发明名称 |
Diblock and triblock copolymers |
摘要 |
A diblock copolymer is disclosed having a first block of a polyalkylene oxide and a second block of glycolic acid ester and trimethylene carbonate linkages. A triblock copolymer is disclosed having a middle block obtained from an ethylene oxide homopolymer or a copolymer of ethylene oxide and a cyclic ether. Alternatively, the triblock copolymer middle block is obtained from a copolymer of formula (I): <IMAGE> (I) and formula (II): <IMAGE> (II) The copolymers are useful in medical and surgical applications.
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申请公布号 |
US4716203(A) |
申请公布日期 |
1987.12.29 |
申请号 |
US19860903797 |
申请日期 |
1986.09.05 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
CASEY, DONALD J.;JARRETT, PETER K.;ROSATI, LOUIS |
分类号 |
C08L67/00;A61K9/20;A61K9/70;A61K47/34;C08G63/64;C08G64/18;C08G65/16;C08K3/00;C08K5/00;(IPC1-7):C08L71/02;C08G63/06 |
主分类号 |
C08L67/00 |
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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