DE602007010168D1 - Perfluorpolyethersilane und deren verwendung - Google Patents

Perfluorpolyethersilane und deren verwendung

Info

Publication number
DE602007010168D1
DE602007010168D1 DE602007010168T DE602007010168T DE602007010168D1 DE 602007010168 D1 DE602007010168 D1 DE 602007010168D1 DE 602007010168 T DE602007010168 T DE 602007010168T DE 602007010168 T DE602007010168 T DE 602007010168T DE 602007010168 D1 DE602007010168 D1 DE 602007010168D1
Authority
DE
Germany
Prior art keywords
perfluorpolyethersilane
perfluoropolyether silanes
novel perfluoropolyether
substrates
stain
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.)
Active
Application number
DE602007010168T
Other languages
German (de)
English (en)
Inventor
Richard M Flynn
Wayne W Fan
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 Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of DE602007010168D1 publication Critical patent/DE602007010168D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1804—Compounds having Si-O-C linkages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Polyethers (AREA)
  • Silicon Polymers (AREA)
  • Surface Treatment Of Glass (AREA)
DE602007010168T 2006-08-28 2007-08-06 Perfluorpolyethersilane und deren verwendung Active DE602007010168D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/467,612 US7294731B1 (en) 2006-08-28 2006-08-28 Perfluoropolyether silanes and use thereof
PCT/US2007/075251 WO2008027697A1 (en) 2006-08-28 2007-08-06 Perfluoropolyether silanes and use thereof

Publications (1)

Publication Number Publication Date
DE602007010168D1 true DE602007010168D1 (de) 2010-12-09

Family

ID=38658047

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007010168T Active DE602007010168D1 (de) 2006-08-28 2007-08-06 Perfluorpolyethersilane und deren verwendung

Country Status (7)

