Flame retardant polymer compositions
US4725638A · kind A · utility
3Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Sep 12, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to flame retardant polymer compositions comprising a flammable polymer and an amount of between 1% to 40% by weight of tetrabromodipentaerythritol as flame retardant agent. Optionally, synergistic flame retardant additives such as antimony oxide are incorporated in the compositions. The flammable polymers are selected from polyolefins, polyamides and styrenic resins or mixtues thereof. The flame retardant agent according to the present invention imparts to the polymer compositions improved thermal aging behaviour, thermal stability and non blooming property, compared with known flame retardant agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.