Polyester melt blends having high gas barrier properties
US4551368A · kind A · utility
37Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1982 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Sep 7, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1379
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Melt blends of polyethylene isophthalate with polyethylene terephthalate or polybutylene terephthalate or copolymers thereof have good barrier resistant properties to oxygen. Such blends are useful as packaging materials, for example films, containers, bottles, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.