C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/14 (2006.01)
Patent
CA 2180251
Foamable compositions comprise (a) at least one normally liquid, unsaturated perfluorinated blowing agent compound-selected from the group consisting of perfluoroolefin compounds, e.g., perfluoro (4-methylpent-2-ene), perfluoroaromatic compounds, e.g., hexafluorobenzene, and perfluorocycloolefin compounds, e.g., perfluorocyclohexane, the perfluoroolefin compounds optionally containing one or more catenary heteroatoms; and (b) at least one foamable polymer or the precursors of at least one foamable polymer. The compositions are useful in preparing polymeric, e.g., polyurethane, foams.
Compositions expansibles contenant (a) au moins un composé d'agent moussant perfluoré non saturé liquide à température ambiante sélectionné dans le groupe formé de composés de perfluorooléfine tels que le perfluoro (4-méthylpent-2-ene), de composés perfluoroaromatiques, tels que l'hexafluorobenzène, et de composés de perfluorocyclooléfine, tels que le perfluorocyclohexène, lesdits composés de perfluorooléfine contenant facultativement au moins un hétéroatome caténaire, et (b) au moins un polymère expansible ou des précurseurs d'au moins un polymère expansible. Ces compositions sont utiles pour préparer des mousses polymères telles que des mousses de polyuréthane.
Dams Rudolf J.
Flynn Richard M.
Focquet Koen
Gasper Alton J.
Owens John G.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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