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Title:
ANIONIC ELECTRODEPOSITION COATING AND RECOATING METHOD
Document Type and Number:
Japanese Patent JP2004155836
Kind Code:
A
Abstract:

To provide an anionic electrodeposition coating suitable for recoating anionic deposition coating films.

This anionic electrodeposition coating having excellent overcoating adhesiveness is characterized by compounding an acrylic resin having a weight-average mol. wt. of about 30,000, an acid value of 53 KOH mg/g, and an OH group value of 72 KOHmg/g with a melamine resin-curing agent and a sulfonic acid-based compound such as dinonylnaphthalene sulfonic acid, isopropylnaphthalene sulfonic acid, dodecylbenzene sulfonic acid or dibutylbenzene sulfonic acid. The method for recoating the electrodeposition coating film is characterized by coating a melamine-cured acrylic resin-based anionic electrodeposition coating film containing a sulfonic acid-based compound with an isocyanate curing type fluororesin-based organic solvent coating.


Inventors:
ORITO TAKASHI
Application Number:
JP2002320630A
Publication Date:
June 03, 2004
Filing Date:
November 05, 2002
Export Citation:
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Assignee:
KANSAI PAINT CO LTD
International Classes:
B05D1/36; B05D7/24; C09D5/44; C09D127/12; C09D133/00; C09D161/28; C09D175/04; (IPC1-7): C09D133/00; B05D1/36; B05D7/24; C09D5/44; C09D127/12; C09D161/28; C09D175/04