Phosphonate polymers, copolymers, and their respective oligomers as flame retardants for polyester fibers
US9290653B2 · kind B2 · utility
1Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2011 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Apr 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/696
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to the use of polyphosphonates, copoly(phosphonate ester)s, copoly(phosphonate carbonate)s, and their respective oligomers, as flame retardant additives for polyester fibers to impart fire resistance while maintaining or improving processing characteristics for melt spinning fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.