| 摘要 |
<p>An adhesive composition, which in the preferred aspects of the invention is a partially cured reaction product thereof in the form of a dried, heat-activatable, preformed film, is provided comprising in admixture a component having available free isocyanate groups and a poly-functional active hydrogen containing component consisting of, in combination, a hydroxyl terminated polyurethane polyester and a member containing at least difunctional active hydrogen having an active hydrogen equivalent weight of at least about 27 and less than about 500. The partially cured, preformed adhesive film, interposed between two surfaces to be joined together permits joint formation under pressure, at relatively low temperatures, thereby making it possible to join together various materials which would otherwise present a problem in joining because of their lack of heat resistance.</p> |
