发明名称 |
BROMINATED STYRENIC POLYMERS AND THEIR PREPARATION |
摘要 |
Preparing brominated styrenic polymer by maintaining a mixture formed from (i) brominating agent, (ii) a solvent solution of styrenic polymer, and (iii) aluminum halide catalyst, at -20 to +20° C., and terminating bromination in 20 minutes or less. New brominated anionic styrenic polymers have better melt flow and/or lower initial DeltaE values than the best previously-known brominated anionic styrenic polymers. Other features of such new polymers include high thermal stabilities at 320° C. and/or very low initial color values. Brominated styrenic polymers, especially brominated anionic styrenic polymers, are useful as flame retardants for thermoplastic polymers. |
申请公布号 |
EP1896512(B1) |
申请公布日期 |
2016.10.26 |
申请号 |
EP20060773289 |
申请日期 |
2006.06.14 |
申请人 |
ALBEMARLE CORPORATION |
发明人 |
KOLICH, CHARLES, H.;APLIN, JEFFREY, TODD;BALHOFF, JOHN, F. |
分类号 |
C08F8/20 |
主分类号 |
C08F8/20 |
代理机构 |
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代理人 |
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