EP2620529A1 - Method for producing matt copper deposits - Google Patents
Method for producing matt copper deposits Download PDFInfo
- Publication number
- EP2620529A1 EP2620529A1 EP12152390.6A EP12152390A EP2620529A1 EP 2620529 A1 EP2620529 A1 EP 2620529A1 EP 12152390 A EP12152390 A EP 12152390A EP 2620529 A1 EP2620529 A1 EP 2620529A1
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- Prior art keywords
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- deposition
- matt
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Classifications
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- 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
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
Definitions
- the present invention relates to a method for deposition of matt copper deposits in the field of decorative coatings.
- Matt copper coatings in the field of decorative coatings are required as a surface finish for e.g. sanitary equipment.
- Another application of matt copper coatings is to replace matt nickel layers ("satin nickel") as an intermediate layer in decorative multilayer coating systems which becomes more demanding due to the toxicity of nickel.
- a homogeneous matt appearance is required for decorative metal layers.
- the homogeneity of the matt appearance can easily be achieved on substrates which have no complex shape because the current density distribution during electroplating of matt copper layers is within a narrow range.
- the current density during electroplating is within a wide range.
- Typical substrates having a complex shape which are to be coated with a matt copper coating are for example shower heads and automotive interior parts.
- matt copper layers Another requirement for matt copper layers is that their matt level should be adjustable in order to be able to manufacture copper layers having different matt levels.
- Plating bath compositions comprising at least one polyglycerine compound for producing matt copper layers during manufacture of printed circuit boards are disclosed in US 2004/0020783 A1 . It is neither possible to obtain a homogeneously matt copper deposit on a substrate having a complex shape nor to adjust the matt level of such a copper deposit when using the electrolyte disclosed therein.
- the copper coatings obtained by the method according to the present invention have a homogeneous matt appearance on substrates having a complex shape. Furthermore, the matt appearance of the copper coating can be adjusted during deposition of the individual copper layers.
- the method for deposition of a matt copper coating comprises deposition of two individual copper layers onto a substrate from two individual copper electrolytes which are herein denoted first electrolyte from which the first copper layer is deposited and second electrolyte from which the second copper layer is deposited onto the first copper layer.
- the first electrolyte comprises a source of copper ions, at least one acid and at least one polyether compound.
- the first electrolyte does not contain an organic compound comprising divalent sulfur, e.g., sulfides, disulfides, thioles, and derivatives thereof.
- Copper ions are added to the first electrolyte in the form of a water-soluble copper salt or an aqueous solution thereof.
- the source of copper ions is selected from copper sulfate and copper methane sulfonate.
- the concentration of copper ions in the first electrolyte preferably ranges from 15 to 75 g/I, more preferably from 40 to 60 g/I.
- the at least one acid in the first electrolyte is selected from the group comprising sulfuric acid, fluoro boric acid and methane sulfonic acid.
- the concentration of the at least one acid in the first electrolyte preferably ranges from 20 to 400 g/I and more preferably from 40 to 300 g/I.
- sulfuric acid is used as the acid, it is preferably added in form of a 50 to 96 wt.-% solution. More preferably, sulphuric acid is added to the first electrolyte as a 50 wt.-% aqueous solution of sulfuric acid.
- the at least one polyether compound in the first electrolyte is selected from the group consisting of polyalkylene ethers and polyglycerine compounds.
- Suitable polyalkylene ethers are selected from the group consisting of polyethylene glycol, polypropylene glycol, stearylalcoholpolyglycolether, nonylphenolpolyglycolether, octanolpolyalkylenglcolether, octanediol-bis-(polyalkylenglycolether), poly(ethylenglycol-ran-propylenglycol), poly(ethylenglycol)-block-poly(propylenglycol)-block-poly(ethylenglycol) and poly-(propylenglycol)-block-poly(ethylenglycol)-block-poly(propylenglycol).
- Suitable polyglycerine compounds are selected from the group consisting of poly(1,2,3-propantriol), poly(2,3-epoxy-1-propanol) and derivatives thereof which are represented by formulae (1), (2) and (3): wherein
- Polyglycerine compounds are produced according to known methods. Indications on the conditions of production are disclosed in the following publications for example: Cosmet. Sci. Technol. Ser., glycerines, page 106 and US 3,945,894 . Further details on the syntheses of polyglycerine compounds according to formulae (1), (2) and (3) are disclosed in US 2004/0020783 A1 .
