DE69429940D1 - Abriebfeste, beschlaghindernde Überzugszusammensetzung und damit beschichteter Kunststofformkörper - Google Patents

Abriebfeste, beschlaghindernde Überzugszusammensetzung und damit beschichteter Kunststofformkörper

Info

Publication number
DE69429940D1
DE69429940D1 DE69429940T DE69429940T DE69429940D1 DE 69429940 D1 DE69429940 D1 DE 69429940D1 DE 69429940 T DE69429940 T DE 69429940T DE 69429940 T DE69429940 T DE 69429940T DE 69429940 D1 DE69429940 D1 DE 69429940D1
Authority
DE
Germany
Prior art keywords
abrasion
resistant
coating composition
molded body
plastic molded
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 - Fee Related
Application number
DE69429940T
Other languages
English (en)
Other versions
DE69429940T2 (de
Inventor
Yong-Il Cho
Sung-Hoon Jang
Jung-Ok Park
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.)
LG Corp
Original Assignee
Lucky 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
Application filed by Lucky Ltd filed Critical Lucky Ltd
Application granted granted Critical
Publication of DE69429940D1 publication Critical patent/DE69429940D1/de
Publication of DE69429940T2 publication Critical patent/DE69429940T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D4/00Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06Polymerisation of acrylate or methacrylate esters on to polymers thereof
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D4/00Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31507Of polycarbonate
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31511Of epoxy ether
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31652Of asbestos
    • Y10T428/31663As siloxane, silicone or silane
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31652Of asbestos
    • Y10T428/31667Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
DE69429940T 1993-04-16 1994-04-14 Abriebfeste, beschlaghindernde Überzugszusammensetzung und damit beschichteter Kunststofformkörper Expired - Fee Related DE69429940T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930006425A KR100214288B1 (ko) 1993-04-16 1993-04-16 안개서림 방지용 내마모성 피복조성물 및 이를 도포한 합성수지 성형품

Publications (2)

Publication Number Publication Date
DE69429940D1 true DE69429940D1 (de) 2002-04-04
DE69429940T2 DE69429940T2 (de) 2002-10-31

Family

ID=19354059

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69429940T Expired - Fee Related DE69429940T2 (de) 1993-04-16 1994-04-14 Abriebfeste, beschlaghindernde Überzugszusammensetzung und damit beschichteter Kunststofformkörper

Country Status (7)

Country Link
US (2) US5674941A (de)
EP (1) EP0620255B1 (de)
JP (1) JP3227507B2 (de)
KR (1) KR100214288B1 (de)
CN (1) CN1040015C (de)
DE (1) DE69429940T2 (de)
TW (1) TW314543B (de)

