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Title:
CATIONIC ELECTRODEPOSITION COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/218215
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a cationic electrodeposition coating composition having excellent anti-corrosion and finishability on an edge portion and a flat portion even in a thin film; and a coated article having excellent coating film performance. As a solution, provided is a cationic electrodeposition coating composition characterized by having an amino group-containing epoxy resin (A), a blocked polyisocyanate compound (B), and epoxy resin crosslinked particles (C), wherein the coating composition contains 0.1-40 parts by mass of the epoxy resin crosslinked particles (C), with respect to the total mass of the solid contents of the amino group-containing epoxy resin (A) and the blocked polyisocyanate compound (B), and the number average molecular weight of the epoxy resin crosslinked particles (C) is less than 100,000, and/or the volume average particle diameter of the epoxy resin crosslinked particles (C) is 30-1000 nm.

Inventors:
YOSHIKAWA YUJI (JP)
ITO DAISAKU (JP)
IIJIMA HIDEKI (JP)
Application Number:
PCT/JP2020/016957
Publication Date:
October 29, 2020
Filing Date:
April 17, 2020
Export Citation:
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Assignee:
KANSAI PAINT CO LTD (JP)
International Classes:
C09D5/44; C09D7/63; C09D7/65; C09D163/00; C09D175/04; C25D13/06
Domestic Patent References:
WO2018012604A12018-01-18
Foreign References:
JP2018159032A2018-10-11
JP2005097688A2005-04-14
JPH06287267A1994-10-11
JPH0665791A1994-03-08
JPH08120494A1996-05-14
JP2017214572A2017-12-07
JP2018159032A2018-10-11
JPH07268063A1995-10-17
US3984299A1976-10-05
US4017438A1977-04-12
JPS5943013A1984-03-09
JPH08337750A1996-12-24
Other References:
See also references of EP 3960821A4
Attorney, Agent or Firm:
YAMADA, Yasuyuki et al. (JP)
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