公开(公告)号：EP4282542A1

公开(公告)日：2023-11-29

申请号：EP22742712.7

申请日：2022-01-24

申请人： Toyo Seikan Group Holdings, Ltd.

发明人： KASHIWAKURA, Takuya ,  YAMAMOTO Hiromi ,  SAKURAGI, Arata ,  ZHANG, Nan

IPC分类号： B05D3/12 ,  B05D7/14 ,  B05D7/24 ,  B21D22/20 ,  B21D22/28 ,  B21D51/18 ,  B21D51/26 ,  B32B27/26 ,  B32B27/36 ,  B32B27/42 ,  C09D161/06 ,  C09D161/20 ,  C09D167/00 ,  B32B15/09 ,  B65D1/00 ,  B65D1/16 ,  B32B1/02 ,  B32B7/027

摘要： In the present invention, a method for producing a drawn/ironed can includes drawing and ironing a coated metal sheet to obtain a drawn/ironed can, the coated metal sheet having an inner surface coating film at least on a surface to be a can inner surface, and a glass transition temperature (Tg) of a polyester resin contained in the inner surface coating film is 55°C or higher, an ironing rate in the drawing and ironing is 40% or greater, and a processing speed during ironing in the drawing and ironing is 2000 mm/sec or higher. Thus, even in a case where a coated metal sheet having a coating film that has excellent flavor sorption resistance and contains a polyester resin having a high glass transition temperature as a main component is used, it is possible to suppress occurrence of a coating film defect during molding and occurrence of coating film peeling due to heat treatment.

公开(公告)号：EP4101903A1

公开(公告)日：2022-12-14

申请号：EP21751221.9

申请日：2021-02-02

申请人： Toyo Seikan Group Holdings, Ltd.

发明人： SAKURAGI Arata ,  KASHIWAKURA Takuya ,  ZHANG Nan ,  YAMAMOTO Hiromi

IPC分类号： C09D167/00 ,  B21D51/26 ,  B32B15/09 ,  C09D7/61 ,  C09D7/63

摘要： A coating composition including a polyester resin blend as a principal resin, the polyester resin blend containing (A) a polyester resin having a glass transition temperature of higher than 40°C and an acid value of less than 10 mg KOH/g and (B) a polyester resin having a glass transition temperature of higher than 40°C and an acid value of 10 mg KOH/g or more and less than 50 mg KOH/g, and (C) a curing agent. Alternatively, a coating composition containing a polyester resin, as a principal resin, having a glass transition temperature of 60°C or higher, a resol-type phenol resin and/or an amino resin as a curing agent, and an organic sulfonic acid-based catalyst and/or a phosphoric acid-based catalyst as a curing catalyst, in which a content of the curing catalyst is less than 0.2 part by mass per 100 parts by mass of the principal resin. Provided is a coating composition that can manufacture a coated metal sheet and a drawn and ironed can, which have can making processability, substrate adhesion properties, and flavor sorption resistance all together.