| 摘要 |
<p>CATALYST SYSTEMS FOR POLYURETHANE SYSTEMS A catalyst composition is disclosed for polyurethane production by reaction between aliphatic hydroxylcontaining compounds and secondary or tertiary aliphatic isocyanate group containing compounds, comprising (i) 1,8diazabicyclo(5.4.0)-undecene-7, or a salt thereof; (ii) an organic tin compound and, optionally, (iii) an organic lead compound.</p> |
