CA2241059C - Procede photocatalytique pour rendre une surface hydrophile - Google Patents

Procede photocatalytique pour rendre une surface hydrophile Download PDF

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Publication number
CA2241059C
CA2241059C CA002241059A CA2241059A CA2241059C CA 2241059 C CA2241059 C CA 2241059C CA 002241059 A CA002241059 A CA 002241059A CA 2241059 A CA2241059 A CA 2241059A CA 2241059 C CA2241059 C CA 2241059C
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CA
Canada
Prior art keywords
water
substrate
acid
photocatalyst
solid
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.)
Expired - Lifetime
Application number
CA002241059A
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English (en)
Other versions
CA2241059A1 (fr
Inventor
Makoto Hayakawa
Eiichi Kojima
Keiichiro Norimoto
Mitsuyoshi Machida
Atsushi Kitamura
Toshiya Watanabe
Makoto Chikuni
Akira Fujishima
Kazuhito Hashimoto
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.)
Toto Ltd
Original Assignee
Toto Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27522792&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2241059(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Toto Ltd filed Critical Toto Ltd
Priority claimed from PCT/JP1996/003694 external-priority patent/WO1997023657A1/fr
Publication of CA2241059A1 publication Critical patent/CA2241059A1/fr
Application granted granted Critical
Publication of CA2241059C publication Critical patent/CA2241059C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

L'invention concerne un procédé pour rendre la surface d'un substrat hydrophile par photocatalyse. Un substrat est couvert avec un revêtement d'oxyde de titane photocatalytique (10) portant sur sa surface un acide solide augmentant la composante liaisons hydrogène ( gamma s<h>) de l'énergie de surface à la limite solide-liquide. L'excitation photonique du photocatalyseur augmente la composante liaisons hydrogène ( gamma s<h>) par photocatalyse, ce qui accélère l'adsorption physique de molécules d'eau atmosphériques sur les atomes d'hydrogène des groupes OH terminaux (12) liés aux atomes de titane présents sur la surface et la formation de ponts entre les groupes OH (14), par des liaisons hydrogène (16). Le résultat de l'adsorption est une couche d'eau adsorbée physiquement (18) présentant une densité élevée, formée sur la surface du revêtement photocatalytique (10), ce qui produit une surface hydrophile. Ce procédé est efficace pour la protection d'articles contre le dépôt de buée ou de salissures, ainsi que pour réaliser des articles autonettoyants.
CA002241059A 1995-12-22 1996-12-18 Procede photocatalytique pour rendre une surface hydrophile Expired - Lifetime CA2241059C (fr)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP35464995 1995-12-22
JP354649/1995 1995-12-22
JP4942096 1996-01-31
JP49420/1996 1996-01-31
JP202726/1996 1996-06-27
JP20272696 1996-06-27
JP257304/1996 1996-08-22
JP25730496 1996-08-22
JP27519396 1996-09-10
JP275193/1996 1996-09-10
PCT/JP1996/003694 WO1997023657A1 (fr) 1995-12-22 1996-12-18 Procede d'amenee de materiau de frittage a moyen de forces magnetiques

Publications (2)

Publication Number Publication Date
CA2241059A1 CA2241059A1 (fr) 1997-07-03
CA2241059C true CA2241059C (fr) 2007-03-06

Family

ID=27522792

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002241059A Expired - Lifetime CA2241059C (fr) 1995-12-22 1996-12-18 Procede photocatalytique pour rendre une surface hydrophile

Country Status (8)

Country Link
JP (2) JP2917525B2 (fr)
KR (1) KR100429933B1 (fr)
AT (1) ATE252140T1 (fr)
CA (1) CA2241059C (fr)
DE (1) DE69630394T2 (fr)
DK (1) DK0869156T3 (fr)
MY (1) MY134705A (fr)
PT (1) PT869156E (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6794065B1 (en) 1999-08-05 2004-09-21 Kabushiki Kaisha Toyota Chuo Kenkyusho Photocatalytic material and photocatalytic article
EP1297380B1 (fr) 2000-05-04 2008-11-26 Schott Donnelly LLC Procédé de fabrication d'un panneau électrochromique
US6938546B2 (en) 2002-04-26 2005-09-06 Mitsubishi Heavy Industries, Ltd. Printing press, layered formation and making method thereof, and printing plate and making method thereof
WO2006088079A1 (fr) * 2005-02-18 2006-08-24 Nippon Soda Co., Ltd. Corps composite organique-inorganique
AT505773B1 (de) * 2007-10-24 2009-04-15 Vaillant Austria Gmbh Brennstoffunabhangiges energieversorgungssystem
DE102007054848B4 (de) 2007-11-16 2018-09-27 Erlus Aktiengesellschaft Keramischer Formkörper mit einer photokatalytisch aktiven, luftreinigenden, transparenten Oberflächenbeschichtung, Verfahren zur Herstellung desselben und dessen Verwendung
WO2009110236A1 (fr) 2008-03-04 2009-09-11 株式会社 東芝 Élément hydrophile et articles hydrophiles fabriqués en l'utilisant
JP4829321B2 (ja) 2009-03-31 2011-12-07 株式会社東芝 光触媒体
KR102111006B1 (ko) * 2018-11-16 2020-05-14 한동대학교 산학협력단 고친수성 이산화티타늄 제조방법 및 이산화티타늄 공여체-수용체 상호작용 피크 분석 방법
CN109509400A (zh) * 2018-12-03 2019-03-22 国网江苏省电力有限公司 一种户外大气环境用长寿命二维码标签的制备方法
WO2020203716A1 (fr) * 2019-03-29 2020-10-08 旭化成メディカル株式会社 Membrane poreuse
CN112997773B (zh) * 2021-03-25 2022-11-22 江苏嘉仁建设工程有限公司 一种温室大棚用光照调节装置

Also Published As

Publication number Publication date
DK0869156T3 (da) 2004-02-16
MY134705A (en) 2007-12-31
PT869156E (pt) 2004-03-31
DE69630394D1 (de) 2003-11-20
KR100429933B1 (ko) 2005-04-20
CA2241059A1 (fr) 1997-07-03
KR19990076677A (ko) 1999-10-15
JPH10140046A (ja) 1998-05-26
DE69630394T2 (de) 2004-05-19
JP2917525B2 (ja) 1999-07-12
ATE252140T1 (de) 2003-11-15

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