A raw rubber for millable polyether polyurethane elastomer was prepared. 研制了一种新型的聚醚型聚氨酯生胶。
They are synthesized by the reaction of a polyester polyol, or polyether polyol, with an aromatic or aliphatic isocyanate. 他们由一种聚酯多羟基化合物或聚醚多羟基化合物与另一种芳香或脂肪族异氰酸盐的反应而合成。
