| 摘要 |
A process for preparing a polyurethane comprising reacting a thioether amide diol prepared by reacting a bicyclic amide acetal with hydrogen sulfide at a temperature in the range of from 20 DEG to 200 DEG C. wherein a mole ration of bicyclic amide acetal to hydrogen sulfide is in the range of from about 1:1 to about 2:1 is described.
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