| 摘要 |
<p>A solvent-free polyurethane adhesive for heat sealing textiles which is resistant to solvents and detergents used in dry cleaning processes which is prepared froma) about 55 to about 95% by weight, based on the whole polyurethane mass, of at least one compound which contains at least two aliphatic hydroxyl groups and has a molecular weight of from about 1000 to about 2500 and a melting point of from about 25.degree. to about 130.degree.C,b) at least one organic polyisocyanate, preferably present in about 5 to about 45% by weight, andc) 0 to about 15% by weight, based on the whole polyurethane mass, of at least one aliphatic polyol and/or polyamine, using an equivalent ratio of = 0.9 to 1.05 is provided.</p> |
