Glass composition and dental composition
AssigneeGC Corporation
InventorsNaoya FUNAYAMA, Takahiro MIYAKE
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Abstract
A glass composition contains cesium (Cs), at least one of potassium (K) or sodium (Na), and silicon (Si), wherein a content of the cesium (Cs) in terms of oxide is 9% by mass or more, wherein when the potassium (K) is contained in the glass composition, a content of the potassium (K) in terms of oxide is 5% by mass or more, wherein when the sodium (Na) is contained in the glass composition, a content of the sodium (Na) in terms of oxide is 1% by mass or more, and wherein the glass composition does not contain barium (Ba) or contains 0.5% by mass or less of barium (Ba) in terms of oxide.
Claims7
A glass composition comprising:
- cesium (Cs);
- at least one of potassium (K) or sodium (Na);
- and
- silicon (Si),
- wherein a content of the cesium (Cs) in terms of oxide is 9% by mass or more,
- wherein when the potassium (K) is contained in the glass composition, a content of the potassium (K) in terms of oxide is 5% by mass or more,
- wherein when the sodium (Na) is contained in the glass composition, a content of the sodium (Na) in terms of oxide is 1% by mass or more, and
- wherein the glass composition does not contain barium (Ba) or contains 0.5% by mass or less of barium (Ba) in terms of oxide.
Dependencies are inferred from the claim text.