C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/24 (2006.01) B05D 3/02 (2006.01) B05D 7/14 (2006.01) C09D 163/00 (2006.01) C09D 177/00 (2006.01)
Patent
CA 2045942
22 FA-0458 TITLE CONDUCTIVE EPOXYPOLYAMIDE COATING COMPOSITION ABSTRACT A conductive coating composition containing a binder and pigment in a pigment to binder weight ratio of about 15:100 to 100:100; wherein the binder contains (A) a multifunctional amine, a polyamide resin, polyamidoamine resin or any mixtures thereof; and (B) a multifunctional epoxy resin; wherein the electrically conductive pigment is a silica which is either amorphous silica, a silica containing material or a silica coated pigment, the silica is in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from about 1-30% by weight of the tin oxide and the composition forms a coating on a substrate that has a surface conductivity of at least 100 Ransburg units. The coating can be used on metal or plastic substrates or previously coated substrates of either plastic or metal to render the substrate conductive and easily grounded for electrostatic spraying. 22
Mirabeau Mary N.
Rohrbacher Frank
E.i. Du Pont de Nemours And Company
Sim & Mcburney
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