Aramid copolymer yarn having low residual sulfur
US11279800B2 · kind B2 · utility
0Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Jan 11, 2012 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jan 11, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/805
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention concerns yarn comprising polymer, the polymer comprising imidazole groups, the yarn having a sulfur content of 0.01 to 3.0 percent by weight, based on weight of the yarn, the yarn having a tenacity of 30 cN/dtex (33.3 gpd) or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.