Compositions – Electrically conductive or emissive compositions – Elemental carbon containing
Patent
1997-11-13
1999-01-05
Kopec, Mark
Compositions
Electrically conductive or emissive compositions
Elemental carbon containing
252512, 252514, H01B 122, H01B 124
Patent
active
058558209
ABSTRACT:
The present invention is a thick film water based conductive coating composition comprising, based on total composition: (a) 5-40% wt. first aqueous dispersion of polyhydroxyether polymer grafted with at least one acrylic or methacrylic monomer wherein the dispersion is 25-40% wt. grafted polymer solids; (b) 20-80% wt. finely divided metallic electrically conductive particles selected from the group consisting of silver, copper, nickel, silver coated copper, silver coated nickel, carbon, graphite and mixtures thereof; (c) 0-20% by wt. second aqueous dispersion of an acrylic or polyurethane polymer wherein the dispersion is 25-40% wt. polymer solids; (d) 0-5% wt. water soluble polymer; and wherein all of (a), (b), (c) and (d) are dispersed in water and about 1-8% wt. co-solvent.
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patent: 5231113 (1993-07-01), Chandraratna et al.
patent: 5286415 (1994-02-01), Buckley et al.
patent: 5492653 (1996-02-01), Hochheimer et al.
patent: 5574079 (1996-11-01), Eaton et al.
Progress in Organic Coatings, vol. 9, 1981, Aqueous Emulsions, Dispersions and . . . , Dieterich, pp. 281-340 (no month).
Chan Man-Sheung
Dorfman Jay Robert
E. I. Du Pont de Nemours and Company
Kopec Mark
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