Chalcogenide glass material
US-2020148575-A1 · May 14, 2020 · US
Glass production method
US12459850B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12459850-B2 |
| Application number | US-202118035799-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 10, 2021 |
| Priority date | Nov 18, 2020 |
| Publication date | Nov 4, 2025 |
| Grant date | Nov 4, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Provided is a glass production method with which oxidation can be easily prevented and productivity can be increased. The glass production method includes a step of allowing a melt ( 11 ), which is obtained by melting a glass raw material, to flow into a mold ( 13 ) and a step of cooling the melt ( 11 ) to yield a glass ( 18 ). A partition member ( 16 ) is disposed in the mold ( 13 ), forming an inflow portion ( 17 ) surrounded by the mold ( 13 ) and the partition member ( 16 ). In the step of allowing the melt ( 11 ) to flow into the mold ( 13 ), the melt ( 11 ) flows into the inflow portion ( 17 ) while the mold ( 13 ) is moved relative to the partition member ( 16 ) to increase the capacity of the inflow portion ( 17 ).
First claim
Opening claim text (preview).
The invention claimed is: 1 . A glass production method comprising: a step of allowing a melt, which is obtained by melting a glass raw material, to flow into a mold; and a step of cooling the melt to yield a glass, wherein the glass is a chalcogenide glass, a partition member is disposed in the mold, forming an inflow portion surrounded by the mold and the partition member, the step of allowing the melt to flow into the mold is performed in an air atmosphere, and in the step of allowing the melt to flow into the mold, and while a heterogeneous layer is allowed to form on a liquid surface of the melt flowing into the inflow portion and the mold is moved relative to the partition member to increase the capacity of the inflow portion, the melt flows between a bottom portion of the inflow portion and the heterogeneous layer. 2 . The glass production method according to claim 1 , wherein a thickness of the melt is kept constant when the mold is moved relative to the partition member in the step of allowing the melt to flow into the mold. 3 . The glass production method according to claim 1 , wherein only the mold is moved in the step of allowing the melt to flow into the mold.
Assignees
Inventors
Classifications
Chalcogenide glasses, i.e. S, Se or Te glasses · CPC title
Improving the yield, e-g- reduction of reject rates · CPC title
Chalcohalide glasses, i.e. containing one or more of S, Se, Te and one or more of F, Cl, Br, I · CPC title
electric · CPC title
by induction heating · CPC title
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- What does patent US12459850B2 cover?
- Provided is a glass production method with which oxidation can be easily prevented and productivity can be increased. The glass production method includes a step of allowing a melt ( 11 ), which is obtained by melting a glass raw material, to flow into a mold ( 13 ) and a step of cooling the melt ( 11 ) to yield a glass ( 18 ). A partition member ( 16 ) is disposed in the mold ( 13 ), forming a…
- Who is the assignee on this patent?
- Nippon Electric Glass Co
- What technology area does this patent fall under?
- Primary CPC classification C03B19/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).