Tin oxide based conductive powders and coatings
First Claim
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1. A method for making an electroconductive powder by a process comprising:
- (1) preparing a first solution comprising an aqueous solution containing a source of tin, and a second solution comprising a source of phosphorus,(2) combining the first and second solutions,(3) adding the combined solution to water while stirring and maintaining pH at about 0 to about 7 by adding a basic solution, thereby precipitating a hydrous tin oxide; and
,(4) heating the hydrous tin oxide to a temperature sufficient to obtain the electroconductive powder.
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Abstract
A product and process are disclosed that relate to electroconductive powders based on tantalum, niobium, or phosphorus or any combination thereof doped tin oxide and coatings containing such powders. These powders can be used for making transparent coated films that are conductive and have desirable properties for a number of end uses. Some important end uses are in static dissipative fiber and films, coatings for recyclable containers, materials involved in packaging, where the presence of certain heavy metals is undesirable, transparent conductive coatings, among other uses.
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4 Claims
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1. A method for making an electroconductive powder by a process comprising:
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(1) preparing a first solution comprising an aqueous solution containing a source of tin, and a second solution comprising a source of phosphorus, (2) combining the first and second solutions, (3) adding the combined solution to water while stirring and maintaining pH at about 0 to about 7 by adding a basic solution, thereby precipitating a hydrous tin oxide; and
,(4) heating the hydrous tin oxide to a temperature sufficient to obtain the electroconductive powder. - View Dependent Claims (2, 3, 4)
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