Packaging material for blood bag and blood bag packaging
US8968879B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A packaging material for blood bags includes two laminate films (I), wherein each laminate film (I) includes a base layer (Y), an inorganic deposited layer (X) formed on top of the base layer, a layer (Z1) containing a polymer of an unsaturated carboxylic acid compound polyvalent metal salt formed on top of the inorganic deposited layer (X), and a layer (Z2) containing a polymer of an unsaturated carboxylic acid compound polyvalent metal salt and a vinyl alcohol based polymer formed on top of the layer (Z1), laminating the two laminate films (I) with the layers (Z2) being laminated to form a laminate film (II), and laminating a heat seal layer on top of at least either one of the base layers (Y) of the laminate film (II). The packaging material can exhibit relatively high water vapor permeation resistance and excellent transparency and stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.