Multilayer film
US9469781B2 · kind B2 · utility
2Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Dec 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24967
- WIPO fieldMacromolecular chemistry, polymers
- 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 25 to 50 wt % of a polyimide, greater than 0 and less than 20 wt % of a silica matting agent, greater than 0 and less than 20 wt % of at least one submicron carbon black and 15 to 50 wt % of at least one submicron fumed metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.