- the at least one polyether compound in the first electrolyte is selected from compounds according to formulae (1), (2) and (3).
- the concentration of the at least one polyether compound or all polyether compounds together in case more than one polyether compound is added preferably ranges from 0.005 g/I to 20 g/I, more preferably from 0.01 g/I to 5 g/I.
- the temperature of the first electrolyte is preferably adjusted to a value in the range of from 30 to 60°C, more preferably from 40 to 50 °C.
- the current density applied to the substrate during copper deposition from the first aqueous electrolyte preferably ranges from 0.5 to 5 A/dm 2 , more preferably from 1 to 3 A/dm 2 .
- the substrate is rinsed with water before depositing the second copper layer from the second electrolyte.
- Copper ions are added to the second electrolyte as a water-soluble copper salt or an aqueous solution thereof.
- the source of copper ions is selected from copper sulfate and copper methane sulfonate.
- the concentration of copper ions in the second electrolyte preferably ranges from 15 to 75 g/I, more preferably from 40 to 60 g/I.
- the at least one acid in the second electrolyte is selected from the group comprising sulfuric acid, fluoro boric acid and methane sulfonic acid.
- the concentration of the at least one acid in the second electrolyte preferably ranges from 20 to 400 g/I and more preferably from 40 to 300 g/I.
- sulfuric acid is used as the acid, it is added in form of a 50 to 96 wt.-% solution.
- sulfuric acid is added as a 50 wt.-% aqueous solution of sulfuric to the second electrolyte.
- the second electrolyte further comprises a first water-soluble sulfur-containing additive and a second water-soluble sulfur-containing additive.
- the first water-soluble sulfur-containing compound is an alkyl sulfonic acid derivative.
- the alkyl sulfonic acid derivative comprises divalent sulfur.
- the second water-soluble sulfur-containing compound is an aromatic sulfonic acid derivative.
- the aromatic sulfonic acid derivative comprises divalent sulfur.
- the first sulfur-containing additive is more preferably selected from the group consisting of compounds according to formulae (4) and (5):
- the concentration of the first sulfur-containing additive in the second electrolyte preferably ranges from 0.0001 to 0.05 g/l, more preferably from 0.0002 to 0.025 g/I.
- the second sulfur-containing additive in the second electrolyte is more preferably selected from the group consisting of compounds according to formulae (6) and (7):
- the second sulfur-containing additive is selected from compounds according to formula (6).
- the concentration of the second sulfur-containing additive in the second electrolyte preferably ranges from 0.005 to 1 g/I, more preferably from 0.01 to 0.25 g/l.
- the second electrolyte further comprises one or more carrier additive selected from the group consisting of polyvinylalcohol, carboxymethylcellulose, polyethylene glycol, polypropylene glycol, stearic acid polyglycolester, alkoxylated naphtoles, oleic acid polyglycolester, stearylalcoholpolyglycolether, nonylphenolpolyglycolether, octanolpolyalkylenglycolether, octanediol-bis-(polyalkylenglycolether), poly(ethylenglycol-ran-propylenglycol), poly(ethylenglycol)-block-poly(propylenglycol)-block-poly(ethylenglycol) and poly(propylenglycol)-block-poly(ethylenglycol)-block-poly(propylenglycol).
- carrier additive selected from the group consisting of polyvinylal
- the concentration of the optional carrier additive in the second electrolyte preferably ranges from 0.005 g/I to 5 g/I, more preferably from 0.01 g/I to 3 g/I.
- the temperature of the second electrolyte is preferably adjusted to a value in the range of from 20 to 50 °C, most preferably of from 25 to 30°C.
- the current density applied to the substrate during copper deposition from the second aqueous electrolytes preferably ranges from 0.5 to 5 A/dm 2 , more preferably from 1 to 3 A/dm 2 .
- the matt level of the copper surface may be tailored by adjusting the thicknesses of the first and second copper layer by simple experimentation. A more matt appearance may be achieved with a thinner second copper layer, whereas a less matt appearance may be achieved with a thicker second copper layer.
