Heat-shrinkable polyester film
US7018689B2 · kind B2 · utility
5Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2002 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Nov 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A heat-shrinkable polyester film comprising a polyester base film and a coat layer formed on one or both sides of the polyester base film, said coat layer comprising a copolymerised polyester having carboxyl group terminals and Tg in the range of 70 to 80;É, exhibits superior properties suitable for labeling or shrink-wrapping containers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.