| 摘要 |
<p>An adhesive comprising a polyester polyol or polyurethane polyol having a structural unit represented by general formula (I) in the molecule (wherein R?1 and R2¿ are the same or different and each represents lower alkyl) and an organic polyisocyanate wherein the isocyanate groups have been optionally protected. The adhesive has an excellent initial adhesion strength, gives bonded articles excellent in permanent adhesion strength, hot-water resistance, flexibility, low-temperature flexibility, fatigue resistance, etc., and is useful for bonding plastics, metal, etc. The invention also provides a method for using the ingredients in bonding and the use of a mixture of the ingredients.</p> |
