Novel compounds produced by reacting 5-sulfoisophthalic acid or a salt thereof (e.g. the potassium salt) with a water soluble copper salt (e.g. cupric acetate monohydrate) are described. The compounds are effective antiozonants for polyamide fibers, particularly, when the fibers are dyed with disperse dyes. Generally, sufficient amounts of the compounds are incorporated into the fibers to provide from 10 to 100 ppm, on weight of fiber, of copper.

Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula I [R--S(.dbd.O).sub.m--CH.sub.2--CH(OH)--CH.sub.2].sub.n--N(R.sup.1).sub.2-- n--R.sup.2, (I) in which R is C.sub.4 C.sub.20alkyl, hydroxyl-substituted C.sub.4 C.sub.20alkyl; phenyl, benzyl, .alpha.-methylbenzyl, .alpha.,.alpha.-dimethylbenzyl, cyclohexyl or --(CH.sub.2).sub.qCOOR.sup.3, and, if m is 0, R ma...

Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula (I): [R--S(.dbd.O).sub.m --CH.sub.2 --CH(OH)--CH.sub.2 ].sub.n --N(R.sup.1).sub.2-n --R.sup.2, in which R is C.sub.4 -C.sub.20 alkyl, hydroxyl-substituted C.sub.4 -C.sub.20 alkyl; phenyl, benzyl, .alpha.-methylbenzyl, .alpha.,.alpha.-dimethylbenzyl, cyclohexyl or --(CH.sub.2).sub.q COOR.sup.3, and, if m is ...

There is disclosed compounds having, within their structural formulae, a trivalent moiety: ##STR1## which exhibit antiozonant activity when added to rubber compositions at antiozonant effective levels and which exhibit synergistic antiozonant activity when used with conventional antiozonants in rubber compositions. There is also disclosed novel compounds which can be used as antiozonants.

The present invention relates to a composition which exhibits antiozonant activity in diene containing rubbers comprising the reaction product of a multi-step process comprising: (1) reacting under condensation conditions an aldehyde and an amine containing compound to form a condensation product, wherein said aldehyde is selected from the group consisting of formaldehyde, acetaldehyde or mixtures thereof; and said amine containing compound is selected from the group consisting of: N,N'-di-subst...

The present invention relates to a composition which exhibits antiozonant activity in diene containing rubbers comprising the reaction product of a multi-step process comprising: (1) reacting under condensation conditions an aldehyde and an amine containing compound to form a condensation product, wherein said aldehyde is selected from the group consisting of formaldehyde, acetaldehyde or mixtures thereof; and said amine containing compound is selected from the group consisting of: N,N'-di-subst...

Liquid antiozonant mixtures obtained from the process comprising simultaneously reacting at least one unsubstituted and/or substituted paraphenylenediamine compound with a carbonyl compound mixture comprising acetone and at least one other carbonyl compound selected from the group consisting of ketones containing from 4 to about 12 carbon atoms, aldehydes containing from 1 to about 12 carbon atoms and mixtures thereof in the presence of a reductive alkylation catalyst is provided. Rubber composi...

Liquid antiozonant mixtures obtained from the process comprising simultaneously reacting at least one unsubstituted and/or substituted paraphenylenediamine compound with a carbonyl compound mixture comprising acetone and at least one other carbonyl compound selected from the group consisting of ketones containing from 4 to about 12 carbon atoms, aldehydes containing from 1 to about 12 carbon atoms and mixtures thereof in the presence of a reductive alkylation catalyst is provided. Rubber composi...

The use of open-chain acetals or ketals corresponding to the following general formula ##STR1## as non-discoloring anti-ozonants for natural and/or synthetic rubber.

Process for purifying N,N'-disubstituted p-phenylenediamine antiozonants and oil stabilizers utilizes a steam-distillation step to remove Schiff's base derivatives of p-phenylenediamine and N-monosubstituted p-phenylenediamine as well as aldehyde and ketone contaminants and corresponding alcohols thereof.