Thin protective display film
US11440302B2 · kind B2 · utility
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13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Sep 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A display film includes a transparent polymeric substrate layer having a 0.2% offset yield stress greater than 110 MPa and a transparent aliphatic cross-linked polyurethane layer having a thickness of 100 micrometers or less disposed on the transparent polymeric substrate layer. The transparent aliphatic cross-linked polyurethane layer has a glass transition temperature in a range from 11 to 27 degrees Celsius and a Tan Delta peak value in a range from 0.5 to 2.5. The display film has a haze value of 2% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.