Use of poly(dimethyl ketone) to manufacture articles in direct contact with a humid or aqueous medium
US7011873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2003 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Mar 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31942
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to the use of a structure for manufacturing hermetical industrial or food packaging in direct contact with a humid or aqueous medium, the structure comprising at least one layer of polydimethyl ketone in direct contact with the most humid medium, (i) the latter being situated within the packaging when the packaging accommodates water or an aqueous or humid product and (ii) the most humid medium being situated outside the packaging when the packaging accommodates a product which is dry or which is to be protected from humidity. The food packaging comprises, for example, trays, sachets, bottles and flasks and the industrial packaging comprises, for example, pipes, containers and drums.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.