| 发明名称 |
HIGH-PURITY POLYMER GRANULES AND METHOD FOR THE PRODUCTION THEREOF |
| 摘要 |
The invention relates to a method for producing polymer granules, especially polycarbonate granules, from polymer melts, especially polycarbonate melts. Said melts are produced by melt-extrusion of the polymer, cooling off the melt in a cooling liquid and granulating the solidified polymer. The cooling air or ambient air with which the polymer is contacted has a solid particle content of maximally 10 ppm, preferably 5 ppm, particularly 0.5 ppm.
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| 申请公布号 |
WO0132381(A1) |
申请公布日期 |
2001.05.10 |
| 申请号 |
WO2000EP10401 |
申请日期 |
2000.10.23 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT;BAYER ANTWERPEN N. V.;ELSNER, THOMAS;HEUSER, JUERGEN;KORDS, CHRISTIAN;KUEHLING, STEFFEN;VIROUX, PAUL |
发明人 |
ELSNER, THOMAS;HEUSER, JUERGEN;KORDS, CHRISTIAN;KUEHLING, STEFFEN;VIROUX, PAUL |
| 分类号 |
B29B9/06;B29K69/00;C08J3/12;G11B7/2534;(IPC1-7):B29B9/06;C08G64/40;G02B1/04;G11B7/24 |
主分类号 |
B29B9/06 |
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