Etch-resistant inkjet inks for manufacturing conductive patterns

Abstract

A UV curable inkjet ink includes a polymerizable composition, wherein at least 80 wt % of the polymerizable composition consists of: a) 15.0 to 70.0 wt % of an acryl amide; b) 20.0 to 75.0 wt % of a polyfunctional acrylate; and c) 1.0 to 15.0 wt % of a monofunctional (meth)acrylate containing a carboxylic acid group, a phosphoric acid group, or a phosphonic acid group; with all weight percentages (wt %) based on the total weight of the polymerizable composition.

1 - 15 . (canceled) 
     
     
         16 . A UV curable inkjet ink comprising:
 a polymerizable composition, at least 80 wt % of the polymerizable composition consisting of:   15.0 to 70.0 wt % of an acryl amide;   20.0 to 75.0 wt % of a polyfunctional acrylate; and   1.0 to 15.0 wt % of a monofunctional (meth)acrylate including a carboxylic acid group, a phosphoric acid group, or a phosphonic acid group; wherein   all weight percentages (wt %) are based on a total weight of the polymerizable composition.   
     
     
         17 . The UV curable inkjet ink according to  claim 16 , wherein the acryl amide is a cyclic acryl amide. 
     
     
         18 . The UV curable inkjet ink according to  claim 17 , wherein the cyclic acryl amide is acryloyl morpholine. 
     
     
         19 . The UV curable inkjet ink according to  claim 16 , wherein at least 1.5 wt % of the monofunctional (meth)acrylate including the carboxylic acid group, the phosphoric acid group, or the phosphonic acid group is present in the polymerizable composition. 
     
     
         20 . The UV curable inkjet ink according to  claim 16 , wherein the monofunctional (meth)acrylate containing the carboxylic acid group, the phosphoric acid group, or the phosphonic acid group is selected from the group consisting of 2-carboxyethyl acrylate, 2-acryloyl ethyl succinate, and 2-hydroxyethyl methacrylate phosphate. 
     
     
         21 . The UV curable inkjet ink according to  claim 16 , wherein the polyfunctional acrylate is selected from the group consisting of dipropylene glycol diacrylate, neopentylglycol diacrylate, neopentylglycol (2× propoxylated) diacrylate, penta erythritol tetra acrylate, 1,6-hexanediol diacrylate, trimethylolpropane trimethacrylate, ethoxylated tmpta, tripropylene glycol diacrylate, ditrimethyloylpropane tetraacrylate, ethoxylated pentaerythritol tetraacrylate, and polyethyleneglycol diacrylate. 
     
     
         22 . The UV curable inkjet ink according to  claim 16 , wherein the UV curable inkjet ink includes 0 to 0.05 wt % of surfactant based on the total weight of the UV curable inkjet ink. 
     
     
         23 . An etched metal or alloy substrate printed with the UV curable inkjet ink according to  claim 16 . 
     
     
         24 . The etched metal or alloy substrate according to  claim 23 , wherein the etched metal or alloy substrate includes copper. 
     
     
         25 . The etched metal or alloy substrate according to  claim 23 , wherein the etched metal or alloy substrate is selected from the group consisting of a printed circuit board and a decorative etched metal panel. 
     
     
         26 . A method of inkjet printing comprising the steps of:
 forming a protected area on a metal surface by printing and curing a UV curable inkjet ink on the metal surface;   removing metal from an unprotected area of the metal surface by etching; and   at least partially removing the printed and cured UV curable inkjet ink from the protected area of the metal surface; wherein   the UV curable inkjet ink includes a polymerizable composition, at least 80 wt % of the polymerizable composition consisting of:   15.0 to 70.0 wt % of an acryl amide;   20.0 to 75.0 wt % of a polyfunctional acrylate; and   1.0 to 15.0 wt % of a monofunctional (meth)acrylate including a carboxylic acid group, a phosphoric acid group, or a phosphonic acid group; and   all weight percentages (wt %) are based on a total weight of the polymerizable composition.   
     
     
         27 . The method of inkjet printing according to  claim 26 , wherein the polymerizable composition includes one or more compounds selected from the group selected from acryloyl morpholine, 2-carboxyethyl acrylate, 2-hydroxyethyl methacrylate phosphate, dipropylene glycol diacrylate, pentaerythritol tetraacrylate neopentylglycol diacrylate, neopentylglycol (2× propoxylated) diacrylate, pentaerythritol tetraacrylate, 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, ethoxylated trimethylolpropane triacrylate, tripropyleneglycoldiacrylate, and 2-(2-vinyloxy-ethoxy)-ethyl acrylate. 
     
     
         28 . A method for manufacturing a conductive pattern comprising:
 the inkjet printing method according to  claim 27 .   
     
     
         29 . A method for manufacturing a decorative etched metal panel comprising:
 the inkjet printing method according to  claim 27 .