Process for the preparation of polyamines and their use for the

Details Process for the preparation of polyamines and their use for the Process for the preparation of polyamines and their use for the

1988-03-24

1989-05-30

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525459, 525460, 528 48, 528 52, 528 57, 528 68, 528 76, 528 80, 564308, 564330, 564453, 564454, 564461, 564511, C08G 1800

Patent

active

048352241

ABSTRACT:
Polyamines are produced by hydrolyzing an isocyanate compound in the presence of at least one of a selected group of catalysts and a water miscible polar organic solvent in substantially homogeneous phase at 40.degree.-170.degree. C. The catalyst employed is selected from potassium hydroxide, rubidium hydroxide, cesium hydroxide, potassium alcoholates, rubidium alcoholates, cesium alcoholates, potassium carboxylates, rubidium carboxylates and cesium carboxylates. These polyamines are useful in the production of polyurethane(urea)s.

REFERENCES:
patent: 4386218 (1983-05-01), Rasshofer et al.
patent: 4515923 (1985-05-01), Fauss et al.
patent: 4540720 (1985-09-01), Rasshofer et al.
patent: 4565645 (1986-01-01), Rasshofer et al.
The Organic Chemistry of Nitrogen by N. V. Sidgwick, Clarendon Press, Oxford, pp. 236 and 326, 1966.
Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, by J. March, McGraw Hill, p. 658, 1968.

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