1·The influence of some raw materials such as polyester the uniformity vesica nt foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.
探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。
2·The term covers a very wide range of polyurethanes, classified according to the method of manufacture.
此术语包括很宽范围的聚氨酯，按制造方法分类。
3·Polytetramethylene ether glycol (PTMEG) is one of important materials for production of spandex and thermoplastic polyurethanes elastomer (PU).
聚四亚甲基醚二醇(PTMEG)是生产氨纶和聚氨酯弹性体的重要原料之一。
4·A few of auxiliaries such as polyurethanes coating agents, detergents are influenced by certain inherent aromatic amide.
某些印染助剂也受到个别致癌芳香胺的影响，如聚氨酯涂层剂、净洗剂等。
5·Curable polyurethanes, coatings prepared therefrom, and method of making the same.
可固化的聚氨酯，由其制成的涂料，及其制备方法。