Flame-retarded polyamide composition
US11008460B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 24, 2017 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Oct 24, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided herein a flame retarded polyamide composition comprising: (a) at least one polyamide; (b) a hydroquinone bisdiphenyl phosphate ester of the general formula (I): wherein R1, R2, R3 and R4 each independently is aryl, or arylalkyl each independently containing up to about 30 carbon atoms, optionally interrupted with heteroatoms, X is a divalent hydroquinone group, containing up to about 20 carbon atoms, and n has an average value of from about 1.0 to about 2.0; and, (c) at least one brominated flame retardant and optionally, melamine polyphosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.