Transparent static dissipative coating compostitions

Abstract

A method of preparing an electrostatic dissipative composition that includes combining a conductive polymer; a crosslinkable polymer, and a crosslinking agent to form a fluidized dispersion, and providing the fluidized dispersion with a pH of about 7 to 9 to form the electrostatic discharge composition.

1 .- 41 . (canceled) 
     
     
         42 . A method of preparing an electrostatic dissipative composition, the method comprising:
 combining a conductive polymer; a crosslinkable polymer, and a crosslinking agent to form a fluidized dispersion; and   providing the fluidized dispersion with a pH of about 7 to 9 to form the electrostatic dissipative composition, wherein:
 the electrostatic dissipative composition comprises water; and 
 the electrostatic dissipative composition is free of volatile organic compounds. 
   
     
     
         43 . The method of  claim 42  wherein the conductive polymer is derived from a polythiophene. 
     
     
         44 . The method of  claim 42 , the method further comprising combining an ionic polymer with the conductive polymer. 
     
     
         45 . The method of  claim 44  wherein the ionic polymer comprises polystyrene sulfonate. 
     
     
         46 . The method of  claim 42  wherein the crosslinking agent comprises an amine. 
     
     
         47 . The method of  claim 42 , the method further comprising incorporating a water-miscible organic solvent in the fluidized dispersion. 
     
     
         48 . A method of preparing an aqueous electrostatic dissipative composition, the method comprising:
 combining a conductive polymer and water to form a conductive polymer dispersion, the conductive polymer comprising a polythiophene;   forming a carrier dispersion; and   combining the conductive polymer dispersion and the carrier dispersion to form the aqueous electrostatic dissipative composition.   
     
     
         49 . The method of  claim 48  wherein the polythiophene comprises poly(3,4-ethylene)dioxythiophene. 
     
     
         50 . The method of  claim 48 , the method further comprising incorporating a crosslinkable polymer in the aqueous electrostatic dissipative composition. 
     
     
         51 . The method of  claim 50  wherein the crosslinkable polymer comprises a blocked urethane polymer. 
     
     
         52 . The method of  claim 48  wherein the blocked urethane polymer comprises one or more carbonate groups. 
     
     
         53 . The method of  claim 48  wherein the ionic polymer comprises polystyrene sulfonate. 
     
     
         54 . An electrostatic dissipative composition, the electrostatic dissipative composition comprising:
 a conductive polymer;   a crosslinkable polymer; and   a crosslinking agent, wherein:
 the electrostatic dissipative composition has a pH of about 7 to 9; and 
 the electrostatic dissipative composition is free of volatile organic compounds. 
   
     
     
         55 . The electrostatic dissipative composition of  claim 54  wherein the conductive polymer is derived from a polythiophene. 
     
     
         56 . The electrostatic dissipative composition of  claim 54 , the composition further comprising a blend of the conductive polymer and an ionic polymer. 
     
     
         57 . The electrostatic dissipative composition of  claim 56  wherein the ionic polymer comprises polystyrene sulfonate. 
     
     
         58 . The electrostatic dissipative composition of  claim 54  wherein the crosslinking agent comprises an amine. 
     
     
         59 . The electrostatic dissipative composition of  claim 54  wherein the electrostatic dissipative composition further comprises a water-miscible organic solvent.