Vinylamine compounds

Abstract

Compounds which contain one or more groups of the formula (I) —CH 2 —CH(NR 1 R 2 )—  (I) where R 1 and R 2 , independently of one another, are each hydrogen, C 1-20 -alkyl, C 6-18 -aryl, C 7-20 -alkaryl, C 7-20 -aralkyl or a polyamine radical, are prepared by reductive amination of compounds which contain one or more groups of the formula (II) —CH 2 —CH(O—C(O)—R 3 )—  (II) where R 3 is hydrogen, C 1-20 -alkyl, C 6-18 -aryl, C 7-20 -alkaryl or C 7-20 -aralkyl, with amines of the formula (III) HNR 1 R 2   (III) and hydrogen.

We claim:  
     
         1 . A process for the preparation of polymers which contain six or more vinylamine building blocks of the formula (I) in the main chain  
       —CH 2 —CH(NR 1 R 2 )—  (I) 
       where 
 R 1  and R 2 , independently of one another, are each hydrogen, C 1-20 -alkyl, C 6-18 -aryl, C 7-20 -alkaryl, C 7-20 -aralkyl or a polyamine radical,  
 by reductive amination of copolymers which consist of C 2-12 -olefin building blocks and vinyl esters of C 1-12 -monocarboxylic acids as building blocks,  
 with amines of the formula (III)  
 HNR 1 R 2   (III) 
 and hydrogen.  
 
     
     
         2 . A process as claimed in  claim 1 , wherein the copolymers to be aminated are ethylene/vinyl acetate copolymers.  
     
     
         3 . A copolymer consisting of polymerized C 2-12 -olefin building blocks, vinylesters of C 1-12 -monocarboxylic acids and six or more vinylamine building blocks of the formula (I)  
       —CH 2 —CH(NR 1 R 2 )—  (I) 
       where 
 R 1  and R 2 , independently of one another, are each hydrogen, C 1-20 -alkyl, C 6-18 -aryl, C 7-20 -alkaryl, C 7-20 -aralkyl or a polyamine radical.  
 
     
     
         4 . A copolymer as claimed in  claim 3 , consisting of polymerized ethylene, vinyl acetate and vinylamine building blocks.  
     
     
         5 . The use of a copolymer as claimed in  claim 3  or  4  as an assistant in mineral oils, mineral oil distillates and combustion and power fuels, in chromatography, as an ion exchanger, in dispersions, as an emulsifier, in papermaking, in inks, membranes, adhesives, detergents, mold release agents, in wastewater treatment, for coating and imparting water repellency to surfaces, for the treatment of materials, as a process chemical in the textile industry, and as an additive in printing inks and finishes.  
     
     
         6 . The use as claimed in  claim 5 , as a flow improver, a wax-anti-settling additive or a lubricity additive, for reducing fretting, as a corrosion inhibitor and/or as an internal combustion engine intake system cleaner in mineral oil distillates.  
     
     
         7 . A concentrate containing a mineral oil, a mineral oil distillate or a combustion or power fuel and from 5 to 80% by weight, based on the total amount of the concentrate, of at least one copolymer as claimed in either of claims  3  and  4 .  
     
     
         8 . A mixture of at least one concentrate as claimed in  claim 7  and further assistants which are used according to the applications stated in  claim 6 .  
     
     
         9 . A combustion or power fuel composition containing a combustion or power fuel and from 5 to 5000 ppm by weight, based on the total amount of the combustion or power fuel composition, of a copolymer as claimed in  claim 3  or  4 , alone or as a mixture with other mineral oil assistants.  
     
     
         10 . A copolymer, obtainable by a process as claimed in  claim 1  or  2 .