THERMALLY REVERSIBLE ISOCYANATE-BASED POLYMERS

2114238 9303080 PCTABS00019 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 oligomer...

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Hauptverfasser: CREMEANS, GEORGE E, BIGG, DONALD M, MARKLE, RICHARD A, SOWELL, SYLVESTER, BRUSKY, PHYLLIS L, ELHARD, JOEL D
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:2114238 9303080 PCTABS00019 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.