Multilayer film
US9481809B2 · kind B2 · utility
5Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Dec 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24967
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure is directed to multilayer film having has an L* color less than 30 and a 60 degree gloss value less than 10. The multilayer film has a first polyimide layer and a second polyimide layer. The second polyimide layer has 45 to 67 wt % of a polyimide, greater than 14 wt % of a silica matting agent or a mixture of silica matting agent and at least one additional matting agent, and at least one submicron carbon black, wherein the total amount of the submicron carbon black and the polyimide is less than 85 wt % and greater than 45 wt %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.