Carbodiimide-isocyanurate foams prepared from acid-modified tolu

Details Carbodiimide-isocyanurate foams prepared from acid-modified tolu Carbodiimide-isocyanurate foams prepared from acid-modified tolu

1974-10-02

1976-07-13

Ivy, C. Warren

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AT, 260 25AW, 260453SP, 260471C, C08G 1802, C08G 1812, C08G 1814

Patent

active

039692884

ABSTRACT:
Acid-modified toluene diisocyanate is used to prepare rigid cellular foams characterized by carbodiimide linkages either by a one-shot process or a quasi-prepolymer process. The use of acid-modified toluene diisocyanate exhibits a more controllable reactivity with a one-shot foaming process and more stable quasi-prepolymers when using such systems.

REFERENCES:
patent: 3637542 (1972-01-01), Doerge
patent: 3759916 (1973-09-01), Pitts
patent: 3781235 (1973-12-01), Trott
patent: 3793362 (1974-02-01), Kolakowski
patent: 3801518 (1974-04-01), Irwin
Advance Data Sheet, "Thanol R-350-X", Jefferson Chemical Co., Inc., pp. 1 and 12, July 19, 1965.

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