Title:
INTERMEDIATE COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
Document Type and Number:
Japanese Patent JP2017025241
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an intermediate coating composition capable of forming a multilayer coating film excellent in chipping resistance and appearance of an intermediate coating layer without using a chipping-resistant primer.SOLUTION: There is provided an intermediate coating composition used for forming an intermediate coating layer directly laminated on an electrodeposition film surface constituting a vehicle outside plate, where the intermediate coating composition comprises (a) a polycaprolactone triol having a content of 1 mass% or more and to 27 mass% or less, (b) a blocked isocyanate having a content of 20 mass% or more and 60 mass% or less and (c) a melamine resin having a content of 1 mass% or more and 20 mass% or less in the entire resin component and (d) 0.1 pt.mass or more and 5 pts.mass of a phosphoric acid-based compound based on total 100 pts.mass of the resin components. It is preferably that the phosphoric acid-based compound preferably has an acid value of 150 mgKOH/g or more. It is preferably that the phosphate group of (d) the phosphoric acid-based compound is not blocked.SELECTED DRAWING: None
Inventors:
ICHIMURA HIDEKI
IRIE TAKASHI
KASAHARA KOICHI
OKADA EISAKU
IRIE TAKASHI
KASAHARA KOICHI
OKADA EISAKU
Application Number:
JP2015147258A
Publication Date:
February 02, 2017
Filing Date:
July 24, 2015
Export Citation:
Assignee:
NIPPON PAINT AUTOMOTIVE COATINGS CO LTD
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
C09D175/06; B05D1/36; B05D7/24; C09D7/12; C09D161/28; C09D163/00
Attorney, Agent or Firm:
Hajime Amano
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Kenichi Fujinaka
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Kenichi Fujinaka