Polyester film
US8202612B2 · kind B2 · utility
6Cited by
13References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2007 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heat-sealable, peelable, coextruded composite polymeric film comprising a substrate layer of polymeric material having on a surface thereof a heat-sealable layer, wherein said heat-sealable layer comprises a copolyester of least one aromatic dicarboxylic acid, at least one aliphatic dicarboxylic acid and one or more glycol(s); the thickness of said heat-sealable layer is in the range of from about 0.3 to about 3 μm; and the heat-sealable layer comprises one or more wax(es) is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.