Compositions – Electrically conductive or emissive compositions – Free metal containing
Reexamination Certificate
2007-04-20
2009-02-10
Kopec, Mark (Department: 1796)
Compositions
Electrically conductive or emissive compositions
Free metal containing
C252S514000, C241S023000
Reexamination Certificate
active
07488434
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).
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Hsiao Yung-Jen
Kuo Kuang-Ming
Tseng Nelson
Advanced Touch Optics Technology Corporation
Bacon & Thomas PLLC
Kopec Mark
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