- M sodium and 200 mg/l polyethylene gylcol.
- the copper surface obtained has a homogenous technical gloss which is not desired for decorative applications.
- a first layer of copper was deposited onto ABS and brass substrates having a complex shape from the electrolyte used in example 2. Thereon, a second copper layer was deposited from the electrolyte used in example 1.
- a first copper layer was deposited onto ABS and brass substrates having a complex shape from the electrolyte used in example 1.
- the second electrolyte did not contain a second sulfur-containing additive selected from compounds according to formulae (6) and (7).
- the resulting copper surface has a non-homogeneous matt appearance which is not acceptable for decorative applications.
- a first copper layer was deposited onto ABS and brass substrates having a complex shape from the electrolyte used in example 1.
- the second electrolyte did not contain a first sulfur-containing additive selected from compounds according to formulae (4) and (5).
- the copper surface obtained has a matt appearance with burnt areas (shady black appearance) which is not acceptable for decorative applications.
- the first copper layer was deposited onto the ABS and brass substrates from the electrolyte used in Example 1.
- the second copper layer was deposited thereon from the electrolyte used in Example 2.
- the copper surface obtained has a homogeneous matt appearance which is desired for decorative applications.
- the first copper layer was deposited from a first electrolyte comprising 80 g/l CuSO 4 ⁇ 5H 2 O, 240 g/I sulfuric acid, and 1 g/I polyethylene glycol.
- the second copper layer was deposited thereon from the electrolyte used in Example 2.
- Example 1 First and second electrolytes used in Examples 1 to 6.
- Example 1* Example 2*
- Example 3* Example 4*
- Example 6 Example 7
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
- The present invention relates to a method for deposition of matt copper deposits in the field of decorative coatings.
- Matt copper coatings in the field of decorative coatings are required as a surface finish for e.g. sanitary equipment. Another application of matt copper coatings is to replace matt nickel layers ("satin nickel") as an intermediate layer in decorative multilayer coating systems which becomes more demanding due to the toxicity of nickel.
- A homogeneous matt appearance is required for decorative metal layers. The homogeneity of the matt appearance can easily be achieved on substrates which have no complex shape because the current density distribution during electroplating of matt copper layers is within a narrow range. However, in cases where the substrate to be coated has a complex shape, the current density during electroplating is within a wide range. Typical substrates having a complex shape which are to be coated with a matt copper coating are for example shower heads and automotive interior parts.
- Another requirement for matt copper layers is that their matt level should be adjustable in order to be able to manufacture copper layers having different matt levels.
- Plating bath compositions comprising at least one polyglycerine compound for producing matt copper layers during manufacture of printed circuit boards are disclosed in
US 2004/0020783 A1 . It is neither possible to obtain a homogeneously matt copper deposit on a substrate having a complex shape nor to adjust the matt level of such a copper deposit when using the electrolyte disclosed therein. - It is the objective of the present invention to provide a method for depositing copper layers which have a homogeneous and adjustable matt appearance, especially on substrates having a complex shape.
- This objective is solved by a method for deposition of a matt copper coating, comprising, in this order, the steps
- a. Providing a substrate,
- b. Depositing a first copper layer onto the substrate from a first aqueous electrolyte comprising a source of copper ions, at least one acid and at least one polyether compound wherein said first electrolyte does not contain an organic compound comprising divalent sulfur
and - c. Depositing a second copper layer onto the first copper layer from a second aqueous electrolyte comprising a source of copper ions, at least one acid, a first water soluble sulfur-containing additive selected from the group consisting of alkyl sulfonic acid derivatives and a second water soluble sulfur-containing additive selected from the group consisting of aromatic sulfonic acid derivatives.
- The copper coatings obtained by the method according to the present invention have a homogeneous matt appearance on substrates having a complex shape. Furthermore, the matt appearance of the copper coating can be adjusted during deposition of the individual copper layers.
- The method for deposition of a matt copper coating comprises deposition of two individual copper layers onto a substrate from two individual copper electrolytes which are herein denoted first electrolyte from which the first copper layer is deposited and second electrolyte from which the second copper layer is deposited onto the first copper layer.
