Color shifting film articles
US6797366B2 · kind B2 · utility
56Cited by
103References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.