Light diffusing films, methods of making the same, and articles using the same
US7297381B2 · kind B2 · utility
4Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2006 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | May 8, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are light diffusing films, methods of making the same and articles using the same. In one embodiment, a light diffusing film is formed from a composition comprising: a polycarbonate, phosphite stabilizer, epoxy stabilizer, hindered phenol stabilizer, and light diffusing particles having a refractive index of about 1.3 to about 1.7. The film comprises a hiding power of 0 to about 0.5. In one embodiment, a method for producing a film comprises combining a polycarbonate, a phosphite stabilizer, an epoxy stabilizer, and light diffusing particles to form a combination, and forming the combination into the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.