Multilayer container for enhanced gas barrier properties
US8124202B2 · kind B2 · utility
2Cited by
36References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2007 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Apr 21, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multilayer container having enhanced gas barrier properties comprises at least two outer layers comprising a polymer matrix, and at least one barrier layer disposed between the at least two outer layers. The at least one barrier layer comprises a first polymer composition comprising a polymer matrix and a low molecular weight additive. In a particular embodiment, the low molecular weight additive comprises a purine derivative, such as caffeine, and is present in the multilayer container in an amount in the range of about 0.2 to about 10 weight percent of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.