Flame-retardant polyester fiber and its preparation method
US11174346B2 · kind B2 · utility
0Cited by
0References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2016 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jan 26, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2401/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A flame-retardant polyester fiber obtained by spinning flame-retardant polyester and irradiating with ultraviolet light and having a limiting oxygen index value of greater than 30. Flame retardant 2-carboxyethylphenylphosphinic acid to improve the flame retardant properties of polyester, the use of polyester containing unsaturated double bond in UV irradiation, the double bond opens to form a crosslinking point, the formation of a certain amount of the network structure improves the heat-resistant temperature of the poly-fiber and improves the anti-dripping performance of the polyester fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.