Multi-layer polymeric protective sheets useful for three-dimensional display surfaces
US11040474B2 · kind B2 · utility
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1References
40Claims
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Assignee
Inventor
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Jan 24, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Multi-layer protective sheets of the invention are both rigid enough to provide desired protective properties, but flexible enough to be formable into a desired non-planar shape in order to protect surfaces such as optical display surfaces of electronic devices. Once formed into the desired non-planar shape, a modified interlayer of the multi-layer protective sheet has a shear storage modulus of greater than about 100 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.