Laminated structures of polyethylene terephthalate and elastomeric copolyesterethers
US4636442A · kind A · utility
46Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Oct 11, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is multi-layered sheet material comprising a layer of polyethylene terephthalate and a layer of an elastomeric copolyesterether. This sheet material is useful in packaging applications where resistance to flex cracking is important.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.