| 发明名称 |
PURIFICATION OF N, NS-UDI-2-NAPHTYL-P-PHENYLENEDIAMINE USING A MIXED SOLVENT SYSTEM |
| 摘要 |
<p>Dark colored impurities, 2-aminonaphthalene and 2-naphthol are extracted from crude N,N'-di-2-naphthyl-p-phenylenediamine by contacting with a mixed solvent system comprising (A) at least one compound selected from the group consisting of alkanols and alkanediols and (B) at least one alkylated benzene.</p> |
| 申请公布号 |
CA1029747(A) |
申请公布日期 |
1978.04.18 |
| 申请号 |
CA19750221600 |
申请日期 |
1975.03.07 |
| 申请人 |
B.F. GOODRICH COMPANY (THE) |
发明人 |
KLETECKA, GEORGE;FORRY, MARK E. |
| 分类号 |
C07C |
主分类号 |
C07C |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
