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US 11,596,582 B2Granted
Particles with improved colour shielding
AssigneeIvoclar Vivadent AG
InventorsKai Rist, Annette Schmidt, Ahmad Shaaban
Life of this patent
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Abstract
The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.
Claims14
A polymerizable dental material comprising
- at least one radically polymerizable compound, and
- magnetic particles comprising a magnetic core and a first coating of a first shell material,
- wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, and
- wherein the second shell material is different from the first shell material and has a higher refractive index than the first shell material.
1 more element
Dependencies are inferred from the claim text.