Acrylic films prepared by coating methods
US7048823B2 · kind B2 · utility
8Cited by
50References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2002 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of film fabrication is taught that uses a coating and drying apparatus to fabricate resin films suitable for optical applications. In particular, acrylic films are prepared by simultaneous application of multiple liquid layers to a moving carrier substrate. After solvent removal, the acrylic films are peeled from the sacrificial carrier substrate. Acrylic films prepared by the current invention exhibit good clarity and low birefringence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.