Thick film conductor composition for use in biosensors
First Claim
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1. A conductor composition for use in electrochemical sensor applications, comprising, based on solids:
- (a) 0.1-5% wt. Conductive metal particles selected from the group consisting of finely divided powders of platinum group metals and mixtures thereof;
(b) 62-85% wt. of graphite conductive filler having a particle diameter size of 1-30 microns; and
(c) 14-35% wt. of a thermoplastic polymer.
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Abstract
The invention is directed to polymer thick film conductor compositions comprising conductive metal particles selected from the group consisting of finely divided powders of platinum group metals and mixtures thereof or metallized graphite particles; in combination with a thermoplastic polymer and optionally, graphite conductive filler.
41 Citations
11 Claims
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1. A conductor composition for use in electrochemical sensor applications, comprising, based on solids:
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(a) 0.1-5% wt. Conductive metal particles selected from the group consisting of finely divided powders of platinum group metals and mixtures thereof;
(b) 62-85% wt. of graphite conductive filler having a particle diameter size of 1-30 microns; and
(c) 14-35% wt. of a thermoplastic polymer. - View Dependent Claims (3, 5, 7, 8, 9, 10)
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2. A conductor composition for use in electrochemical sensor applications, comprising, based on solids in the composition:
- metallized graphite particles consisting of platinum group metal particles and mixtures thereof;
deposited on support particles selected from graphite, surface modified graphite and mixtures thereof;
wherein the platinum group metal particles comprise 0.5-5% wt. and wherein the support particles and any optional graphite conductive filler, said support particles and optional graphite conductive filler having a particle diameter size of 1-30 microns, comprise 62-85% wt.; and
14-35% wt. thermoplastic polymer. - View Dependent Claims (4, 6, 11)
- metallized graphite particles consisting of platinum group metal particles and mixtures thereof;
Specification