公开(公告)号：US20240240049A1

公开(公告)日：2024-07-18

申请号：US18289285

申请日：2022-03-31

申请人： KANSAI PAINT CO., LTD.

发明人： Yukihiro IKEURA ,  Gen YOKOTA ,  Eisuke NISHIGUCHI ,  Hiroaki YAMADA

IPC分类号： C09D175/04 ,  B05D7/00 ,  B05D7/14 ,  B05D7/24 ,  C09D7/20 ,  C09D7/65 ,  C09D17/00 ,  C09D133/08

CPC分类号： C09D175/04 ,  B05D7/14 ,  B05D7/24 ,  B05D7/572 ,  C09D7/20 ,  C09D7/65 ,  C09D17/003 ,  C09D133/08 ,  B05D2202/00 ,  B05D2401/21 ,  B05D2503/00

摘要： An aqueous coating composition for automotive exterior, the aqueous coating composition containing resin particles (A), a crosslinking agent (B), a pigment (C), and a nanocellulose (D). In the aqueous coating composition, a content of the nanocellulose (D) is 0.5 to 2.0 parts by mass in terms of solid content with respect to 100 parts by mass of a resin solid content in the coating, a solid content concentration of the coating composition is in a range from 45 to 65 mass %, and a viscosity of the coating composition measured by a Brookfield-type viscometer under measurement conditions of a temperature of 20° C. and a rotor rotation speed of 60 rpm is in a range from 350 to 1200 mPa·s.

公开(公告)号：US20180230326A1

公开(公告)日：2018-08-16

申请号：US15895151

申请日：2018-02-13

申请人： KANSAI PAINT CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Masako HASE ,  Keiji AMBO ,  Yoshinori NARITA ,  Hiroshi NISHINAKA ,  Yukihiro IKEURA ,  Kazuki MATSUBARA

IPC分类号： C09D161/28 ,  B05D1/02 ,  B05D7/00 ,  B05D3/02 ,  C09D167/02 ,  B05D7/14 ,  C09D133/10 ,  C09D125/14

CPC分类号： C09D161/28 ,  B05D1/02 ,  B05D3/0218 ,  B05D7/14 ,  B05D7/572 ,  B05D7/5723 ,  B05D7/574 ,  B05D2202/10 ,  B05D2350/65 ,  C08L61/28 ,  C08L2201/54 ,  C09D125/14 ,  C09D133/066 ,  C09D133/10 ,  C09D133/26 ,  C09D167/02

摘要： A method for forming a multilayer coated film on an electrodeposition-coated alloyed hot-dip galvanized steel plate include step (1) of applying an aqueous intermediate coating composition (X), step (2) of applying an aqueous base coating composition (Y), step (3) of applying a clear coating composition (Z) containing an epoxide, and step (4) of heat-curing each coated film. The coating composition (X) contains a hydroxyl group-containing acrylic resin (A), a polyurethane resin (B), a hydroxyl group-containing polyester resin (C), a melamine resin (D), and an active methylene-blocked polyisocyanate compound (E). The ratio of (A) to (B) is controlled to a specific range, and an elongation at break, Young's modulus and Tukon hardness of the coated film of the coating composition (X) are controlled to specific ranges.