Phenolic-formaldehyde resin coated metal surfaces and...

C - Chemistry – Metallurgy – 23 – C

Patent

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C23C 22/06 (2006.01) B05D 7/14 (2006.01) B05D 7/24 (2006.01) B32B 15/08 (2006.01) C09D 161/06 (2006.01) C23C 22/08 (2006.01) C23C 22/36 (2006.01)

Patent

CA 2261702

Coated metal bearing a coating on its surface that comprises pheno-, naphtol-, or bisphenol-formaldehyde resin comprising specific structural units, has a thickness from 5 to 5000 nm, contains from 5 to 500 mg of carbon atoms present in the resin per m2 of surface coated, and covers at least 90 % of the surface of the metal, can be subjected to film lamination onto the coating to provide a composite that has an excellent formability, excellent corrosion resistance, excellent adherence between the laminated film and the metal, and excellent environmental safety.

La présente invention concerne un métal pelliculé dont la surface est enduite d'un revêtement en résine phénol, naphtol ou bisphénol constituée d'unités structurelles spécifiques. L'épaisseur du métal pelliculé est comprise entre 5 et 500 nm. La résine de pelliculage de ce métal contient de 5 à 500 mg de carbone à l'état atomique par m?2¿ de surface, lesquels atomes de carbone recouvrent ainsi au moins 90 % de la surface du métal. Ce métal pelliculé peut être soumis à un couchage de façon à réaliser un composite caractérisé par une excellente aptitude au formage, une excellente résistance à la corrosion, une excellente adhérence entre le film pelliculé et le métal, et une excellente innocuité pour l'environnement.

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