发明公开
EP0286005A2 Flexible polyurea or polyurea-polyurethane foams prepared from high equivalent weight amine-terminated compounds and process for preparing the same 失效
从它们的制备胺封端的化合物和方法的柔性聚脲或聚脲 - 聚氨酯泡沫。

Flexible polyurea or polyurea-polyurethane foams prepared from high equivalent weight amine-terminated compounds and process for preparing the same
摘要:
Flexible polyurethane foams are prepared by reacting a polyisocyanate with certain amine-terminated compounds. The amine terminated compounds are charac­terized in having at least 30 percent of their active hydrogen-containing groups in the form of primary aromatic, Lewis acid-blocked primary aliphatic and/or secondary aromatic or aliphatic amine groups. The resulting foams exhibit excellent physical properties, even in the absence of a cross-linker compound.
信息查询
0/0