Use of a structure based on poly(dimethylketene) and objects comprising this structure
US6793995B2 · kind B2 · utility
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6References
28Claims
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Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Dec 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31942
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A structure comprising one or more layers of a polymer (A) comprising: the units (A1) and the units (A2) wherein the A2/(A1+A2) molar ratio is between 0 and 30%, is suitable as a barrier against oxygen permeation under high relative humidity. The structure is, thus, useful as packaging and as hollow bodies, such as pipes, bottles and containers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.