METHOD OF PRODUCING PHENYLENEDIAMINE ANTIOXIDANT FOR EMULSION-POLYMERISED RUBBER Russian patent published in 2009 - IPC C07C51/54 C08L21/00 

Abstract RU 2373184 C2

FIELD: chemistry.

SUBSTANCE: method involves reacting derivative of maleic anhydride with n-aminodiphenylamine while heating to temperature not above 90°C. The derivative of maleic anhydride used is alkenyl succinic anhydride or a mixture of alkenyl succinic anhydrides of general formula: , where n=6,8,10,12,14,16,18 with molar ratio of maleic anhydride links to n-aminodiphenylamine equal to 1.0-1.05:1.0.

EFFECT: improved processing characteristics of antioxidant, characterised by low dropping point, high efficiency for emulsion-polymerised rubber and latex, protection of said rubber from thermal-oxidative ageing.

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RU 2 373 184 C2

Authors

Gusev Jurij Konstantinovich

Panevin Aleksandr Semenovich

Kovalev Valerij Vladimirovich

Kovalev Vladimir Abramovich

Ermolaev Mikhail Vladimirovich

Churzin Aleksandr Nikolaevich

Andrjukhova Nonna Petrovna

Dates

2009-11-20Published

2007-12-07Filed