公开(公告)号：EP4382212A1

公开(公告)日：2024-06-12

申请号：EP22852864.2

申请日：2022-07-22

申请人： Nippon Paint Automotive Coatings Co., Ltd.

发明人： KIYONAGA, Hiroshi ,  MARUO, Kenji ,  SEGAWA, Daisuke ,  YAMAGUCHI, Kohei ,  ARAKI, Yoshito

IPC分类号： B05D1/36 ,  B05D5/06 ,  B05D7/24 ,  C09D5/00 ,  C09D101/00 ,  C09D101/10 ,  C09D201/06 ,  C09D7/63

CPC分类号： C09D7/63 ,  C09D5/00 ,  C09D101/00 ,  C09D201/06 ,  B05D1/36 ,  B05D5/06 ,  C09D101/10 ,  B05D7/24

摘要： Provided is a coating composition set capable of achieving both a metallic design and coating film performance. A coating composition set including: a colored coating composition (a), a luster coating composition (b), and a clear coating composition (c), wherein the colored coating composition (a) includes a hydroxy group-containing resin (a1), a first curing agent (a2), and a coloring pigment (a3); the hydroxy group-containing resin (a1) includes a first hydroxy group-containing resin (a11) having a number average molecular weight of 3000 or less and a second hydroxy group-containing resin (a12) having a number average molecular weight of 100000 or more; the luster coating composition (b) includes a scaly pigment (b1), a cellulose ester derivative (b2), a cellulose nanofiber (b3), a phosphoric acid group-containing compound (b4), and an aqueous solvent (b5); the luster coating composition (b) has a solid content of 0.1% by mass or more and 12% by mass or less; and the clear coating composition (c) is a two-pack type including a third hydroxy group-containing resin (c1) and a second curing agent (c2).