Hydrolysis process for polyamines

Details Hydrolysis process for polyamines Hydrolysis process for polyamines

1993-01-15

1994-02-01

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564 61, 564414, 564468, 564489, 564511, 528 53, 528 57, C07C 8500

Patent

active

052833640

ABSTRACT:
Polyamines containing primary amino groups are made by hydrolyzing an isocyanate with water in the presence of a solvent which is a carboxylic acid amide. The solvent must be used in a quantity of at least 10% by weight solvent based on 100% by weight of isocyanate. The weight ratio of solvent to water must be from 3 to 200. A homogeneous phase is maintained during the hydrolysis which is carried out at temperatures of from 20.degree. to 210.degree. C. A not incorporable basic and/or metal catalyst particularly alkali metal hydroxides may be employed. The polyamines produced by this process are particularly useful for the production of polyurethanes.

REFERENCES:
patent: 2888439 (1959-05-01), Simons
patent: 3044989 (1962-07-01), Shivers
patent: 3385829 (1968-05-01), Heydkamp et al.
patent: 3525871 (1970-08-01), Lehtinen
patent: 3808250 (1974-04-01), Blahak et al.
patent: 3931116 (1976-01-01), Bernstein et al.
patent: 4129741 (1978-12-01), Schmidt et al.
patent: 4153801 (1979-05-01), Schmidt et al.
patent: 4169206 (1979-09-01), Mazanek et al.
patent: 4180644 (1979-12-01), Marquis et al.
patent: 4224417 (1980-09-01), Hajek et al.
patent: 4247677 (1981-01-01), Schmidt et al.
patent: 4260557 (1981-04-01), Mazanek et al.
patent: 4328322 (1982-05-01), Baron
patent: 4386218 (1983-05-01), Rasshofer et al.
patent: 4504648 (1985-03-01), Otani et al.
patent: 4515923 (1985-05-01), Fauss et al.
patent: 4525534 (1985-06-01), Rasshofer et al.
patent: 4540720 (1985-09-01), Rasshofer et al.
patent: 4565645 (1986-01-01), Rasshofer et al.
patent: 4835224 (1989-05-01), Ruckes et al.
patent: 4843107 (1989-06-01), Ruckes et al.
patent: 4843108 (1989-06-01), Ruckes et al.
patent: 4931595 (1990-06-01), Rasshofer et al.
patent: 4970342 (1990-11-01), Fauss et al.
J. March, "Advanced Organic Chemistry: Reactions, Mechanisms, and Structure" p. 658, McGraw Hill Book Co. 1968, N.Y.
"Organic Synthesis", Collective vol. 4, p. 819, John Wiley & Sons, Inc. 1963, N.Y.
E. Mohr J. Prakt., Chem. vol. 71, p. 133, 1905.
Helv. Chim. Acta, vol. 21, pp. 1100 et seq., C. Naegeli et al (1938).
J. Prakt. Chemie, vol. 130, 1931, pp. 314 et seq., H. John.
J. Prakt. Chemie, vol. 130, 1931, pp. 332, et seq. H. John.
Condensed Chemical Dictionary, Nineth Edition (Vua Nostrand Reinhold Company, 1977), p. 444.
The Organic Chemistry of Nitrogen, N. V. Sidgwick, Clarendon Press, Oxford, p. 236, 1966.

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