Title: Rapidly curable electrically conductive clear coatings

Abstract

Rapidly curable electrically conductive clear coatings are applied to substrates. The electrically conductive clear coating includes to clear layer having a resinous binder with ultrafine non-stoichiometric tungsten oxide particles dispersed therein. The clear coating may be rapidly cured by subjecting the coating to infrared radiation that heats the tungsten oxide particles and surrounding resinous binder. Localized heating increases the temperature of the coating to thereby thermally cure the coating, while avoiding unwanted heating of the underlying substrate.

Inventors:

Bowman, Mark P.; Anderson, Lawrence G.; Post, Gordon L.

Issue Date:

2018-01-16

Research Org.:

PPG industries Ohio, Inc., Cleveland, OH (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1417321

Patent Number(s):

9870842

Application Number:

13/915,795

Assignee:

PPG industries Ohio, Inc. (Cleveland, OH)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL

B05D3/0263 - {with IR heaters}
B05D7/02 - to macromolecular substances, e.g. rubber

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G41/02 - Oxides

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2004/54 - Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
C01P2004/62 - Submicrometer sized, i.e. from 0.1-1 micrometer

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP

C08J2369/00 - Characterised by the use of polycarbonates
C08J2400/24 - Thermosetting resins
C08J2475/04 - Polyurethanes
C08J7/042 - {with two or more layers, where at least one layer of a composition contains a polymer binder}
C08J7/0427 - {with only one layer of a composition containing a polymer binder
C08J7/044 - Forming conductive coatings

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients

C08K2003/2258 - {of tungsten}
C08K3/22 - of metals

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

C08L75/00 - Compositions of polyureas or polyurethanes

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

C09D5/24 - Electrically-conducting paints {
C09D7/61 - inorganic
C09D7/68 - {Particle size between 100-1000 nm}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES

H01B1/08 - oxides
H01B1/20 - Conductive material dispersed in non-conductive organic material {

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B3/02 - Details

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T428/25 - Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
Y10T428/31507 - Of polycarbonate
Y10T428/31609 - Particulate metal or metal compound-containing

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DOE Contract Number:  

RES100058

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Jun 12

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE