Spunbond polycarbonate resin filter media
US10744435B2 · kind B2 · utility
0Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2015 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2505/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns spunbond nonwoven fabrics comprising a plurality of bicomponent filaments, the bicomponent filaments having a segmented pie cross-sectional configuration including a polycarbonate component and a polypropylene component, wherein a ratio of the polypropylene component to the polycarbonate component is between about 5:95 and about 95:5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.