ANTIFOAMING AGENT COMPOSITION, AQUEOUS COATING COMPOSITION AND ARTICLE

    公开(公告)号:EP4552718A1

    公开(公告)日:2025-05-14

    申请号:EP23835627.3

    申请日:2023-07-10

    Abstract: A defoamer composition which is capable of forming a coating film with excellent coating appearance, has excellent shear resistance, and does not impair overcoatability, an aqueous paint composition containing the defoamer composition, and an article coated with a coating agent containing the defoamer composition are provided. A defoamer composition for aqueous paints contains: a nonionic surfactant (A) having at least one hydrophilic moiety selected from the group consisting of an ethylene glycol moiety, a polyethylene glycol moiety and a polyhydric alcohol moiety in a molecule, the nonionic surfactant (A) having an HLB of 1 to 16; a polymer (B) which does not have the hydrophilic moiety in a molecule, the polymer (B) having an SP value of 7.5 to 12 and a weight-average molecular weight of 400 to 1,000,000; and organic solid fine particles (C) which are in a solid state in the defoamer composition at 25°C.

    COATING COMPOSITION AND COATING FILM
    7.
    发明公开

    公开(公告)号:EP4491686A1

    公开(公告)日:2025-01-15

    申请号:EP22949307.7

    申请日:2022-06-28

    Abstract: Provided is a coating composition containing a silicon atom-containing resin. The silicon atom-containing resin includes a constituent unit (A) derived from a monomer (a) having at least one kind of silicon atom-containing group selected from the group consisting of groups represented by a formula (I), a formula (II), a formula (III), and a formula (IV), a constituent unit (B) derived from a monomer (b) having a triorganosilyloxycarbonyl group, and a constituent unit (C) derived from a monomer (c) other than the monomer (a) and the monomer (b). The monomer (a) has a molecular weight of greater than 2500. The monomer (c) is a monomer having a homopolymer solubility parameter SP of less than or equal to 9.5 and having no cyclic structure. A content of the constituent unit (A) is greater than or equal to 11% by mass in all constituent units. A content of the constituent unit (C) is greater than or equal to 1% by mass and less than or equal to 60% by mass in all constituent units.

    COATING COMPOSITION AND METHOD FOR FORMING COATING FILM

    公开(公告)号:EP4481009A1

    公开(公告)日:2024-12-25

    申请号:EP23756466.1

    申请日:2023-02-17

    Abstract: Provided are a coating composition including: (A) a hydroxy group-containing resin; (B) a polyisocyanate compound; (C) an organometallic catalyst formed of a zinc compound and an amidine compound; and (D) a phosphate group-containing compound, and a coating film forming method including: coating a top of a material to be coated with the above-mentioned coating composition to form a coating film; and then heating the coating film to cure the coating film.

    STEEL SHEET AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:EP4477410A1

    公开(公告)日:2024-12-18

    申请号:EP23778783.3

    申请日:2023-01-24

    Abstract: An object is to provide a steel sheet having a lubrication film that is to be subjected to complex forming in which press forming is difficult, the steel sheet having low sliding resistance in a portion at risk of cracking when press forming is performed and excellent press formability in a portion in which die galling is considered to occur due to high contact pressure, and a method for manufacturing the steel sheet.
    The steel sheet has an organic resin coating film which has an indentation reduced Young's modulus of 20 GPa or higher and 50 GPa or lower and an indentation hardness of 0.5 GPa or higher and 1.5 GPa or lower or which has an indentation reduced Young's modulus of 10 GPa or higher and less than 20 GPa and an indentation hardness of 0.2 GPa or higher and 0.5 GPa or lower and which has a coating weight per side of 0.2 g/m 2 or more and 2.0 g/m 2 or less on a surface thereof.

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