| 发明名称 |
A decabromodiphenylethane predominated product having enhanced whiteness. |
| 摘要 |
<p>A decabromodiphenylethane-predominant product having a Y.I. in the range of 5 to <11 is obtained by reacting diphenylethane with bromine at a rate such as to minimize color-causing side reactions. In a preferred embodiment of the invention, the diphenylethane is fed below the liquid level of bromine in a reaction vessel through a narrow-diameter dip tube at a rate of 50-800, most preferably 250-600 cm/second.</p> |
| 申请公布号 |
EP0571859(A2) |
申请公布日期 |
1993.12.01 |
| 申请号 |
EP19930108008 |
申请日期 |
1993.05.17 |
| 申请人 |
ETHYL CORPORATION |
发明人 |
HUSSAIN, SAADAT;MCKINNIE, BONNIE GARY;RANSFORD, GEORGE HENRY;PARKS, JOHN C.;DEVROU, PHILLIP R. |
| 分类号 |
C07C17/12;C07C25/18;C09K21/08;C07B61/00;(IPC1-7):C07C25/18;C07C17/02 |
主分类号 |
C07C17/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