Country Link
US (1) US7294731B1 (enExample)
EP (1) EP2064220B1 (enExample)
JP (1) JP5133995B2 (enExample)
CN (1) CN101501046B (enExample)
AT (1) ATE486082T1 (enExample)
DE (1) DE602007010168D1 (enExample)
WO (1) WO2008027697A1 (enExample)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7553514B2 (en) * 2006-08-28 2009-06-30 3M Innovative Properties Company Antireflective article
JP5288731B2 (ja) * 2006-09-29 2013-09-11 富士フイルム株式会社 重合性含フッ素化合物、それを用いた反射防止膜、反射防止フィルムおよび画像表示装置
JP4884180B2 (ja) * 2006-11-21 2012-02-29 東京エレクトロン株式会社 基板処理装置および基板処理方法
CA2671755C (en) * 2006-12-07 2016-06-14 3M Innovative Properties Company Particles comprising a fluorinated siloxane and methods of making and using the same
CN101541816B (zh) * 2006-12-15 2014-03-12 3M创新有限公司 用于表面处理的具有甲硅烷侧基的含氟氨基甲酸酯化合物
WO2008076639A1 (en) * 2006-12-20 2008-06-26 3M Innovative Properties Company Fluorochemical urethane compounds having pendent silyl groups
US7891636B2 (en) * 2007-08-27 2011-02-22 3M Innovative Properties Company Silicone mold and use thereof
US20110020657A1 (en) * 2007-12-27 2011-01-27 Cheng-Chung Chang Protective coating compositions
DE102008034825A1 (de) * 2008-07-23 2010-01-28 Flooring Technologies Ltd. Verfahren zur Herstellung von Lackoberflächen mit einer verringerten Neigung zur Verschmutzung auf Gegenständen, wie Holzwerkstoffplatten
US8329830B2 (en) 2009-06-30 2012-12-11 3M Innovative Properties Company Surface treatment process and treated article
JP5404225B2 (ja) * 2009-07-15 2014-01-29 株式会社Ｌｉｘｉｌ 防汚塗料及びガラス層をもつ製品
US9523004B2 (en) 2009-11-11 2016-12-20 Essilor International Surface treatment composition, process for producing the same, and surface-treated article
WO2011059430A1 (en) * 2009-11-11 2011-05-19 Essilor International Surface treatment composition, process for producing the same, and surface-treated article
EP2516512B1 (en) 2009-12-22 2015-09-23 3M Innovative Properties Company Process for preparing shelf-stable curable polysilazanes, and polysilazanes prepared thereby
US8664323B2 (en) 2010-06-25 2014-03-04 3M Innovative Properties Company Fluorinated composition, method of coating the composition, and article thereby
WO2012024005A2 (en) * 2010-07-09 2012-02-23 Luna Innovations Incorporated Coating systems capable of forming ambiently cured highly durable hydrophobic coatings on substrates
US8973401B2 (en) 2010-08-06 2015-03-10 Corning Incorporated Coated, antimicrobial, chemically strengthened glass and method of making
US20130229378A1 (en) * 2010-11-10 2013-09-05 Suresh S. Iyer Optical device surface treatment process and smudge-resistant article produced thereby
CN103201331B (zh) * 2010-11-10 2014-12-17 3M创新有限公司 疏水性氟化涂层
KR101821225B1 (ko) 2010-11-10 2018-01-23 다우 코닝 코포레이션 표면 처리 조성물, 표면 처리 조성물의 제조 방법 및 표면-처리된 용품
EP2638117B1 (en) 2010-11-10 2015-09-23 3M Innovative Properties Company Surface treatment process, composition for use therein, and treated article
EP2500009A1 (en) 2011-03-17 2012-09-19 3M Innovative Properties Company Dental ceramic article, process of production and use thereof
CN103797071B (zh) * 2011-09-21 2016-03-16 旭硝子株式会社 含氟醚组合物、其制造方法、涂覆液及具有表面处理层的基材的制造方法
US9611399B2 (en) 2011-11-15 2017-04-04 3M Innovative Properties Company Fluorinated coatings with lubricious additive
CN109384399A (zh) * 2011-11-30 2019-02-26 康宁股份有限公司 具有光学涂层和易清洁涂层的玻璃制品的制备方法
