Ethnyl terminated polyimide composites
AssigneeHughes Aircraft Company
InventorsNorman Bilow, Boyce G. Kimmel
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Abstract
A new class of copolymers obtained via the copolymerization of diethynylbenzene with an ethynyl-substituted polyimide oligomer has been used to prepare composite materials exhibiting zero void content. The copolymers are thermosetting in character and are particularly useful for the fabrication of composite structures such as glass fiber reinforced laminates and molding compounds and graphite fiber reinforced laminates and molding compounds.
Claims8
Laminating materials comprising copolymers or terpolymers consisting of an ethynyl-substituted polyimide oligomer coreacted with di- or polyethynyl-substituted diluent or mixtures of such diluents and a reinforcing fabric, filler or chopped fiber.
Composite structural materials comprising copolymers or terpolymers consisting of polyimide oligomers having ethynyl terminated end groups coreacted with a di- or polyethynyl- substituted diluent or mixtures of such diluents and a reinforcing fabric, filter or chopped fiber.
Dependencies are inferred from the claim text.