| 发明名称 |
PROCESS FOR THE PREPARATION OF POLYASPARTIC ACID |
| 摘要 |
Polyaspartic acid is prepared by converting maleic anhydride with ammonia in such a manner that a specific composition of Aspartic acid, Iminodisuccinic acid, Malic acid and Fumaric acid results, this composition is further reacted under dehydration condensation conditions to polysuccinimide and finally the polysuccinimide is hydrolysed to polyaspartic acid.
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| 申请公布号 |
WO9804615(A1) |
申请公布日期 |
1998.02.05 |
| 申请号 |
WO1997EP03408 |
申请日期 |
1997.06.30 |
| 申请人 |
LONZA S.P.A.;CARAMASCHI, GIUSEPPE;PIROLA, ROBERTO;SANCHIONI, SERGIO |
发明人 |
CARAMASCHI, GIUSEPPE;PIROLA, ROBERTO;SANCHIONI, SERGIO |
| 分类号 |
C08G73/10;(IPC1-7):C08G73/10;C08G69/10 |
主分类号 |
C08G73/10 |
| 代理机构 |
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