Process for preparing N,N,N',N'-tetraphenyldiaminomethane

Details Process for preparing N,N,N',N'-tetraphenyldiaminomethane Process for preparing N,N,N',N'-tetraphenyldiaminomethane

1974-11-18

1979-09-11

Hines, Robert V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252401, 260 459QA, 260809, C07C 9116

Patent

active

041675266

ABSTRACT:
N,N,N',N'-tetraphenyldiaminomethane, antioxidant for rubber, is prepared by reaction of 2 molar proportions of diphenylamine and 0.8-1.3 molar proportions of formaldehyde at room temperature. The reaction may be carried out in a storage container, for example a thermoplastic container which, holding the tetraphenyldiamonomethane, can be added to and will blend into a rubber mix.

REFERENCES:
patent: 1890916 (1932-12-01), Semon
Craig, "Journal American Chemical Society", vol. 55, pp 3723-3727 (1933).
Walker, "Formaldehyde", 3rd Ed., p. 632 (1964).

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