Protective film
US10967616B2 · kind B2 · utility
0Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2013 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A protective film has a soluble polyimide polymer base layer and an exterior layer directly containing the base layer exterior surface. The base layer is less than 12 microns thick, and is at least 2 meters long. The exterior layer includes at least one of a fluorinated polymer, a dielectric layer, one or more metallic layers, a metalloid layer, or a plurality of dielectric layers where each dielectric layer has a dielectric layer thickness that varies no more than 3%. The exterior layer or the as layer can also include additives, as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.