Process for the production of polyurethane foams

Details Process for the production of polyurethane foams Process for the production of polyurethane foams

1975-05-15

1977-08-16

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AM, 260 25BE, 260 334R, 260858, C08G 1814, C08G 1828

Patent

active

040425371

ABSTRACT:
The instant invention is directed to polyurethane foams and the process for their manufacture, wherein an organic polyisocyanate is reacted, in the presence of a blowing agent, with a dispersion of a polyurea and/or a polyhydrazodicarbonamide in a relatively high molecular weight organic compound containing at least one hydroxyl group.

REFERENCES:
patent: 3294711 (1966-12-01), von Bonin
patent: 3325421 (1967-06-01), Muller
patent: 3383351 (1968-05-01), Stamberger
patent: 3523093 (1970-08-01), Stamberger
patent: 3752786 (1973-08-01), Rossitto et al.

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