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專利授權區
專利名稱(中)	純化聚對苯二甲酸丁二醇酯的方法及裝置
專利名稱(英)	METHOD AND DEVICE OF PURIFYING POLYBUTYLENE TEREPHTHALATE
專利家族	中華民國：I666231 大陸：4150437 美國：10,508,177
專利權人	國立清華大學 65.22% ,長春石油化學股份有限公司 13.04% ,長春人造樹脂廠股份有限公司 21.74%
發明人	談駿嵩
技術領域	材料化工

專利摘要(中)
A method for purifying polybutylene terephthalate (PBT) includes: providing or receiving initial PBT, in which oligomers and tetrahydrofuran are present; dissolving the initial PBT in hexafluoroisopropanol (HFIP) to form a solution, in which the oligomers are also dissolved in the HFIP; and contacting the solution with compressed CO2 at a temperature and a pressure, thereby precipitating the purified PBT, resulting from a large portion of the oligomers are still dissolved in the HFIP, in the operation the temperature is in a range of 20°C to 35°C, and the pressure is in a range of 900 psi to 1400 psi. A device for purifying PBT is also provided.

專利摘要(中)

A method for purifying polybutylene terephthalate (PBT) includes: providing or receiving initial PBT, in which oligomers and tetrahydrofuran are present; dissolving the initial PBT in hexafluoroisopropanol (HFIP) to form a solution, in which the oligomers are also dissolved in the HFIP; and contacting the solution with compressed CO2 at a temperature and a pressure, thereby precipitating the purified PBT, resulting from a large portion of the oligomers are still dissolved in the HFIP, in the operation the temperature is in a range of 20°C to 35°C, and the pressure is in a range of 900 psi to 1400 psi. A device for purifying PBT is also provided.

聯絡資訊
承辦人姓名	李馥如