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500241A1 (de) * 1995-01-05 1996-07-11 Thera Ges Fuer Patente Radikalisch polymerisierbare Zubereitungen und ihre Verwendung
JP3351666B2 (ja) * 1995-10-20 2002-12-03 株式会社中戸研究所 防曇性反射防止膜、光学部品、及び防曇性反射防止膜の製造方法
JPH09323392A (ja) * 1996-06-05 1997-12-16 Teijin Ltd シリコーン易接着性フイルム及びその製造法
GB9624881D0 (en) * 1996-11-29 1997-01-15 Courtaulds Coatings Holdings Coating compositions
US6159537A (en) * 1997-08-01 2000-12-12 3M Innovative Properties Company Method of making a retroreflective article that has a binder layer containing an epoxy resin and silicone crosslinked polymer
US6150350A (en) * 1997-09-15 2000-11-21 Hoffman-La Roche Inc. Antimicrobial compositions
AU737281B2 (en) * 1997-10-15 2001-08-16 Yazaki Corporation Transparent substrate bearing an anti-stain, hydrophobic coating, and process for making it
US6395331B1 (en) * 1997-10-28 2002-05-28 Yazaki Corporation Transparent substrate bearing an anti-stain, hydrophobic coating, and process for making it
US6281321B1 (en) 1997-11-27 2001-08-28 Akzo Nobel N.V. Coating compositions
US6352758B1 (en) 1998-05-04 2002-03-05 3M Innovative Properties Company Patterned article having alternating hydrophilic and hydrophobic surface regions
FR2787800B1 (fr) * 1998-12-23 2001-01-26 Atochem Elf Sa Procede de fabrication d'une composition organosoluble de resine (meth)acrylique, et utilisation de cette composition comme liant des peintures marines antisalissures
JP3648183B2 (ja) * 2001-08-29 2005-05-18 聡 澤村 透明シリコーン系被膜形成組成物及びその硬化方法。
US7410691B2 (en) * 2001-12-27 2008-08-12 Ppg Industries Ohio, Inc. Photochromic optical article
US7452611B2 (en) * 2001-12-27 2008-11-18 Transitions Optical, Inc. Photochromic optical article
US6911263B2 (en) * 2002-01-30 2005-06-28 Awi Licensing Company PET wear layer/sol gel top coat layer composites
US6762260B2 (en) * 2002-03-05 2004-07-13 Dow Global Technologies Inc. Organoborane amine complex polymerization initiators and polymerizable compositions
JP4195236B2 (ja) * 2002-03-26 2008-12-10 日本ウェーブロック株式会社 金属調成形物成形用金属調加飾シート及びその製造方法、並びに、金属調成形物成形用金属調加飾シート中間材
AU2003255957A1 (en) * 2002-09-06 2004-03-29 Koninklijke Philips Electronics N.V. Compound for screen-printing, screen-printed layer and substrate provided with such layer
KR100564565B1 (ko) * 2002-11-14 2006-03-28 삼성전자주식회사 실리콘을 함유하는 폴리머 및 이를 포함하는 네가티브형레지스트 조성물과 이들을 이용한 반도체 소자의 패턴형성 방법
US6777512B1 (en) * 2003-02-28 2004-08-17 Dow Global Technologies Inc. Amine organoborane complex initiated polymerizable compositions containing siloxane polymerizable components
CA2531694A1 (en) * 2003-06-09 2004-12-09 Dow Global Technologies Inc. Stabilized organoborane polymerization initiators and polymerizable compositions
CN1321164C (zh) * 2003-06-20 2007-06-13 上海小糸车灯有限公司 亲水性高分子防雾涂料及其制备方法
KR101111420B1 (ko) 2003-10-03 2012-02-17 헴펠 에이/에스 두 가지 유형 이상의 관능성 폴리실록산 화합물을 포함하는타이 코트 조성물 및 상기 조성물을 이용하여 기판상에코팅을 형성시키는 방법
CN100519681C (zh) * 2003-11-28 2009-07-29 精工爱普生株式会社 防雾处理液及其制造方法、防雾性物品及其制造方法
US7703456B2 (en) 2003-12-18 2010-04-27 Kimberly-Clark Worldwide, Inc. Facemasks containing an anti-fog / anti-glare composition
BRPI0417298A (pt) * 2003-12-22 2007-03-13 Dow Global Technologies Inc composição polimerizável de duas partes, métodos de polimerização, para ligar dois ou mais substratos entre si, para modificar a superfìcie de um polìmero de baixa energia superficial e para revestir um substrato, composição de revestimento e laminado
US8501886B2 (en) * 2003-12-22 2013-08-06 Dow Global Technologies Llc Accelerated organoborane amine complex initiated polymerizable compositions
US20050196626A1 (en) * 2004-03-04 2005-09-08 Knox Carol L. Photochromic optical article
US7189456B2 (en) * 2004-03-04 2007-03-13 Transitions Optical, Inc. Photochromic optical article
US7811480B2 (en) * 2004-03-04 2010-10-12 Transitions Optical, Inc. Photochromic optical article
US20050196616A1 (en) * 2004-03-04 2005-09-08 Stewart Kevin J. Photochromic optical article
US7261843B2 (en) * 2004-03-04 2007-08-28 Transitions Optical, Inc. Photochromic optical article
US7504156B2 (en) 2004-04-15 2009-03-17 Avery Dennison Corporation Dew resistant coatings
NO322724B1 (no) 2004-04-15 2006-12-04 Sinvent As Fremgangsmåte til fremstilling av polyforgrenet organisk/uorganisk hybridpolymer
US7887903B2 (en) * 2004-04-20 2011-02-15 Kureha Corporation Antifog laminated film
EP1783185B1 (de) * 2004-08-26 2009-11-11 Idemitsu Kosan Co., Ltd. Beschichtungszusammensetzung und harzmehrschichtkörper
JP5096924B2 (ja) * 2004-12-21 2012-12-12 ミツビシ ポリエステル フィルム インク 過酸化物系硬化剤を使用したインライン法により熱硬化可能な塗布
BRPI0617591A2 (pt) * 2005-10-07 2011-08-02 Dow Global Technologies Inc sistemas para iniciar polimerização via radical livre, composição polimerizável de duas partes, método de polimerização, método para ligar dois ou mais substratos entre si, método para modificar a superfìcie de um polìmero de baixa energia superficial, método para revestir um substrato, composição de revestimento e laminado
DE102005049141A1 (de) * 2005-10-14 2007-04-19 Klöckner Pentaplast GmbH & Co. KG Beschichtungsgemisch, das durch Strahlung vernetzbar ist, Kunststoff-Folie und Verfahren zum Beschichten einer Kunststoff-Folie mit einem Beschichtungsgemisch
JP4978828B2 (ja) * 2006-06-12 2012-07-18 Toto株式会社 防曇性コーティング組成物およびそれを用いた防曇性被膜の製造方法
DE102006044310A1 (de) * 2006-09-18 2008-03-27 Nano-X Gmbh Silanbeschichtungsmaterial und Verfahren zur Herstellung eines Silanbeschichtungsmaterials
DE102007020404A1 (de) * 2006-09-18 2008-10-30 Nano-X Gmbh Verfahren zur Herstellung eines Beschichtungsmaterials
US7524907B2 (en) * 2006-10-12 2009-04-28 Dow Global Technologies, Inc. Accelerated organoborane initiated polymerizable compositions
US20080103274A1 (en) * 2006-10-12 2008-05-01 Jialanella Gary L Accelerated organoborane initiated polymerizable compositions
JP5337394B2 (ja) * 2007-05-15 2013-11-06 富士フイルム株式会社 親水性コーティング組成物及びこれを用いた親水性部材
JP2009256568A (ja) * 2007-08-17 2009-11-05 Fujifilm Corp 親水性膜形成用組成物、スプレー用組成物およびこれを用いた親水性部材
JP5469837B2 (ja) * 2007-09-12 2014-04-16 富士フイルム株式会社 親水性組成物
JP2009256564A (ja) * 2007-09-26 2009-11-05 Fujifilm Corp 親水性膜形成用組成物および親水性部材
JP5427382B2 (ja) * 2008-03-25 2014-02-26 富士フイルム株式会社 親水性部材、フィン材、アルミニウム製フィン材、熱交換器およびエアコン
CN102108220B (zh) * 2010-10-29 2013-04-10 陈国坚 一种有机硅防水剂及其制备方法
CN102051101B (zh) * 2010-11-18 2012-07-04 浙江大学 一种常温固化防污减阻水凝胶软涂层的制备方法
DE102012009691B4 (de) 2012-05-15 2021-12-09 Carl Zeiss Vision International Gmbh Antifog-Beschichtung auf einer Optikkomponente, Optikkomponente mit dieser Antifog-Beschichtung sowie Verfahren zur Herstellung dieser Antifog-Beschichtung
CN102649832B (zh) * 2012-05-17 2013-10-23 陕西科技大学 非离子型疏水缔合聚丙烯酰胺的制备方法
CN102649830B (zh) * 2012-05-17 2013-11-27 陕西科技大学 一种阳离子有机硅改性聚丙烯酰胺的制备方法
US9834699B2 (en) * 2012-06-19 2017-12-05 Watever Inc. Coating composition
WO2014152428A1 (en) * 2013-03-15 2014-09-25 Curatolo Benedict S Dual curable composition
CN103627317A (zh) * 2013-12-07 2014-03-12 北京顺缘天和新材料技术有限公司 一种省工型防腐涂料及其制备方法
CN104529185B (zh) * 2015-01-14 2017-05-03 湖南松井新材料有限公司 防雾涂层及该涂层的制备方法
LU92802B1 (en) * 2015-08-19 2017-03-01 Luxembourg Patent Co Sol-gel formulations enhancing corrosion resistance and lubrication properties of pressure equipment
EP3824033A1 (de) * 2018-07-19 2021-05-26 Dow Global Technologies, LLC Witterungsbeständige und dauerhafte beschichtungszusammensetzungen
TWI731537B (zh) * 2019-12-31 2021-06-21 財團法人工業技術研究院 底漆組合物及積層板
US11459482B2 (en) * 2020-06-19 2022-10-04 Pall Corporation Icephobic coating and coated articles
KR20230093895A (ko) * 2021-12-20 2023-06-27 주식회사 케이씨텍 유무기 하이브리드 조성물용 표면처리제

