发明授权
US5151489A Copolymers containing polybenzoxazole, polybenzothiazole and
polybenzimidazole moieties
失效
含有聚苯并恶唑，聚苯并噻唑和聚苯并咪唑部分的共聚物
- 专利标题： Copolymers containing polybenzoxazole, polybenzothiazole and polybenzimidazole moieties
- 专利标题（中）： 含有聚苯并恶唑，聚苯并噻唑和聚苯并咪唑部分的共聚物
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申请号： US407973申请日： 1989-09-15
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公开(公告)号： US5151489A公开(公告)日： 1992-09-29
- 发明人: William J. Harris , Wen-Fang Hwang
- 申请人： William J. Harris , Wen-Fang Hwang
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C08G65/40
- IPC分类号： C08G65/40 ; C08G73/18 ; C08G73/22 ; C08G75/32 ; C08G81/00 ; C08L71/00
摘要：
Block copolymers can be formed from heterocyclic polymers such as PBO and thermoplastic polymers such as polyamide or poly(aromatic ether ketone). The block copolymer compositions are thermoplastic and do not experiSTATEMENT OF GOVERNMENT INTERESTThis invention was made with Government support under contract F33615-86-C-5068 awarded by the Department of the Air Force. The Government has certain rights in this invention.
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