| 摘要 |
<p>Novel, curable polyurethane polymers in which a proportion of the NCO terminations are reacted with certain amino silanes, or with the residual on reaction of a mercaptosilane with a monoepoxide, or with the residual on reaction of an epoxysilane with secondary amine. Sealant compositions formed with the novel polymers are stable in storage, moisture curable and adhered well to various substrates, obviating the need for a primer.</p> |
