Glass roll, device for producing glass roll, and process for producing glass roll
US9931816B2 · kind B2 · utility
5Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Apr 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A glass roll reliably prevents a glass film from breaking from an end surface of the glass film as an origin of breakage. The glass roll is formed by winding the glass film into a roll while superposing the glass film on a protective sheet. The glass film is formed by an overflow downdraw method to have a thickness of 1 μm or more and 200 μm or less, and has each end surface in a width direction formed as a cut surface cut by laser splitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.