Unsymmetrical n,n'-di(sec-alkyl)p-phenylenediamines and...

Details Unsymmetrical n,n'-di(sec-alkyl)p-phenylenediamines and... Unsymmetrical n,n'-di(sec-alkyl)p-phenylenediamines and...

C - Chemistry, Metallurgy

07

C

31/79

C07C 7/20 (2006.01) C08C 19/00 (2006.01)

Patent

CA 1064691

ABSTRACT OF DISCLOSURE Dialkyl-p-phenylenediamine compositions are described selected from the group consisting of N-isopropyl-N'-5-methyl-3- heptyl-p-phenylenediamine, N-1,3-dimethylbutyl-N'-1,4-dimethyl- pentyl-p-phenylenediamine and mixtures comprising first component of symmetrical N,N'-di(sec-hexyl)-p-henylene- diamine in less than 50% by weight of the total composition, second component of unsymmetrical N-(sec-hexyl)-N'-(sec-alkyl)- p-phenylenediamine having 7 or 8 carbon atoms in said sec-alkyl in amount greater than the first component and third component of symmetrical N,N'-di(sec-alkyl)-p-phenylenediamine having 7or 8 carbon atoms in each alkyl group which compositions are useful for preservation of organic materials. - 1 -

238793

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