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Patent Searching and Data


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.

Inventors:
MIWA, Yasunori (2-14-1, Shodai-Ohtani, Hirakata-sh, Osaka 53, 〒5731153, JP)
KAKII, Takuhiro (2-14-1, Shodai-Ohtani, Hirakata-sh, Osaka 53, 〒5731153, JP)
INAZUMI, Takanori (2-14-1, Shodai-Ohtani, Hirakata-sh, Osaka 53, 〒5731153, JP)
MIZUGUCHI, Katsumi (2-14-1, Shodai-Ohtani, Hirakata-sh, Osaka 53, 〒5731153, JP)
IIDA, Hiroshi (2-14-1, Shodai-Ohtani, Hirakata-sh, Osaka 53, 〒5731153, JP)
OKADA, Takuma (2-14-1, Shodai-Ohtani, Hirakata-sh, Osaka 53, 〒5731153, JP)
Application Number:
JP2018/044312
Publication Date:
June 06, 2019
Filing Date:
November 30, 2018
Export Citation:
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Assignee:
NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD. (2-14-1, Shodai-Ohtani Hirakata-sh, Osaka 53, 〒5731153, JP)
International Classes:
C09D133/08; B05D1/36; B05D7/24; C09D7/61; C09D7/63; C09D133/14; C09D161/28; C09D175/04; C09D201/00
Foreign References:
JPH04363374A1992-12-16
JPH09100439A1997-04-15
JP2001002983A2001-01-09
JPH06108001A1994-04-19
JPH07224146A1995-08-22
Attorney, Agent or Firm:
YAMAO, Norihito et al. (AOYAMA & PARTNERS, Umeda Hankyu Bldg. Office Tower 8-1, Kakuda-cho, Kita-ku, Osaka-sh, Osaka 17, 〒5300017, JP)
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