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Elastomer toughened polyimide adhesivesA rubber-toughened addition-type polyimide composition is disclosed which has excellent high temperature bonding characteristics in the fully cured state, and improved peel strength and adhesive fracture resistance physical property characteristics. The process for making the improved adhesive involves preparing the rubber containing amic acid prepolymer by chemically reacting an amine-terminated elastomer and an aromatic diamine with an aromatic dianhydride with which a reactive chain stopper anhydride was mixed, and utilizing solvent or mixture of solvents for the reaction.
Document ID
19830019969
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
St.clair, A. K. (NASA Langley Research Center Hampton, VA, United States)
St.clair, T. L. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
June 21, 1983
Subject Category
Nonmetallic Materials
Accession Number
83N28240
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-12775-1|US-PATENT-4,389,504
Patent Application
US-PATENT-APPL-SN-308201

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