C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/48 (2006.01) C08G 18/76 (2006.01) C08J 9/14 (2006.01)
Patent
CA 2748041
Foam-forming compositions are disclosed which contain a mixture of cis- 1,1,1,4,4,4-hexafluoro-2-butene and 1,1,1,3,3-pentafluoropropane. Also disclosed is a closed-cell polyurethane or polyisocyanurate polymer foam prepared from reaction of an effective amount of the foam-forming composition with a suitable polyisocyanate. Also disclosed is a process for producing a closed-cell polyurethane or polyisocyanurate polymer foam by reacting an effective amount of the foam-forming composition with a suitable polyisocyanate.
L'invention porte sur des compositions formant une mousse qui contiennent un mélange de cis-1,1,1,4,4,4-hexafluoro-2-butène et de 1,1,1,3,3-pentafluoropropane. L'invention porte également sur une mousse de polymère polyuréthane ou polyisocyanurate à cellules fermées, préparée par la réaction d'une quantité efficace de la composition formant une mousse avec un polyisocyanate approprié. L'invention porte également sur un procédé de fabrication d'une mousse de polymère polyuréthane ou polyisocyanurate à cellules fermées, par réaction d'une quantité efficace de la composition formant une mousse avec un polyisocyanate approprié.
Creazzo Joseph Anthony
Loh Gary
E.i. Du Pont de Nemours And Company
Torys Llp
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