申请人:BASF Corporation
公开号:EP0316788A2
公开(公告)日:1989-05-24
Moldable energy absorbing rigid polyurethane foams are prepared by reacting a polyoxyalkylene polyether polyol containing therein a graft polymer dispersion, an alkylene oxide adduct of an aromatic amine in the presence of a crosslinking agent with an organic polyisocyanate. Alternatively, the aromatic amine may be replaced with an alkylene oxide adduct of pentaerythritol, ethylenediamine, α-methylglucoside, sorbitol and sucrose. The products are useful in various automobile body parts.
可模塑的吸能硬质聚氨酯泡沫的制备方法是:将含有接枝聚合物分散体的聚氧亚烷基聚醚多元醇、芳香族胺的环氧烷基加合物在交联剂存在下与有机多异氰酸酯反应。或者,也可以用季戊四醇、乙二胺、α-甲基葡萄糖苷、山梨糖醇和蔗糖的环氧烷加合物代替芳香胺。这些产品适用于各种汽车车身部件。