发明名称 |
Copolyimide 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.
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申请公布号 |
US4837300(A) |
申请公布日期 |
1989.06.06 |
申请号 |
US19870071686 |
申请日期 |
1987.07.09 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATION OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
ST. CLAIR, TERRY L.;BURKS, HAROLD D.;PROGAR, DONALD J. |
分类号 |
C08G73/10 |
主分类号 |
C08G73/10 |
代理机构 |
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地址 |
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