Carbodiimide-isocyanurate foams modified with polyfurfuryl alcoh

Details Carbodiimide-isocyanurate foams modified with polyfurfuryl alcoh Carbodiimide-isocyanurate foams modified with polyfurfuryl alcoh

1975-12-18

1977-06-14

Ivy, C. Warren

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25BE, 260 25BF, C08G 1854

Patent

active

040296113

ABSTRACT:
Rigid cellular foams are prepared by catalytically condensing an organic polyisocyanate in the presence of (a) a carbodiimide-promoting catalyst, (b) a trimerization catalyst, and (c) a polyfurfuryl alcohol polymer. The resulting foam compositions are characterized by carbodiimide and isocyanurate linkages and exhibit improved friability and flame retardancy.

REFERENCES:
patent: 3509103 (1970-04-01), Teague
patent: 3585156 (1971-06-01), Hall
patent: 3865757 (1975-02-01), Wade
patent: 3887501 (1975-06-01), Narayan
patent: 3894972 (1975-07-01), Narayan

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