公开(公告)号：US20240141182A1

公开(公告)日：2024-05-02

申请号：US18273346

申请日：2022-02-21

申请人： NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.

发明人： Tomoyuki ISHIKAWA ,  Kohei YAMAGUCHI ,  Eiji YAMANAKA ,  Azusa JIZODO ,  Yoshito ARAKI ,  Yohei JINNO

IPC分类号： C09D7/61 ,  C09D5/00 ,  C09D7/40 ,  C09D7/43 ,  C09D133/08

CPC分类号： C09D7/61 ,  C09D5/00 ,  C09D7/43 ,  C09D7/69 ,  C09D133/08

摘要： An object of the present invention is to provide a multi-layer coating film having at least a clear coating film and a base coating film and having good chipping resistance, and preferably to provide a multi-layer coating film further having good designability. The multi-layer coating film of the present invention is a multi-layer coating film comprising a substrate, a base layer formed thereon, and a clear layer formed on the base layer, wherein the base layer comprises a luster pigment, wherein the base layer has an erosion index of 45 μm2/g or less where the erosion index is a value obtained by multiplying an erosion rate of the base layer by a thickness of the base layer, and wherein the erosion rate of the base layer is measured using a micro slurry jet erosion method at a projection power at which an erosion rate with respect to a silicon wafer is 0.635 μm/g.

公开(公告)号：US20240318011A1

公开(公告)日：2024-09-26

申请号：US18579705

申请日：2022-07-22

申请人： NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.

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

IPC分类号： C09D5/36 ,  C09D7/40 ,  C09D7/63 ,  C09D7/65 ,  C09D101/10 ,  C09D175/06

CPC分类号： C09D5/36 ,  C09D7/63 ,  C09D7/65 ,  C09D7/70 ,  C09D101/10 ,  C09D175/06

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).

公开(公告)号：US20240263024A1

公开(公告)日：2024-08-08

申请号：US18564354

申请日：2022-06-10

申请人： NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.

发明人： Yoshito ARAKI ,  Hiroshi KIYONAGA ,  Eiji YAMANAKA

IPC分类号： C09D5/36 ,  C09D7/40 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D101/10

CPC分类号： C09D5/36 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D7/70 ,  C09D101/10

摘要： Provided are a water-borne luster coating composition and a coated plate which can exhibit a metallic design and in which coating film defects are prevented. A water-borne luster coating composition comprising a cellulose ester derivative, a cellulose nanofiber, and a scaly pigment, wherein an amount of a solid contained in the water-borne luster coating composition is 0.1% by mass or more and 12% by mass or less. A coated plate comprising an article to be coated and a luster coating film, wherein the luster coating film is formed of the water-borne luster coating composition.