- The first electrolyte comprises a source of copper ions, at least one acid and at least one polyether compound. The first electrolyte does not contain an organic compound comprising divalent sulfur, e.g., sulfides, disulfides, thioles, and derivatives thereof.
- Copper ions are added to the first electrolyte in the form of a water-soluble copper salt or an aqueous solution thereof. Preferably, the source of copper ions is selected from copper sulfate and copper methane sulfonate. The concentration of copper ions in the first electrolyte preferably ranges from 15 to 75 g/I, more preferably from 40 to 60 g/I.
- The at least one acid in the first electrolyte is selected from the group comprising sulfuric acid, fluoro boric acid and methane sulfonic acid. The concentration of the at least one acid in the first electrolyte preferably ranges from 20 to 400 g/I and more preferably from 40 to 300 g/I.
- In case sulfuric acid is used as the acid, it is preferably added in form of a 50 to 96 wt.-% solution. More preferably, sulphuric acid is added to the first electrolyte as a 50 wt.-% aqueous solution of sulfuric acid.
- The at least one polyether compound in the first electrolyte is selected from the group consisting of polyalkylene ethers and polyglycerine compounds.
- Suitable polyalkylene ethers are selected from the group consisting of polyethylene glycol, polypropylene glycol, stearylalcoholpolyglycolether, nonylphenolpolyglycolether, octanolpolyalkylenglcolether, octanediol-bis-(polyalkylenglycolether), poly(ethylenglycol-ran-propylenglycol), poly(ethylenglycol)-block-poly(propylenglycol)-block-poly(ethylenglycol) and poly-(propylenglycol)-block-poly(ethylenglycol)-block-poly(propylenglycol).
-
- n is an integer from 1 to 80, preferably from 2 to 30;
- R6, R7 and R8 are identical or different and are selected from the group consisting of hydrogen, alkyl, acyl, phenyl and benzyl, wherein alkyl preferably is linear or branched C1 to C18 alkyl and acyl preferably is R10-CO, wherein R10 is linear or branched C1 to C18 alkyl, phenyl or benzyl; alkyl phenyl and benzyl in formula (1) may be substituted;
- n is an integer >1, m is an integer >1 with the provisio n + m is ≤30;
- R6, R7, R8 and R9 are identical or different and are selected from the group consisting of hydrogen, alkyl, acyl, phenyl and benzyl, wherein alkyl preferably is linear or branched C1 to C18 alkyl and acyl preferably is R10-CO, wherein R10 is linear or branched C1 to C18 alkyl, phenyl or benzyl; alkyl phenyl and benzyl in formula (2) may be substituted;
- n is an integer from 1 to 80; preferably from 2 to 20;
- and wherein R6, R7 are selected from the group consisting of hydrogen, alkyl, acyl, phenyl and benzyl, wherein alkyl preferably is linear or branched C1 to C18 alkyl and acyl preferably is R10-CO, wherein R10 is linear or branched C1 to C18 alkyl, phenyl or benzyl; alkyl phenyl and benzyl in formula (3) may be substituted.
- Polyglycerine compounds are produced according to known methods. Indications on the conditions of production are disclosed in the following publications for example: Cosmet. Sci. Technol. Ser., glycerines, page 106 and
US 3,945,894 . Further details on the syntheses of polyglycerine compounds according to formulae (1), (2) and (3) are disclosed inUS 2004/0020783 A1 . - Most preferably, the at least one polyether compound in the first electrolyte is selected from compounds according to formulae (1), (2) and (3).
- The concentration of the at least one polyether compound or all polyether compounds together in case more than one polyether compound is added preferably ranges from 0.005 g/I to 20 g/I, more preferably from 0.01 g/I to 5 g/I.
- During operation, the temperature of the first electrolyte is preferably adjusted to a value in the range of from 30 to 60°C, more preferably from 40 to 50 °C.
- The current density applied to the substrate during copper deposition from the first aqueous electrolyte preferably ranges from 0.5 to 5 A/dm2, more preferably from 1 to 3 A/dm2.
- Optionally, the substrate is rinsed with water before depositing the second copper layer from the second electrolyte.
