Cationic electrodeposition coating composition
AssigneeNippon Paint Automotive Coatings Co., Ltd.
InventorsNamiko Sakai, Masayuki Kotani
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Abstract
Provided is a cationic electrodeposition coating composition having good anti-cratering performance. A cationic electrodeposition coating composition comprising a coating film-forming resin (A), a metal compound (B) containing a trivalent metal element, and a silicone compound (C), wherein a content of the metal compound (B) is 0.03 parts by mass or more and less than 4 parts by mass in terms of a metal element based on 100 parts by mass of a resin solid content of the coating film-forming resin (A), and a content of the silicone compound (C) is 0.005 parts by mass or more and 4.5 parts by mass or less based on 100 parts by mass of the resin solid content of the coating film-forming resin (A).
Claims6
A cationic electrodeposition coating composition comprising a coating film-forming resin (A), a silicone compound (C), and a pigment dispersion paste, wherein
- the pigment dispersion paste comprises a metal compound (B) containing a trivalent metal element, a pigment dispersion resin, a capping agent, and a pigment,
- the capping agent comprises one or more species selected from the group consisting of an amine-modified epoxy resin having a hydroxyl value of 150 mg KOH/g or more and 650 mg KOH/g or less and an amine value of 30 mg KOH/g or more and 190 mg KOH/g or less, and a polyvalent acid,
- a content of the metal compound (B) is 0.03 parts by mass or more and less than 4 parts by mass in terms of a metal element based on 100 parts by mass of a resin solid content of the coating film-forming resin (A),
- a content of the silicone compound (C) is 0.005 parts by mass or more and 4.5 parts by mass or less based on 100 parts by mass of the resin solid content of the coating film-forming resin (A),
- the metal element contained in the metal compound (B) is one or more selected from the group consisting of Y, La, Ce, Nd, Pr, Yb, and Bi, and
- a SP value of the silicone compound (C) is 12.0 or more and 15.0 or less.
Dependencies are inferred from the claim text.