Method of treating nanoparticles

Patent metadata

Field	Value
Publication number	US-2018147603-A1
Application number	US-201615578311-A
Country	US
Kind code	A1
Filing date	Jun 21, 2016
Priority date	Jul 16, 2015
Publication date	May 31, 2018
Grant date	—

Abstract

The material properties of structures made with conductive nanoparticles are enhanced by radiation sintering followed by chemical sintering. The conductive nanoparticles may be applied to substrates by methods such as screen printing, inkjet, aerosol and electrospinning and then sintering the conductive nanoparticles on the substrates.

First claim

What is claimed is:

1 . A method comprising:
a) depositing conductive nanoparticles on a substrate; and b) treating the conductive nanoparticles on the substrate by radiation sintering followed by chemical sintering to form a sintered structure.

2 . The method of claim 1 , wherein the radiation sintering is chosen from photosintering and thermal sintering.

3 . The method of claim 2 , wherein the radiation sintering is photosintering.

4 . The method of claim 1 , wherein the chemical sintering is done by halide vapor or by a halide solution.

5 . The method of claim 1 , wherein the nanoparticles are deposited on the substrate by electrospinning, inkjet, aerosol, gravure printing or screen printing.

6 . The method of claim 1 , wherein the substrate is selected from polyethylene terephthalate, polycarbonate, polymethyl methacrylate, polyethylene naphthalate, polyethersulfone, cyclic olefin polymer, triacetylcellulose, polyvinyl alcohol, polyimide, polystyrene and glass.

7 . The method of claim 6 , wherein the T g of the substrate ranges from 60° C. to 170° C.

8 . The method of claim 1 , wherein the nanoparticles comprise metals, metal oxides, conductive non-metals or mixtures thereof.

9 . The method of claim 8 , wherein the metals are chosen from silver, gold, platinum, palladium, indium, rubidium, ruthenium, rhodium, osmium, iridium, aluminum, copper, cobalt, nickel, and iron.

Assignees

• Dow Global Technologies Llc

Inventors

• Renny Joseph
• De Graaf Michael A
• Bashir Mubasher A
• Claracq Jerome
• Prot Stefan J

Classifications

• B05D3/06 Primary

  by exposure to radiation (B05D3/02 takes precedence {; plasma treatment B05D3/141}) · CPC title

• C08J7/06 Primary

  with compositions not containing macromolecular substances · CPC title

• B22F1/0022

  Operations & Transport · mapped topic

• B05D1/007

  using an electrostatic field (B05D1/02 - B05D1/16 take precedence) · CPC title

• B22F9/24

  starting from liquid metal compounds, e.g. solutions · CPC title