| 摘要 |
<p>PURPOSE:To provide the titled vehicle composed of a polyurethane having a specific group in the molecule, having excellent adhesivity to the adherend such as polyester, nylon, PP, etc., excellent hydrolysis resistance and mildew resistance, and good dispersibility of pigment. CONSTITUTION:The objective vehicle is composed of a polyurethane having the group of formula, and prepared by reacting (A) an organic diisocyanate (preferably aliphatic and/or alicyclic diisocyanate) with (B) a polyester polyol having terminal OH group and composed of (a) 3-methyl-1,5-pentanediol or a mixed glycol containing the diol and (b) a dicarboxylic acid (preferably succinic acid, adipic acid, isophthalic acid, etc.). The average molecular weight of said polyol is preferably 600-6,000.</p> |
