Component with an antimicrobial surface and use thereof

Patent metadata

Field	Value
Publication number	US-9492812-B2
Application number	US-99871909-A
Country	US
Kind code	B2
Filing date	Nov 20, 2009
Priority date	Nov 24, 2008
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

The surface of a component includes metallic fractions of Ag and/or Ni, touching MnO 2 fractions which provide an antimicrobial effect. When using toxicologically safe Ni, these antimicrobial surfaces can be used in the food industry, for example. The surface can, for example, be applied by way of a coating on the component with the metallic fraction and the MnO 2 fraction applied in two layers.

First claim

The invention claimed is:

1. A component, comprising:
a component body with an antimicrobial surface, the antimicrobial surface including metallic portions touching MnO 2 portions, the metallic portions being formed from at least one of silver and nickel, and the MnO 2 portions at least partially having γ modification of MnO 2 with manganese oxide therein.

2. The component as claimed in claim 1 , wherein a structural portion of the MnO 2 in the γ modification makes up more than 50% by weight of the MnO 2 .

3. The component as claimed in claim 2 ,
wherein the component body is formed of a metal providing the metallic portions of the antimicrobial surface, and
wherein the MnO 2 portions are from an only partially covering layer of MnO 2 applied to the metal of the component body.

4. The component as claimed in claim 2 ,
wherein the component body is formed of a ceramic providing the MnO 2 portions of the antimicrobial surface, and
wherein the metallic portions are from an only partially covering layer of a metal applied to the ceramic of the component body.

5. The component as claimed in claim 2 , wherein the antimicrobial surface is formed by a coating which provides the metallic portions and the MnO 2 portions.

6. The component as claimed in claim 4 , wherein the coating comprises a metallic layer with an only partially covering layer of MnO 2 .

7. The component as claimed in claim 4 , wherein the coating comprises:
a ceramic layer providing the MnO2 portions; and
a metallic layer only partially covering the ceramic layer.

8. The component as claimed in claim 4 , wherein the coating is a ceramic providing the MnO 2 portions and in which metallic particles are embedded.

9. The component as claimed in claim 4 , wherein the coating is a metallic matrix in which particles of MnO 2 are embedded.

10. The component as claimed in claim 1 , wherein the component body comprises:
a material different from the metallic portions and from MnO 2 , and
particles, at least one of embedded in and coated on the material, providing the antimicrobial surface including the metallic portions and the MnO 2 portions.

11. The component as claimed in claim 1 , further comprising a layer formed on the component body, of a material different from the metallic portions and from MnO 2 , with particles, at least one of embedded in and coated on the material, providing the antimicrobial surface including the metallic portions and the MnO 2 portions.

12. The component as claimed in claim 1 , wherein the antimicrobial surface has low wettability.

Assignees

• Doye Christian
• Krüger Ursus
• Pyritz Uwe
• Siemens Ag

Inventors

• Doye Christian
• Krüger Ursus
• Pyritz Uwe

Classifications

• B01J37/0225

  of metal substrates · CPC title

• B01J23/688 Primary

  with manganese, technetium or rhenium · CPC title

• B01J23/8892

  Manganese · CPC title

• A01N59/16

  Heavy metals; Compounds thereof · CPC title

• A01N2300/00

  Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48 · CPC title