| 摘要 |
A polyrethane elastomer is disclosed that comprises: the reaction product of a prepolymer comprising: the reaction product of: (1) an aromatic ester polyol having the structure (I): wherein: R1 is a divalent radical selected from the group consisting of: (a) alkylene radicals of from 2 to 6 carbon atoms, and (b) radicals of the formula: -(R2O)n-R2- wherein R2 is an alkylene radial of 2 or 3 carbon atoms, n is an integer of from 1 to 3, and m is an integer of form 1 to 15; and (2) a diisocyanate; with a chain extender selected from the group consisting of water, aliphatic doils, aromatic diamines, and mixtures thereof. |
