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A tough high performance composite matrixThis invention is a semi-interpenetrating polymer network which includes a high performance thermosetting polyimide having a nadic end group acting as a crosslinking site and a high performance linear thermoplastic polyimide. An improved high temperature matrix resin is provided which is capable of performing in the 200 to 300 C range. This resin has significantly improved toughness and microcracking resistance, excellent processability, mechanical performance and moisture and solvent resistances.
Document ID
19930004228
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Pater, Ruth H. (NASA Langley Research Center Hampton, VA, United States)
Johnston, Norman J. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
October 27, 1992
Subject Category
Composite Materials
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-429514
Patent Number: US-PATENT-5,159,029
Patent Number: NASA-CASE-LAR-14338-1
Accession Number
93N13416
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,159,029|NASA-CASE-LAR-14338-1
Patent Application
US-PATENT-APPL-SN-429514

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