- Copper ions are added to the second electrolyte as a water-soluble copper salt or an aqueous solution thereof. Preferably, the source of copper ions is selected from copper sulfate and copper methane sulfonate. The concentration of copper ions in the second electrolyte preferably ranges from 15 to 75 g/I, more preferably from 40 to 60 g/I.
- The at least one acid in the second electrolyte is selected from the group comprising sulfuric acid, fluoro boric acid and methane sulfonic acid. The concentration of the at least one acid in the second electrolyte preferably ranges from 20 to 400 g/I and more preferably from 40 to 300 g/I.
- In case sulfuric acid is used as the acid, it is added in form of a 50 to 96 wt.-% solution. Preferably, sulfuric acid is added as a 50 wt.-% aqueous solution of sulfuric to the second electrolyte.
- The second electrolyte further comprises a first water-soluble sulfur-containing additive and a second water-soluble sulfur-containing additive.
- The first water-soluble sulfur-containing compound is an alkyl sulfonic acid derivative. Preferably, the alkyl sulfonic acid derivative comprises divalent sulfur. The second water-soluble sulfur-containing compound is an aromatic sulfonic acid derivative. Preferably, the aromatic sulfonic acid derivative comprises divalent sulfur.
- The first sulfur-containing additive is more preferably selected from the group consisting of compounds according to formulae (4) and (5):
- R1S-(CH2)n-SO3R2 (4)
- R3SO3-(CH2)m-S-S-(CH2)m-SO3R3 (5)
- R1 is selected from the group consisting of hydrogen, methyl, ethyl, propyl, butyl, lithium, sodium, potassium and ammonium, more preferably R1 is selected from the group consisting of hydrogen, methyl, ethyl, propyl, sodium and potassium;
- n is an integer from 1 to 6, more preferably n is an integer from 2 to 4;
- R2 is selected from the group consisting of hydrogen, methyl, ethyl, propyl, butyl, lithium, sodium, potassium and ammonium, more preferably, R2 is selected from the group consisting of hydrogen, sodium and potassium;
- R3 is selected from the group consisting of hydrogen, methyl, ethyl, propyl, butyl, lithium, sodium, potassium and ammonium, more preferably R3 is selected from the group consisting of hydrogen, sodium, potassium and
- m is an integer from 1 to 6, more preferably m is an integer from 2 to 4.
- The concentration of the first sulfur-containing additive in the second electrolyte preferably ranges from 0.0001 to 0.05 g/l, more preferably from 0.0002 to 0.025 g/I.
- The second sulfur-containing additive in the second electrolyte is more preferably selected from the group consisting of compounds according to formulae (6) and (7):
- R4SyX-SO3M (6)
- Most preferably, the second sulfur-containing additive is selected from compounds according to formula (6).
- The concentration of the second sulfur-containing additive in the second electrolyte preferably ranges from 0.005 to 1 g/I, more preferably from 0.01 to 0.25 g/l.
- Optionally, the second electrolyte further comprises one or more carrier additive selected from the group consisting of polyvinylalcohol, carboxymethylcellulose, polyethylene glycol, polypropylene glycol, stearic acid polyglycolester, alkoxylated naphtoles, oleic acid polyglycolester, stearylalcoholpolyglycolether, nonylphenolpolyglycolether, octanolpolyalkylenglycolether, octanediol-bis-(polyalkylenglycolether), poly(ethylenglycol-ran-propylenglycol), poly(ethylenglycol)-block-poly(propylenglycol)-block-poly(ethylenglycol) and poly(propylenglycol)-block-poly(ethylenglycol)-block-poly(propylenglycol).
- The concentration of the optional carrier additive in the second electrolyte preferably ranges from 0.005 g/I to 5 g/I, more preferably from 0.01 g/I to 3 g/I.
- During operation, the temperature of the second electrolyte is preferably adjusted to a value in the range of from 20 to 50 °C, most preferably of from 25 to 30°C.
- The current density applied to the substrate during copper deposition from the second aqueous electrolytes preferably ranges from 0.5 to 5 A/dm2, more preferably from 1 to 3 A/dm2.
