ANTIMICROBIAL COATING COMPOSITION AND ANTI-MICROBIAL, COATED STEEL SHEET USING SAME

    公开(公告)号:EP4394010A1

    公开(公告)日:2024-07-03

    申请号:EP22861649.6

    申请日:2022-08-22

    申请人: POSCO Co., Ltd

    发明人: JO, Du-Hwan

    摘要: The present invention relates to an anti-microbial coating composition comprising: 30 to 60 weight % of a polyester resin; 3 to 15 weight % of a curing agent; 0.1 to 5 weight % of an anti-microbial agent; 0.1 to 15 weight % of a pigment; and the balance of a solvent on the basis of the total weight of the coating composition. The present invention also relates to an anti-microbial coated steel sheet comprising: a steel sheet; and an anti-microbial coating layer formed on at least one surface of the steel sheet, wherein an anti-microbial agent is contained in at least a part of the anti-microbial coating layer and has a Z/(M+Ca) content ratio of 0.1 to 0.5 wherein M is Ca, Ba, Mg, Zn, Ni, Fe, or Al and Z is P, As, V, or Si. The antimicrobial coating composition according to the present invention contains an anti-microbial agent, and when the composition is formed into a coating layer, the antimicrobial agent is enriched at the surface of the coating layer. Thus, microbes adsorbed, along with moisture, onto the coating surface are effectively killed by the hydroxy radical species and hydroxy anions generated on the coating surface. The coated steel sheet using the anti-microbial coating composition according to the present invention has excellent design properties as well as excellent workability and chemical resistance.

    COATING MATERIAL, COATING FILM, LAYERED PRODUCT, AND FLEXIBLE FLAT CABLE

    公开(公告)号:EP4317332A1

    公开(公告)日:2024-02-07

    申请号:EP22775261.5

    申请日:2022-03-15

    发明人: NAKAJIMA, Shoko

    摘要: Disclosed is a coating material comprising 100 parts by mass of an acid-modified polypropylene (A) and at least 450 parts by mass of organic solvents (B), wherein the acid-modified polypropylene has a melting point of 90°C or lower and the organic solvents (B) comprises 80-99 mass% aromatic hydrocarbon solvent (B1) and 20-1 mass% one or more solvents (B2) selected from the group consisting of ester-based solvents, ketone-based solvents, and alcohol-based solvents, the sum of the proportion of the ingredient (B1) and the proportion of the ingredient (B2) being 100 mass%. The coating material may further contain a compound (C) having, in the molecule, two or more functional groups capable of forming a chemical bond with a carboxyl group, in an amount of 0.1-20 parts by mass. The compound (C) having, in the molecule, two or more functional groups capable of forming a chemical bond with a carboxyl group may be one having no hydrolyzable group. Also disclosed are: a coating film formed from the coating material; a layered product comprising the coating film and a substrate film; and a flexible flat cable including the layered product.