发明名称 |
Two-stage reaction for producing cellulose carbamate. |
摘要 |
Production of cellulose carbamate by reacting alkali- or ammonia-treated cellulose with urea in the presence of an inert solvent, comprises adding the urea continuously or in at least two stages during the reaction. |
申请公布号 |
ZA200301168(B) |
申请公布日期 |
2004.05.12 |
申请号 |
ZA20030001168 |
申请日期 |
2003.02.12 |
申请人 |
ZIMMER AKTIENGESELLSCHAFT |
发明人 |
RUDOLF KAEMPF;REINHARD WOLF |
分类号 |
C08B15/06 |
主分类号 |
C08B15/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|