Triazinesulfenimides of dicarboxylic acids

Claim 2

A vulcanizable composition including a sulphurvulcanizable rubber, at least one member of the group consisting of sulphur, sulphur donors and sulphur-containing vulcanizing agents, a vulcanization accelerator and a triazine sulphenimide of the formula: ##STR7## R 1 , R 2 , R 3 and R 4 are hydrogen or alkyl with 1 to 4 carbon atoms; ##STR8## said triazine sulphenimide being present in an amount sufficient to delay the onset of the vulcanization reaction compound to the time of onset of the vulcanization reaction at the same temperature with the same composition without the triazine sulphenimide.

Claim 3

A composition according to claim 1 wherein ##STR9##

Claim 4

A composition according to claim 2 wherein both ##STR10## groups in the molecule are the same.

Claim 5

A composition according to claim 3 wherein ##STR11##

Claim 6

A composition according to claim 4 wherein R 5 and R 6 are hydrogen.

Claim 7

A composition according to claim 5 wherein R 1 and R 2 are both alkyl of 1 to 4 carbon atoms.

Claim 8

A composition according to claim 6 wherein R 1 and R 2 are both ethyl.

Claim 9

A composition according to claim 3 wherein R 5 and R 6 are methyl.

Claim 10

A composition according to claim 8 wherein R 1 and R 2 are both ethyl.

Claim 11

A triazine sulphenimide according to claim 3 wherein ##STR12##

Claim 12

A composition according to claim 10 wherein R 7 and R 8 are both methyl.

Claim 13

A composition according to claim 3 wherein Y is --CH 2 CH 2 --.

Claim 14

A composition according to claim 12 wherein R 1 and R 2 are both alkyl of 1 to 2 carbon atoms.

Claim 15

A composition according to claim 3 wherein ##STR13##

Claim 16

A composition according to claim 14 wherein R 1 and R 2 are both ethyl.

Claim 17

A composition according to claim 1 wherein ##STR14##

Claim 18

A composition according to claim 16 wherein at least one of R 1 and R 2 and at least one of R 3 and R 4 is alkyl of 1 to 4 carbon atoms.

Claim 19

A composition according to claim 17 wherein ##STR15##

Claim 20

A composition according to claim 1 wherein R 5 and R 6 are hydrogen or alkyl with 1 to 8 carbon atoms.

Claim 21

A composition according to claim 19 wherein Y is other than ##STR16##

Claim 22

A composition according to claim 1 wherein Y is other than ##STR17##

Claim 23

A composition according to claim 1 wherein Y is a divalent hydrocarbon radical.

Claim 24

A composition according to claim 22 wherein the Y hydrocarbon radical is an alkylene group.

Claim 25

A composition according to claim 22 wherein the Y hydrocarbon radical is a member of a six-membered carbon ring.

Claim 26

A composition according to claim 1 wherein ##STR18##

Claim 27

A composition according to claim 25 wherein R 5 and R 6 are hydrogen, alkyl of 1 to 8 carbon atoms or phenyl.

Claim 28

A composition according to claim 1 wherein the rubber is natural rubber or butadiene-styrene copolymer.

Claim 29

A composition according to claim 1 wherein the triazine sulphenimide is present in an amount of 0.1 to 10 parts per 100 parts by weight of the rubber.

Claim 30

A composition according to claim 28 including 0.1 to 50 parts per 100 parts by weight of the rubber of a sulphurcontaining silane of the formula: Z - alk - S n - alk - Z, in which Z is ##STR19## wherein R 1 is alkyl of 1 to 4 carbon atoms or phenyl, R 2 is alkoxy of 1 to 8 carbon atoms, cycloalkoxy of 5 to 8 carbon atoms, or alkylmercapto of 1 to 8 carbon atoms, alk is a divalent hydrocarbon group of 1 to 18 carbon atoms, and n is a number of 2 to 6.

Claim 31

A composition according to claim 29 wherein alk is alkylene of 1 to 6 carbon atoms.

Claim 32

A composition according to claim 30 wherein Z is (3), R 2 is alkoxy of 1 to 4 carbon atoms, and alk is alkylene of 2 to 3 carbon atoms and n is a number of 2 to 4.

Claim 33

A process for improving the processing safety of unvulcanized rubber compositions containing a sulphur vulcanizable rubber, at least one member of the group consisting of sulphur and sulphur donors, a vulcanization accelerator and a reinforcing rubber filler comprising the step of incorporating a triazine sulphenimide compound of the formula: ##STR20## R 1 , R 2 , R 3 and R 4 are hydrogen or alkyl with 1 to 4 carbon atoms; ##STR21## in an amount of from 0.1 to 10 parts by weight per 100 parts by weight of the rubber into the rubber composition.

Claim 34

A process for improving the processing safety of unvulcanized rubber compositions containing a sulphur vulcanizable rubber, at least one member of the group consisting of sulphur and sulphur donors, a vulcanization accelerator and a reinforcing rubber filler comprising the step of incorporating a triazine sulphenimide compound of the formula: ##STR20## R 1 , R 2 , R 3 and R 4 are hydrogen or alkyl with 1 to 4 carbon atoms; ##STR21## in an amount of from 0.1 to 10 parts by weight per 100 parts by weight of the rubber into the rubber composition.

Claim 35

A process for improving the processing safety of unvulcanized rubber compositions containing a sulphur vulcanizable rubber, at least one member of the group consisting of sulphur and sulphur donors, a vulcanization accelerator and at least one rubber filler selected from the group consisting of reinforcing silicas, silicates, oxides of the metals aluminum, magnesium, calcium zinc and titanium and glass fibers comprising incorporating into the rubber composition a triazine sulphenamide compound of the formula: R 1 , r 2 , r 3 and R 4 are hydrogen or alkyl with 1 to 4 carbon atoms; ##STR22## in an amount of from 0.1 to 10 parts by weight per 100 parts by weight of the rubber and a sulphur-containing silane of the formula: z - alk - 5 n -alk - z, in which Z is ##STR23## wherein R 1 is alkyl of 1 to 4 carbon atoms or phenyl, R 2 is alkoxy of 1 to 8 carbon atoms, cycloalkoxy of 5 to 8 carbon atoms, or alkylmercapto of 1 to 8 carbon atoms, alk is a divalent hydrocarbon group of 1 to 18 carbon atoms and n is a number of 2 to 6, in an amount of from 0.1 to 50 parts by weight per 100 parts by weight of the rubber.

Claim 36

A process for improving the processing safety of unvulcanized rubber compositions containing a sulphur vulcanizable rubber, at least one member of the group consisting of sulphur and sulphur donors, a vulcanization accelerator and at least one rubber filler selected from the group consisting of reinforcing silicas, silicates, oxides of the metals aluminum, magnesium, calcium zinc and titanium and glass fibers comprising incorporating into the rubber composition a triazine sulphenamide compound of the formula: R 1 , r 2 , r 3 and R 4 are hydrogen or alkyl with 1 to 4 carbon atoms; ##STR22## in an amount of from 0.1 to 10 parts by weight per 100 parts by weight of the rubber and a sulphur-containing silane of the formula: z - alk - 5 n -alk - z, in which Z is ##STR23## wherein R 1 is alkyl of 1 to 4 carbon atoms or phenyl, R 2 is alkoxy of 1 to 8 carbon atoms, cycloalkoxy of 5 to 8 carbon atoms, or alkylmercapto of 1 to 8 carbon atoms, alk is a divalent hydrocarbon group of 1 to 18 carbon atoms and n is a number of 2 to 6, in an amount of from 0.1 to 50 parts by weight per 100 parts by weight of the rubber.