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US 6,297,298 B1Granted
Phthalonitrile prepolymerization composition
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsTeddy M. Keller, Satya B. Sastri
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Abstract
A polymerizable composition suitable for storage prior to polymerization is made by mixing a phthalonitrile monomer and a curing agent under non-reactive conditions below the melting temperatures of the phthalonitrile monomer and the curing agent and in the absence of a solvent to create a homogeneous, unreacted mixture.
Claims13
A method of storing a phthalonitrile polymer comprising the steps of
- mixing a phthalonitrile monomer and a curing agent at a first location under non-reactive conditions at ambient temperature and in the absence of a solvent to create a homogeneous, unreacted mixture.
A method of storing a phthalonitrile polymerizable composition for storage comprising the steps of
- mixing a phthalonitrile monomer and a curing agent under non-reactive conditions at ambient temperature and in the absence of a solvent to create a homogeneous, unreacted mixture, and
- placing the homogeneous, unreacted mixture in a storage container.
Dependencies are inferred from the claim text.