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US 2026/0286470 A1Published application
Platinum alloy
AssigneeArgor-Heraeus SA
InventorsSergio ARNABOLDI, Marco NAUER, Marta ROSSINI, Federico GALEOTTI
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Abstract
The present disclosure concerns a Platinum alloy for jewelry applications, comprising: —Platinum, between 920‰ by weight and 980‰ by weight; —Tin, between 5‰ by weight and 35‰ by weight; —Ruthenium, between 8‰ by weight and 45‰ by weight or Copper, between 2‰ by weight and 45‰ by weight.
Claims21
A platinum alloy suitable for use in jewelry applications, comprising:
- a) platinum, in an amount between 920‰ by weight and 980‰ by weight;
- b) tin, in an amount between 5‰ by weight and 35‰ by weight;
- and
- c) at least one element selected from the group consisting of ruthenium, present in an amount between 8‰ by weight and 45‰ by weight copper, present in an amount between 2‰ by weight and 45‰ by weight.
1 more element
(canceled)
A platinum alloy consisting of
- platinum, between 920‰ by weight and 980‰ by weight;
- tin, between 5‰ by weight and 35‰ by weight;
- at least one element selected from the group consisting of ruthenium, between 8‰ by weight and 45‰ by weight, and copper, between 2‰ by weight and 45‰ by weight;
- at least one additive family selected from the group consisting of:
- (i) at least one of tantalum, between 2‰ by weight and 30‰ by weight, and niobium, between 2‰ by weight and 20‰ by weight;
- (ii) at least one of chromium, between 2‰ by weight and 18‰ by weight, and molybdenum, between 2‰ by weight and 18‰ by weight;
- and
- (iii) at least one of gallium, between 5‰ by weight and 23‰ by weight, gold, between 2‰ by weight and 14‰ by weight, and palladium, between 2‰ by weight and 18‰ by weight;
- and
- inevitable impurities;
- wherein the recited constituents together constitute 1000‰ by weight of the alloy.
8 more elements
Dependencies are inferred from the claim text.