Laminated polyester film to be laminated onto metal plate
US5814385A · kind A · utility
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2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminated polyester film comprising an aromatic copolyester layer having a surface roughness of 2 to 13 nm and a polyester layer having a surface roughness (Ra) of at least 15 nm. This laminated polyester film has improved impact resistance particularly at low temperatures and improved taste-retaining property while retaining the excellent moldability, heat resistance, retort sterilization resistance and flavor-retaining property possessed by copolyester films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.