Acetone-diphenylamine condensation product

Acetone-diphenylamine condensation product, antidegradant - staining. 

Also, acetone is reacted with diphenylamine to make the antioxidant known as an acetone diphenylamine condensation product. 

Diphenylamine reacts with acetone to produce acetone diphenylamine condensation product antioxidant for rubber. 

Aromatic amines, such as phenyl- -naphthylamine or condensation products of diphenylamine with acetone condensates, are excellent antioxidants and antiozonants but cause color development. From the sterically hindered phenols, monocyclic phenols, such as 2,6-di-teit-butyl-p-cresol, are less effective antioxidants but remain white and nontoxic during aging. They are, however, volatile and provide poor protection at elevated processing temperatures. Polycyclic phenols, such as 2,2 -methylene-bis (4-methyl-6-teit-butylphenol), are relatively nonvolatile, but become discolored by oxidation to a conjugated system. O Shea... 

Vanox AM. See Diphenylamine-acetone Vanox AT. See Butyraldehyde-aniline condensation product... 

Bisphenol A, polybutylated 4,4 -Butylidenebis (6-t-butyl-m-cresol) Butyraldehyde-aniline condensation product N,N -Di (n-octyl)-p-phenylenediamine Diphenylamine-acetone Zinc diisobutyidithiocarbamate Zinc 2-mercaptotoluimidazole antioxidant, NR latex Dimethylamine antioxidant, NR, SR... 

Chemical relaxation of stress in rubbers of the first type proceeds at a lower rate than that of rubber of the second type. In both types of rubbers, stress relaxation is determined by the breakdown of transverse bonds, formed during the process of vulcanization (Fig. 166). Moreover, the introduction not only of phenyl-/ -naphthylamine, but also of such substances as the condensation products of acetone and aniline, mercaptobenzimidazole, or the condensation product of diphenylamine and acetone into rubbers vulcanized only with sulfur and altax substantially reduces the rate of decomposition of transverse bonds (Fig. 167). 

Activated azodicarbonamide (WTR) Ammonium diethyl dithiocarbamate (WTR) see also ADC Condensation product from acetone and diphenylamine (WTR)... 

Over half of the remaining market for products used in the processing of rubber is made up of antioxidants, antiozonants and stabilizers, either amino compounds or phenols. Aniline is used to manufacture vulcanization accelerators, antioxidants and antidegradants. Of the latter, several are A-substituted derivatives of p-phenylenediamine and octyl dipheny-lamine. Diphenylamines terminate free-radical reactions by donating the amino hydrogen, and are used to protect a wide range of polymers and elastomers. Many synthetic rubbers incorporate alkylated diphenylamine antioxidants. Other antioxidants include aryl amine resinous products from, e.g. condensation of aniline and acetone in the presence of... 

Diphenylamine/acetone reaction product Diphenylamine-ketone condensates... 

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