Process of preparing mixtures of polyalkylenepolyamines and alka

Details Process of preparing mixtures of polyalkylenepolyamines and alka Process of preparing mixtures of polyalkylenepolyamines and alka

1990-12-05

1992-06-02

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

502240, 502250, 502251, 564346, 564349, 564355, 564372, 564401, 564402, 564474, C07C20900

Patent

active

051188511

ABSTRACT:
A process of preparing a mixture of polyalkylenepolyamines and alkanolpolyamines comprising contacting a difunctional aliphatic alcohol with a primary or secondary aliphatic amine in the presence of a metal silicate catalyst wherein the metal is selected from the group consisting of Groups IIA, IIIB, and the lanthanide and actinide metals. For example, monoethanolamine reacts with diethylenetriamine in the presence of magnesium silicate to yield a mixture of higher molecular weight linear and branched polyethylenepolyamines and their corresponding alkanolpolyamines. These product mixtures are useful in the formation of specialty polyurethanes.

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patent: 2412209 (1946-12-01), Dickey et al.
patent: 2985658 (1961-05-01), Krause
patent: 3714259 (1973-01-01), Lichtenwalter et al.
patent: 4314083 (1982-02-01), Ford et al.
patent: 4495369 (1985-01-01), Werner et al.

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