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Polyimides prepared from 3,5-diamino benzo trifluorideHigh performance, thermooxidatively stable polyimides are prepared by reacting aromatic diamines with pendant trifluoromethyl groups and dianhydrides in an amide solvent to form a poly(amic acid), followed by cyclizing the poly(amic acid) to form the corresponding polyimide.
Document ID
19930019894
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Gerber, Margaret K. (Proctor and Gamble Co. Cincinnati, OH., United States)
Pratt, J. Richard (PRC Kentron, Inc. Hampton, VA., United States)
St.clair, Terry L. (NASA Langley Research Center Hampton, VA, United States)
St.clair, Anne K. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
June 8, 1993
Subject Category
Nonmetallic Materials
Report/Patent Number
Patent Number: NASA-CASE-LAR-14206-1
Patent Number: US-PATENT-5,218,083
Patent Application Number: US-PATENT-APPL-SN-429574
Accession Number
93N29083
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-14206-1|US-PATENT-5,218,083
Patent Application
US-PATENT-APPL-SN-429574

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