US9957609B2 (en) * 2011-11-30 2018-05-01 Corning Incorporated Process for making of glass articles with optical and easy-to-clean coatings
EP2785661B1 (en) 2011-11-30 2020-05-06 Corning Incorporated Optical coating method and product
US10077207B2 (en) 2011-11-30 2018-09-18 Corning Incorporated Optical coating method, apparatus and product
JP5857942B2 (ja) * 2011-11-30 2016-02-10 信越化学工業株式会社 蒸着用フッ素系表面処理剤及び該表面処理剤で蒸着処理された物品
US9234105B2 (en) 2012-01-10 2016-01-12 3M Innovative Properties Company Aqueous fluorinated silane dispersions
CN104114564B (zh) * 2012-02-17 2017-06-30 旭硝子株式会社 含氟醚化合物、含氟醚组合物及涂覆液以及具有表面处理层的基材及其制造方法
EP2816045B1 (en) * 2012-02-17 2019-04-03 AGC Inc. Fluorinated ether compound, fluorinated ether composition and coating fluid, and substrate having surface-treated layer and method for its production
TWI579347B (zh) 2012-02-17 2017-04-21 Asahi Glass Co Ltd A fluorine-containing ether compound, a fluorine-containing ether composition and a coating liquid, and a substrate having a surface treatment layer and a method for producing the same (3)
JP6154829B2 (ja) * 2012-02-20 2017-06-28 スリーエム イノベイティブ プロパティズ カンパニー 疎油性コーティング
WO2013150751A1 (ja) 2012-04-02 2013-10-10 東洋ゴム工業株式会社 ケイ素化合物及びその製造方法、並びにその利用
CN103160150B (zh) * 2012-07-26 2015-07-15 北京仁创科技集团有限公司 一种硅砂复合材料作为疏水疏多元醇材料的用途
WO2014062898A1 (en) 2012-10-19 2014-04-24 The University Of North Carolina At Chapel Hill Ion conducting polymers and polymer blends for alkali metal ion batteries
CN103909699A (zh) * 2013-01-08 2014-07-09 鸿富锦精密工业（深圳）有限公司 镀膜件及其制备方法
EP2982001A2 (en) 2013-04-01 2016-02-10 The University of North Carolina At Chapel Hill Ion conducting fluoropolymer carbonates for alkali metal ion batteries
JP6168825B2 (ja) * 2013-04-11 2017-07-26 キヤノン株式会社 コーティング材料、コーティング及びその製造方法、並びにインクジェットヘッド及びその製造方法
US9512035B2 (en) 2013-06-17 2016-12-06 Corning Incorporated Antimicrobial glass articles with improved strength and methods of making and using same
CN104419237A (zh) * 2013-08-22 2015-03-18 3M创新有限公司 防腐液、防腐件及其制备方法
KR20160061348A (ko) * 2013-09-16 2016-05-31 허니웰 인터내셔날 인코포레이티드 폴리 플루오르 함유 실록산 코팅
CN105612165B (zh) * 2013-10-04 2018-05-25 3M创新有限公司 氟代烷基硅烷及其涂层
EP3060946A1 (en) 2013-10-24 2016-08-31 3M Innovative Properties Company Retroreflective articles with anti-staining properties
JP2017511785A (ja) 2014-02-13 2017-04-27 コーニング インコーポレイテッド 強度および抗菌性を高めたガラス、およびそれを製造する方法
WO2015142562A1 (en) * 2014-03-17 2015-09-24 Dow Corning Corporation Method of preparing non-aqueous emulsion, non-aqueous emulsion prepared thereby, and methods of preparing surface-treated articles
EP3119532B1 (en) 2014-03-18 2019-07-03 3M Innovative Properties Company Treated article and method of making the same
US9616459B1 (en) 2014-04-17 2017-04-11 Lockheed Martin Corporation Polymeric coatings for fortification of visible, infrared, and laser optical devices
US9982156B1 (en) 2014-04-17 2018-05-29 Lockheed Martin Corporation Transmissive surfaces and polymeric coatings therefore, for fortification of visible, infrared, and laser optical devices
US9840438B2 (en) 2014-04-25 2017-12-12 Corning Incorporated Antimicrobial article with functional coating and methods for making the antimicrobial article
DE102014008310B4 (de) 2014-05-30 2016-10-13 Ferro Gmbh Beschichtungszusammensetzung für die Herstellung einer staubabweisenden Beschichtung, Substrat mit Beschichtung, insbesondere Glas- oder Spiegeloberflächen, Herstellung der Beschichtungszusammensetzung und des beschichteten Substrats und Verwendung
