Compositions useful to provide improved rheology and mist control to ink formulations and ink formulations containing such compositions

Abstract

The invention is ink formulations that show improved rheological and antimisting properties. The invention is particularly useful in lithographic inks including heatset, sheetfed and UV curable lithographic inks. The invention also includes novel additive that enable the preparation of inks with required viscosities that are needed to perform on high-speed printing presses with improved performance. The additive is based on reaction products of polyamines and carboxylic acids with two or more carboxylic moieties mixed or combined with tridecyl alcohol. In addition, the inventive additive is in the form of liquid and it is pourable and pumpable for ink manufacturing processes.

1 . A composition comprising: 
 a) the reaction product of (i) a carboxylic acid with at least two carboxylic moieties and (ii) a polyamine having an amine functionality of two or more; and    b) a low volatility liquid alcohol which has a water solubility of less than 10 mg/L.    
   
   
       2 . The composition of  claim 1 , wherein the carboxylic acid is a dimer fatty acid.  
   
   
       3 . The composition of  claim 2 , wherein the dimer fatty acid is selected from the group consisting of hydrogenated, partially hydrogenated and non-hydrogenated dimer acids with from about 20 to about 48 carbon atoms.  
   
   
       4 . The composition of  claim 1 , wherein the polyamine is a polyethylene polyamine.  
   
   
       5 . The composition of  claim 4 , wherein the polyamine is selected from the group consisting of ethylenediamine, diethylenetriamine, triethylenetetramine and tetraethylenepentamine.  
   
   
       6 . The composition of  claim 4 , wherein the polyamine is diethylenetriamine.  
   
   
       7 . The composition of  claim 1  wherein the low volatility liquid alcohol is tridecyl alcohol.  
   
   
       8 . The composition of  claim 1 , wherein the tridecyl alcohol has the chemical formula C 13 H 28 O.  
   
   
       9 . The composition of  claim 7 , wherein the tridecyl alcohol is isotridecanol.  
   
   
       10 . A printing ink comprising an organic ink vehicle having dispersed therein an ink coloring material and an additive comprising the composition of  claim 1 .  
   
   
       11 . The printing ink of  claim 10  wherein the additive comprises the composition of  claim 2 .  
   
   
       12 . The printing ink of  claim 10  wherein the additive comprises the composition of  claim 4 .  
   
   
       13 . The printing ink of  claim 10  wherein said additive comprises from 0.1% to 10% by weight of said printing ink.  
   
   
       14 . The printing ink of  claim 10  wherein said additive comprises from 1.0% to 3.0% by weight of said printing ink.  
   
   
       15 . A composition comprising the reaction product of a) a carboxylic acid with at least two carboxylic acid moieties, b) a polyamine having an amine functionality of two or more diluted with a tridecyl alcohol.  
   
   
       16 . A lithographic ink comprising the composition of  claim 15.