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AssigneeBattelle Memorial Institute
InventorsRichard A. Markle, Phyllis L. Brusky, George E. Cremeans, Joel D. Elhard, Donald M. Bigg, Sylvester Sowell
Estimating the term…
Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. Aromatic polyimide, aromatic polycarbonate, polyarylsulfide, aromatic polyester with liquid crystal property, and polyarylimidazolidine oligomers are incorporated into the isocyanate or labile hydrogen compounds to give high-performance characteristics. Such thermally-reversible isocyanate-based polymer compositions with high-performance characteristics are useful, among other things, as finish surface coatings on composite materials such as polypropylene and polyethylene terephthalate. Novel phenolic-hydroxyl terminated polyarylsulfide and polyarylimidazolidine oligomers and their preparation are also described.
A process for preparing a polyarylsulfide oligomer with phenolic hydroxyl endgroups comprising:
A process for forming a finish surface on a composite material comprising:
Dependencies are inferred from the claim text.