NONYLATED DIPHENYLAMINES Russian patent published in 2003 - IPC

Abstract RU 2198870 C2

FIELD: industrial organic synthesis. SUBSTANCE: nonylated diphenylamine mixture containing, vol %: dinonyldiphenylamine at least 68.0, nonyldiphenylamine 30.0-30.0, trinonyldiphenylamine at most 3.5, and diphenylamine at most 1.0 is prepared using small amounts of acid catalyst and characterized by high level of dinonyldiphenylamines, low level of byproducts, and cinematic viscosity below 500 mmg/s. EFFECT: enhanced resistance against oxidative, thermal, and/or light-induced destruction. 7 cl, 2 tbl, 5 ex

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RU 2 198 870 C2

Authors

Ehbli Bit Mikaehl'

Ehvans Samuil D-R

Gati Shandor D-R

Dates

2003-02-20—Published

1998-06-02—Filed