| 摘要 |
<p>Polyurethane/polyurea compositions comprising the reaction product of an organic diisocyanate, a glycol having a molecular weight of 500-5000 and a derivative of 2,4-diamino-benzoic acid selected from C1-C8 alkyl and substituted alkylesters, the amide, alkyl substituted amides, the anilide, substituted anilides, the nitrile and mixtures thereof.</p> |
