Articles having a colored metallic coating with special properties
First Claim
1. An article which includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that where the article comprises a substantially planar surface, said coating possesses a visual first color when viewed from a first angle to said surface and it possesses a visual second and different color when viewed at a second angle to said surface:
- said article having been made by a process which includes the step of electrodepositing said coating on a suitable metallic cathode from an electrolyte bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−
+Zn(II))−
containing ions, wherein the parameters ionic concentration, pH, bath temperature current density and current quantity are selected so that a bi-colored coating is obtained, subject to the condition that a current density is applied to said cathode within the range of 0.005 to 0.5 A/dm2.
1 Assignment
0 Petitions
Accused Products
Abstract
An article includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that a planar surface of the coating exhibits a visual first color when viewed from a first angle to the surface and a visual second and different color when viewed at a second angle to the surface. The electrode position is carried out from a bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−+Zn(II))− containing ions, wherein the parameters ionic concentration, pH, bath temperature current density and current quantity are so selected that a bi-colored coating is obtained, provided that a current density is applied to the underplate as cathode within the range of 0.005 to 0.5 A/dm2.
5 Citations
30 Claims
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1. An article which includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that where the article comprises a substantially planar surface, said coating possesses a visual first color when viewed from a first angle to said surface and it possesses a visual second and different color when viewed at a second angle to said surface:
- said article having been made by a process which includes the step of electrodepositing said coating on a suitable metallic cathode from an electrolyte bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−
+Zn(II))−
containing ions, wherein the parameters ionic concentration, pH, bath temperature current density and current quantity are selected so that a bi-colored coating is obtained, subject to the condition that a current density is applied to said cathode within the range of 0.005 to 0.5 A/dm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- said article having been made by a process which includes the step of electrodepositing said coating on a suitable metallic cathode from an electrolyte bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−
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15. A process for manufacturing an article which includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that where the article comprises a substantially planar surface, said coating possesses a visual first color when viewed from a first angle to said surface and it possesses a visual second and different color when viewed at a second angle to said surface;
- which process includes the step of electrodepositing said coating on a suitable metallic cathode from an electrolyte bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−
+Zn(II))−
containing ions, wherein the parameters ionic concentration, pH, bath temperature current density and current quantity are selected so that a bi-colored coating is obtained, subject to the condition that a current density is applied to said cathode within the range of 0.005 to 0.5 A/dm2. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- which process includes the step of electrodepositing said coating on a suitable metallic cathode from an electrolyte bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−
Specification