Title:
複層塗膜形成方法
Document Type and Number:
Japanese Patent JP6737925
Kind Code:
B2
Abstract:
A method for forming a multilayer coated film includes step (1) of applying an aqueous intermediate coating composition (A), step (2) of applying an aqueous base coating composition (B), step (3) of applying a clear coating composition (C), and step (4) of heat-curing the coated films. The coating composition (A) contains a specific hydroxyl group-containing acrylic resin (a1), a specific polyurethane resin (a2), a specific hydroxyl group-containing polyester resin (a3), a melamine resin (a4), and an active methylene-blocked polyisocyanate compound (a5). A ratio of the resin (a1) to the resin (a2) falls within a specific range. The heat-cured coated film of the coating composition (A) has a specific elongation at break, Young's modulus and Tukon hardness. The coating composition (C) contains a hydroxyl group-containing acrylic resin (c1) and an allophanate group-containing polyisocyanate compound (c2).
Inventors:
Mako Hase
Hirotsugu Mitsuishi
Keiji Anpo
Ichiki Matsubara
Ryosei Matsuura
Takayuki Ono
Hironori Tonomura
Hirotsugu Mitsuishi
Keiji Anpo
Ichiki Matsubara
Ryosei Matsuura
Takayuki Ono
Hironori Tonomura
Application Number:
JP2019088543A
Publication Date:
August 12, 2020
Filing Date:
May 08, 2019
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
KANSAI PAINT CO.,LTD.
KANSAI PAINT CO.,LTD.
International Classes:
B05D1/36; B05D7/14; B05D7/24; B32B15/082; C09D133/14; C09D161/28; C09D167/00; C09D175/08
Domestic Patent References:
| JP2010167382A | ||||
| JP2004075781A | ||||
| JP61023650A | ||||
| JP2017154089A |
Attorney, Agent or Firm:
Patent business corporation glory patent office