Polymerizable oligomeric urethane compositions comprising nanoparticles
US7427438B2 · kind B2 · utility
17Cited by
68References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2007 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Dec 5, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Presently described are microstructured articles such as a brightness enhancing film or optical turning film. The microstructured articles comprise a brightness enhancing polymerized structure comprising the reaction product of a composition comprising an organic component having at least one oligomeric urethane (meth)acrylate and surface modified silica nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.