Monolithic composition having the capability of maintaining constant relative humidity in a package
US6613405B1 · kind B1 · utility
28Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Mar 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention generally related to a monolithic composition comprising a water insoluble polymer and a deliquescent material. A deliquescent material is blended into the polymer so that the deliquescent material is distributed within the product. The deliquescent material blended in the water-insoluble polymer is capable of maintaining a substantially constant relative humidity in a closed container. The product may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.