Releasable aqueous coating composition and method of temporarily protecting finished coating film on automobile body by use of the same

摘要

The present invention relates to a releasable aqueous coating composition containing (A) a resin dispersion containing a carbonyl group- containing copolymer aqueous dispersion and a polyhydrazide compound in such a ratio that an amount of hydrazide group is in the range of 0.02 to 3.0 equivalents per one equivalent of carbonyl group in the emulsion particle, and (B) a release assistant; and a method of temporarily protecting a finished coating film of an automobile body, which method comprises coating said coating composition onto a surface of a finished cured coating film coated onto the automobile body.