CA2250429A1 - Process for producing tungsten oxide - Google Patents

Process for producing tungsten oxide

Info

Publication number
CA2250429A1
CA2250429A1 CA002250429A CA2250429A CA2250429A1 CA 2250429 A1 CA2250429 A1 CA 2250429A1 CA 002250429 A CA002250429 A CA 002250429A CA 2250429 A CA2250429 A CA 2250429A CA 2250429 A1 CA2250429 A1 CA 2250429A1
Authority
CA
Canada
Prior art keywords
tungsten oxide
producing tungsten
solution
producing
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002250429A
Other languages
French (fr)
Other versions
CA2250429C (en
Inventor
John E. Bailey
Kenton D. Budd
Tai T. Tran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/639,020 external-priority patent/US5772978A/en
Application filed by Individual filed Critical Individual
Publication of CA2250429A1 publication Critical patent/CA2250429A1/en
Application granted granted Critical
Publication of CA2250429C publication Critical patent/CA2250429C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208—Oxides, e.g. ceramics
    • C23C18/1216—Metal oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

A process for producing a tungsten oxide precursor solution that includes converting a peroxypolytungstate solution to a stable oxide polytungstate solution. The precursor solution may subsequently be transformed to tungsten oxide having electrochromic properties.
CA002250429A 1996-04-24 1997-03-19 Process for producing tungsten oxide Expired - Fee Related CA2250429C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/639,020 1996-04-24
US08/639,020 US5772978A (en) 1996-04-24 1996-04-24 Process for producing tungsten oxide
PCT/US1997/004408 WO1997039980A1 (en) 1996-04-24 1997-03-19 Process for producing tungsten oxide

Publications (2)

Publication Number Publication Date
CA2250429A1 true CA2250429A1 (en) 1997-10-30
CA2250429C CA2250429C (en) 2005-12-06

Family

ID=35519729

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002250429A Expired - Fee Related CA2250429C (en) 1996-04-24 1997-03-19 Process for producing tungsten oxide

Country Status (1)

Country Link
CA (1) CA2250429C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116354399A (en) * 2023-06-02 2023-06-30 崇义章源钨业股份有限公司 Method for preparing loose nano tungsten oxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116354399A (en) * 2023-06-02 2023-06-30 崇义章源钨业股份有限公司 Method for preparing loose nano tungsten oxide
CN116354399B (en) * 2023-06-02 2023-08-04 崇义章源钨业股份有限公司 Method for preparing loose nano tungsten oxide

Also Published As

Publication number Publication date
CA2250429C (en) 2005-12-06

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Legal Events

Date Code Title Description
EEER Examination request
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