发明名称 |
PROCESS FOR MAKING CLEAR POLYURETHANE/UREA ELASTOMERS |
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 |
HU0101082(A3) |
申请公布日期 |
2002.06.28 |
申请号 |
HU20010001082 |
申请日期 |
1999.03.11 |
申请人 |
BAYER ANTWERPEN N.V., ANTWERPEN |
发明人 |
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分类号 |
A63C17/22;C08G18/10;C08G18/48;C08G18/72 |
主分类号 |
A63C17/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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