Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020089019 - METHOD FOR PRODUCING A MULTILAYER COATING STRUCTURE WITH A TOP LAYER MADE OF SILANE GROUP-CONTAINING PREPOLYMERS

Publication Number WO/2020/089019
Publication Date 07.05.2020
International Application No. PCT/EP2019/078965
International Filing Date 24.10.2019
IPC
B05D 7/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
7Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
B05D 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
C08F 4/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
C07F 7/18 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
7Compounds containing elements of Groups 4 or 14 of the Periodic System
02Silicon compounds
08Compounds having one or more C-Si linkages
18Compounds having one or more C-Si linkages as well as one or more C-O-Si linkages
C08G 18/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
B05D 3/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
02by baking
CPC
B05D 2202/25
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
2202Metallic substrate
20based on light metals
25based on Al
B05D 2503/00
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
2503Polyurethanes
B05D 2518/10
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
2518Other type of polymers
10Silicon-containing polymers
B05D 3/0254
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
02by baking
0254After-treatment
B05D 7/536
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
7Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
50Multilayers
52Two layers
53Base coat plus clear coat type
536each layer being cured, at least partially, separately
C07F 7/18
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
7Compounds containing elements of Groups 4 or 14 of the Periodic System
02Silicon compounds
08Compounds having one or more C—Si linkages
18Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
Applicants
  • COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG [DE]/[DE]
Inventors
  • GOLLING, Florian
  • HECKING, Andreas
  • PIRES, Raul
  • LAAS, Hans-Josef
  • WEIKARD, Jan
Agents
  • LEVPAT
Priority Data
18203255.730.10.2018EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG EINES MEHRSCHICHT-LACKAUFBAUS MIT EINER DECKSCHICHT AUS SILANGRUPPEN-ENTHALTENDEN PREPOLYMEREN
(EN) METHOD FOR PRODUCING A MULTILAYER COATING STRUCTURE WITH A TOP LAYER MADE OF SILANE GROUP-CONTAINING PREPOLYMERS
(FR) PROCÉDÉ DE FABRICATION D'UNE STRUCTURE DE PEINTURE MULTICOUCHE À COUCHE DE RECOUVREMENT EN PRÉPOLYMÈRES CONTENANT DES GROUPES SILANE
Abstract
(DE)
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines mindestens 2-schichtigen Lackaufbaus aus einer unteren Basislack- und einer darüber angeordneten oberen Decklackschicht auf einem Substrat, wobei das Verfahren die Schritte umfasst: a) Aufbringen einer Basislackschicht umfassend Polymere ausgesucht aus der Gruppe bestehend aus Polyacrylaten, Polyurethanen, Polyetherpolyolen, Polycarbonatpolyolen, Polyesterpolyolen, Melaminharzen, Alkydharzen oder deren Mischungen auf ein Substrat; b) zumindest teilweises Aushärten der Basislackschicht; c) Aufbringen eines Decklacks auf die in Schritt b) aufgebrachte Basislackschicht, wobei der Decklack als strukturgebende Komponente silangruppen-enthaltende Prepolymere mit einem Gehalt von größer oder gleich 20 Gew.-% und kleiner oder gleich 100 Gew.-% bezogen auf die ausgehärtete Decklackschicht und einen Katalysator mit einem Gehalt von größer oder gleich 0,01 Gew.-% und kleiner oder gleich 5 Gew.-% bezogen auf die ausgehärtete Decklackschicht umfasst und der Katalysator ausgewählt ist aus der Gruppe bestehend aus Protonensäuren oder Mischungen daraus; und d) zur Reaktion bringen der in Schritt c) aufgebrachten Schicht zum Erhalt der Decklackschicht. Die Erfindung betrifft weiterhin einen Schichtverbund aus den zwei erfindungsgemäßen Schichten, die Verwendung des erfindungsgemäßen zur Beschichtung eines Substrats sowie ein Karosserieteil mit der erfindungsgemäßen Beschichtung.
(EN)
The invention relates to a method for producing an at least two-layer coating structure made of a lower base coating layer and an upper top coating layer arranged over the base coating on a substrate. The method has the steps of: a) applying a base coating layer comprising polymers selected from the group consisting of polyacrylates, polyurethanes, polyether polyols, polycarbonate polyols, polyester polyols, melamine resin, alkyd resin, or mixtures thereof onto a substrate; b) at least partly curing the base coating layer; c) applying a top coating onto the base coating layer applied in step b), said top coating comprising, as structure-forming components, a content of more than or equal to 20 wt.% and less than or equal to 100 wt.%, based on the cured top coating layer, of silane group-containing prepolymers and a content of more than or equal to 0.01 wt.% and less than or equal to 5 wt.%, based on the cured top coating layer, of a catalyst, wherein the catalyst is selected from the group consisting of protonic acids or mixtures thereof; and d) reacting the layer applied in step c) in order to obtain the top coating layer. The invention additionally relates to a layer composite consisting of the two layers according to the invention, to the use of the coating structure according to the invention for coating a substrate, and to a vehicle body part with the coating according to the invention.
(FR)
La présente invention concerne un procédé de fabrication d’une structure de peinture à au moins deux couches, composée d’une couche de peinture de base inférieure et d’une couche de peinture de recouvrement supérieure disposée dessus sur un substrat, ledit procédé comprenant les étapes suivantes: a) appliquer une couche de peinture de base comprenant des polymères sélectionnés dans le groupe comprenant polyacrylates, polyuréthanes, polyéther polyols, polycarbonate polyols, polyester polyols, résines de mélanine, résines alkyde ou leurs mélanges sur un substrat; b) faire durcir au moins en partie la couche de peinture de base; c) appliquer une peinture de recouvrement sur la couche de peinture de base appliquée à l’étape b), la peinture de recouvrement comprenant comme composant structurant des prépolymères contenant des groupes silane, lesdits prépolymères ayant une teneur supérieur ou égale à 20% en poids et inférieure ou égale à 100% en poids sur la couche de peinture de recouvrement durcie et un catalyseur ayant une teneur supérieure ou égale à 0,01% en poids et inférieure ou égale à 5% en poids, rapporté à la couche de peinture de recouvrement durcie, et le catalyseur étant sélectionné dans le groupe comprenant des acides protoniques ou leurs mélanges et d) faire réagir la couche appliquée à l’étape c) de manière à obtenir la couche de peinture de recouvrement. L’invention concerne en outre un composite stratifié composé des deux couches selon l’invention, l’utilisation du composite stratifié selon l’invention pour munir un substrat d’un revêtement ainsi qu’un élément de carrosserie muni du revêtement selon l’invention.
Latest bibliographic data on file with the International Bureau