Conductive paste for conductive substrate or conductive film
First Claim
1. An electrically conductive paste, comprising:
- 55 to 65 wt % by weight of flake shaped metal powder;
5 to 15 wt % by weight of plastic chain saturated polyester alkyd;
30 to 50 wt % by weight of solvent;
0.5 to 2 wt % by weight of adhesive promoter; and
0 to 5 wt % by weight of additives.
3 Assignments
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Accused Products
Abstract
Membrane switches are manufactured by electrically conductive pastes consisting of 55 to 65% by weight of metal powder in the shape of flake (silver, aluminum, copper or the alloy thereof), 35 to 60% by weight of an organic solvent at high boiling point, 5 to 15% by weight of organic thermal plastic, including mainly saturation polyester polymer, and 0.5 to 5% by weight of additives, including trietheanolamine, adhesion promoter, defoamer, leveling agent, thixotropic agent etc. The silver paste is of excellent adhesion on ITO film or ITO glass, delivers conductivity high up to 20 mΩ/□ with less than 65% by weight of silver, and passes test under the conditions (85□, 85% RH, 1000 hours).
18 Citations
29 Claims
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1. An electrically conductive paste, comprising:
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55 to 65 wt % by weight of flake shaped metal powder; 5 to 15 wt % by weight of plastic chain saturated polyester alkyd; 30 to 50 wt % by weight of solvent; 0.5 to 2 wt % by weight of adhesive promoter; and 0 to 5 wt % by weight of additives. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of making an electrically conductive paste comprising 55 to 65% by weight of flake shaped metal powder, 5 to 15% by weight of plastic chain saturated polyester alkyd, 30 to 50% by weight of solvent, 0.5 to 2% by weight of adhesive promoter, and 0 to 5% by weight of additives, the method comprising:
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heating the solvent to reach a predetermined temperature; adding the plastic chain saturated polyester alkyd and stirring until the plastic chain saturated polyester alkyd being resolved; adding the adhesive promoter and additives and stirring; adding the flake shaped metal powder, stirring the solution until a particle having a first average particle size; and grinding the particle having a first average particle size until the particle having a second average particle size;
wherein the first average particle size is larger than the second average particle size. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification