| 摘要 |
PURPOSE:The titled composition suitable of metallic primer for cars, etc., providing a film having improved flexibility, impact resistance, and corrosion resistance, containing a primary, a secondary amino group, a block isocyanate group, amide group, and an urea group. CONSTITUTION:The desired resin composition containing an primary amino group and/or a secondary amino group, a block isocyanate group, two or more amide group and an urea group, obtained preferably by reacting (A) a polyamide polyamine containing the primary amino group (preferably ketiminized one) and/ or the secondary amino group with (B) a partial block polyisocyanate compound, and, if necessary, (C) a polyisocyanate compound in an equivalent ratio of the primary amino group and/or the secondary amino group of the component A: the block isocyanate group of the component B=1:0.2-5.
|
