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1. WO2022046996 - CORROSION-RESISTANT COATINGS

Publication Number WO/2022/046996
Publication Date 03.03.2022
International Application No. PCT/US2021/047696
International Filing Date 26.08.2021
IPC
C09D 101/02 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
101Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
02Cellulose; Modified cellulose
C09D 5/08 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
08Anti-corrosive paints
C08K 13/02 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
13Use of mixtures of ingredients not covered by any single one of main groups C08K3/-C08K11/128
02Organic and inorganic ingredients
CPC
C08K 13/02
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
13Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
02Organic and inorganic ingredients
C09D 101/02
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
101Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
02Cellulose; Modified cellulose
C09D 5/08
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
08Anti-corrosive paints
Applicants
  • COATINGS FOR INDUSTRY, INC. [US]/[US]
Inventors
  • MCMORDIE, Bruce, Gordon
  • KLOTZ, Brian
Agents
  • BARRON, Alexis
  • HECHT, Gary, A.
  • BARRISON, Flynn
Priority Data
63/071,52628.08.2020US
63/113,50813.11.2020US
63/214,36524.06.2021US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CORROSION-RESISTANT COATINGS
(FR) REVÊTEMENTS RÉSISTANTS À LA CORROSION
Abstract
(EN) A process for forming on a corrodible substrate a corrosion-resistant multi-ply coating comprising: (a) applying an aluminum-containing silicate slurry onto the surface of the substrate and heating the deposited slurry to form a cured composite of an aluminum-Containing silicate basecoat that is not electrically conductive, optionally repeating the aforementioned step to form a thicker multi-ply coating, (b) applying an initial solution of tri valent aluminum and phosphate ions ( Al+3PO4) to the surface of said basecoat and heating the substrate that has thereon said solution to form a cured ply comprising a composite that is not electrically conductive; (c) mechanically working the surface of the composite to form a modified composite which is in electrically conductive form; and (d) applying to the surface of the modified composite an additional solution of divalent aluminum and phosphate ions (Al+3PO4), the composition of which may be the same as or different from said initial solution, and heating the modified conductive coated surface having thereon said additional solution under conditions which cure it to form said multi-ply coating which is not electrically conductive, a multi-ply coating prepared by the process, and an article coated with the multi-ply coating.
(FR) L'invention concerne un procédé de formation, sur un substrat corrodable, d'un revêtement multicouche résistant à la corrosion comprenant : (a) l'application d'une suspension de silicate contenant de l'aluminium sur la surface du substrat et le chauffage de la suspension déposée pour former un composite durci d'une couche de base de silicate contenant de l'aluminium qui n'est pas électriquement conductrice, la répétition éventuelle de l'étape mentionnée ci-dessus pour former un revêtement multicouche plus épais, (b) l'application d'une solution initiale d'ions aluminium et phosphate trivalents (Al+3PO4) sur la surface de ladite couche de base et le chauffage du substrat qui a, sur celui-ci, ladite solution pour former une nappe durcie comprenant un composite qui n'est pas électroconducteur; (c) le travail mécanique de la surface du composite pour former un composite modifié qui est sous une forme électriquement conductrice; et (d) l'application, sur la surface du composite modifié, d'une solution supplémentaire d'ions aluminium et phosphate divalents (Al+3PO4), dont la composition peut être identique ou différente de ladite solution initiale, et le chauffage de la surface revêtue conductrice modifiée ayant sur celle-ci ladite solution supplémentaire dans des conditions qui la durcissent pour former ledit revêtement multicouche qui n'est pas électroconducteur, un revêtement multicouche préparé par le procédé, et un article revêtu par le revêtement multicouche.
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