| 摘要 |
<p>To provide an aqueous coating composition which contains a fluorinated copolymer and has excellent long-term storage stability and also excellent storage stability in cases where various components to be blended with a coating material are blended therewith; and a two-pack type curable aqueous coating material kit having excellent storage stability, in which the aqueous coating composition and a curing agent composition are used in combination. An aqueous coating composition, which comprises water and particles that have an average particle size of from 50 to 100 nm and are made of a fluorinated copolymer (A) having from 40 to 60 mol% of fluoroolefin polymerized units (a1), from 1 to 5 mol% of polymerized units (a2) having carboxy groups in which from 95 to 100 mol% of the carboxy groups are changed into carboxylate groups , from 4 to 30 mol% of polymerized units (a3) having crosslinking groups other than carboxy groups, and from 3 to 50 mol% of polymerized units (a4) having a group containing an ether bond or ester bond in its side chain, based on the total amount of polymerized units contained in the copolymer, and which is characterized by having a pH of from 7.0 to 9.5.</p> |
