Flame retardant polyamide composition
US11981812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2022 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Jul 20, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyamide composition comprising a polyamide; a plurality of inorganic fibers; and a flame retardant system comprising a zinc phosphinate and a nitrogen-containing polyphosphate is provided. At thicknesses of from about 0.4 to about 3.2 millimeters, the composition exhibits a Glow Wire Ignition Temperature of about 775° C. or more as determined in accordance with IEC-60695-2-13:2010; a Glow Wire End Product Temperature (without flame) of about 750° C. or more as determined in accordance with IEC-60335-1:2010; a Glow Wire Flammability Index of about 850° C. or more as determined in accordance with IEC-60695-2-12:2010; a V0 rating as determined in accordance with UL94; and/or a comparative tracking index of about 550 volts or more as determined in accordance with IEC 60112:2003.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.