发明名称 |
FremgangsmÕte for fremstilling av klar polyuretan-/urea- elastomerer |
摘要 |
A process for making clear elastomers is disclosed. First, a polyol having a narrow molecular weight distribution (Mw/Mn<1.5) reacts an aromatic diisocyanate at an NCO/OH ratio from about 1.3 to about 3.0 to give a non-viscous isocyanate-terminated prepolymer. A mixture that contains this prepolymer and an aliphatic diisocyanate is then reacted with an aromatic diamine to give a clear elastomer. The elastomers have excellent overall physical and mechanical properties, including resilience greater than 55%. The elastomers are valuable for in-line skates and other applications for which clarity is important. |
申请公布号 |
NO20004586(D0) |
申请公布日期 |
2000.09.14 |
申请号 |
NO20000004586 |
申请日期 |
2000.09.14 |
申请人 |
BAYER ANTWERPEN NV;LYONDELL CHEMIE TECHNOLOGIE NEDERLAND BV |
发明人 |
SENEKER, STEPHEN;CHEN, CHIN-CHANG |
分类号 |
A63C17/22;C08G18/10;C08G18/48;C08G18/72;(IPC1-7):C08G |
主分类号 |
A63C17/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|