Devices for stretching polymer films
US7316558B2 · kind B2 · utility
35Cited by
38References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2006 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Aug 4, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/041
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses can include adjustable or zone-defined stretching regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.