- The matt level of the copper surface may be tailored by adjusting the thicknesses of the first and second copper layer by simple experimentation. A more matt appearance may be achieved with a thinner second copper layer, whereas a less matt appearance may be achieved with a thicker second copper layer.
- The following examples further illustrate the present invention.
- Substrates:
- Both ABS (acrylnitrile-butadiene-styrol-copolymer) and brass substrates having a complex shape were used throughout all examples.
- The ABS substrates were etched in chromic acid, activated with a palladium containing colloid and metallised by electroless plating of nickel from an acidic hypophosphite-based electrolyte prior to copper deposition.
- The brass substrates were degreased prior to deposition of copper.
- Test methods:
- The matt appearance of copper coatings was tested by visual inspection of the copper plated substrates throughout all examples.
- Copper was deposited on ABS and brass substrates having a complex shape from an aqueous acidic electrolyte comprising 80 g/l CuSO4 - 5H2O, 240 g/I sulfuric acid, and 1 g/I of a mixture of polyglycerin compounds according to formula (1) with n = 2 to 7.
- A homogenous, strongly matt copper surface was obtained which is too matt for decorative applications.
- Copper was deposited on ABS and brass substrates having a complex shape from an aqueous acidic electrolyte comprising 80 g/l CuSO4 · 5H2O, 240 g/I sulfuric acid, and 0.5 mg/l of a first sulfur-containing additive according to formula (5) with m = 3 and R3 = sodium, 80 mg/l of a second sulfur-containing additive according to formula (6) with
- M = sodium and 200 mg/l polyethylene gylcol.
- The copper surface obtained has a homogenous technical gloss which is not desired for decorative applications.
- A first layer of copper was deposited onto ABS and brass substrates having a complex shape from the electrolyte used in example 2. Thereon, a second copper layer was deposited from the electrolyte used in example 1.
- A homogenous, strongly matt copper surface was obtained which is too matt for decorative applications.
- A first copper layer was deposited onto ABS and brass substrates having a complex shape from the electrolyte used in example 1. Next, a second copper layer was deposited thereon from a second electrolyte comprising 80 g/l CuSO4 · 5H2O, 240 g/I sulfuric acid, and 0.5 mg/I of a sulfur-containing additive according to formula (5) with m = 3 and R3 = sodium. The second electrolyte did not contain a second sulfur-containing additive selected from compounds according to formulae (6) and (7).
- The resulting copper surface has a non-homogeneous matt appearance which is not acceptable for decorative applications.
- A first copper layer was deposited onto ABS and brass substrates having a complex shape from the electrolyte used in example 1. Next, a second copper layer was deposited thereon from a second electrolyte comprising 80 g/l CuSO4 · 5H2O, 240 g/I sulfuric acid, and 80 mg/l of a sulfur-containing additive according to formula (6) with
- The copper surface obtained has a matt appearance with burnt areas (shady black appearance) which is not acceptable for decorative applications.
- The first copper layer was deposited onto the ABS and brass substrates from the electrolyte used in Example 1. The second copper layer was deposited thereon from the electrolyte used in Example 2.
- The copper surface obtained has a homogeneous matt appearance which is desired for decorative applications.
- The first copper layer was deposited from a first electrolyte comprising 80 g/l CuSO4 · 5H2O, 240 g/I sulfuric acid, and 1 g/I polyethylene glycol. The second copper layer was deposited thereon from the electrolyte used in Example 2.
- The copper surface obtained has a homogeneous matt appearance which is desired for decorative applications.
Table 1: First and second electrolytes used in Examples 1 to 6. Example 1* Example 2* Example 3* Example 4* Example 5* Example 6 Example 7 First electrolyte Containing mix of polyglycines according to formula (1); No additive with divalent sulfur none Containing additives with divalent sulfur according to formula (5) and (6) Containing mix of polyglycines according to formula (1); No additive with divalent sulfur Containing mix of polyglycines according to formula (1); No additive with divalent sulfur Containing mix of polyglycines according to formula (1); No additive with divalent sulfur Containing polyethylene-glycol; No additive with divalent sulfur Second electrolyte none Containing additives with divalent sulfur according to formula (5) and (6) Containing mix of polyglycines according to formula (1); No additive with divalent sulfur Containing additive with divalent sulfur according to formula (5); No additive acc. to formula (6) Containing additive with divalent sulfur according to formula (6); No additive acc. to formula (5) Containing additives with divalent sulfur according to formula (5) and (6) Containing additives with divalent sulfur according to formula (5) and (6) Optical appearance** - - - - - + + * comparative examples; ** + = good; -: not sufficient
Claims (13)
and
and wherein
R6, R7, R8 and R9 are identical or different and are selected from the group comprising hydrogen, alkyl, acyl, phenyl and benzyl.
