Method for producing glass sheet and glass sheet
US-2016318794-A1 · Nov 3, 2016 · US
Method for producing glass sheet and glass sheet
US10093571B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10093571-B2 |
| Application number | US-201414783749-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 9, 2014 |
| Priority date | Apr 9, 2013 |
| Publication date | Oct 9, 2018 |
| Grant date | Oct 9, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method of the present invention for producing glass sheets includes the steps of: (I) forming a molten glass raw material into a glass ribbon on a molten metal; and (II) bringing an acid gas that contains a fluorine element (F)-containing acid and in which a volume ratio of water vapor to the acid (a volume of the water vapor/a volume of the acid) is 0 or more and 30 or less, into contact with a surface of the glass ribbon on the molten metal so as to subject the surface of the glass ribbon to dealkalization and control a morphology of the surface in accordance with the volume ratio.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing glass sheets, comprising steps of: (I) forming a molten glass raw material into a glass ribbon on a molten metal; and (II) bringing an acid gas, in which a volume ratio of water vapor to an acid (a volume of the water vapor/a volume of the acid) is 12.5 or more and 30 or less, into contact with a surface of the glass ribbon on the molten metal at a temperature of 580° C. or more so as to subject the surface of the glass ribbon to dealkalization and control a morphology of the surface in accordance with the volume ratio, wherein the acid is a fluorine element (F)-containing acid. 2. The method for producing glass sheets according to claim 1 , further comprising a step of (III) recovering the acid gas after the step (II).
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Classifications
Glass having a rough surface · CPC title
Surface treatment of glass, not in the form of fibres or filaments, by etching (etching or surface-brightening compositions, in general C09K13/00) · CPC title
- C03B18/20Primary
Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath · CPC title
- C03C3/087Primary
containing calcium oxide, e.g. common sheet or container glass · CPC title
comprising a lixiviation step · CPC title
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- What does patent US10093571B2 cover?
- A method of the present invention for producing glass sheets includes the steps of: (I) forming a molten glass raw material into a glass ribbon on a molten metal; and (II) bringing an acid gas that contains a fluorine element (F)-containing acid and in which a volume ratio of water vapor to the acid (a volume of the water vapor/a volume of the acid) is 0 or more and 30 or less, into contact wit…
- Who is the assignee on this patent?
- Nippon Sheet Glass Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C03B18/20. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 09 2018 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).