发明公开
EP3124564A1 ELECTRODEPOSITION COATING COMPOSITION AND ELECTRODEPOSITION COATING METHOD
审中-公开
ZUSAMMENSETZUNG ZUR ELEKTROPLATTIERUNGSBESCHICHTUNG UND VERFAHREN ZUR ELEKTROPLATTIERUNGSBESCHICHTUNG
- 专利标题： ELECTRODEPOSITION COATING COMPOSITION AND ELECTRODEPOSITION COATING METHOD
- 专利标题（中）： ZUSAMMENSETZUNG ZUR ELEKTROPLATTIERUNGSBESCHICHTUNG UND VERFAHREN ZUR ELEKTROPLATTIERUNGSBESCHICHTUNG
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申请号： EP15768905.0申请日： 2015-02-27
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公开(公告)号： EP3124564A1公开(公告)日： 2017-02-01
- 发明人: INBE, Toshio , TAGO, Yohei , MIYAMAE, Nobuhiro
- 申请人： Nippon Paint Automotive Coatings Co., Ltd.
- 申请人地址： 2-14-1, Shodai-Ohtani Hirataka-shi Osaka 573-1153 JP
- 专利权人： Nippon Paint Automotive Coatings Co., Ltd.
- 当前专利权人： Nippon Paint Automotive Coatings Co., Ltd.
- 当前专利权人地址： 2-14-1, Shodai-Ohtani Hirataka-shi Osaka 573-1153 JP
- 代理机构： Bailey, Sam Rogerson
- 优先权： JP2014061243 20140325
- 国际公布： WO2015146480 20151001
- 主分类号： C09D201/00
- IPC分类号： C09D201/00 ; C09D5/02 ; C09D5/44 ; C09D7/12 ; C09D163/00 ; C25D13/06 ; C25D13/10
摘要：
It is an object of the present invention is to provide an electrodeposition coating composition and an electrodeposition coating method that enable the formation of a cured electrodeposition coating film that develops excellent throwing power and exhibits a good appearance. An electrodeposition coating composition of the present invention comprising:
at least one compound (A) selected from the group consisting of a zinc compound (A-1) and a bismuth compound (A-2);
an aminated resin (B); and
a curing agent (C),
wherein
a milligram equivalent (MEQ (A)) of an acid per 100 g of a resin solid content in the composition is 27 or more;
a coulombic efficiency of the composition is 30 mg/C or less;
a film resistance of a 15-µm-thick uncured electrodeposition coating film formed using the composition is 400 kΩ·cm 2 or more; and
a coating film viscosity of an electrodeposition coating film obtained from the composition is 3000 Pa·s or less at 50°C.
at least one compound (A) selected from the group consisting of a zinc compound (A-1) and a bismuth compound (A-2);
an aminated resin (B); and
a curing agent (C),
wherein
a milligram equivalent (MEQ (A)) of an acid per 100 g of a resin solid content in the composition is 27 or more;
a coulombic efficiency of the composition is 30 mg/C or less;
a film resistance of a 15-µm-thick uncured electrodeposition coating film formed using the composition is 400 kΩ·cm 2 or more; and
a coating film viscosity of an electrodeposition coating film obtained from the composition is 3000 Pa·s or less at 50°C.
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