Breathable film and method for manufacturing same
US11203190B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Mar 10, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2327/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A breathable film includes a substrate, a membrane disposed on the substrate, and an adhesive interposed between the substrate and the membrane. The membrane includes a plurality of fibers of polyvinylidene fluoride. The breathable film has an air transmission rate equal to or greater than 4000 ml/min/cm2 under air pressure of 70 mbar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.