RU2015140995A - Способы устранения дефектов в автомобильных покрытиях - Google Patents

Способы устранения дефектов в автомобильных покрытиях Download PDF

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RU2015140995A
RU2015140995A RU2015140995A RU2015140995A RU2015140995A RU 2015140995 A RU2015140995 A RU 2015140995A RU 2015140995 A RU2015140995 A RU 2015140995A RU 2015140995 A RU2015140995 A RU 2015140995A RU 2015140995 A RU2015140995 A RU 2015140995A
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ethylenically unsaturated
weight
unsaturated monomers
mixture
substrate layer
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Шанти СВАРУП
Сянлин СЮЙ
Ричард Дж. Седвари
Энтони М. ЧАССЕР
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Ппг Индастриз Огайо, Инк.
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    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/005—Repairing damaged coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/542—No clear coat specified the two layers being cured or baked together
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C08F290/067—Polyurethanes; Polyureas
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
    • C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
    • C08F299/06—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes
    • C08F299/065—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes from polyurethanes with side or terminal unsaturations
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
    • C08G18/348—Hydroxycarboxylic acids
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/671—Unsaturated compounds having only one group containing active hydrogen
    • C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
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    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Polyurethanes Or Polyureas (AREA)

Claims (28)

1. Способ устранения дефекта в многослойном покрытии, нанесенном на автотранспортное средство в конце процесса сборки, содержащем окрашенную подложку и прозрачный верхний слой покрытия, включающий:
(a) устранение дефекта, и
(b) нанесение композиции подложки на область ремонта с получением слоя подложки, где слой подложки формируют нанесением полигидразид-содержащей отверждаемой композиции на водной основе, содержащей:
(i) диспергирующую фазу, содержащую воду, и
(ii) диспергированную фазу, содержащую:
(А) полимерные частицы, полученные полимеризацией смеси ненасыщенных по этиленовому типу мономерных соединений, содержащей ненасыщенные по этиленовому типу мономеры, включающие:
(1) один или больше мульти-ненасыщенных по этиленовому типу мономеров и
(2) один или больше ненасыщенных по этиленовому типу мономеров, содержащих альдо- или кето-группы, и
(c) нанесение композиции прозрачного покровного лака на слой подложки с получением верхнего слоя покрытия, и
(d) отверждение слоя подложки и верхнего слоя покрытия одновременно при температуре от 60 до 100°C.
2. Способ по п. 1, в котором ремонт проводят на автотранспортном средстве в конце сборочного конвейера.
3. Способ по п. 1, в котором устранение дефекта проводят шлифованием.
4. Способ по п. 1, в котором слой подложки дегидратируют при температуре окружающей среды.
5. Способ по п. 1, в котором слой подложки и слой покровного лака отверждают одновременно при температуре от 60 до 100°C.
6. Способ по п. 1, в котором смесь ненасыщенных по этиленовому типу соединений включает один или больше ненасыщенных по этиленовому типу полиуретанов.
7. Способ по п. 6, в котором ненасыщенные по этиленовому типу полиуретаны получают реакцией органического полиизоцианата с полиолом, содержащим карбоксильные группы, и гидроксиалкил (мет)акрилатом, так что получаемые ненасыщенные по этиленовому типу полиуретаны не содержат NCO групп.
8. Способ по п. 1, в котором пленка полимерных частиц имеет значение Tg менее 25°C.
9. Способ по п. 1, в котором мульти-ненасыщенные по этиленовому типу мономеры присутствуют в количестве от 2 до 30 вес. % из расчета на общий вес ненасыщенных по этиленовому типу мономеров.
10. Способ по п. 1, в котором ненасыщенные по этиленовому типу мономеры, содержащие альдо- или кето-группы, присутствуют в количестве по меньшей мере 30 вес. % из расчета на общий вес ненасыщенных по этиленовому типу мономеров.
11. Способ по п. 1, в котором ненасыщенные по этиленовому типу мономеры содержат от 4 до 30 вес. % алкилового эфира (мет)акриловой кислоты, содержащего по меньшей мере 6 атомов углерода в алкильной группе; где весовые проценты рассчитывают относительно общего веса ненасыщенных по этиленовому типу мономеров.
12. Способ по п. 6 в котором ненасыщенные по этиленовому типу полиуретаны составляют от 30 до 60 вес. % от смеси ненасыщенных по этиленовому типу соединений, и ненасыщенные по этиленовому типу мономеры составляют от 40 до 70 вес. % от смеси ненасыщенных по этиленовому типу соединений; где весовые проценты рассчитываются на общий вес смесей ненасыщенных по этиленовому типу соединений.
13. Способ по п. 1, в котором полигидразид представляет собой бисгидразид дикарбоновой кислоты, содержащей от 2 до 16 атомов углерода.
14. Способ по п. 1, в котором соотношение эквивалентов гидразида к альдо- или кето-группам составляет от 0,5 до 1,5:1.
15. Способ по п. 1, в котором смесь ненасыщенных по этиленовому типу соединений содержит по меньшей мере одно соединение, содержащее карбоксильную функциональность, которое по меньшей мере частично нейтрализовано амином.
16. Способ по п. 15, в котором амин представляет собой летучий амин.
17. Способ по п. 16, который дополнительно включает (В) поликарбодиимид.
18. Способ по п. 17, в котором соотношение эквивалентов карбодиимида и карбоновой кислоты составляет от 0,5 до 1,5:1.
19. Способ по п. 1, в котором отверждаемая непигментированная композиция покрытия содержит полимер, содержащий активный водород, и полиизоцианатный отвердитель.
RU2015140995A 2013-02-28 2014-02-25 Способы устранения дефектов в автомобильных покрытиях RU2617505C2 (ru)

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US13/780,442 2013-02-28
US13/780,442 US9149835B2 (en) 2013-02-28 2013-02-28 Methods for repairing defects in automotive coatings
PCT/US2014/018275 WO2014134025A1 (en) 2013-02-28 2014-02-25 Methods for repairing defects in automotive coatings

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