NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login

Press Enter or click the Search button to begin your search.

Back to Results
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 has been mixed, and utilizing solvent or mixture of solvents for the reaction.
Document ID
19850013039
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
August 12, 2013
Publication Date
February 5, 1985
Subject Category
Nonmetallic Materials
Report/Patent Number
NAS 1.71:LAR-12775-2
Patent Number: US-PATENT-4,497,935
Report Number: NAS 1.71:LAR-12775-2
Patent Application Number: US-PATENT-APPL-SN-461788
Patent Application Number: US-PATENT-APPL-SN-308201
Patent Number: NASA-CASE-LAR-12775-2
Patent Number: US-PATENT-4,389,504
Accession Number
85N21349
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,497,935|NASA-CASE-LAR-12775-2|US-PATENT-4,389,504
Patent Application
US-PATENT-APPL-SN-461788|US-PATENT-APPL-SN-308201

Related Records

IDRelationTitleN83-29390Superseded By
No Preview Available