Method for preparing polyurethanes using 3,9-bis(2-hydrazidoethy

Details Method for preparing polyurethanes using 3,9-bis(2-hydrazidoethy Method for preparing polyurethanes using 3,9-bis(2-hydrazidoethy

1974-11-25

1976-02-24

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775AM, 260 775CH, 2603407, C08G 1832, C07D31904

Patent

active

039403696

ABSTRACT:
Polyurethane is prepared by reacting a prepolymer having terminal isocyanate groups with 3,9-bis(2-hydrazidoethyl)-2,4,8,10-tetraoxaspiro-[5,5]-undecane.

REFERENCES:
patent: 3475377 (1969-10-01), Rosendahl et al.
patent: 3609169 (1971-09-01), Iifima et al.

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