X is selected from the group consisting of
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12152390.6A EP2620529B1 (en) | 2012-01-25 | 2012-01-25 | Method for producing matt copper deposits |
PL12152390T PL2620529T3 (en) | 2012-01-25 | 2012-01-25 | Method for producing matt copper deposits |
ES12152390.6T ES2478267T3 (en) | 2012-01-25 | 2012-01-25 | Method to produce matte copper deposits |
CN201280068192.9A CN104080955B (en) | 2012-01-25 | 2012-11-27 | Manufacture the method for matt copper deposition |
JP2014553641A JP6086930B2 (en) | 2012-01-25 | 2012-11-27 | Method for manufacturing matte copper plating |
US14/374,000 US20150014177A1 (en) | 2012-01-25 | 2012-11-27 | Method for producing matt copper deposits |
PCT/EP2012/073688 WO2013110373A2 (en) | 2012-01-25 | 2012-11-27 | Method for producing matt copper deposits |
BR112014018114-4A BR112014018114B1 (en) | 2012-01-25 | 2012-11-27 | METHOD FOR THE PRODUCTION OF MATERIAL COPPER TANKS |
CA2862141A CA2862141C (en) | 2012-01-25 | 2012-11-27 | Method for producing matt copper deposits |
KR1020147022888A KR101979975B1 (en) | 2012-01-25 | 2012-11-27 | Method for producing matt copper deposits |
TW101147026A TWI526582B (en) | 2012-01-25 | 2012-12-12 | Method for producing matt copper deposits |
Applications Claiming Priority (1)
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EP12152390.6A EP2620529B1 (en) | 2012-01-25 | 2012-01-25 | Method for producing matt copper deposits |
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EP2620529A1 true EP2620529A1 (en) | 2013-07-31 |
EP2620529B1 EP2620529B1 (en) | 2014-04-30 |
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EP12152390.6A Active EP2620529B1 (en) | 2012-01-25 | 2012-01-25 | Method for producing matt copper deposits |
Country Status (11)
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US (1) | US20150014177A1 (en) |
EP (1) | EP2620529B1 (en) |
JP (1) | JP6086930B2 (en) |
KR (1) | KR101979975B1 (en) |
CN (1) | CN104080955B (en) |
BR (1) | BR112014018114B1 (en) |
CA (1) | CA2862141C (en) |
ES (1) | ES2478267T3 (en) |
PL (1) | PL2620529T3 (en) |
TW (1) | TWI526582B (en) |
WO (1) | WO2013110373A2 (en) |
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CA3119028A1 (en) | 2018-11-07 | 2020-05-14 | Coventya, Inc. | Satin copper bath and method of depositing a satin copper layer |
US11384446B2 (en) * | 2020-08-28 | 2022-07-12 | Macdermid Enthone Inc. | Compositions and methods for the electrodeposition of nanotwinned copper |
WO2023014524A1 (en) * | 2021-08-05 | 2023-02-09 | Macdermid Enthone Inc. | Compositions and methods for the electrodeposition of nanotwinned copper |
Citations (5)
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JPH08134689A (en) * | 1994-11-04 | 1996-05-28 | Kanehiro Metaraijingu:Kk | Dull plating method and dull plating method corresponding to meter |
US20040020783A1 (en) | 2000-10-19 | 2004-02-05 | Gonzalo Urrutia Desmaison | Copper bath and methods of depositing a matt copper coating |
US20040154926A1 (en) * | 2002-12-24 | 2004-08-12 | Zhi-Wen Sun | Multiple chemistry electrochemical plating method |
US20050045485A1 (en) * | 2003-09-03 | 2005-03-03 | Taiwan Semiconductor Manufacturing Co. Ltd. | Method to improve copper electrochemical deposition |
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DE19540011C2 (en) * | 1995-10-27 | 1998-09-10 | Lpw Chemie Gmbh | Process for the galvanic deposition of glare-free nickel or nickel alloy deposits |
