COATING FLUID FOR FORMING ELECTROCONDUCTIVE COAT.

摘要

A coating fluid for the production of electroconductive coatings (e.g. on glass or plastics) contains (a) an oxyacid salt of zirconium; (b) a conductive material; (c) water; (d) an organic solvent; (e) a stabiliser and pref. also (f) a non-precipitating silica soln. or silicon alkoxide. Pref. (a) is Zr oxychloride, oxynitrate or oxyacetate; (b) is tin oxide, indium oxide, tin oxide doped with Sb and with F or P, or indium oxide doped with Sn and F; (d) is an alcohol, ester, ether or ketone; (e) is ethylene glycol, N-methyl-2-pyrrolidone, ethylcellosolve, methlcellosolve or DMF. The silicon alkoxide is pref. SiHa(OR)b where R is alkyl, a is 0-3, b is 1-4, (a+b) is 4; or is (R'O)aSi(OR)b or (R')aSi(OR)b (R' is alkyl, others as above). Pref. the composition contains 33.3-83.3% conductive material, 0.8-65.9% Zr oxide and 0.8-65.9% Si oxide (by wt.).