Monsanto Company

Eiichi Morita

Otto W Maender

Substituted or unsubstituted N,N'-dithiobisformanilide compounds are disclosed, where the substituents can be lower alkyl, lower alkoxy, halogen or CF.sub.3. The compounds are vulcanizing agents for diene rubbers. Diene rubber compounds containing a cross-linking amount of the above compounds are also disclosed.

N,N'-dithiobisformanilides and their use in diene rubber

Compositions of vulcanizeable diene rubber, a cross-linking agent, a vulcanization accelerator and a vulcanization system alterative are disclosed, which have improved properties of scorch delay, cure rate and reversion resistance. The alterative is a compound of the formula ##STR1## where R.sub.1 and R.sub.2 are the same or different radicals selected from alkyl of 1-12 carbon atoms, phenyl, cycloalkyl of 3-8 carbon atoms and alkyaryl and aralkyl of 7-12 carbon atoms, and R.sub.3 is selected from the same as R.sub.1 and R.sub.2, optionally substituted with one or more halogen, nitro, alkoxy, carboalkoxy, acyl, acyloxy, amido, cyano, thio or sulfonyl substituents.

Rubber compositions containing a vulcanization system alterative

Vulcanizable rubber compositions are described which are inhibited from premature vulcanization by thio-substituted-1,3,5-triazine-diamine or -triamine.

Thio-amino-1,3,5-triazines

Diene rubber compositions containing N,N'-dithioformanilide crosslinkers

Prevulcanization inhibitors of thio-triazine-amines for rubber

Vulcanizable rubber compositions are described which are inhibited from premature vulcanization by activated methylene di(thioethers) in which the adjacent activating groups are either carbonyl or cyano. Novel compounds are also described.

Methylene thioethers

Vulcanizable rubber compositions are described which are inhibited from premature vulcanization by N-(sulfenyl) methacrylamides.

N-(Sulfenyl) methacrylamides

Vulcanizable rubber compositions containing N-(sulfenyl) methacrylamides

Vulcanizable rubber compositions inhibited from premature vulcanization

A novel class of N-sulfenyl derivatives of di(carbamic acid esters) are described. The new compounds inhibit premature vulcanization of rubber.

Scorch inhibited vulcanizable rubber compositions containing carbamic

Vulcanizable rubber compositions inhibited from premature vulcanization by inhibitors comprising a class of aryl carbamic acid esters of the formula ##STR1## in which R and R.sub.1 are mono-valent organic radicals, R.sub.2 is aryl and X is oxygen or sulfur are described.

Diallylaminomethyl-resorcinol compositions are described which are useful for adhering fiber to rubber.

Diallylaminomethyl-resorcinols

Improved polyester fiber-rubber vulcanizates are described which are prepared with phosphinothioyl amino sulfide of the formula ##STR1## as the vulcanization accelerator.

Growing community of inventors

Copley, OH, United States of America

Eiichi Morita