Cross-linked enhanced meta-aramid and preparation method therefor
US12404627B2 · kind B2 · utility
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Key dates
| Filing date | Feb 25, 2022 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Dec 6, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2101/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides a cross-linking enhanced meta-aramid and a preparation method therefor. In the method, an isocyanate is used as a cross-linking agent, treatment is performed for a period of time at a certain temperature after a catalyst is added, and then water washing, drying, and heat setting are performed to prepare a high-strength meta-aramid. With the present disclosure, a cross-linked meta-aramid is prepared and has an improved binding force between fibers and has excellent mechanical properties and high temperature resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.