发明名称 |
MEMBRANE PURIFICATION OF SOLUTIONS/SUSPENSIONS OF POLYPHOSPHAZENES |
摘要 |
Impure solutions or suspensions of the polyphosphazenes, e.g., those containing the reagents and/or byproducts of the chloro-substitution of a polydichlorophosphazene, are purified by contacting such impure solutions/suspension with a semipermeable membrane having a cutoff threshold corresponding to the impurities sought to be removed, and filtering such impurities therethrough, e.g., by establishing a trans-membrane pressure gradient.
|
申请公布号 |
US5098574(A) |
申请公布日期 |
1992.03.24 |
申请号 |
US19910654694 |
申请日期 |
1991.02.13 |
申请人 |
ATOCHEM |
发明人 |
CHAMBRETTE, JEAN-PAUL;MORIN, DANIEL;OROZCO, JOSE L.;POTIN, PHILIPPE |
分类号 |
B01D61/14;B01D69/12;B01D71/02;B01D71/72;C08G79/02 |
主分类号 |
B01D61/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|