| 发明名称 |
MICROPOROUS POLYESTER MEMBRANES AND POLYMER ASSISTED PHASE INVERSION PROCESS FOR MAKING SAME |
| 摘要 |
<p>1425319 Membrane casting solutions CHEMICAL SYSTEMS Inc 18 Dec 1972 [16 Dec 1971] 32007/75 Divided out of 1425318 Heading C3R and C3P Membrane casting solutions comprise a polyester of a dibasic aromatic acid and a 3-7 C alkylene diol and polyvinyl alcohol or polyvinyl pyrrolidone in hexafluoroisopropanol or trifluoroacetic acid or mixtures thereof. Solutions contain up to 20% of the total resins and preferred polyesters are polytrimethylene and polypentamethylene terephthalates.</p> |
| 申请公布号 |
CA1025590(A) |
申请公布日期 |
1978.01.31 |
| 申请号 |
CA19720159248 |
申请日期 |
1972.12.18 |
| 申请人 |
CHEMICAL SYSTEMS INCORPORATED |
发明人 |
KESTING, ROBERT E. |
| 分类号 |
B01D67/00;B01D71/48;(IPC1-7):08J9/26 |
主分类号 |
B01D67/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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