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609070B2 (ja) * 1974-08-21 1985-03-07 日本原子力研究所 熱硬化性樹脂組成物の製法
JPS54119599A (en) * 1978-03-10 1979-09-17 Japan Atom Energy Res Inst Transparent thermosetting resin composition
US4243767A (en) * 1978-11-16 1981-01-06 Union Carbide Corporation Ambient temperature curable hydroxyl containing polymer/silicon compositions
FR2483448B1 (fr) * 1980-05-29 1985-12-20 Nippon Sheet Glass Co Ltd Composition de revetement antibuee, article faconne revetu de cette composition et procede de preparation de cet article
US4348462A (en) * 1980-07-11 1982-09-07 General Electric Company Abrasion resistant ultraviolet light curable hard coating compositions
JPH0627196B2 (ja) * 1984-03-12 1994-04-13 大日本印刷株式会社 放射線硬化性有機珪素化合物の製造法
US4603068A (en) * 1984-06-08 1986-07-29 Harte Woodworking Limited Display panel and a display panel system
JPS63215704A (ja) * 1987-03-04 1988-09-08 Nippon Oil Co Ltd 硬化性導電性組成物
DE69004776T2 (de) * 1989-10-18 1994-06-09 Dow Corning Keine flüchtigen organischen Verbindungen enthaltende strahlungshärtbare Silikonüberzüge.

Also Published As

Publication number Publication date
JPH06340841A (ja) 1994-12-13
CN1098429A (zh) 1995-02-08
US5674941A (en) 1997-10-07
DE69429940T2 (de) 2002-10-31
JP3227507B2 (ja) 2001-11-12
TW314543B (de) 1997-09-01
US5679458A (en) 1997-10-21
KR100214288B1 (ko) 1999-08-02
EP0620255A1 (de) 1994-10-19
CN1040015C (zh) 1998-09-30
EP0620255B1 (de) 2002-02-27

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