WO2003025076A1 - Procede pour la production d'une peinture multicouche sur une carrosserie de vehicule et materiau de revetement - Google Patents

Procede pour la production d'une peinture multicouche sur une carrosserie de vehicule et materiau de revetement Download PDF

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Publication number
WO2003025076A1
WO2003025076A1 PCT/EP2002/009862 EP0209862W WO03025076A1 WO 2003025076 A1 WO2003025076 A1 WO 2003025076A1 EP 0209862 W EP0209862 W EP 0209862W WO 03025076 A1 WO03025076 A1 WO 03025076A1
Authority
WO
WIPO (PCT)
Prior art keywords
filler
resistant
basecoat
layer
color
Prior art date
Application number
PCT/EP2002/009862
Other languages
German (de)
English (en)
Inventor
Simon Meier
Wolfgang Dietz
Michael Schneider
Werner Eichinger
Original Assignee
Audi Ag
Hemmelrath Lackfabrik Gmbh
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 Audi Ag, Hemmelrath Lackfabrik Gmbh filed Critical Audi Ag
Publication of WO2003025076A1 publication Critical patent/WO2003025076A1/fr

Links

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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • 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
    • B05D7/56—Three layers or more
    • B05D7/57—Three layers or more the last layer being a clear coat

Definitions

  • the invention relates to a method for producing a multilayer coating of a vehicle body according to the preamble of claim 1 and a coating material according to the preamble of claim 2.
  • multi-layer coating of vehicle bodies is carried out, in which aqueous coating compositions are also used to an increasing extent.
  • at least one filler layer is applied to a primed metal surface, to which a pigmented basecoat and then usually a clearcoat are then applied.
  • the body-in-white comes into the paint shop, its surface is covered with a wafer-thin oil film and remnants of drawing fat that is sprayed onto the metal sheets before deep-drawing.
  • the bodies are first degreased in a spray and full immersion zone.
  • the cleaned bodies are given a zinc-phosphate coating, which acts as corrosion protection and adhesion promoter for the subsequent primer.
  • the zinc phosphate layer is rinsed and compacted in a passivation zone.
  • the underbody and the wheel arches are coated with plastic, which increases the mechanical resistance and long-term protection of the underbody.
  • the materials used for this are pre-gelled in a dryer and the final drying takes place in the further processing steps.
  • an elastic filler primer is applied, which is applied electrostatically on the inside of the body using conventional guns and on the outside of the body. After application, the bodies pass through a drying oven at approx. 160 ° C.
  • This filler primer has the task of filling unevenness in the substrate and ensuring good adhesion to both the substrate and the next layer. It also protects against stone chips.
  • the first top coat consists of a color-imparting basecoat, which is applied using conventional guns in the interior of the body and then electrostatically (60 - 70% of the amount of paint) on the outside of the body and in a second step (30 - 40%) the amount of paint) is painted with conventional guns.
  • electrostatically 60 - 70% of the amount of paint
  • second step (30 - 40%) the amount of paint
  • the second top coat consists of a transparent clear coat. This is usually applied inside the body with conventional pistols and applied outside with electrostatic atomizers. The bodies are then burned in at approx. 140 ° C.
  • the finished painted bodies are then subjected to a wax flood process.
  • the cavities are preserved at around 120 ° C with hot wax.
  • the painting process is finished with this further increase in corrosion protection.
  • the filler primer and the basecoat layer are applied in the same material with a color-imparting, light-resistant basecoat filler in only one layer, which fulfills both the filler function and the function of the basecoat.
  • the basecoat filler consists of the following components with the following proportions in percentages by weight:
  • the object of the invention is achieved with the features of claim 2, wherein the coating material as a color-imparting, light-resistant basecoat filler consists of the above-mentioned components with the stated proportions in percentages by weight.
  • the basecoat filler advantageously has good filling properties to smooth out unevenness in the substrate, good stone chip protection properties thanks to PU components and is also UV-resistant. Metallic flakes can be used to achieve metallic effects.
  • the color-imparting basecoat in the topcoat can advantageously be saved by the colored water filler according to the invention. This results in further advantages of a reduction in waste water and paint sludge, cost advantages due to the lower amount of paint per body, a reduction in application machines, lower emissions per m 2 of body surface and a reduction in color change costs.
  • the basecoat filler already has the desired color of the exterior paint, the previously known basecoat application according to the prior art can be dispensed with.
  • a two-stage basecoat application was previously known, which can be reduced to only one paint application using the basecoat filler according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé servant à produire une peinture multicouche sur une carrosserie de véhicule, ainsi qu'un matériau de revêtement. Le matériau de revêtement selon l'invention est une matière de charge de peinture d'apprêt chromophore et photostable qui sert à produire une couche ayant une fonction de charge et de peinture d'apprêt et qui est composée des constituants suivants en pourcentages en poids : 6 à 20 % de liant polyuréthanne résistant aux UV ; 2 à 10 % de liant polyester résistant aux UV ; 0 à 5 % de liant réticulant résistant aux UV ; 1 à 30 % de pigments et substances à effet spécifiques à la nuance ; 0 à 20 % de charges spécifiques à la nuance ; 0 à 8 % d'additifs ; 0 à 15 % de cosolvants ; 20 à 65 % d'eau. Il est ainsi possible de produire, en une seule couche et avec un seul matériau, un fond de charge et une peinture d'apprêt de sorte qu'on peut renoncer à l'application distincte, jusqu'ici nécessaire, d'une couche de peinture d'apprêt.
PCT/EP2002/009862 2001-09-14 2002-09-04 Procede pour la production d'une peinture multicouche sur une carrosserie de vehicule et materiau de revetement WO2003025076A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145344.2 2001-09-14
DE2001145344 DE10145344A1 (de) 2001-09-14 2001-09-14 Verfahren zur Herstellung einer mehrschichtigen Lackierung einer Fahrzeugkarosserie und Beschichtungsmaterial