WO2016032794A1 (en) * 2014-08-27 2016-03-03 3M Innovative Properties Company Novel polyfluoroalkylated alkenes and silicone compounds prepared therefrom
WO2016032738A1 (en) * 2014-08-27 2016-03-03 3M Innovative Properties Company Novel polyfluoroalkylated alkenes and silane compounds prepared therefrom
BR112017005778A2 (pt) 2014-09-22 2017-12-12 3M Innovative Properties Co componentes de motor de combustão interna com propriedades anti-incrustantes e métodos de produção dos mesmos
US10689522B2 (en) 2014-12-19 2020-06-23 Merck Patent Gmbh Fluorine compounds
US10077231B2 (en) 2015-02-03 2018-09-18 Blue Current, Inc. Functionalized fluoropolymers and electrolyte compositions
EP3353249A4 (en) 2015-09-23 2019-05-15 3M Innovative Properties Company COMPOSITION WITH SILANES AND METHOD FOR PRODUCING A TREATED ARTICLE
US10294393B2 (en) 2016-03-08 2019-05-21 The Chemours Company Fc, Llc Polysilane compound containing perfluoro(poly)ether group
JP2019511596A (ja) 2016-03-28 2019-04-25 エヌビーディー ナノテクノロジーズ， インコーポレイテッドＮｂｄ Ｎａｎｏｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． ポリマーへの添加剤としての官能化ｆ−ｐｏｓｓ材料
WO2017198545A1 (en) 2016-05-16 2017-11-23 Solvay Specialty Polymers Italy S.P.A. (per)fluoropolyether derivatives
CN109475900B (zh) * 2016-07-15 2022-09-02 日产自动车株式会社 防污结构体前体、防污结构体、表面改性组合物、及表面改性方法
CN120865691A (zh) * 2016-09-08 2025-10-31 大金工业株式会社 含有含全氟（聚）醚基的硅烷化合物的组合物
CN107915835B (zh) * 2016-10-09 2019-08-27 中昊晨光化工研究院有限公司 一种氟硅防水拒油剂及其利用一锅法进行合成的方法
CN109804276A (zh) * 2016-10-11 2019-05-24 株式会社大赛璐 抗反射材料
JP2018065946A (ja) * 2016-10-20 2018-04-26 キヤノン株式会社 コーティング用材料およびその製造方法
CN108299637A (zh) * 2017-01-12 2018-07-20 吴吉生 一种全氟聚醚硅烷化合物及其制备方法与应用
CN110662810B (zh) * 2017-05-23 2022-06-17 信越化学工业株式会社 含氟涂布剂组合物和含有该组合物的表面处理剂以及物品
WO2018220883A1 (ja) * 2017-06-02 2018-12-06 三菱電機株式会社 コーティング膜、コーティング組成物および該コーティング膜を備えた物品
DE202018102849U1 (de) 2018-05-22 2018-05-30 Zipps Skiwachse Gmbh Gleitmittel für den Gebrauch auf Gleitflächen von Wintersportgeräten
CN109124272A (zh) * 2018-07-16 2019-01-04 上海博开遮阳科技有限公司 一种低摩擦力系数的窗帘杆轨道及其制备方法
JP2020097542A (ja) * 2018-12-18 2020-06-25 Ａｇｃセイミケミカル株式会社 アルコキシシリル基含有フッ素化合物の製造方法、表面処理組成物の製造方法、および表面処理された部材の製造方法
CN109370750A (zh) * 2018-12-26 2019-02-22 合肥普庆新材料科技有限公司 一种环保型纯油性冷轧轧制油
CN110054399A (zh) * 2019-05-21 2019-07-26 邱木生 一种3d玻璃热弯成型保护油墨及其制备方法
CN110156979B (zh) * 2019-06-21 2022-03-04 东莞东阳光科研发有限公司 一种全氟聚醚烯丙基醚的除杂方法及制备方法
CN110484129B (zh) 2019-07-02 2022-01-25 昆山联滔电子有限公司 带有防护涂层的产品及其制备方法
CN112574609B (zh) * 2019-09-27 2023-04-07 新恒东薄膜材料（常州）有限公司 一种高耐磨抗指纹助剂及其制备方法和应用
US20210132266A1 (en) * 2019-11-05 2021-05-06 Facebook Technologies, Llc Fluid lens with reduced bubble formation
CN112379025B (zh) * 2020-12-11 2023-02-24 广州广电计量检测股份有限公司 一种氢氟醚溶剂的气相色谱-质谱检测方法
KR20220125834A (ko) * 2021-03-03 2022-09-15 삼성디스플레이 주식회사 코팅용 조성물, 코팅층을 포함하는 표시 장치 및 표시 장치의 제조 방법
KR102855232B1 (ko) 2021-05-20 2025-09-08 삼성디스플레이 주식회사 표시 패널 및 이를 포함하는 표시 장치
CN113583231A (zh) * 2021-07-09 2021-11-02 东华大学 一种全氟聚醚硅氧烷化合物的制备方法及抗指纹剂
JP2025124949A (ja) * 2022-05-31 2025-08-27 ユニマテック株式会社 新規ジアリル含フッ素ポリエーテル化合物およびその製造法
CN116948444B (zh) * 2023-09-20 2023-12-26 甘肃华隆芯材料科技有限公司 一种抗反射涂料组合物及其应用
CN119143997A (zh) * 2024-10-21 2024-12-17 松井新材料集团股份有限公司 一种易清洗型全氟聚醚改性硅烷化合物及其制备方法和应用

