US4065626A — Gold-appearing films of copper, nickel and copper…

Claim 1

Independent Claim 188 words

In a method of making a coated article comprising the steps of: preparing a surface of a substrate to be coated and depositing a copper film onto the prepared surface of the substrate by contacting it with a copper plating solution comprising a copper salt and a reducing agent, the improvement which comprises a. adding to said copper plating solution an amount of a triazole sufficient to render the film brown in appearance; b. depositing a nickel film onto the brown copper film by contacting it with a nickel plating solution comprising a nickel salt and a reducing agent; c. depositing a copper film onto the nickel film by contacting it with a copper plating solution comprising a copper salt and a reducing agent; d. contacting the copper film which has been deposited onto the nickel film with a surfactant which is capable of rendering the surface hydrophobic upon drying; and e. heating the substrate and its three films to a temperature of at least about 300° F. (150° C.) in an oxidizing environment for a sufficient time to oxidize the copper film deposited onto the nickel film.

Claim 2

Dependent Claim 188 words

In a method of making a coated article comprising the steps of: preparing a surface of a substrate to be coated and depositing a copper film onto the prepared surface of the substrate by contacting it with a copper plating solution comprising a copper salt and a reducing agent, the improvement which comprises a. adding to said copper plating solution an amount of a triazole sufficient to render the film brown in appearance; b. depositing a nickel film onto the brown copper film by contacting it with a nickel plating solution comprising a nickel salt and a reducing agent; c. depositing a copper film onto the nickel film by contacting it with a copper plating solution comprising a copper salt and a reducing agent; d. contacting the copper film which has been deposited onto the nickel film with a surfactant which is capable of rendering the surface hydrophobic upon drying; and e. heating the substrate and its three films to a temperature of at least about 300° F. (150° C.) in an oxidizing environment for a sufficient time to oxidize the copper film deposited onto the nickel film.

Claim 3

Dependent Claim 12 words

The method according to claim 1 wherein said triazole is 3-amino-1,2,4 triazole.

Claim 4

Dependent Claim 109 words

The method according to claim 1 wherein the substrate is glass and wherein the first copper deposition is carried on until the luminous transmittance of the article based upon a clear substrate is from 35 to 45 percent, the nickel deposition is carried on until the luminous transmittance of the article based upon a clear substrate is from 20 to 30 percent, the second copper deposition is carried on until the luminous transmittance of the article based upon a clear substrate is from 2 to 8 percent and following the oxidation step the luminous transmittance of the article based upon a clear substrate is from 12 to 22 percent.

Claim 5

Dependent Claim 26 words

The method according to claim 1 wherein the nickel film is activated by contact with a noble metal composition prior to the second copper deposition step.

Claim 6

Dependent Claim 51 words

An article of manufacture comprising a glass substrate coated with three layers of film, a brown copper layer affixed to the glass, a nickel layer affixed to the brown copper layer and a copper oxide layer affixed to the nickel layer, said article prepared according to the method of claim 1.

Claim 7

Dependent Claim 39 words

A transparent article of manufacture for the selective reflection of radiation over an extended spectral range comprising in combination: a. a clear glass substrate b. at least three coating layers affixed to a surface of said clear glass substrate:

Claim 8

Dependent Claim 39 words

A transparent article of manufacture for the selective reflection of radiation over an extended spectral range comprising in combination: a. a clear glass substrate b. at least three coating layers affixed to a surface of said clear glass substrate:

Claim 9

Dependent Claim 123 words

a brown copper layer consisting essentially of copper deposited onto the glass in the presence of a triazole; 2. a copper oxide layer made by depositing copper and then oxidizing it; and 3. a nickel layer sandwiched between the brown copper layer and the copper oxide layer wherein the layers have respective thicknesses sufficient to provide the article with a luminous transmittance of from 12 to 22 percent a transmittance dominant wavelength of from 575 to 580 nanometers, a transmittance excitation purity of from 44 to 54 percent, and, from the glass side, a luminous reflectance of from 35 to 55 percent, a reflective dominant wavelength of from 570 to 585 nanometers and a reflective excitation purity of from 12 to 35 percent.

Claim 10

Dependent Claim 123 words

a brown copper layer consisting essentially of copper deposited onto the glass in the presence of a triazole; 2. a copper oxide layer made by depositing copper and then oxidizing it; and 3. a nickel layer sandwiched between the brown copper layer and the copper oxide layer wherein the layers have respective thicknesses sufficient to provide the article with a luminous transmittance of from 12 to 22 percent a transmittance dominant wavelength of from 575 to 580 nanometers, a transmittance excitation purity of from 44 to 54 percent, and, from the glass side, a luminous reflectance of from 35 to 55 percent, a reflective dominant wavelength of from 570 to 585 nanometers and a reflective excitation purity of from 12 to 35 percent.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-12-26	1981-06-27	1981-12-27	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-12-26	1985-06-27	1985-12-27	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-12-26	1989-06-27	1989-12-27	$7700.00	Window Closed / Lapsed

Gold-appearing films of copper, nickel and copper oxide layers

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