Publications (1)

Publication Number Publication Date
WO2003025076A1 true WO2003025076A1 (fr) 2003-03-27

Family

ID=7699035

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/009862 WO2003025076A1 (fr) 2001-09-14 2002-09-04 Procede pour la production d'une peinture multicouche sur une carrosserie de vehicule et materiau de revetement

Country Status (2)

Country Link
DE (1) DE10145344A1 (fr)
WO (1) WO2003025076A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013174894A1 (fr) 2012-05-24 2013-11-28 Basf Se Compositions aqueuses de liants
CN104087149A (zh) * 2014-07-21 2014-10-08 段宝荣 一种耐光性水性聚氨酯涂料的制备方法
CN105602429A (zh) * 2016-02-23 2016-05-25 广州市迪孚卡乐进出口贸易有限公司 一种皮革边油

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0548727A2 (fr) * 1991-12-21 1993-06-30 Hoechst Aktiengesellschaft Liant autoréticulable, diluable dans l'eau, à modification uréthane, à groupes hydroxyle et compositions le contenant
EP0583728A1 (fr) * 1992-08-19 1994-02-23 Hoechst Aktiengesellschaft Composition de revêtement à deux composants diluables à l'eau
DE19837063A1 (de) * 1998-08-17 2000-02-24 Bayer Ag Verwendung einer wäßrigen Bindemittelkombination zur Herstellung von physikalisch trocknenden Überzügen
US6319981B1 (en) * 1991-10-29 2001-11-20 Bayer Aktiengesellschaft Coating compounds, a process for their production and their use for the production of coatings

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936288A1 (de) * 1989-11-01 1991-05-02 Bayer Ag In wasser dispergierbare bindemittelkombinationen, ein verfahren zur herstellung eines einbrennfuellers und dessen verwendung
US5379947A (en) * 1993-11-09 1995-01-10 Basf Corporation Process for producing a powder coating composition
DE19757080A1 (de) * 1997-12-20 1999-06-24 Herberts Gmbh Verfahren zur mehrschichtigen Lackierung von Substraten
DE19907988A1 (de) * 1999-02-25 2000-08-31 Bayer Ag Wäßrige Sperrschicht auf Basis von Polyurethan-Dispersionen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6319981B1 (en) * 1991-10-29 2001-11-20 Bayer Aktiengesellschaft Coating compounds, a process for their production and their use for the production of coatings
EP0548727A2 (fr) * 1991-12-21 1993-06-30 Hoechst Aktiengesellschaft Liant autoréticulable, diluable dans l'eau, à modification uréthane, à groupes hydroxyle et compositions le contenant
EP0583728A1 (fr) * 1992-08-19 1994-02-23 Hoechst Aktiengesellschaft Composition de revêtement à deux composants diluables à l'eau
DE19837063A1 (de) * 1998-08-17 2000-02-24 Bayer Ag Verwendung einer wäßrigen Bindemittelkombination zur Herstellung von physikalisch trocknenden Überzügen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013174894A1 (fr) 2012-05-24 2013-11-28 Basf Se Compositions aqueuses de liants
US9382442B2 (en) 2012-05-24 2016-07-05 Basf Se Aqueous binder compositions
CN104087149A (zh) * 2014-07-21 2014-10-08 段宝荣 一种耐光性水性聚氨酯涂料的制备方法
CN105602429A (zh) * 2016-02-23 2016-05-25 广州市迪孚卡乐进出口贸易有限公司 一种皮革边油

Also Published As

Publication number Publication date
DE10145344A1 (de) 2003-04-24

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