Flame retardant polymer compositions comprising heat treated phosphorus compounds and melam
US9752009B2 · kind B2 · utility
6Cited by
10References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jun 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flame retardant polymer compositions with excellent processing stability and flame retardant activity are obtained by incorporating into the polymer a flame retardant obtained by heating certain phosphonic acid salts at temperatures of 200° C. or higher and as flame retardant synergist melam or a melam derivative, which compositions are more readily processed under certain harsh conditions than similar compositions comprising similar synergists such as melem, melon and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.