Modified copolyesters and optical films including modified copolyesters
US7345137B2 · kind B2 · utility
18Cited by
24References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Dec 7, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Modified copolyesters having relatively low refractive indices and relatively high glass transition temperatures are disclosed. These modified copolyesters can be used in forming one or more layers in an optical film, such as a multilayer polymer film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.