Process for the preparation of polyaryl amines having methylene

Details Process for the preparation of polyaryl amines having methylene Process for the preparation of polyaryl amines having methylene

1980-04-16

1983-07-12

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

260453PH, 260453AM, 26050116, 26050121, 564333, C07C 8508

Patent

active

043932398

ABSTRACT:
A process has been invented for the preparation of polyaryl polyamines having methylene bridges by condensation of primary arylamines with formaldehyde in the presence of a catalyst. According to the invention, the amount of binuclear compounds and an improved viscosity can be obtained if one adds the remaining amount of primary arylamine immediately after the formaldehyde.

REFERENCES:
patent: 3297759 (1967-01-01), Curtis et al.
patent: 3367969 (1968-02-01), Perkins
patent: 3857890 (1974-12-01), Recchia
patent: 3996283 (1976-12-01), Korofel

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