Packaging biological materials
US6548132B1 · kind B1 · utility
41Cited by
87References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31667
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes comprise a microporous film or other gas-permeable substrate and, coated on the substrate, a layer of a block copolymer having a heat of fusion of at least 5 J/g and containing polysiloxane polymeric blocks and crystalline polymeric blocks having a melting point of −5 to 40° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.