Non-oriented, heat-sealing polyester film
US5484632A · kind A · utility
35Cited by
16References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1993 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Oct 7, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Monolayer and multilayer non-oriented polyester films comprising of at least one layer of an amorphous heat-sealing polyester wherein the heat-sealing polyester consisting essentially of terephthalic acid, ethylene glycol, and about 7-15 mol % cyclohexanedimethanol. The heat-sealing polyester has a heat of fusion greater than 0.5 cal/g and is sufficiently crystallizable to allow the drying of mixtures of the heat-sealing polyesters with other crystallizable polyesters without sticking. Multilayered films also contain a layer of an amorphous crystallizable polyethylene terephthalate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.