| 发明名称 |
REDUCING THE COLORATION OF AROMATIC DIAMINES |
| 摘要 |
Existing coloration of a liquid ring-polyalkyl-substituted aromatic primary diamine is reduced by blending into such diamine a color-reducing amount of at least one dihydrocarbylhydroxylamine. Preferably, the resultant product is stored in a closed container under an inert atmosphere.
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| 申请公布号 |
CA2327358(A1) |
申请公布日期 |
1999.10.14 |
| 申请号 |
CA19992327358 |
申请日期 |
1999.03.10 |
| 申请人 |
ALBERMARLE CORPORATION |
发明人 |
LAMBETH, GREGORY H.;BROWN, WILLIAM R.;WIGGINS, PAUL L. |
| 分类号 |
C07B61/00;C07C209/68;C07C209/90;C07C211/50;C07C211/51;(IPC1-7):C07C209/90 |
主分类号 |
C07B61/00 |
| 代理机构 |
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代理人 |
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