DE19653681C2 (en) * | 1996-12-13 | 2000-04-06 | Atotech Deutschland Gmbh | Process for the electrolytic deposition of copper layers with a uniform layer thickness and good optical and metal-physical properties and application of the process |
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US6679983B2 (en) * | 2000-10-13 | 2004-01-20 | Shipley Company, L.L.C. | Method of electrodepositing copper |
DE10354760A1 (en) * | 2003-11-21 | 2005-06-23 | Enthone Inc., West Haven | Process for depositing nickel and chromium (VI) free metallic matte layers |
EP2143828B1 (en) * | 2008-07-08 | 2016-12-28 | Enthone, Inc. | Electrolyte and method for the deposition of a matt metal layer |
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KR101141923B1 (en) * | 2009-12-28 | 2012-05-07 | 한밭대학교 산학협력단 | Method for fabricating metal layer using by double electroplating and metal layer fabricated by the same |
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2012
- 2012-01-25 PL PL12152390T patent/PL2620529T3/en unknown
- 2012-01-25 ES ES12152390.6T patent/ES2478267T3/en active Active
- 2012-01-25 EP EP12152390.6A patent/EP2620529B1/en active Active
- 2012-11-27 CA CA2862141A patent/CA2862141C/en active Active
- 2012-11-27 US US14/374,000 patent/US20150014177A1/en not_active Abandoned
- 2012-11-27 BR BR112014018114-4A patent/BR112014018114B1/en active IP Right Grant
- 2012-11-27 JP JP2014553641A patent/JP6086930B2/en active Active
- 2012-11-27 KR KR1020147022888A patent/KR101979975B1/en active IP Right Grant
- 2012-11-27 WO PCT/EP2012/073688 patent/WO2013110373A2/en active Application Filing
- 2012-11-27 CN CN201280068192.9A patent/CN104080955B/en active Active
- 2012-12-12 TW TW101147026A patent/TWI526582B/en active
Patent Citations (5)
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US3945894A (en) | 1975-04-11 | 1976-03-23 | Oxy Metal Industries Corporation | Bath composition and method of electrodepositing utilizing the same |
JPH08134689A (en) * | 1994-11-04 | 1996-05-28 | Kanehiro Metaraijingu:Kk | Dull plating method and dull plating method corresponding to meter |
US20040020783A1 (en) | 2000-10-19 | 2004-02-05 | Gonzalo Urrutia Desmaison | Copper bath and methods of depositing a matt copper coating |
US20040154926A1 (en) * | 2002-12-24 | 2004-08-12 | Zhi-Wen Sun | Multiple chemistry electrochemical plating method |
US20050045485A1 (en) * | 2003-09-03 | 2005-03-03 | Taiwan Semiconductor Manufacturing Co. Ltd. | Method to improve copper electrochemical deposition |
Also Published As
Publication number | Publication date |
---|---|
KR20140119123A (en) | 2014-10-08 |
ES2478267T3 (en) | 2014-07-21 |
TW201333274A (en) | 2013-08-16 |
BR112014018114B1 (en) | 2020-09-01 |
WO2013110373A3 (en) | 2014-04-24 |
US20150014177A1 (en) | 2015-01-15 |
CA2862141C (en) | 2020-03-10 |
CN104080955A (en) | 2014-10-01 |
JP2015510038A (en) | 2015-04-02 |
CN104080955B (en) | 2016-03-23 |
WO2013110373A2 (en) | 2013-08-01 |
JP6086930B2 (en) | 2017-03-01 |
TWI526582B (en) | 2016-03-21 |
BR112014018114A8 (en) | 2017-07-11 |
EP2620529B1 (en) | 2014-04-30 |
PL2620529T3 (en) | 2014-09-30 |
KR101979975B1 (en) | 2019-09-03 |
CA2862141A1 (en) | 2013-08-01 |
BR112014018114A2 (en) | 2017-06-20 |
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