| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a defoaming agent for water-based paint which can effectively eliminate foams generated in the occasions of preparation, coating, drying and baking of water-based paint, only by use of one kind of the defoaming agent, and further without impairing the external appearance of a dried coating film or the recoatability when the paint is recoated. Ž<P>SOLUTION: The defoaming agent for water-based paint has a composition prepared by dissolving (1) polyoxyethylene hydrogenated castor oil triisostearate and (2) poly(alkyl vinyl ether), polybutadiene, polybutene or polyisoprene in (3) liquid normal paraffine, liquid isoparaffine or liquid cycloparaffine so that the amount of (1) to be blended is 2-90 wt.% of the total weight of the composition. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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