Coating composition for adhering metallized layers to polymeric films
US7427435B2 · kind B2 · utility
4Cited by
26References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2006 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metallized film and a process for making the film are disclosed. In general, the metallized film includes a polymeric film layer that is coated with a polyester coating composition. A metal layer is then formed on top of the polyester coating. The polyester coating acts as a tie layer between the metal layer and the underlying film. The polyester film composition may be formed from, in one embodiment, isophthalic acid, a sulfomonomer, and 2-methyl 1,3-propane diol. The above diol has been found to improve adhesion between the metal layer and the polymeric film layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.