| 摘要 |
A polyurethane elastomer composition resistant to deterioration on aging at elevated temperature, formed by reaction of a reaction mixture comprising aliphatic diols and/or polyols, and an aliphatic diisocyanate of the formula: <CHEM> or an isocyanate-terminated prepolymer derived thereform, R1 being hydrogen or C1-C8 alkyl, R2 being C1-C8 alkyl or substituted C1-C8 alkyl and X being arylene. A water reactive diisocyanate compound and, optionally a radical scavenger compound is introduced into the reaction mixture before reaction thereof. |
