发明名称 |
FOAMED POLYIMIDE AND POLYAMIDE-IMIDE, AND PRODUCTION THEREOF |
摘要 |
Methods of making modified polyimide/polyimide-amide foams and the resulting compositions. An N-substituted aliphatic imide is prepared by reacting a suitable aromatic dianhydride with a suitable oxoimine. A polyimide forming material is prepared by dissolving the N-substituted aliphatic imide in an esterifying solvent, then adding a suitable aromatic diamine. This material is dried to a powder or film. A foam is produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient flexible foam. Depending upon heating conditions, a polyimide, polyimide-amide or mixture thereof may be produced, resulting in foams having varying physical properties. |
申请公布号 |
DE3364335(D1) |
申请公布日期 |
1986.08.07 |
申请号 |
DE19833364335 |
申请日期 |
1983.03.23 |
申请人 |
GAGLIANI, JOHN;LONG, JOHN V. |
发明人 |
GAGLIANI, JOHN |
分类号 |
C08L79/08;C08G73/00;C08G73/10;C08G73/14;C08J9/02;(IPC1-7):C08G73/10;B29C67/22 |
主分类号 |
C08L79/08 |
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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