Laminates comprising coextruded liquid crystal polymer films and discardable thermoplastic outside layers
US5744204A · kind A · utility
6Cited by
0References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Dec 5, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention discloses laminates comprising a liquid crystal polymer film inside and non-adherent, non-liquid crystalline polymer film on the outside, prepared by a process of coextrusion. Delamination of the outside layers yields a liquid crystal polymer film of superior surface quality. The invention is particularly suitable for preparing liquid crystal polymer-based polarizers with improved surface quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.