Title:
COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
Document Type and Number:
WIPO Patent Application WO/2019/107570
Kind Code:
A1
Abstract:
The present invention provides a coating composition that can form a coating film having a good coating film appearance and design, and having well-balanced coating film properties such as scratch resistance. The present invention further provides a method for forming a multilayer coating film, the method including using the coating composition according to the present invention to form a coating film. Specifically, this coating composition contains: at least one type selected from the group consisting of a hydroxyl-group-containing acrylic resin (A), a melamine resin (B1), and an unblocked isocyanate compound (B2); and a half-ester-group-containing copolymer (C) which is a copolymer of a polymerizable unsaturated monomer (a) having a half-esterified acid anhydride group, and another copolymerizable monomer (b), wherein the polymerizable unsaturated monomer (a) has an acid anhydride group half-esterified by a monoalcohol having a carbon number between 1 and 8, inclusive, and the total acid value of the half-ester-group-containing copolymer (C) is between 5.0 mg KOH/g and 240 mg KOH/g, inclusive.
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Inventors:
MIWA YASUNORI (JP)
KAKII TAKUHIRO (JP)
INAZUMI TAKANORI (JP)
MIZUGUCHI KATSUMI (JP)
IIDA HIROSHI (JP)
OKADA TAKUMA (JP)
KAKII TAKUHIRO (JP)
INAZUMI TAKANORI (JP)
MIZUGUCHI KATSUMI (JP)
IIDA HIROSHI (JP)
OKADA TAKUMA (JP)
Application Number:
PCT/JP2018/044312
Publication Date:
June 06, 2019
Filing Date:
November 30, 2018
Export Citation:
Assignee:
NIPPON PAINT AUTOMOTIVE COATINGS CO LTD (JP)
International Classes:
C09D133/08; B05D1/36; B05D7/24; C09D7/61; C09D7/63; C09D133/14; C09D161/28; C09D175/04; C09D201/00
Foreign References:
| JPH04363374A | 1992-12-16 | |||
| JPH09100439A | 1997-04-15 | |||
| JP2001002983A | 2001-01-09 | |||
| JPH06108001A | 1994-04-19 | |||
| JPH07224146A | 1995-08-22 | |||
| JPH11335621A | 1999-12-07 | |||
| JPH11323243A | 1999-11-26 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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