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US 6,599,408 B1Granted
Thick film conductor composition for use in biosensors
AssigneeE. I. Du Pont de Nemours and Company
InventorsMan-Sheung Chan, Donald W. Kuty
Life of this patent
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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.
Claims11
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.
1 more element
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.
1 more element
Dependencies are inferred from the claim text.