| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide polyurethanes, polyurethane(urea), sulfur-containing polyurethanes, sulfur-containing polyurethane(urea), and methods for their preparation. <P>SOLUTION: The present invention relates to the polyurethanes, the polyurethane(urea), the sulfur-containing polyurethanes, the sulfur-containing polyurethane(urea) and the methods for their preparation. The polyurethanes can be prepared by combining: polyisocyanate; trifunctional or higher-functional polyol having molecular weight of ≤200 grams/mole; and diol having molecular weight of ≤200 grams/mole. The polyurethane(urea) can be prepared by combining: polyisocyanate; trifunctional or higher-functional polyol diol and diamine. <P>COPYRIGHT: (C)2013,JPO&INPIT |
