发明名称 |
COPOLYIMIDES WITH A COMBINATION OF FLEXIBILIZING GROUPS |
摘要 |
Novel copolyimides are prepared by reacting one or more aromatic dianhydrides with a meta-substituted phenylene diamine and an aromatic bridged diamine. The incorporation of meta-substituted phenylene diamine derived units and bridged aromatic diamine derived units into the linear aromatic polymer backbone results in a copolyimide of improved flexibility, processability, and melt-flow characteristics. The novel copolyimides are especially useful as thermoplastic hot-melt adhesives. |
申请公布号 |
CA1276746(C) |
申请公布日期 |
1990.11.20 |
申请号 |
CA19860511903 |
申请日期 |
1986.06.19 |
申请人 |
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
ST. CLAIR, TERRY L.;BURKS, HAROLD D.;PROGAR, DONALD J. |
分类号 |
C08G73/00;C07D209/48;C08G73/10;C08J5/12;C09J179/08 |
主分类号 |
C08G73/00 |
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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