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US 12,202,773 B2Granted
Colored composite material
AssigneeHUBLOT SA, Geneve
InventorsMathias Buttet, Luca Bianco, Sébastien Recalcati
Life of this patent
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Abstract
A solid composite material combining: an inorganic pigment in the form of discrete particles each comprising a colored core and a coating adapted to allow light to pass through and a matrix based on metalloid or metal oxide, said matrix being adapted to allow light to pass through.
Claims2
A solid composite material comprising:
- an inorganic pigment in the form of discrete particles each comprising a colored core and a coating surrounding the core, said coating being adapted to allow light to pass through;
- and
- a matrix based on metalloid or metal oxide, said matrix being adapted to allow light to pass through, said matrix containing said discrete particles, said matrix being a sintered material selected from the group consisting of ceramic and glass,
- wherein the coating of the discrete particles is adapted to prevent interactions between the colored cores during sintering,
- wherein the inorganic pigment comprises a mixture of particles including a first type of particles each having a core of a first color and a second type of particles each having a core of a second color,
- and wherein the core of at least one particle of the inorganic pigment is based on cobalt aluminate CoAl2O4;
- wherein the particles of inorganic pigment have an average diameter comprised between 1.0 μm and 15 μm.
4 more elements
A solid composite material comprising:
- an inorganic pigment in the form of discrete particles each comprising a colored core and a coating surrounding the core, said coating being adapted to allow light to pass through;
- and
- a matrix based on metalloid or metal oxide, said matrix being adapted to allow light to pass through, said matrix containing said discrete particles, said matrix being a sintered material selected from the group consisting of ceramic and glass,
- wherein the coating of the discrete particles is adapted to prevent interactions between the colored cores during sintering,
- wherein the inorganic pigment comprises a mixture of particles including a first type of particles each having a core of a first color and a second type of particles each having a core of a second color,
- and wherein the core of at least one particle of the inorganic pigment is an oxide comprising at least one element selected from the group consisting of:
- iron, chromium, aluminum, titanium, silicon, zinc, nickel, cobalt, cadmium, copper, vanadium, bismuth, niobium, and manganese;
- wherein the particles of inorganic pigment have an average diameter comprised between 1.0 μm and 15 μm.
5 more elements
Dependencies are inferred from the claim text.