Hollow porous fibers
US11767615B2 · kind B2 · utility
0Cited by
140References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2021 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Oct 12, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2509/026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hollow fiber that generally extends in a longitudinal direction is provided. The hollow fiber comprises a hollow cavity that extends along at least a portion of the fiber in the longitudinal direction. The cavity is defined by an interior wall that is formed front a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains. A porous network is defined in the composition that includes a plurality of nanopores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.