Flame-retardant composition
US3950456A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1975 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Jul 25, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A normally flammable organic polymer is rendered flame retardant by the incorporation of a compound corresponding to the formula: ##SPC1## Wherein X is chloro or bromo, Q is halo, hydrogen, or a hydrocarbyl or hydrocarbyloxy group, and Z is a divalent saturated polybromocycloalkylene group containing 5-16 carbon atoms and 2-6 bromine atoms. Such flame retardants include, e.g., 5,6-dibromo-1,10,11,12,13,13-hexachlorotricyclo[8.2.1.0.sup.2,9 ]tridecene-11, i.e., the dibrominated 1:1 Diels-Alder adduct of hexachlorocyclopentadiene and cyclooctadiene-1,5. If desired, the flame retardant may be employed in conjunction with a synergist, such as antimony trioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.