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1. WO2021001187 - A 2K CLEARCOAT COMPOSITION, ITS PREPARATION AND USE THEREOF

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Publication Number WO/2021/001187
Publication Date 07.01.2021
International Application No. PCT/EP2020/067286
International Filing Date 22.06.2020
IPC
C09D 175/04 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING 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
175Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
04Polyurethanes
C09D 163/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING 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
163Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
C09D 167/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING 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
167Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
C08G 18/42 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
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
42Polycondensates having carboxylic or carbonic ester groups in the main chain
C09D 175/06 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING 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
175Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
04Polyurethanes
06from polyesters
Applicants
  • BASF COATINGS GMBH [DE]/[DE]
Inventors
  • ZHANG, Yang
  • WANG, Ji Ming
  • HE, Lei
  • SCHAEFER, Christian Gerhard
  • LIU, Wen Mei
  • SALVI, Ranjit
  • HIRSEMANN, Stefan
Agents
  • BASF IP ASSOCIATION
Priority Data
PCT/CN2019/09443002.07.2019CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A 2K CLEARCOAT COMPOSITION, ITS PREPARATION AND USE THEREOF
(FR) COMPOSITION DE REVÊTEMENT TRANSPARENT 2K, SA PRÉPARATION ET SON UTILISATION
Abstract
(EN)
This invention provided a 2K clearcoat composition comprising, Component I comprising a). at least one resin having carboxylic acid groups with acid value of 50 to 400 mg KOH/g; b). at least one resin having hydroxyl functional groups with a hydroxyl value of 10 to 800 mg KOH/g; c). at least one catalyst; d). at least one solvent, and Component II comprising e). at least one epoxy-functional alkoxysilane and/or its oligomer and/or its polymer; and f). at least one crosslinker reactive to hydroxyl groups. And this invention also provided a substrate coated with the dried and cured 2K clearcoat composition of this invention as well as an automotive comprising the invented substrate.
(FR)
La présente invention concerne une composition de revêtement transparent 2K comprenant un constituant I comprenant a) au moins une résine contenant des groupes acide carboxylique ayant un indice d'acidité de 50 à 400 mg de KOH/g ; b) au moins une résine contenant des groupes fonctionnels hydroxyle ayant un indice d'hydroxyle de 10 à 800 mg de KOH/g ; c) au moins un catalyseur ; d) au moins un solvant, et un constituant II comprenant e) au moins un alcoxysilane à fonctionnalité époxy et/ou son oligomère et/ou son polymère ; et f) au moins un agent de réticulation pouvant réagir avec les groupes hydroxyle. L'invention concerne également un substrat revêtu de la composition de revêtement transparent 2K séchée et durcie selon la présente invention ainsi qu'une automobile comprenant le substrat selon l'invention.
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