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1. WO2022090524 - PYRROLE-BASED COATING FOR CORROSION PROTECTION

Publication Number WO/2022/090524
Publication Date 05.05.2022
International Application No. PCT/EP2021/080226
International Filing Date 30.10.2021
IPC
C08K 3/28 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
28Nitrogen-containing compounds
B05D 7/14 2006.1
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
14to metal, e.g. car bodies
C08G 61/12 2006.1
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
61Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
12Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
C09D 7/61 2018.1
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
7Features of coating compositions, not provided for in group C09D5/88; Processes for incorporating ingredients in coating compositions
40Additives
60non-macromolecular
61inorganic
C09D 7/63 2018.1
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
7Features of coating compositions, not provided for in group C09D5/88; Processes for incorporating ingredients in coating compositions
40Additives
60non-macromolecular
63organic
C09D 5/44 2006.1
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
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
44for electrophoretic applications
CPC
B05D 1/18
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
18performed by dipping
B05D 3/14
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING 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
14by electrical means
B05D 7/142
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING 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
14to metal, e.g. car bodies
142Auto-deposited coatings, i.e. autophoretic coatings
C08G 2261/11
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2261Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
10Definition of the polymer structure
11Homopolymers
C08G 2261/3221
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2261Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
30Monomer units or repeat units incorporating structural elements in the main chain
32incorporating heteroaromatic structural elements in the main chain
322non-condensed
3221containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole
C08G 2261/792
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2261Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
70Post-treatment
79doping
792with low-molecular weight dopants
Applicants
  • NOF METAL COATINGS EUROPE [FR]/[FR]
Inventors
  • RAHMANI, Amir
  • BRUYERE, Stéphanie
Agents
  • ATLANTIP INTERNATIONAL
Priority Data
FR201117230.10.2020FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) PYRROLE-BASED COATING FOR CORROSION PROTECTION
(FR) REVETEMENT A BASE DE PYRROLE POUR LA PROTECTION CONTRE LA CORROSION
Abstract
(EN) The present invention relates to a method for coating, using an anti-corrosive coating, at least one metal and/or conductive surface, comprising the following successive steps:- (a) treating the at least one metal and/or conductive or semi-conductive surface with a solution containing pyrrole monomer; - (b) electropolymerising the product from step (a), and - (c) recovering the at least one metal and/or conductive surface treated according to steps (a) and (b), characterised in that the anti-corrosive coating is a continuous film of polypyrroles; the anti-corrosive coating being capable of being obtained by said method; and the product comprising a metal and/or conductive surface coated with such an anti-corrosive coating.
(FR) La présente invention concerne un procédé de revêtement anticorrosif d'au moins une surface métallique et/ou conductrice comprenant les étapes successives suivantes :- (a) ladite au moins une surface métallique et/ou conductrice ou semi-conductrice est traitée par une solution contenant du monomère de pyrrole; - (b) une électro-polymérisation est appliquée au produit issu de l'étape (a), et- (c) ladite au moins une surface métallique et/ou conductrice, traitée selon les étapes (a) et (b), est récupérée,caractérisé en ce que le revêtement anticorrosif est un film continu de polypyrroles;le revêtement anticorrosif susceptible d'être obtenu par ce procédé; etle produit comprenant une surface métallique et/ou conductrice revêtue d'un tel revêtement anticorrosif.
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