1) DE60312752D1 (de)
ES (1) ES2285035T4 (de)
IT (1) ITMI20020307A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2464700A (en) * 2008-10-22 2010-04-28 Univ Plymouth A method of colouring tin

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2038796A5 (en) * 1969-03-28 1971-01-08 Seailles Pierre Decorative coating with patina effect for - lampshades etc
GB1229502A (de) * 1968-05-31 1971-04-21
US4195124A (en) * 1976-04-26 1980-03-25 Sekisui Kagaku Kogyo Kabushiki Kaisha Solar radiation energy absorber
WO1995029207A1 (en) * 1994-04-26 1995-11-02 Copper Refineries Pty. Ltd. Artificial patina
FR2735075A1 (fr) * 1995-06-07 1996-12-13 Ams Europ Procede pour conferer un aspect metallique patine a une piece en matiere plastique.
WO1997035046A1 (fr) * 1996-03-15 1997-09-25 Brumagne Jean Claude Procede de traitement de surface metallique d'un materiau compose ou revetu de cuivre et/ou de zinc

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Publication number Priority date Publication date Assignee Title
SU673667A1 (ru) * 1978-02-06 1979-07-15 Предприятие П/Я В-8657 Раствор дл химического окрашивани черных и цветных металлов и их сплавов
SU729281A1 (ru) * 1978-04-26 1980-04-28 Воронежский технологический институт Способ химического окрашивани медной поверхности в светло-голубой цвет
US4631093A (en) * 1984-07-27 1986-12-23 Tre Corporation Chromate free method of treating metal substrates to impart corrosion resistance and color to the substrate surface
US5348767A (en) * 1993-09-02 1994-09-20 Sandor Raymond P Methods for production of faux effects using select color mixtures and blending solvents
IL118281A (en) * 1996-05-15 2000-06-29 Nickel Rainbow Ltd Articles having a colored metallic coating and process for their manufacture
JP3669844B2 (ja) * 1998-08-13 2005-07-13 日本ペイント株式会社 リン酸系前処理を含むノンクロム防錆方法
US6309476B1 (en) * 1999-05-24 2001-10-30 Birchwood Laboratories, Inc. Composition and method for metal coloring process
US6555691B2 (en) * 2000-07-25 2003-04-29 Fuji Photo Film Co., Ltd. Color developing agent, azo dye, silver halide photographic light-sensitive material, and image-forming method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1229502A (de) * 1968-05-31 1971-04-21
FR2038796A5 (en) * 1969-03-28 1971-01-08 Seailles Pierre Decorative coating with patina effect for - lampshades etc
US4195124A (en) * 1976-04-26 1980-03-25 Sekisui Kagaku Kogyo Kabushiki Kaisha Solar radiation energy absorber
WO1995029207A1 (en) * 1994-04-26 1995-11-02 Copper Refineries Pty. Ltd. Artificial patina
FR2735075A1 (fr) * 1995-06-07 1996-12-13 Ams Europ Procede pour conferer un aspect metallique patine a une piece en matiere plastique.
WO1997035046A1 (fr) * 1996-03-15 1997-09-25 Brumagne Jean Claude Procede de traitement de surface metallique d'un materiau compose ou revetu de cuivre et/ou de zinc

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 198012 Derwent Publications Ltd., London, GB; Class M14, AN 1980-21680C XP002032465 & SU 673 667 A (SHAKHOVA G A), 15 July 1979 (1979-07-15) *
DATABASE WPI Section Ch, Week 198049 Derwent Publications Ltd., London, GB; Class A35, AN 1980-88040C XP002032466 & SU 729 281 A (LAKIZA V V), 28 April 1980 (1980-04-28) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2464700A (en) * 2008-10-22 2010-04-28 Univ Plymouth A method of colouring tin
WO2010046656A1 (en) * 2008-10-22 2010-04-29 University Of Plymouth A method of colouring tin and tin-containing articles
GB2464700B (en) * 2008-10-22 2012-11-28 Univ Plymouth A method of colouring tin and tin-containing articles
US9163312B2 (en) 2008-10-22 2015-10-20 University Of Plymouth Method of colouring tin and tin-containing articles

Also Published As

Publication number Publication date
EP1336669B1 (de) 2007-03-28
ITMI20020307A1 (it) 2003-08-18
ITMI20020307A0 (it) 2002-02-15
DE60312752D1 (de) 2007-05-10
US20030159762A1 (en) 2003-08-28
EP1336669B9 (de) 2007-10-03
ES2285035T4 (es) 2008-05-16
ATE358193T1 (de) 2007-04-15
JP2003277946A (ja) 2003-10-02
EP1336669A3 (de) 2004-06-30
ES2285035T3 (es) 2007-11-16

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