Aqueous binder solutions

Abstract

The present invention is directed to aqueous systems for polyamideimide, polyether imide, and/or polyamic acid binder solutions. The present invention provides stable aqueous binder solutions equivalent or superior to current aqueous binder solutions.

What is claimed is: 
     
         1 . An aqueous binder solution comprising a) water, b) polyamideimide or polyether imide, c) an amine, and d) one or more solvent; wherein the one or more solvent comprises guanidines. 
     
     
         2 . An aqueous binder solution of  claim 1  further comprising one or more of: viscosity modifiers, thinning solvent, binders, pigments, fillers, dispersing aids, surface tension modifiers, and fluoropolymers. 
     
     
         3 . The aqueous binder solution of  claim 2  wherein the thinning solvent is a diether, an alcohol, or a glycol ether. 
     
     
         4 . The aqueous binder solution of  claim 1 , wherein the solvent is selected from acetoacetamide, dimethyl acetoacetamide, n-methyl acetoacetamide, diethyl acetoacetamide, dimethyl piperidone,comprises tetramethyl guanidine, dimethyl sulfone, dl-pantothenyl, n-acetylcaprolactam, or a mixture thereof. 
     
     
         5 . The aqueous binder solution of  claim 1  wherein the c) amine and d) solvent are the same. 
     
     
         6 . The aqueous binder solution of  claim 5  wherein the c) amine and d) solvent are both tetramethyl guanidine. 
     
     
         7 . (canceled) 
     
     
         8 . (canceled)