Steven Kent Walker

US Patent:

20220332967, Oct 20, 2022

Filed:

Nov 22, 2021

Appl. No.:

17/532729

Inventors:

- Austin TX, US
Steven Brett WALKER - Austin TX, US

Assignee:

ELECTRONINKS INCORPORATED - Austin TX

International Classification:

C09D 11/52
C23C 18/06
C23C 18/08
H01B 1/22
H05K 1/09
H05K 3/10

Abstract:

A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100 C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for making a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to forms the conductive structure is further provided.

US Patent:

20210395551, Dec 23, 2021

Filed:

Aug 3, 2018

Appl. No.:

16/636154

Inventors:

- Austin TX, US
Steven Brett WALKER - Austin TX, US

International Classification:

C09D 11/52
C09D 11/037
C09D 11/033
C09D 11/322
C09D 11/38
C09D 5/24
C23C 18/08

Abstract:

Disclosed herein are ink compositions for making a conductive palladium structure. For example, the ink composition can comprise a palladium salt and a complex of a complexing agent and a short chain carboxylic acid or salt thereof. In some embodiments, a second or third metal salt is included in the compositions. Also disclosed herein are methods for making and using such conductive ink compositions.

US Patent:

20210307163, Sep 30, 2021

Filed:

Aug 3, 2019

Appl. No.:

17/265626

Inventors:

- Austin TX, US
Steven Brett WALKER - Austin TX, US
Gaurav TULSYAN - Austin TX, US

International Classification:

H05K 1/03
D06P 5/30
C09D 11/30
C09D 11/52
H01B 1/22

Abstract:

This disclosure provides electrically conductive materials, including electrically conductive textile materials, such as woven or knitted fabric textiles, individual fibers, and woven fibers and yarns. The conductive materials comprise a substrate material, such as a textile or other suitable material, and a metal embedded in the substrate material, in particular where the metal is embedded into and below the surface of the material. Also provided are methods of making the electrically conductive materials.

US Patent:

20200157369, May 21, 2020

Filed:

Aug 3, 2018

Appl. No.:

16/636150

Inventors:

- Austin TX, US
Steven Brett WALKER - Austin TX, US

International Classification:

C09D 11/52
C09D 11/037
C09D 11/033
C09D 11/102
C09D 11/104
C09D 11/322
C09D 11/36

Abstract:

A particle-free gold-complex based ink is described wherein a gold carboxylate is complexed with an amine. Upon heating the solution, the gold cation catalyzes the oxidative amidation of the amine with the carboxylate to form a short chain or polymeric amide while simultaneously reducing the gold cation to metallic gold. This method is extremely versatile and allows for both the preparation of pure metallic gold films as well as polymer gold composites with unique properties.

US Patent:

20190315989, Oct 17, 2019

Filed:

May 27, 2019

Appl. No.:

16/423118

Inventors:

- Austin TX, US
Steven Brett WALKER - Austin TX, US

Assignee:

ELECTRONINKS INCORPORATED - Austin TX

International Classification:

C09D 11/52
H05K 3/10
H05K 1/09
H01B 1/22
C23C 18/06
C23C 18/08

Abstract:

A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100 C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for milking a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to form the conductive structures farther provided.

US Patent:

20170210930, Jul 27, 2017

Filed:

Apr 15, 2015

Appl. No.:

15/304801

Inventors:

- Austin TX, US
Steven Brett WALKER - Austin TX, US

International Classification:

C09D 11/52
H05K 1/09
C23C 18/08
H05K 3/10

Abstract:

A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100 C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for making a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to form the conductive structure is further provided.

US Patent:

20150299489, Oct 22, 2015

Filed:

Apr 15, 2015

Appl. No.:

14/687248

Inventors:

- Austin TX, US
Steven Brett Walker - Austin TX, US

International Classification:

C09D 11/52

Abstract:

The present invention provides an ink composition. The composition comprises a metal ion and a ligand. The ink composition is in a form of solid at a temperature of less than about 30 C. and in a form of liquid at temperature of above about 40 to about 80 C.