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242218A (en) 1961-03-29 1966-03-22 Du Pont Process for preparing fluorocarbon polyethers
US3574770A (en) 1968-10-24 1971-04-13 Nasa Hydroxy terminated perfluoro ethers
US3646085A (en) 1970-09-24 1972-02-29 Du Pont Perfluoroalkyletheramidoalkyltrialkoxysilanes
US3950588A (en) 1974-11-01 1976-04-13 Minnesota Mining And Manufacturing Company Coating of silanol-reactive surfaces with di-silyl poly(perfluorooxyalkylenes)
JPS60190727A (ja) * 1984-03-09 1985-09-28 Daikin Ind Ltd 含フツ素有機シラン化合物およびその製法と用途
FR2573079B1 (fr) * 1984-11-13 1987-08-14 Atochem Fluorosilanes et leur procede de preparation
JPH0623255B2 (ja) * 1988-10-05 1994-03-30 信越化学工業株式会社 パーフルオロアルキル基含有オルガノポリシロキサンの製造方法
AU632869B2 (en) 1989-12-14 1993-01-14 Minnesota Mining And Manufacturing Company Fluorocarbon-based coating compositions and articles derived therefrom
US5274159A (en) 1993-02-18 1993-12-28 Minnesota Mining And Manufacturing Company Destructable fluorinated alkoxysilane surfactants and repellent coatings derived therefrom
DE69624923T2 (de) 1995-08-11 2003-08-21 Daikin Industries, Ltd. Silizium enthaltende organische fluorpolymere und ihre verwendung
WO1997010924A1 (en) 1995-09-18 1997-03-27 Minnesota Mining And Manufacturing Company Thermoplastic lens blocking material
JP3820614B2 (ja) 1996-02-09 2006-09-13 住友化学株式会社 シラン化合物被膜の形成方法
JP3344199B2 (ja) 1996-03-21 2002-11-11 ソニー株式会社 防汚膜形成用組成物および反射防止フィルター
US5851674A (en) 1997-07-30 1998-12-22 Minnesota Mining And Manufacturing Company Antisoiling coatings for antireflective surfaces and methods of preparation
US6277485B1 (en) 1998-01-27 2001-08-21 3M Innovative Properties Company Antisoiling coatings for antireflective surfaces and methods of preparation
US6200884B1 (en) 1999-07-31 2001-03-13 Advanced Micro Devices, Inc. Method for shaping photoresist mask to improve high aspect ratio ion implantation
BR0111407B1 (pt) * 2000-06-06 2010-11-16 processo para inibição de incrustração de um substrato em um ambiente de incrustração marinha e uso de uma resina fluorada curável em composições de revestimento antiincrustração ou não-incrustração.
US6613860B1 (en) 2000-10-12 2003-09-02 3M Innovative Properties Company Compositions comprising fluorinated polyether silanes for rendering substrates oil and water repellent
FR2824821B1 (fr) 2001-05-17 2003-08-29 Essilor Int Procede de preparation d'un verre apte au debordage, verre ainsi obtenu et procede de debordage d'un tel verre
US6906115B2 (en) 2001-06-27 2005-06-14 Daikin Industries, Ltd. Surface treatment composition and preparation thereof
JP2003064348A (ja) * 2001-08-28 2003-03-05 Sony Corp 防汚性表面処理剤及び防汚性表面処理用組成物
US6716534B2 (en) * 2001-11-08 2004-04-06 3M Innovative Properties Company Coating composition comprising a fluorochemical polyether silane partial condensate and use thereof
JP4197472B2 (ja) * 2002-08-29 2008-12-17 信越化学工業株式会社 防汚性表面層を有するレンズ
TWI265304B (en) * 2002-08-29 2006-11-01 Shinetsu Chemical Co Lens with stain resistant surface layer
US6923921B2 (en) 2002-12-30 2005-08-02 3M Innovative Properties Company Fluorinated polyether compositions
US7652115B2 (en) 2003-09-08 2010-01-26 3M Innovative Properties Company Fluorinated polyether isocyanate derived silane compositions
JP4435591B2 (ja) * 2004-01-30 2010-03-17 株式会社カネカ 硬化性組成物
US6991826B2 (en) 2004-04-20 2006-01-31 3M Innovative Properties Company Antisoiling coatings for antireflective substrates
JP4711080B2 (ja) * 2006-07-25 2011-06-29 信越化学工業株式会社 被膜形成用組成物用フロロオルガノポリシロキサン樹脂の製造方法
US7553514B2 (en) * 2006-08-28 2009-06-30 3M Innovative Properties Company Antireflective article

Also Published As

Publication number Publication date
JP5133995B2 (ja) 2013-01-30
WO2008027697A1 (en) 2008-03-06
CN101501046B (zh) 2015-06-03
EP2064220B1 (en) 2010-10-27
ATE486082T1 (de) 2010-11-15
CN101501046A (zh) 2009-08-05
JP2010502784A (ja) 2010-01-28
EP2064220A1 (en) 2009-06-03
US7294731B1 (en) 2007-11-13

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