发明名称 |
Dicarboxylic acid polyesters and polyamides for fluid separation membranes |
摘要 |
Polyester and polyamide membranes having improved permeation properties are disclosed. The membranes are derived from t-butyl-substituted isophthaloyl halide, in particular, 5-t-butylisophthaloyl chloride. The t-butyl-substituted isophthaloyl chloride can be employed with monomers such as diols and diamines to provide polyesters and polyamides with improved permeation properties.
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申请公布号 |
US5073176(A) |
申请公布日期 |
1991.12.17 |
申请号 |
US19900609443 |
申请日期 |
1990.11.05 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
ARTHUR, SAMUEL D. |
分类号 |
B01D71/48;B01D71/56;C08G63/181;C08G63/19;C08G69/26 |
主分类号 |
B01D71/48 |
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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