发明名称 |
PROCESS AND APPARATUS FOR THE CRYSTALLISATION OF POLYTRIMETHYLENE TEREPHTHALATE |
摘要 |
A process for reducing the self-adhesiveness of polytrimethylene terephthalate pellets comprising the steps of: contacting melt-phase-polymerised polytrimethylene terephthalate pellets (21) having an intrinsic viscosity of a least 0.4 dl/g with an aqueous liquid (29) at a temperature within the range of 65 to 100 DEG C for a time sufficient to induce a degree of crystallinity of at least 35% in the polytrimethylene terephthalate pellets; and a crystallisation apparatus (11) for use therein. |
申请公布号 |
EP1177235(A1) |
申请公布日期 |
2002.02.06 |
申请号 |
EP20000931229 |
申请日期 |
2000.05.09 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
CHEN, YE-MON;COREY, ANN, MARIE;DUH, BEN |
分类号 |
B29B9/16;C08G63/88;(IPC1-7):C08G63/88;B01D9/00 |
主分类号 |
B29B9/16 |
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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