Biaxially oriented polyester film
US7364786B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2003 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Feb 20, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The biaxially oriented polyester film of the present invention contains a polyester having a primary melting point of 245 to 265° C. as the main component and exhibits a drop bag strength index at 0° C. of at least 2.0 and a strength at break in the film longitudinal direction at 120° C. of at least 100 MPa. The film has superior heat resistance, mechanical strength, impact resistance, and bending resistance and is particularly suitable for packaging materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.