| 摘要 |
<p>RS(129)MK CIP of Case 1250 AN IMPROVED BLOWING CATALYST COMPOSITION FOR LOW DENSITY FLEXIBLE POLYURETHANE FOAMS - Low density flexible polyurethane foams can be prepared using water and relatively large amounts of methylene chloride as the foaming agents in the presence of an organic or inorganic tin compound as the gel catalyst and a foaming catalyst consisting essentially of catalytically effective amounts of an antimony carboxylate, a potassium carboxylate and a zinc carboxylate.</p> |
