The problem addressed by this invention is to achieve a useful and novel method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane. This problem was solved by providing a method for producing dicyanocyclohexane having a cyanation step in which dicyanocyclohexane is obtained by a cyanation reaction of cyanocyclohexane-1-carboxylic acid and/or a salt thereof with an ammonia source, and a method for producing bis(aminomethyl)cyclohexane using the dicyanocyclohexane thus produced.

A production method for producing a 1,4-cyclohexanedicarboxylic acid derivative, involves subjecting an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to heat concentration, thereby precipitating a 1,4-cyclohexanedicarboxylic acid derivative as a crystal.

A production method for producing a 1,4-cyclohexanedicarboxylic acid derivative, involves subjecting an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to heat concentration, thereby precipitating a 1,4-cyclohexanedicarboxylic acid derivative as a crystal.

A compound of the structural formula 1

##STR00001##

Also disclosed is a process for producing 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone nitrile and malononitrile to afford the intermediate 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile, and B) hydrogenating 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.

A compound of the structural formula 1

##STR00001##

Also disclosed is a process for producing 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone nitrile and malononitrile to afford the intermediate 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile, and B) hydrogenating 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.

A compound of the structural formula 1

##STR00001##

Also disclosed is a process for producing 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone nitrile and malononitrile to afford the intermediate 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile, and B) hydrogenating 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.

A diamine 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine of formula 1

##STR00001## and a process for producing 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone (IP) and malononitrile to afford the intermediate 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile, and B) hydrogenating 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.

A diamine 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine of formula 1

##STR00001## and a process for producing 2-(3,3,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone (IP) and malononitrile to afford the intermediate 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile, and B) hydrogenating 2-(3,5,5-trimethylcyclohex-2-en-1-ylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.

Crosslinked polymers and their uses in electrochemical systems, for example, as electrolyte membrane, are described. More precisely, these crosslinked polymers are formed by the crosslinking of a random copolymer based on monomers of glycidyl methacrylate or acrylate and of poly(ethylene glycol) methyl acrylate or methacrylate with a volatile polyamine crosslinking agent.

Crosslinked polymers and their uses in electrochemical systems, for example, as electrolyte membrane, are described. More precisely, these crosslinked polymers are formed by the crosslinking of a random copolymer based on monomers of glycidyl methacrylate or acrylate and of poly(ethylene glycol) methyl acrylate or methacrylate with a volatile polyamine crosslinking agent.