Method for producing patterned metallic coatings

• US 10,323,324 B2
• Filed: 12/04/2014
• Issued: 06/18/2019
• Est. Priority Date: 12/19/2013
• Status: Active Grant

• Current Assignee: Leibniz-Institut für Neue Materialien gGmbH (INM)
• Original Assignee: Leibniz-Institut für Neue Materialien gGmbH (INM)
• Inventors: de Oliveira, Peter William, Dorr, Tobias, Moh, Karsten
• Primary Examiner(s): Fletcher, III, William P
• Application Number:
  US15/101,947
• Publication Number:
  US 20160305016A1
• Time in Patent Office: 1,657 Days
• Field of Search: 427333, 427337
• CPC Class Codes: B05D 1/005 Spin coating
• CPC Class Codes: B05D 1/02 performed by spraying
• CPC Class Codes: B05D 1/18 performed by dipping
• CPC Class Codes: B05D 1/28 performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
• CPC Class Codes: B05D 3/002 Pretreatement
• CPC Class Codes: B05D 3/0254 After-treatment
• CPC Class Codes: B05D 3/065 After-treatment
• CPC Class Codes: B05D 3/10 by other chemical means
• CPC Class Codes: C09D 5/24 Electrically-conducting paints conductive materials H01B1/00
• CPC Class Codes: C23C 16/06 characterised by the deposition of metallic material
• CPC Class Codes: C23C 18/02 by thermal decomposition
• CPC Class Codes: C23C 18/04 Pretreatment of the material to be coated C23C18/06 takes precedence
• CPC Class Codes: C23C 18/08 characterised by the deposition of metallic material
• CPC Class Codes: C23C 18/143 Radiation by light, e.g. photolysis or pyrolysis
• CPC Class Codes: C23C 18/16 by reduction or substitution, e.g. electroless plating C23C18/54 takes precedence
• CPC Class Codes: C23C 18/1601 Process or apparatus
• CPC Class Codes: C23C 18/1603 coating on selected surface areas
• CPC Class Codes: C23C 18/1607 by direct patterning
• CPC Class Codes: C23C 18/1608 from pretreatment step, i.e. selective pre-treatment
• CPC Class Codes: C23C 18/1633 Process of electroless plating
• CPC Class Codes: C23C 18/1655 : Process features
• CPC Class Codes: C23C 18/1658 : with two steps starting with metal deposition followed by addition of reducing agent
• CPC Class Codes: C23C 18/166 : with two steps starting with addition of reducing agent followed by metal deposition
• CPC Class Codes: C23C 18/1662 : Use of incorporated material in the solution or dispersion, e.g. particles, whiskers, wires
• CPC Class Codes: C23C 18/1667 : Radiant energy, e.g. laser
• CPC Class Codes: C23C 18/31 : Coating with metals
• CPC Class Codes: C23C 18/40 : using reducing agents
• CPC Class Codes: C23C 18/44 : using reducing agents

Abstract

A method for producing patterned metallic coatings includes an initiator composition having at least one active substance being added to a substrate. A precursor composition including at least one precursor compound for a metallic layer is applied to the initiator composition coating. A metallic layer is then deposited by the active substance. At least one composition is applied as an emulsion in order to obtain a patterning of the resultant metallic layer.

Claims

1. A method for producing structured metallic coatings, comprising the following steps:

a) application of an initiator composition comprising at least one active substance to a substrate, wherein the initiator composition comprises a Pickering emulsion;

b) application of a precursor composition comprising at least one precursor compound for a metal layer to the substrate; and

c) deposition of a metal layer of the precursor composition by the active substance of the initiator composition;

wherein at least one of the compositions in step a) and/or step b) comprises an emulsion.

2. The method as claimed in claim 1, the active substance comprises reducing groups or precursors thereof or a photo catalytically active inorganic substance.

3. The method as claimed in claim 1, wherein the active substance comprises ZnO or TiO₂.

4. The method as claimed in claim 3, wherein the active substance comprises nanoscale particles of ZnO or TiO₂.

5. The method as claimed in claim 4, wherein the particles are surface-modified.

6. The method as claimed in claim 1, wherein a content of nanoparticles in the initiator composition is more than 0.1% by weight.

7. The method as claimed in claim 1, further comprising a drying carried out between step a) and step b).