发明名称 |
Conversion of sticky elastomeric polymer crumb into pellets without polymer degradation |
摘要 |
A process for pelletizing elastomeric anionically polymerized polymers which comprises subjecting the polymer to solid state extrusion in a single screw extruder with a length to diameter ratio of 10:1 or less wherein the barrel of the extruder has longitudinal grooves and transversally extending pins to increase mixing wherein the temperature in the extruder is sufficient to agglomerate or melt the polymer but be lower than the degradation temperature of the polymer and the speed of the extruder screw is from 30 to 100 rpm.
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申请公布号 |
US6458300(B1) |
申请公布日期 |
2002.10.01 |
申请号 |
US19990306123 |
申请日期 |
1999.05.06 |
申请人 |
KRATON POLYMERS U.S. LLC |
发明人 |
MEYER DE GROOT ELEANOR;YANG BING;STEWART DAVID RALPH |
分类号 |
B29B9/12;B29B7/42;B29B9/06;B29B9/10;B29C47/38;(IPC1-7):B29C47/36 |
主分类号 |
B29B9/12 |
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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