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US 2006/0233889 A1Published application
Silver coatings and methods of manufacture
Assignee3M Innovative Properties Company
InventorsScott Burton, David Holm
Life of this patent
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Abstract
A silver composition comprising silver sulfate and a method of coating the composition on a substrate is disclosed.
Claims42
A method of making an antimicrobial article, comprising:
- preparing a composition comprising silver sulfate with the proviso that stabilizing agents are present in the composition in an amount less than 100 ppm;
- coating the silver sulfate composition on a substrate;
- and
- drying the coated substrate at a temperature that causes the silver sulfate composition to develop an initial color;
- wherein the dried silver sulfate composition is color stable.
2 more elements
An antimicrobial medical article comprising a silver sulfate composition coated on a substrate, wherein stabilizing agents are present in the antimicrobial article in an amount less than 1000 ppm and wherein the coated silver sulfate composition is color stable.
A method of making an antimicrobial article, comprising:
- preparing a composition of silver sulfate and water;
- coating the silver sulfate composition on a substrate;
- drying the coated substrate at a temperature that causes the silver sulfate composition to develop an initial color;
- and
- maintaining the dried silver sulfate composition at a relative humidity of no more than 50%;
- wherein the antimicrobial article is color stable.
3 more elements
A method of making an antimicrobial article, comprising
- preparing a composition comprising silver sulfate;
- coating the silver sulfate composition on a substrate;
- and
- drying the coated substrate at a temperature that causes the silver sulfate composition to develop an initial color;
- wherein the dried silver sulfate composition is color stable;
- and
- wherein stabilizing agents are present in the antimicrobial article in an amount less than 1000 ppm.
4 more elements
Dependencies are inferred from the claim text.