| abstract |
The present invention comprises the following components (a), (b), (c) and (d) in the following weight percents, respectively, based on the total weight of the composition, all of which are water and about 1-8 weight percent of crude A conductive thick film coating composition based on water, dispersed in a medium:n n n (a) 5-40% by weight of a first aqueous dispersion of polyhydroxyether polymer grafted with one or more acrylic or methacryl monomers (grafted polymer solids content in this dispersion is 25-40% by weight);n n n (b) 20-80% by weight of electrically conductive fine metal particles selected from the group consisting of silver, copper, nickel, silver coated copper, silver coated nickel, carbon, graphite and mixtures thereof;n n n (c) 0-20% by weight of a second aqueous dispersion of acrylic or polyurethane polymer (polymer solids content in this dispersion is 25-40% by weight);n n n (d) 0-5% by weight of water soluble polymer. |