Phosphonamidates-synthesis and flame retardant applications
US9650497B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 6, 2012 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | May 28, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A group of novel compounds containing one or more amino substituted DOPO (9,10-dihydro-9-oxa-phosphaphenthren-10-oxide) moieties. The compounds were found to have good flame retardant properties and also good thermal stability, which makes them particularly suitable as flame retardant additives for various thermoplastic polymers. In particular, they can be incorporated in a polyurethane foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.