| 摘要 |
<p>Disclosed are polyester based polyurethane microcellular elastomers, suitable for shoe soles, with intrinsic hydrolytic stability prepared by the reaction of a polyisocyanate with and isocyanate reactive composition. The elastomers are produced from a polyisocyanate which is a prepolymer containing a polyester based on isomeric mixtures of 1,3- and 1,4-cyclohexane dimethanol, where the isocyanate reactive composition contains such a polyester or where the polyester based on mixtures of 1,3- and 1,4-cyclohexane dimethanol are present in both the prepolymer and isocyanate reactive composition.</p> |
