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Patent Searching and Data


Title:
METHOD FOR FORMING CURED ELECTRODEPOSITION COATING FILM
Document Type and Number:
WIPO Patent Application WO/2017/204293
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for forming a cured electrodeposition coating film in which the glossiness thereof is adjusted, such as a low-gloss coating film having low specular gloss or a mat coating film. The present invention provides a method for forming a cured electrodeposition coating film, wherein the method includes an electrodeposition coating step for dipping an object to be coated in an anion electrodeposition coating material composition and forming an electrodeposition coating film, and a thermal curing step for heating and curing the electrodeposition coating film formed in the coating step, the anion electrodeposition coating material composition including an acrylic resin (A), a curing agent (B), a water-dispersion-type gloss adjuster (C), and a curing catalyst (D), the water-dispersion-type gloss adjuster (C) being a water dispersion of one or more types of wax selected from the group consisting of natural wax and a polyolefin wax, the wax configuring the water-dispersion-type gloss adjuster (C) having a softening point (Tm) of 100°C or higher and a density in the range of 0.91-1.10, the solid content mass of the water-dispersion-type gloss adjuster (C) included in the anion electrodeposition coating material composition being 6-20 parts by mass with respect to 100 parts by mass of resin solid content of the anion electrodeposition coating material composition, and the coating film viscosity at 50°C of the electrodeposition coating film formed in the electrodeposition coating step being in the range of 10,000-100,000 Pa∙s.

Inventors:
KANEKO, Toshio (2-1-2, Oyodokita, Kita-ku, Osaka-sh, Osaka 11, 〒5318511, JP)
KANO, Hirohisa (2-1-2, Oyodokita, Kita-ku, Osaka-sh, Osaka 11, 〒5318511, JP)
NISHIOKA, Sumio (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 〒1408675, JP)
AOKI, Masaru (4-1-15, Minamishinagawa, Shinagawa-k, Tokyo 75, 〒1408675, JP)
Application Number:
JP2017/019524
Publication Date:
November 30, 2017
Filing Date:
May 25, 2017
Export Citation:
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Assignee:
NIPPON PAINT INDUSTRIAL COATINGS CO., LTD. (4-1-15, Minamishinagawa Shinagawa-k, Tokyo 75, 〒1408675, JP)
International Classes:
C25D13/10; C09D5/44; C09D7/12; C09D133/00
Foreign References:
JP2016060890A2016-04-25
JP2011148846A2011-08-04
JP2000080332A2000-03-21
JPH11256080A1999-09-21
JPH05179175A1993-07-20
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi 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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