ORGANIC RESIN COATED SURFACE-TREATED METAL PLATE

• Main Authors: SAKURAGI, Arata, KASHIWAKURA, Takuya
• Format: Patent
• Language: English; French; Japanese
• Published: 25.04.2019
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; DIFFUSION TREATMENT OF METALLIC MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; STORING; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

The present invention is an organic resin coated surface-treated metal plate which is obtained by forming, on at least one surface of a metal plate, a surface treatment film layer and an organic resin coating layer that is on the surface treatment film layer, and which is characterized in that: the surface treatment film layer contains a polycarboxylic acid polymer as a main component, while containing a polyalcohol as a crosslinking component for the polycarboxylic acid polymer. An organic resin coated surface-treated metal plate according to the present invention enables the achievement of a can body and a can lid, which have hot water-resistant adhesion that is able to deal with a pasteurization treatment after filling of the content and a sterilization treatment such as a retort treatment. L'invention concerne une tôle métallique traitée en surface revêtue de résine organique qui est constituée par formation d'une couche de film de traitement de surface et d'une couche de revêtement de résine organique sur cette couche de film de traitement de surface, sur au moins une face d'une tôle métallique, et qui est caractéristique en ce que la couche de film de traitement de surface comprend un polymère à base d'acide polycarboxylique en tant que composant principal, et un polyalcool en tant que composant de réticulation du polymère à base d'acide polycarboxylique. La tôle métallique traitée en surface revêtue de résine organique de l'invention permet de fournir un corps et un couvercle de boîte de conserve qui présentent une adhérence résistant à l'eau chaude leur permettant d'être appropriés à une stérilisation par traitement de pasteurisation, traitement en autoclave, ou similaire, après remplissage d'un contenu. 本発明は、金属板の少なくとも片面に、表面処理皮膜層及び該表面処理皮膜層上に有機樹脂被覆層が形成されて成る有機樹脂被覆表面処理金属板であって、該表面処理皮膜層が主成分としてポリカルボン酸系重合体及び該ポリカルボン酸系重合体の架橋成分としてポリアルコールを含有することを特徴とする。本発明の有機樹脂被覆表面処理金属板は、内容品充填後のパストライズ処理やレトルト処理等の殺菌処理にも対応可能な耐熱水密着性を有する缶体、缶蓋を提供可能である。