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Toughening reinforced epoxy composites with brominated polymeric additivesCured polyfunctional epoxy resins including tris(hydroxyphenyl)methane triglycidyl ether are toughened by addition of polybrominated polymeric additives having an EE below 1500 to the pre-cure composition. Carboxy-terminated butadiene-acrylonitrile rubber is optionally present in the pre-cure mixture as such or as a pre-formed copolymer with other reactants. Reinforced composites, particularly carbon-reinforced composites, of these resins are disclosed and shown to have improved toughness.
Document ID
19860017979
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Nir, Z. (National Academy of Sciences - National Research Council Washington, D. C., United States)
Gilwee, W. J., Jr. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
August 15, 1985
Subject Category
Nonmetallic Materials
Report/Patent Number
Patent Number: US-PATENT-4,588,778
Patent Number: NASA-CASE-ARC-11427-2
Patent Application Number: US-PATENT-APPL-SN-765980
Accession Number
86N27451
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,588,778|NASA-CASE-ARC-11427-2
Patent Application
US-PATENT-APPL-SN-765980

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