Cationic electrodeposition coating material composition
AssigneeNippon Paint Automotive Coatings Co., Ltd.
InventorsTetsuya Ohara, Nobuhiro Miyamae, Yosuke Shimodaira, Toshio Inbe
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Abstract
The present invention relates to a cationic electrodeposition coating composition containing a resin emulsion containing an aminated resin (A) and a blocked isocyanate curing agent (B), characterized in that a deposited electrodeposition coating film of the cationic electrodeposition coating composition has a coating film viscosity in a range of 5,000 to 1,000,000 mPa·s at 110° C., and a portion resulting from removal of a resin component from the deposited electrodeposition coating film of the cationic electrodeposition coating composition has a polarity term in a range of 2 to 30 mN/m.
Claims8
A cationic electrodeposition coating composition comprising:
- a resin emulsion containing an aminated resin (A) and a blocked isocyanate curing agent (B), and
- an epoxy viscosity agent (D),
- wherein,
- a deposited electrodeposition coating film of the cationic electrodeposition coating composition has a coating film viscosity in a range of 5,000 to 1,000,000 mPa·s 110° C.,
- a portion resulting from removal of a resin component from the deposited electrodeposition coating film of the cationic electrodeposition coating composition has a polarity term in a range of 2 to 30 mN/m, and
- the epoxy viscosity agent (D) has an average particle size of 1 to 200 nm and a number-average molecular weight in a range of 100,000 to 10,000,000, and the epoxy viscosity agent (D) has amino groups, in which 30 to 100% of the amino groups is neutralized with acetic acid.
Dependencies are inferred from the claim text.